GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2024-26608 (GCVE-0-2024-26608)

Vulnerability from cvelistv5 – Published: 2024-02-29 15:52 – Updated: 2026-08-05 11:26
VLAI
Title
ksmbd: fix global oob in ksmbd_nl_policy
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix global oob in ksmbd_nl_policy Similar to a reported issue (check the commit b33fb5b801c6 ("net: qualcomm: rmnet: fix global oob in rmnet_policy"), my local fuzzer finds another global out-of-bounds read for policy ksmbd_nl_policy. See bug trace below: ================================================================== BUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline] BUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600 Read of size 1 at addr ffffffff8f24b100 by task syz-executor.1/62810 CPU: 0 PID: 62810 Comm: syz-executor.1 Tainted: G N 6.1.0 #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x172/0x475 mm/kasan/report.c:395 kasan_report+0xbb/0x1c0 mm/kasan/report.c:495 validate_nla lib/nlattr.c:386 [inline] __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600 __nla_parse+0x3e/0x50 lib/nlattr.c:697 __nlmsg_parse include/net/netlink.h:748 [inline] genl_family_rcv_msg_attrs_parse.constprop.0+0x1b0/0x290 net/netlink/genetlink.c:565 genl_family_rcv_msg_doit+0xda/0x330 net/netlink/genetlink.c:734 genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0x441/0x780 net/netlink/genetlink.c:850 netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0x154/0x190 net/socket.c:734 ____sys_sendmsg+0x6df/0x840 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fdd66a8f359 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fdd65e00168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fdd66bbcf80 RCX: 00007fdd66a8f359 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000003 RBP: 00007fdd66ada493 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc84b81aff R14: 00007fdd65e00300 R15: 0000000000022000 </TASK> The buggy address belongs to the variable: ksmbd_nl_policy+0x100/0xa80 The buggy address belongs to the physical page: page:0000000034f47940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ccc4b flags: 0x200000000001000(reserved|node=0|zone=2) raw: 0200000000001000 ffffea00073312c8 ffffea00073312c8 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffffffff8f24b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffff8f24b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffffff8f24b100: f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 07 f9 ^ ffffffff8f24b180: f9 f9 f9 f9 00 05 f9 f9 f9 f9 f9 f9 00 00 00 05 ffffffff8f24b200: f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9 00 00 04 f9 ================================================================== To fix it, add a placeholder named __KSMBD_EVENT_MAX and let KSMBD_EVENT_MAX to be its original value - 1 according to what other netlink families do. Also change two sites that refer the KSMBD_EVENT_MAX to correct value.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-07 20:08 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < aaa1f1a2ee80888c12ae2783f3a0be10e14067c5 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 9863a53100f47652755545c2bd43e14a1855104d (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 6993328a4cd62a24df254b587c0796a4a1eecc95 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < ebeae8adf89d9a82359f6659b1663d09beec2faa (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.149 , ≤ 5.15.* (semver)
Unaffected: 6.1.76 , ≤ 6.1.* (semver)
Unaffected: 6.6.15 , ≤ 6.6.* (semver)
Unaffected: 6.7.3 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
linux linux_kernel Affected: 0626e6641f6b , < aaa1f1a2ee80 (git)
Affected: 0626e6641f6b , < 2c939c74ef0b (git)
Affected: 0626e6641f6b , < 9863a53100f4 (git)
Affected: 0626e6641f6b , < 6993328a4cd6 (git)
Affected: 0626e6641f6b , < ebeae8adf89d (git)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Create a notification for this product.
