CVE-2026-72419 (GCVE-0-2026-72419)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:56 – Updated: 2026-08-17 05:43
VLAI
Title
netfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init()
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init() We ran into below KASAN splat, which is mostly uninteresting, beside for having nf_nat_register_fn() in the call chain as a cause for the offending access: ================================================================== BUG: KASAN: slab-out-of-bounds in nf_nat_register_fn+0x5f9/0x640 Read of size 8 at addr ffff890031e54c20 by task iptables/9510 CPU: 0 UID: 0 PID: 9510 Comm: iptables Not tainted 6.18.18-grsec-full-20260320181326 #1 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: <TASK> […] dump_stack_lvl+0xee/0x160 ffff88004117eeb8 […] print_report+0x6e/0x640 ffff88004117eee0 […] ? __phys_addr+0x8e/0x140 ffff88004117eef0 […] ? kasan_addr_to_slab+0x51/0xe0 ffff88004117ef08 […] ? complete_report_info+0xec/0x1c0 ffff88004117ef20 […] ? nf_nat_register_fn+0x5f9/0x640 ffff88004117ef48 […] kasan_report+0xbc/0x140 ffff88004117ef50 […] ? nf_nat_register_fn+0x5f9/0x640 ffff88004117ef90 […] nf_nat_register_fn+0x5f9/0x640 ffff88004117eff8 […] ? nf_nat_icmp_reply_translation+0x6e0/0x6e0 ffff88004117f070 […] nf_tables_register_hook.part.0+0xa0/0x220 ffff88004117f080 […] nf_tables_addchain.constprop.0+0x1054/0x1fc0 ffff88004117f0b8 […] ? nft_chain_lookup.part.0+0x4ce/0xac0 ffff88004117f130 […] ? nf_tables_abort+0x3d80/0x3d80 ffff88004117f190 […] ? nf_tables_dumpreset_obj+0x100/0x100 ffff88004117f1c8 […] ? nft_table_lookup.part.0+0x255/0x300 ffff88004117f310 […] ? nf_tables_newchain+0x21a4/0x2fa0 ffff88004117f358 […] nf_tables_newchain+0x21a4/0x2fa0 ffff88004117f360 […] ? nf_tables_addchain.constprop.0+0x1fc0/0x1fc0 ffff88004117f458 […] ? nla_get_range_signed+0x4a0/0x4a0 ffff88004117f488 […] ? lock_acquire+0x16f/0x320 ffff88004117f490 […] ? find_held_lock+0x3b/0xe0 ffff88004117f4b0 […] ? __nla_parse+0x45/0x80 ffff88004117f500 […] nfnetlink_rcv_batch+0xbca/0x19a0 ffff88004117f550 […] ? nfnetlink_net_exit_batch+0x120/0x120 ffff88004117f618 […] ? __sanitizer_cov_trace_switch+0x63/0xe0 ffff88004117f720 […] ? gr_acl_handle_mmap+0x1c4/0x320 ffff88004117f7c0 […] ? nla_get_range_signed+0x4a0/0x4a0 ffff88004117f7e8 […] ? gr_is_capable+0x6f/0xe0 ffff88004117f830 […] ? __nla_parse+0x45/0x80 ffff88004117f860 […] ? skb_pull+0x103/0x1a0 ffff88004117f880 […] nfnetlink_rcv+0x3db/0x4a0 ffff88004117f8b0 […] ? nfnetlink_rcv_batch+0x19a0/0x19a0 ffff88004117f8d8 […] ? netlink_lookup+0xe2/0x240 ffff88004117f900 […] netlink_unicast+0x74b/0xb00 ffff88004117f930 […] ? netlink_attachskb+0xb20/0xb20 ffff88004117f980 […] ? __check_object_size+0x3e/0xaa0 ffff88004117f998 […] ? security_netlink_send+0x51/0x160 ffff88004117f9c8 […] netlink_sendmsg+0xa03/0x1200 ffff88004117f9f8 […] ? netlink_unicast+0xb00/0xb00 ffff88004117fa70 […] ? netlink_unicast+0xb00/0xb00 ffff88004117fac8 […] ? ____sys_sendmsg+0xe2a/0x1040 ffff88004117faf8 […] ____sys_sendmsg+0xe2a/0x1040 ffff88004117fb00 […] ? kernel_recvmsg+0x300/0x300 ffff88004117fb60 […] ? reacquire_held_locks+0xe9/0x260 ffff88004117fbc8 […] ___sys_sendmsg+0x138/0x200 ffff88004117fbf8 […] ? do_recvmmsg+0x7e0/0x7e0 ffff88004117fc30 […] ? lockdep_hardirqs_on_prepare+0x101/0x1e0 ffff88004117fc50 […] ? lock_acquire+0x16f/0x320 ffff88004117fd20 […] ? lock_acquire+0x16f/0x320 ffff88004117fd58 […] ? find_held_lock+0x3b/0xe0 ffff88004117fd70 […] __sys_sendmsg+0x17a/0x260 ffff88004117fdc8 […] ? __sys_sendmsg_sock+0x80/0x80 ffff88004117fdf0 […] ? syscall_trace_enter+0x15e/0x2c0 ffff88004117fe98 […] do_syscall_64+0x7d/0x400 ffff88004117fec8 […] entry_SYSCALL_64_safe_stack+0x4a/0x60 ffff88004117fef8 </TASK> ================================================================== The out-of-bounds report, though, is a red herring as it is f ---truncated---
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: cbc1dd5b659f5a2c3cba88b197b7443679bb35a0 , < 359d8ff97362a4662356104540e4814bff9dad7c (git)
Affected: cbc1dd5b659f5a2c3cba88b197b7443679bb35a0 , < 87f7a720de2545fdac29c85acb7163676feacdaf (git)
Affected: cbc1dd5b659f5a2c3cba88b197b7443679bb35a0 , < e794f633021defcfa98e17d73b955cd07590831f (git)
Affected: cbc1dd5b659f5a2c3cba88b197b7443679bb35a0 , < a73e7ac3f3b69e9581ec7bfd889ff3e9b8c773f7 (git)
Affected: cbc1dd5b659f5a2c3cba88b197b7443679bb35a0 , < eb14aba91163c33d8c99f9d7c06690e08b56a250 (git)
Affected: cbc1dd5b659f5a2c3cba88b197b7443679bb35a0 , < 069cfe3de2a5e16069485893cd04665ab769c1d8 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.1
Unaffected: 0 , < 6.1 (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nf_nat_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "359d8ff97362a4662356104540e4814bff9dad7c",
              "status": "affected",
              "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
              "versionType": "git"
            },
            {
              "lessThan": "87f7a720de2545fdac29c85acb7163676feacdaf",
              "status": "affected",
              "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
              "versionType": "git"
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            {
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              "status": "affected",
              "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
              "versionType": "git"
            },
            {
              "lessThan": "a73e7ac3f3b69e9581ec7bfd889ff3e9b8c773f7",
              "status": "affected",
              "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
              "versionType": "git"
            },
            {
              "lessThan": "eb14aba91163c33d8c99f9d7c06690e08b56a250",
              "status": "affected",
              "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
              "versionType": "git"
            },
            {
              "lessThan": "069cfe3de2a5e16069485893cd04665ab769c1d8",
              "status": "affected",