linux linux_kernel Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.149 , ≤ 5.15.0 (semver)
Unaffected: 6.1.76 , ≤ 6.1.0 (semver)
Unaffected: 6.6.15 , ≤ 6.6.0 (semver)
Unaffected: 6.7.3 , ≤ 6.7.0 (semver)
Unaffected: 6.8 , < * (semver)
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unaffected",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "lessThan": "aaa1f1a2ee80",
                "status": "affected",
                "version": "0626e6641f6b",
                "versionType": "git"
              },
              {
                "lessThan": "2c939c74ef0b",
                "status": "affected",
                "version": "0626e6641f6b",
                "versionType": "git"
              },
              {
                "lessThan": "9863a53100f4",
                "status": "affected",
                "version": "0626e6641f6b",
                "versionType": "git"
              },
              {
                "lessThan": "6993328a4cd6",
                "status": "affected",
                "version": "0626e6641f6b",
                "versionType": "git"
              },
              {
                "lessThan": "ebeae8adf89d",
                "status": "affected",
                "version": "0626e6641f6b",
                "versionType": "git"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "affected",
            "product": "linux_kernel",
            "vendor": "linux",
            "versions": [
              {
                "status": "affected",
                "version": "5.15"
              },
              {
                "lessThan": "5.15",
                "status": "unaffected",
                "version": "0",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "5.15.0",
                "status": "unaffected",
                "version": "5.15.149",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.1.0",
                "status": "unaffected",
                "version": "6.1.76",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.6.0",
                "status": "unaffected",
                "version": "6.6.15",
                "versionType": "semver"
              },
              {
                "lessThanOrEqual": "6.7.0",
                "status": "unaffected",
                "version": "6.7.3",
                "versionType": "semver"
              },
              {
                "lessThan": "*",
                "status": "unaffected",
                "version": "6.8",
                "versionType": "semver"
              }
            ]
          }
        ],
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-26608",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-07T20:08:53.523134Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-125",
                "description": "CWE-125 Out-of-bounds Read",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-12T18:26:16.252Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:07:19.615Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/ksmbd_netlink.h",
            "fs/smb/server/transport_ipc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aaa1f1a2ee80888c12ae2783f3a0be10e14067c5",
              "status": "affected",
              "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
              "versionType": "git"
            },
            {
              "lessThan": "2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a",
              "status": "affected",
              "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
              "versionType": "git"
            },
            {
              "lessThan": "9863a53100f47652755545c2bd43e14a1855104d",
              "status": "affected",
              "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
              "versionType": "git"
            },
            {
              "lessThan": "6993328a4cd62a24df254b587c0796a4a1eecc95",
              "status": "affected",
              "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
              "versionType": "git"
            },
            {
              "lessThan": "ebeae8adf89d9a82359f6659b1663d09beec2faa",
              "status": "affected",
              "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/ksmbd_netlink.h",
            "fs/smb/server/transport_ipc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.76",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.15",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.149",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.76",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.15",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.3",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8",
                  "versionStartIncluding": "5.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix global oob in ksmbd_nl_policy\n\nSimilar to a reported issue (check the commit b33fb5b801c6 (\"net:\nqualcomm: rmnet: fix global oob in rmnet_policy\"), my local fuzzer finds\nanother global out-of-bounds read for policy ksmbd_nl_policy. See bug\ntrace below:\n\n==================================================================\nBUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline]\nBUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600\nRead of size 1 at addr ffffffff8f24b100 by task syz-executor.1/62810\n\nCPU: 0 PID: 62810 Comm: syz-executor.1 Tainted: G                 N 6.1.0 #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:284 [inline]\n print_report+0x172/0x475 mm/kasan/report.c:395\n kasan_report+0xbb/0x1c0 mm/kasan/report.c:495\n validate_nla lib/nlattr.c:386 [inline]\n __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600\n __nla_parse+0x3e/0x50 lib/nlattr.c:697\n __nlmsg_parse include/net/netlink.h:748 [inline]\n genl_family_rcv_msg_attrs_parse.constprop.0+0x1b0/0x290 net/netlink/genetlink.c:565\n genl_family_rcv_msg_doit+0xda/0x330 net/netlink/genetlink.c:734\n genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]\n genl_rcv_msg+0x441/0x780 net/netlink/genetlink.c:850\n netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540\n genl_rcv+0x24/0x40 net/netlink/genetlink.c:861\n netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345\n netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg+0x154/0x190 net/socket.c:734\n ____sys_sendmsg+0x6df/0x840 net/socket.c:2482\n ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536\n __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7fdd66a8f359\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fdd65e00168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007fdd66bbcf80 RCX: 00007fdd66a8f359\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000003\nRBP: 00007fdd66ada493 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007ffc84b81aff R14: 00007fdd65e00300 R15: 0000000000022000\n \u003c/TASK\u003e\n\nThe buggy address belongs to the variable:\n ksmbd_nl_policy+0x100/0xa80\n\nThe buggy address belongs to the physical page:\npage:0000000034f47940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ccc4b\nflags: 0x200000000001000(reserved|node=0|zone=2)\nraw: 0200000000001000 ffffea00073312c8 ffffea00073312c8 0000000000000000\nraw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\n\nMemory state around the buggy address:\n ffffffff8f24b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffffffff8f24b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n\u003effffffff8f24b100: f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 07 f9\n                   ^\n ffffffff8f24b180: f9 f9 f9 f9 00 05 f9 f9 f9 f9 f9 f9 00 00 00 05\n ffffffff8f24b200: f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9 00 00 04 f9\n==================================================================\n\nTo fix it, add a placeholder named __KSMBD_EVENT_MAX and let\nKSMBD_EVENT_MAX to be its original value - 1 according to what other\nnetlink families do. Also change two sites that refer the\nKSMBD_EVENT_MAX to correct value."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is triggered by a crafted generic-netlink message sent with sendmsg() on an AF_NETLINK socket to the \"ksmbd_events\" family, which requires local access; it is not reachable from an SMB client on TCP/445.\nAC:L - A single netlink message containing an attribute with nla_type == 16 deterministically drives validate_nla() past the end of ksmbd_nl_policy[]; no race, timing, or memory-layout condition outside the attacker\u0027s control is involved.\nPR:L - Any unprivileged local user can open a NETLINK_GENERIC socket; the ksmbd genl ops carry no GENL_ADMIN_PERM flag, and the CONFIG_SMB_SERVER_CHECK_CAP_NET_ADMIN check sits inside the doit handlers, which run after the out-of-bounds policy parse. It is also reachable from an unprivileged user+net namespace since the family sets .netnsok = true.\nUI:N - The attacker triggers the bug entirely from their own process via a single sendmsg(); no victim action or interaction is required.\nS:U - The out-of-bounds access and its consequences are confined to the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The out-of-bounds nla_policy entry can select NLA_REJECT, causing extack-\u003e_msg to be set from an out-of-bounds pointer whose string is then copied to userspace via NLMSGERR_ATTR_MSG, or NLA_NESTED, causing recursive parsing through an out-of-bounds nested_policy pointer \u2014 both amount to a kernel-memory read primitive.\nI:H - If the out-of-bounds entry\u0027s validation_type is NLA_VALIDATE_FUNCTION, validate_nla() performs an indirect call through the out-of-bounds pt-\u003evalidate pointer, giving control-flow influence rather than a mere read.\nA:H - validate_nla() executes BUG_ON(pt-\u003etype \u003e NLA_TYPE_MAX) on the out-of-bounds entry, so any adjacent .rodata byte above 20 causes an immediate kernel BUG/oops (and an outright panic on KASAN or panic_on_oops kernels), repeatedly triggerable by an unprivileged user."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:26:12.946Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a"
        },
        {
          "url": "https://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d"
        },
        {
          "url": "https://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95"
        },
        {
          "url": "https://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa"
        }
      ],
      "title": "ksmbd: fix global oob in ksmbd_nl_policy",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26608",
    "datePublished": "2024-02-29T15:52:14.626Z",
    "dateReserved": "2024-02-19T14:20:24.130Z",
    "dateUpdated": "2026-08-05T11:26:12.946Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-26608",
      "date": "2026-09-19",
      "epss": "0.00234",
      "percentile": "0.14616"
    },
    "fkie_nvd": {
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix global oob in ksmbd_nl_policy\n\nSimilar to a reported issue (check the commit b33fb5b801c6 (\"net:\nqualcomm: rmnet: fix global oob in rmnet_policy\"), my local fuzzer finds\nanother global out-of-bounds read for policy ksmbd_nl_policy. See bug\ntrace below:\n\n==================================================================\nBUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline]\nBUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600\nRead of size 1 at addr ffffffff8f24b100 by task syz-executor.1/62810\n\nCPU: 0 PID: 62810 Comm: syz-executor.1 Tainted: G                 N 6.1.0 #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:284 [inline]\n print_report+0x172/0x475 mm/kasan/report.c:395\n kasan_report+0xbb/0x1c0 mm/kasan/report.c:495\n validate_nla lib/nlattr.c:386 [inline]\n __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600\n __nla_parse+0x3e/0x50 lib/nlattr.c:697\n __nlmsg_parse include/net/netlink.h:748 [inline]\n genl_family_rcv_msg_attrs_parse.constprop.0+0x1b0/0x290 net/netlink/genetlink.c:565\n genl_family_rcv_msg_doit+0xda/0x330 net/netlink/genetlink.c:734\n genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]\n genl_rcv_msg+0x441/0x780 net/netlink/genetlink.c:850\n netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540\n genl_rcv+0x24/0x40 net/netlink/genetlink.c:861\n netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345\n netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg+0x154/0x190 net/socket.c:734\n ____sys_sendmsg+0x6df/0x840 net/socket.c:2482\n ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536\n __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7fdd66a8f359\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fdd65e00168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007fdd66bbcf80 RCX: 00007fdd66a8f359\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000003\nRBP: 00007fdd66ada493 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007ffc84b81aff R14: 00007fdd65e00300 R15: 0000000000022000\n \u003c/TASK\u003e\n\nThe buggy address belongs to the variable:\n ksmbd_nl_policy+0x100/0xa80\n\nThe buggy address belongs to the physical page:\npage:0000000034f47940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ccc4b\nflags: 0x200000000001000(reserved|node=0|zone=2)\nraw: 0200000000001000 ffffea00073312c8 ffffea00073312c8 0000000000000000\nraw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\n\nMemory state around the buggy address:\n ffffffff8f24b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffffffff8f24b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n\u003effffffff8f24b100: f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 07 f9\n                   ^\n ffffffff8f24b180: f9 f9 f9 f9 00 05 f9 f9 f9 f9 f9 f9 00 00 00 05\n ffffffff8f24b200: f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9 00 00 04 f9\n==================================================================\n\nTo fix it, add a placeholder named __KSMBD_EVENT_MAX and let\nKSMBD_EVENT_MAX to be its original value - 1 according to what other\nnetlink families do. Also change two sites that refer the\nKSMBD_EVENT_MAX to correct value."