              "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/netfilter/nf_nat_core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init()\n\nWe ran into below KASAN splat, which is mostly uninteresting, beside\nfor having nf_nat_register_fn() in the call chain as a cause for the\noffending access:\n\n==================================================================\nBUG: KASAN: slab-out-of-bounds in nf_nat_register_fn+0x5f9/0x640\nRead of size 8 at addr ffff890031e54c20 by task iptables/9510\n\nCPU: 0 UID: 0 PID: 9510 Comm: iptables Not tainted 6.18.18-grsec-full-20260320181326 #1 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n [\u2026] dump_stack_lvl+0xee/0x160 ffff88004117eeb8\n [\u2026] print_report+0x6e/0x640 ffff88004117eee0\n [\u2026] ? __phys_addr+0x8e/0x140 ffff88004117eef0\n [\u2026] ? kasan_addr_to_slab+0x51/0xe0 ffff88004117ef08\n [\u2026] ? complete_report_info+0xec/0x1c0 ffff88004117ef20\n [\u2026] ? nf_nat_register_fn+0x5f9/0x640 ffff88004117ef48\n [\u2026] kasan_report+0xbc/0x140 ffff88004117ef50\n [\u2026] ? nf_nat_register_fn+0x5f9/0x640 ffff88004117ef90\n [\u2026] nf_nat_register_fn+0x5f9/0x640 ffff88004117eff8\n [\u2026] ? nf_nat_icmp_reply_translation+0x6e0/0x6e0 ffff88004117f070\n [\u2026] nf_tables_register_hook.part.0+0xa0/0x220 ffff88004117f080\n [\u2026] nf_tables_addchain.constprop.0+0x1054/0x1fc0 ffff88004117f0b8\n [\u2026] ? nft_chain_lookup.part.0+0x4ce/0xac0 ffff88004117f130\n [\u2026] ? nf_tables_abort+0x3d80/0x3d80 ffff88004117f190\n [\u2026] ? nf_tables_dumpreset_obj+0x100/0x100 ffff88004117f1c8\n [\u2026] ? nft_table_lookup.part.0+0x255/0x300 ffff88004117f310\n [\u2026] ? nf_tables_newchain+0x21a4/0x2fa0 ffff88004117f358\n [\u2026] nf_tables_newchain+0x21a4/0x2fa0 ffff88004117f360\n [\u2026] ? nf_tables_addchain.constprop.0+0x1fc0/0x1fc0 ffff88004117f458\n [\u2026] ? nla_get_range_signed+0x4a0/0x4a0 ffff88004117f488\n [\u2026] ? lock_acquire+0x16f/0x320 ffff88004117f490\n [\u2026] ? find_held_lock+0x3b/0xe0 ffff88004117f4b0\n [\u2026] ? __nla_parse+0x45/0x80 ffff88004117f500\n [\u2026] nfnetlink_rcv_batch+0xbca/0x19a0 ffff88004117f550\n [\u2026] ? nfnetlink_net_exit_batch+0x120/0x120 ffff88004117f618\n [\u2026] ? __sanitizer_cov_trace_switch+0x63/0xe0 ffff88004117f720\n [\u2026] ? gr_acl_handle_mmap+0x1c4/0x320 ffff88004117f7c0\n [\u2026] ? nla_get_range_signed+0x4a0/0x4a0 ffff88004117f7e8\n [\u2026] ? gr_is_capable+0x6f/0xe0 ffff88004117f830\n [\u2026] ? __nla_parse+0x45/0x80 ffff88004117f860\n [\u2026] ? skb_pull+0x103/0x1a0 ffff88004117f880\n [\u2026] nfnetlink_rcv+0x3db/0x4a0 ffff88004117f8b0\n [\u2026] ? nfnetlink_rcv_batch+0x19a0/0x19a0 ffff88004117f8d8\n [\u2026] ? netlink_lookup+0xe2/0x240 ffff88004117f900\n [\u2026] netlink_unicast+0x74b/0xb00 ffff88004117f930\n [\u2026] ? netlink_attachskb+0xb20/0xb20 ffff88004117f980\n [\u2026] ? __check_object_size+0x3e/0xaa0 ffff88004117f998\n [\u2026] ? security_netlink_send+0x51/0x160 ffff88004117f9c8\n [\u2026] netlink_sendmsg+0xa03/0x1200 ffff88004117f9f8\n [\u2026] ? netlink_unicast+0xb00/0xb00 ffff88004117fa70\n [\u2026] ? netlink_unicast+0xb00/0xb00 ffff88004117fac8\n [\u2026] ? ____sys_sendmsg+0xe2a/0x1040 ffff88004117faf8\n [\u2026] ____sys_sendmsg+0xe2a/0x1040 ffff88004117fb00\n [\u2026] ? kernel_recvmsg+0x300/0x300 ffff88004117fb60\n [\u2026] ? reacquire_held_locks+0xe9/0x260 ffff88004117fbc8\n [\u2026] ___sys_sendmsg+0x138/0x200 ffff88004117fbf8\n [\u2026] ? do_recvmmsg+0x7e0/0x7e0 ffff88004117fc30\n [\u2026] ? lockdep_hardirqs_on_prepare+0x101/0x1e0 ffff88004117fc50\n [\u2026] ? lock_acquire+0x16f/0x320 ffff88004117fd20\n [\u2026] ? lock_acquire+0x16f/0x320 ffff88004117fd58\n [\u2026] ? find_held_lock+0x3b/0xe0 ffff88004117fd70\n [\u2026] __sys_sendmsg+0x17a/0x260 ffff88004117fdc8\n [\u2026] ? __sys_sendmsg_sock+0x80/0x80 ffff88004117fdf0\n [\u2026] ? syscall_trace_enter+0x15e/0x2c0 ffff88004117fe98\n [\u2026] do_syscall_64+0x7d/0x400 ffff88004117fec8\n [\u2026] entry_SYSCALL_64_safe_stack+0x4a/0x60 ffff88004117fef8\n \u003c/TASK\u003e\n==================================================================\n\nThe out-of-bounds report, though, is a red herring as it is f\n---truncated---"
        }
      ],
      "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 reached via the netfilter netlink path (sendmsg on NETLINK_NETFILTER) when creating an nftables NAT chain; nf_tables_newchain -\u003e nf_tables_register_hook -\u003e nf_nat_register_fn. This is a local syscall/configuration interface, not remote packet handling.\nAC:L - Once nf_nat built-in init has failed and another per-net consumer reuses the stale nat_net_id, a CAP_NET_ADMIN caller can deterministically trigger the type confusion by adding/removing a NAT chain; no race, memory-layout gamble, or victim interaction is required.\nPR:L - nfnetlink_rcv requires CAP_NET_ADMIN via netlink_net_capable(); on systems with user namespaces this capability is available to an unprivileged local user (e.g. unshare -Urn), not only init-namespace root.\nUI:N - Exploitation is performed entirely by the attacker configuring nftables NAT chains over netlink; no action by another user or administrator is required beyond the attacker\u2019s own netfilter setup.\nS:U - Impact is kernel memory corruption and privilege escalation within the same host/kernel security domain; it does not cross a VM, container-to-host, or IOMMU boundary by itself.\nC:H - Stale nat_net_id makes net_generic() return a synproxy_net (24 bytes) misinterpreted as nat_net (176 bytes), causing slab out-of-bounds reads; KASAN confirmed an 8-byte OOB read and type confusion can expose adjacent per-net/kernel heap data.\nI:H - nf_nat_register_fn()/unregister_fn() write nat_hook_ops pointers, user counters, and hook entry tables through the mis-typed smaller structure, corrupting adjacent per-net memory and enabling further arbitrary write/control-flow hijack primitives.\nA:H - The mis-typed per-net access triggers KASAN slab-out-of-bounds faults and can kernel oops/panic during NAT hook registration; corrupted synproxy/per-net state can also crash or hang the system on subsequent netfilter activity."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:43:59.432Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/359d8ff97362a4662356104540e4814bff9dad7c"
        },
        {
          "url": "https://git.kernel.org/stable/c/87f7a720de2545fdac29c85acb7163676feacdaf"
        },
        {
          "url": "https://git.kernel.org/stable/c/e794f633021defcfa98e17d73b955cd07590831f"
        },
        {
          "url": "https://git.kernel.org/stable/c/a73e7ac3f3b69e9581ec7bfd889ff3e9b8c773f7"
        },
        {
          "url": "https://git.kernel.org/stable/c/eb14aba91163c33d8c99f9d7c06690e08b56a250"
        },
        {
          "url": "https://git.kernel.org/stable/c/069cfe3de2a5e16069485893cd04665ab769c1d8"
        }
      ],