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ksmbd: corrige el oob global en ksmbd_nl_policy Similar a un problema reportado (verifique el commit b33fb5b801c6 (\"net: qualcomm: rmnet: corrige el oob global en rmnet_policy\"), mi fuzzer local encuentra otra Lectura global fuera de los l\u00edmites para la pol\u00edtica ksmbd_nl_policy. Consulte el seguimiento del error a continuaci\u00f3n: ==================================== ================================ ERROR: KASAN: global fuera de los l\u00edmites en validar_nla lib/nlattr.c :386 [en l\u00ednea] ERROR: KASAN: global fuera de los l\u00edmites en __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600 Lectura de tama\u00f1o 1 en addr ffffffff8f24b100 por tarea syz-executor.1/62810 CPU: 0 PID: 62810 Comm: syz-executor.1 Contaminado: GN 6.1.0 #3 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 01/04/2014 Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [en l\u00ednea] print_report+0x172/0x475 mm/kasan/report.c:395 kasan_report +0xbb/0x1c0 mm/kasan/report.c:495 validar_nla lib/nlattr.c:386 [en l\u00ednea] __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600 __nla_parse+0x3e/0x50 lib/nlattr.c:697 __nlmsg_parse incluir /net/netlink.h:748 [en l\u00ednea] genl_family_rcv_msg_attrs_parse.constprop.0+0x1b0/0x290 net/netlink/genetlink.c:565 genl_family_rcv_msg_doit+0xda/0x330 net/netlink/genetlink.c:734 genl_family_rcv_msg net/netlink/genetlink. c:833 [en l\u00ednea] genl_rcv_msg+0x441/0x780 net/netlink/genetlink.c:850 netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net /netlink/af_netlink.c:1319 [en l\u00ednea] netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [en l\u00ednea] sock_sendmsg+0x154/0x190 net/socket.c:734 ____sys_sendmsg+0x6df/0x840 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket. c:2565 do_syscall_x64 arco /x86/entry/common.c:50 [en l\u00ednea] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fdd66a8f359 C\u00f3digo: 28 00 00 00 75 05 48 8 3 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff f ff f7 d8 64 89 01 48 RSP: 002b:00007fdd65e00168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fdd66bbcf80 RCX: 00007fdd66a8 f359 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000003 RBP: 00007fdd66ada493 R08: 00000000000000000 R09: 00000000000000000 R 10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc84b81aff R14: 00007fdd65e00300 R15: 0000000000022000  La direcci\u00f3n del error pertenece a la variable: ksmbd_nl_policy+0x 100/0xa80 La direcci\u00f3n del error pertenece a la p\u00e1gina f\u00edsica: p\u00e1gina:0000000034f47940 refcount:1 mapcount:0 mapeo: 0000000000000000 \u00edndice: 0x0 pfn: 0x1ccc4b banderas: 0x200000000001000 (reservado | nodo = 0 | zona = 2) sin formato: 02000000000001000 ffffea00073312c8 ffffea00073312c8 000000000 0000000 raw: 0000000000000000 00000000000000000 00000001ffffffff 0000000000000000 p\u00e1gina volcada porque: kasan: mal acceso detectado Estado de la memoria alrededor de la direcci\u00f3n con errores: ffffffff8f24b000 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffff8f24b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \u0026gt;ffffffff8f24b100 : f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 07 f9 ^ ffffffff8f24b180: f9 f9 f9 f9 00 05 f9 f9 f9 f9 f9 f9 00 00 00 05 ffffffff8f24b200: f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9 00 00 04 f9 ======== = ==================================================== ======= Para solucionarlo, agregue un marcador de posici\u00f3n llamado __KSMBD_EVENT_MAX y truncado"
        }
      ],
      "id": "CVE-2024-26608",
      "lastModified": "2024-11-21T09:02:39.107",
      "metrics": {
        "cvssMetricV31": [
          {
            "cvssData": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            },
            "exploitabilityScore": 1.8,
            "impactScore": 5.9,
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      },
      "published": "2024-03-11T18:15:18.953",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-125"
            }
          ],
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "fs/smb/server/ksmbd_netlink.h",
                  "fs/smb/server/transport_ipc.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "aaa1f1a2ee80888c12ae2783f3a0be10e14067c5",
                    "status": "affected",
                    "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a",
                    "status": "affected",
                    "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9863a53100f47652755545c2bd43e14a1855104d",
                    "status": "affected",
                    "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6993328a4cd62a24df254b587c0796a4a1eecc95",
                    "status": "affected",
                    "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ebeae8adf89d9a82359f6659b1663d09beec2faa",
                    "status": "affected",
                    "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "fs/smb/server/ksmbd_netlink.h",
                  "fs/smb/server/transport_ipc.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.15"
                  },
                  {
                    "lessThan": "5.15",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.149",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.76",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.15",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.7.*",
                    "status": "unaffected",
                    "version": "6.7.3",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.8",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          },
          {
            "affectedData": [
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "aaa1f1a2ee80",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "2c939c74ef0b",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9863a53100f4",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6993328a4cd6",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ebeae8adf89d",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "affected",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.15"
                  },
                  {
                    "lessThan": "5.15",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.0",
                    "status": "unaffected",
                    "version": "5.15.149",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.0",
                    "status": "unaffected",
                    "version": "6.1.76",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.0",
                    "status": "unaffected",
                    "version": "6.6.15",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.7.0",
                    "status": "unaffected",
                    "version": "6.7.3",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "6.8",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5DAC8D7B-7B93-476C-86C0-E4A247061C4E",
                    "versionEndExcluding": "5.15.149",
                    "versionStartIncluding": "5.15",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "32F0FEB3-5FE1-4400-A56D-886F09BE872E",
                    "versionEndExcluding": "6.1.76",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "87C718CB-AE3D-4B07-B4D9-BFF64183C468",
                    "versionEndExcluding": "6.6.15",
                    "versionStartIncluding": "6.2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "58FD5308-148A-40D3-B36A-0CA6B434A8BF",
                    "versionEndExcluding": "6.7.3",
                    "versionStartIncluding": "6.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*",
                    "matchCriteriaId": "B9F4EA73-0894-400F-A490-3A397AB7A517",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix global oob in ksmbd_nl_policy\n\nSimilar to a reported issue (check the commit b33fb5b801c6 (\"net:\nqualcomm: rmnet: fix global oob in rmnet_policy\"), my local fuzzer finds\nanother global out-of-bounds read for policy ksmbd_nl_policy. See bug\ntrace below:\n\n==================================================================\nBUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline]\nBUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600\nRead of size 1 at addr ffffffff8f24b100 by task syz-executor.1/62810\n\nCPU: 0 PID: 62810 Comm: syz-executor.1 Tainted: G                 N 6.1.0 #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:284 [inline]\n print_report+0x172/0x475 mm/kasan/report.c:395\n kasan_report+0xbb/0x1c0 mm/kasan/report.c:495\n validate_nla lib/nlattr.c:386 [inline]\n __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600\n __nla_parse+0x3e/0x50 lib/nlattr.c:697\n __nlmsg_parse include/net/netlink.h:748 [inline]\n genl_family_rcv_msg_attrs_parse.constprop.0+0x1b0/0x290 net/netlink/genetlink.c:565\n genl_family_rcv_msg_doit+0xda/0x330 net/netlink/genetlink.c:734\n genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]\n genl_rcv_msg+0x441/0x780 net/netlink/genetlink.c:850\n netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540\n genl_rcv+0x24/0x40 net/netlink/genetlink.c:861\n netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345\n netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg+0x154/0x190 net/socket.c:734\n ____sys_sendmsg+0x6df/0x840 net/socket.c:2482\n ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536\n __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7fdd66a8f359\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fdd65e00168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007fdd66bbcf80 RCX: 00007fdd66a8f359\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000003\nRBP: 00007fdd66ada493 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007ffc84b81aff R14: 00007fdd65e00300 R15: 0000000000022000\n \u003c/TASK\u003e\n\nThe buggy address belongs to the variable:\n ksmbd_nl_policy+0x100/0xa80\n\nThe buggy address belongs to the physical page:\npage:0000000034f47940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ccc4b\nflags: 0x200000000001000(reserved|node=0|zone=2)\nraw: 0200000000001000 ffffea00073312c8 ffffea00073312c8 0000000000000000\nraw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\n\nMemory state around the buggy address:\n ffffffff8f24b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffffffff8f24b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n\u003effffffff8f24b100: f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 07 f9\n                   ^\n ffffffff8f24b180: f9 f9 f9 f9 00 05 f9 f9 f9 f9 f9 f9 00 00 00 05\n ffffffff8f24b200: f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9 00 00 04 f9\n==================================================================\n\nTo fix it, add a placeholder named __KSMBD_EVENT_MAX and let\nKSMBD_EVENT_MAX to be its original value - 1 according to what other\nnetlink families do. Also change two sites that refer the\nKSMBD_EVENT_MAX to correct value."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ksmbd: corrige el oob global en ksmbd_nl_policy Similar a un problema reportado (verifique el commit b33fb5b801c6 (\"net: qualcomm: rmnet: corrige el oob global en rmnet_policy\"), mi fuzzer local encuentra otra Lectura global fuera de los l\u00edmites para la pol\u00edtica ksmbd_nl_policy. Consulte el seguimiento del error a continuaci\u00f3n: ==================================== ================================ ERROR: KASAN: global fuera de los l\u00edmites en validar_nla lib/nlattr.c :386 [en l\u00ednea] ERROR: KASAN: global fuera de los l\u00edmites en __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600 Lectura de tama\u00f1o 1 en addr ffffffff8f24b100 por tarea syz-executor.1/62810 CPU: 0 PID: 62810 Comm: syz-executor.1 Contaminado: GN 6.1.0 #3 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 01/04/2014 Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:88 [en l\u00ednea] dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [en l\u00ednea] print_report+0x172/0x475 mm/kasan/report.c:395 kasan_report +0xbb/0x1c0 mm/kasan/report.c:495 validar_nla lib/nlattr.c:386 [en l\u00ednea] __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600 __nla_parse+0x3e/0x50 lib/nlattr.c:697 __nlmsg_parse incluir /net/netlink.h:748 [en l\u00ednea] genl_family_rcv_msg_attrs_parse.constprop.0+0x1b0/0x290 net/netlink/genetlink.c:565 genl_family_rcv_msg_doit+0xda/0x330 net/netlink/genetlink.c:734 genl_family_rcv_msg net/netlink/genetlink. c:833 [en l\u00ednea] genl_rcv_msg+0x441/0x780 net/netlink/genetlink.c:850 netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net /netlink/af_netlink.c:1319 [en l\u00ednea] netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [en l\u00ednea] sock_sendmsg+0x154/0x190 net/socket.c:734 ____sys_sendmsg+0x6df/0x840 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket. c:2565 do_syscall_x64 arco /x86/entry/common.c:50 [en l\u00ednea] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 Entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fdd66a8f359 C\u00f3digo: 28 00 00 00 75 05 48 8 3 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff f ff f7 d8 64 89 01 48 RSP: 002b:00007fdd65e00168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fdd66bbcf80 RCX: 00007fdd66a8 f359 RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000003 RBP: 00007fdd66ada493 R08: 00000000000000000 R09: 00000000000000000 R 10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc84b81aff R14: 00007fdd65e00300 R15: 0000000000022000  La direcci\u00f3n del error pertenece a la variable: ksmbd_nl_policy+0x 100/0xa80 La direcci\u00f3n del error pertenece a la p\u00e1gina f\u00edsica: p\u00e1gina:0000000034f47940 refcount:1 mapcount:0 mapeo: 0000000000000000 \u00edndice: 0x0 pfn: 0x1ccc4b banderas: 0x200000000001000 (reservado | nodo = 0 | zona = 2) sin formato: 02000000000001000 ffffea00073312c8 ffffea00073312c8 000000000 0000000 raw: 0000000000000000 00000000000000000 00000001ffffffff 0000000000000000 p\u00e1gina volcada porque: kasan: mal acceso detectado Estado de la memoria alrededor de la direcci\u00f3n con errores: ffffffff8f24b000 : 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffffff8f24b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \u0026gt;ffffffff8f24b100 : f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 07 f9 ^ ffffffff8f24b180: f9 f9 f9 f9 00 05 f9 f9 f9 f9 f9 f9 00 00 00 05 ffffffff8f24b200: f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9 00 00 04 f9 ======== = ==================================================== ======= Para solucionarlo, agregue un marcador de posici\u00f3n llamado __KSMBD_EVENT_MAX y truncado"
          }
        ],
        "id": "CVE-2024-26608",
        "lastModified": "2026-06-17T07:17:53.110",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2024-26608",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-07T20:08:53.523134Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-03-11T18:15:18.953",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-125"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T14:35:27+00:00",
      "cve": "CVE-2024-26608",
      "id": "CVE-2024-26608",
      "initial_release_date": "2024-02-29T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ksmbd: fix global oob in ksmbd_nl_policy",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-26608.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T01:35:47Z",
      "cve": "CVE-2024-26608",
      "id": "CVE-2024-26608",
      "initial_release_date": "2024-03-13T04:22:23Z",
      "product_status:known_not_affected": "436",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-26608",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-26608.json",
      "version": "20"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "providerMetadata": {
              "dateUpdated": "2024-08-02T00:07:19.615Z",
              "orgId": "af854a3a-2127-422b-91ae-364da2661108",
              "shortName": "CVE"
            },
            "references": [
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95"
              },
              {
                "tags": [
                  "x_transferred"
                ],
                "url": "https://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa"
              }
            ],
            "title": "CVE Program Container"
          },
          {
            "affected": [
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "unaffected",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "lessThan": "aaa1f1a2ee80",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "2c939c74ef0b",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9863a53100f4",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "6993328a4cd6",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ebeae8adf89d",
                    "status": "affected",
                    "version": "0626e6641f6b",
                    "versionType": "git"
                  }
                ]
              },
              {
                "cpes": [
                  "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*"
                ],
                "defaultStatus": "affected",
                "product": "linux_kernel",
                "vendor": "linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.15"
                  },
                  {
                    "lessThan": "5.15",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.0",
                    "status": "unaffected",
                    "version": "5.15.149",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.0",
                    "status": "unaffected",
                    "version": "6.1.76",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.0",
                    "status": "unaffected",
                    "version": "6.6.15",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.7.0",
                    "status": "unaffected",
                    "version": "6.7.3",
                    "versionType": "semver"
                  },
                  {
                    "lessThan": "*",
                    "status": "unaffected",
                    "version": "6.8",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "metrics": [
              {
                "cvssV3_1": {
                  "attackComplexity": "LOW",
                  "attackVector": "LOCAL",
                  "availabilityImpact": "HIGH",
                  "baseScore": 7.8,
                  "baseSeverity": "HIGH",
                  "confidentialityImpact": "HIGH",
                  "integrityImpact": "HIGH",
                  "privilegesRequired": "LOW",
                  "scope": "UNCHANGED",
                  "userInteraction": "NONE",
                  "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "version": "3.1"
                }
              },
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-26608",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-11-07T20:08:53.523134Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-125",
                    "description": "CWE-125 Out-of-bounds Read",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-07-05T15:20:41.711Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "fs/smb/server/ksmbd_netlink.h",
                "fs/smb/server/transport_ipc.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "aaa1f1a2ee80888c12ae2783f3a0be10e14067c5",
                  "status": "affected",
                  "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                  "versionType": "git"
                },
                {
                  "lessThan": "2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a",
                  "status": "affected",
                  "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                  "versionType": "git"
                },
                {
                  "lessThan": "9863a53100f47652755545c2bd43e14a1855104d",
                  "status": "affected",
                  "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                  "versionType": "git"
                },
                {
                  "lessThan": "6993328a4cd62a24df254b587c0796a4a1eecc95",
                  "status": "affected",
                  "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                  "versionType": "git"
                },
                {
                  "lessThan": "ebeae8adf89d9a82359f6659b1663d09beec2faa",
                  "status": "affected",
                  "version": "0626e6641f6b467447c81dd7678a69c66f7746cf",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "fs/smb/server/ksmbd_netlink.h",
                "fs/smb/server/transport_ipc.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "5.15"
                },
                {
                  "lessThan": "5.15",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.149",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.1.*",
                  "status": "unaffected",
                  "version": "6.1.76",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.15",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.7.*",
                  "status": "unaffected",
                  "version": "6.7.3",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.8",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.149",
                      "versionStartIncluding": "5.15",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.1.76",
                      "versionStartIncluding": "5.15",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.6.15",
                      "versionStartIncluding": "5.15",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.7.3",
                      "versionStartIncluding": "5.15",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.8",
                      "versionStartIncluding": "5.15",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix global oob in ksmbd_nl_policy\n\nSimilar to a reported issue (check the commit b33fb5b801c6 (\"net:\nqualcomm: rmnet: fix global oob in rmnet_policy\"), my local fuzzer finds\nanother global out-of-bounds read for policy ksmbd_nl_policy. See bug\ntrace below:\n\n==================================================================\nBUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline]\nBUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600\nRead of size 1 at addr ffffffff8f24b100 by task syz-executor.1/62810\n\nCPU: 0 PID: 62810 Comm: syz-executor.1 Tainted: G                 N 6.1.0 #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:284 [inline]\n print_report+0x172/0x475 mm/kasan/report.c:395\n kasan_report+0xbb/0x1c0 mm/kasan/report.c:495\n validate_nla lib/nlattr.c:386 [inline]\n __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600\n __nla_parse+0x3e/0x50 lib/nlattr.c:697\n __nlmsg_parse include/net/netlink.h:748 [inline]\n genl_family_rcv_msg_attrs_parse.constprop.0+0x1b0/0x290 net/netlink/genetlink.c:565\n genl_family_rcv_msg_doit+0xda/0x330 net/netlink/genetlink.c:734\n genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]\n genl_rcv_msg+0x441/0x780 net/netlink/genetlink.c:850\n netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540\n genl_rcv+0x24/0x40 net/netlink/genetlink.c:861\n netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]\n netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345\n netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921\n sock_sendmsg_nosec net/socket.c:714 [inline]\n sock_sendmsg+0x154/0x190 net/socket.c:734\n ____sys_sendmsg+0x6df/0x840 net/socket.c:2482\n ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536\n __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\nRIP: 0033:0x7fdd66a8f359\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fdd65e00168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007fdd66bbcf80 RCX: 00007fdd66a8f359\nRDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000003\nRBP: 00007fdd66ada493 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007ffc84b81aff R14: 00007fdd65e00300 R15: 0000000000022000\n \u003c/TASK\u003e\n\nThe buggy address belongs to the variable:\n ksmbd_nl_policy+0x100/0xa80\n\nThe buggy address belongs to the physical page:\npage:0000000034f47940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1ccc4b\nflags: 0x200000000001000(reserved|node=0|zone=2)\nraw: 0200000000001000 ffffea00073312c8 ffffea00073312c8 0000000000000000\nraw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\n\nMemory state around the buggy address:\n ffffffff8f24b000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n ffffffff8f24b080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n\u003effffffff8f24b100: f9 f9 f9 f9 00 00 f9 f9 f9 f9 f9 f9 00 00 07 f9\n                   ^\n ffffffff8f24b180: f9 f9 f9 f9 00 05 f9 f9 f9 f9 f9 f9 00 00 00 05\n ffffffff8f24b200: f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9 00 00 04 f9\n==================================================================\n\nTo fix it, add a placeholder named __KSMBD_EVENT_MAX and let\nKSMBD_EVENT_MAX to be its original value - 1 according to what other\nnetlink families do. Also change two sites that refer the\nKSMBD_EVENT_MAX to correct value."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "scenarios": [
                {
                  "lang": "en",
                  "value": "AV:L - The bug is triggered by a crafted generic-netlink message sent with sendmsg() on an AF_NETLINK socket to the \"ksmbd_events\" family, which requires local access; it is not reachable from an SMB client on TCP/445.\nAC:L - A single netlink message containing an attribute with nla_type == 16 deterministically drives validate_nla() past the end of ksmbd_nl_policy[]; no race, timing, or memory-layout condition outside the attacker\u0027s control is involved.\nPR:L - Any unprivileged local user can open a NETLINK_GENERIC socket; the ksmbd genl ops carry no GENL_ADMIN_PERM flag, and the CONFIG_SMB_SERVER_CHECK_CAP_NET_ADMIN check sits inside the doit handlers, which run after the out-of-bounds policy parse. It is also reachable from an unprivileged user+net namespace since the family sets .netnsok = true.\nUI:N - The attacker triggers the bug entirely from their own process via a single sendmsg(); no victim action or interaction is required.\nS:U - The out-of-bounds access and its consequences are confined to the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The out-of-bounds nla_policy entry can select NLA_REJECT, causing extack-\u003e_msg to be set from an out-of-bounds pointer whose string is then copied to userspace via NLMSGERR_ATTR_MSG, or NLA_NESTED, causing recursive parsing through an out-of-bounds nested_policy pointer \u2014 both amount to a kernel-memory read primitive.\nI:H - If the out-of-bounds entry\u0027s validation_type is NLA_VALIDATE_FUNCTION, validate_nla() performs an indirect call through the out-of-bounds pt-\u003evalidate pointer, giving control-flow influence rather than a mere read.\nA:H - validate_nla() executes BUG_ON(pt-\u003etype \u003e NLA_TYPE_MAX) on the out-of-bounds entry, so any adjacent .rodata byte above 20 causes an immediate kernel BUG/oops (and an outright panic on KASAN or panic_on_oops kernels), repeatedly triggerable by an unprivileged user."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-05T11:26:12.946Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/aaa1f1a2ee80888c12ae2783f3a0be10e14067c5"
            },
            {
              "url": "https://git.kernel.org/stable/c/2c939c74ef0b74e99b92e32edc2a59f9b9ca3d5a"
            },
            {
              "url": "https://git.kernel.org/stable/c/9863a53100f47652755545c2bd43e14a1855104d"
            },
            {
              "url": "https://git.kernel.org/stable/c/6993328a4cd62a24df254b587c0796a4a1eecc95"
            },
            {
              "url": "https://git.kernel.org/stable/c/ebeae8adf89d9a82359f6659b1663d09beec2faa"
            }
          ],
          "title": "ksmbd: fix global oob in ksmbd_nl_policy",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-26608",
        "datePublished": "2024-02-29T15:52:14.626Z",
        "dateReserved": "2024-02-19T14:20:24.130Z",
        "dateUpdated": "2026-08-05T11:26:12.946Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.