      "title": "netfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72419",
    "datePublished": "2026-08-15T05:56:39.126Z",
    "dateReserved": "2026-08-09T03:40:39.927Z",
    "dateUpdated": "2026-08-17T05:43:59.432Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-72419",
      "date": "2026-09-21",
      "epss": "0.00164",
      "percentile": "0.06052"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "net/netfilter/nf_nat_core.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "359d8ff97362a4662356104540e4814bff9dad7c",
                    "status": "affected",
                    "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "87f7a720de2545fdac29c85acb7163676feacdaf",
                    "status": "affected",
                    "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "e794f633021defcfa98e17d73b955cd07590831f",
                    "status": "affected",
                    "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "a73e7ac3f3b69e9581ec7bfd889ff3e9b8c773f7",
                    "status": "affected",
                    "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "eb14aba91163c33d8c99f9d7c06690e08b56a250",
                    "status": "affected",
                    "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "069cfe3de2a5e16069485893cd04665ab769c1d8",
                    "status": "affected",
                    "version": "cbc1dd5b659f5a2c3cba88b197b7443679bb35a0",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "net/netfilter/nf_nat_core.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.1"
                  },
                  {
                    "lessThan": "6.1",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.178",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.145",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.97",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.40",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.1.*",
                    "status": "unaffected",
                    "version": "7.1.5",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "7.2",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init()\n\nWe ran into below KASAN splat, which is mostly uninteresting, beside\nfor having nf_nat_register_fn() in the call chain as a cause for the\noffending access:\n\n==================================================================\nBUG: KASAN: slab-out-of-bounds in nf_nat_register_fn+0x5f9/0x640\nRead of size 8 at addr ffff890031e54c20 by task iptables/9510\n\nCPU: 0 UID: 0 PID: 9510 Comm: iptables Not tainted 6.18.18-grsec-full-20260320181326 #1 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n [\u2026] dump_stack_lvl+0xee/0x160 ffff88004117eeb8\n [\u2026] print_report+0x6e/0x640 ffff88004117eee0\n [\u2026] ? __phys_addr+0x8e/0x140 ffff88004117eef0\n [\u2026] ? kasan_addr_to_slab+0x51/0xe0 ffff88004117ef08\n [\u2026] ? complete_report_info+0xec/0x1c0 ffff88004117ef20\n [\u2026] ? nf_nat_register_fn+0x5f9/0x640 ffff88004117ef48\n [\u2026] kasan_report+0xbc/0x140 ffff88004117ef50\n [\u2026] ? nf_nat_register_fn+0x5f9/0x640 ffff88004117ef90\n [\u2026] nf_nat_register_fn+0x5f9/0x640 ffff88004117eff8\n [\u2026] ? nf_nat_icmp_reply_translation+0x6e0/0x6e0 ffff88004117f070\n [\u2026] nf_tables_register_hook.part.0+0xa0/0x220 ffff88004117f080\n [\u2026] nf_tables_addchain.constprop.0+0x1054/0x1fc0 ffff88004117f0b8\n [\u2026] ? nft_chain_lookup.part.0+0x4ce/0xac0 ffff88004117f130\n [\u2026] ? nf_tables_abort+0x3d80/0x3d80 ffff88004117f190\n [\u2026] ? nf_tables_dumpreset_obj+0x100/0x100 ffff88004117f1c8\n [\u2026] ? nft_table_lookup.part.0+0x255/0x300 ffff88004117f310\n [\u2026] ? nf_tables_newchain+0x21a4/0x2fa0 ffff88004117f358\n [\u2026] nf_tables_newchain+0x21a4/0x2fa0 ffff88004117f360\n [\u2026] ? nf_tables_addchain.constprop.0+0x1fc0/0x1fc0 ffff88004117f458\n [\u2026] ? nla_get_range_signed+0x4a0/0x4a0 ffff88004117f488\n [\u2026] ? lock_acquire+0x16f/0x320 ffff88004117f490\n [\u2026] ? find_held_lock+0x3b/0xe0 ffff88004117f4b0\n [\u2026] ? __nla_parse+0x45/0x80 ffff88004117f500\n [\u2026] nfnetlink_rcv_batch+0xbca/0x19a0 ffff88004117f550\n [\u2026] ? nfnetlink_net_exit_batch+0x120/0x120 ffff88004117f618\n [\u2026] ? __sanitizer_cov_trace_switch+0x63/0xe0 ffff88004117f720\n [\u2026] ? gr_acl_handle_mmap+0x1c4/0x320 ffff88004117f7c0\n [\u2026] ? nla_get_range_signed+0x4a0/0x4a0 ffff88004117f7e8\n [\u2026] ? gr_is_capable+0x6f/0xe0 ffff88004117f830\n [\u2026] ? __nla_parse+0x45/0x80 ffff88004117f860\n [\u2026] ? skb_pull+0x103/0x1a0 ffff88004117f880\n [\u2026] nfnetlink_rcv+0x3db/0x4a0 ffff88004117f8b0\n [\u2026] ? nfnetlink_rcv_batch+0x19a0/0x19a0 ffff88004117f8d8\n [\u2026] ? netlink_lookup+0xe2/0x240 ffff88004117f900\n [\u2026] netlink_unicast+0x74b/0xb00 ffff88004117f930\n [\u2026] ? netlink_attachskb+0xb20/0xb20 ffff88004117f980\n [\u2026] ? __check_object_size+0x3e/0xaa0 ffff88004117f998\n [\u2026] ? security_netlink_send+0x51/0x160 ffff88004117f9c8\n [\u2026] netlink_sendmsg+0xa03/0x1200 ffff88004117f9f8\n [\u2026] ? netlink_unicast+0xb00/0xb00 ffff88004117fa70\n [\u2026] ? netlink_unicast+0xb00/0xb00 ffff88004117fac8\n [\u2026] ? ____sys_sendmsg+0xe2a/0x1040 ffff88004117faf8\n [\u2026] ____sys_sendmsg+0xe2a/0x1040 ffff88004117fb00\n [\u2026] ? kernel_recvmsg+0x300/0x300 ffff88004117fb60\n [\u2026] ? reacquire_held_locks+0xe9/0x260 ffff88004117fbc8\n [\u2026] ___sys_sendmsg+0x138/0x200 ffff88004117fbf8\n [\u2026] ? do_recvmmsg+0x7e0/0x7e0 ffff88004117fc30\n [\u2026] ? lockdep_hardirqs_on_prepare+0x101/0x1e0 ffff88004117fc50\n [\u2026] ? lock_acquire+0x16f/0x320 ffff88004117fd20\n [\u2026] ? lock_acquire+0x16f/0x320 ffff88004117fd58\n [\u2026] ? find_held_lock+0x3b/0xe0 ffff88004117fd70\n [\u2026] __sys_sendmsg+0x17a/0x260 ffff88004117fdc8\n [\u2026] ? __sys_sendmsg_sock+0x80/0x80 ffff88004117fdf0\n [\u2026] ? syscall_trace_enter+0x15e/0x2c0 ffff88004117fe98\n [\u2026] do_syscall_64+0x7d/0x400 ffff88004117fec8\n [\u2026] entry_SYSCALL_64_safe_stack+0x4a/0x60 ffff88004117fef8\n \u003c/TASK\u003e\n==================================================================\n\nThe out-of-bounds report, though, is a red herring as it is f\n---truncated---"
          }
        ],
        "id": "CVE-2026-72419",
        "lastModified": "2026-08-17T06:19:08.897",
        "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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-08-15T06:22:15.573",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/069cfe3de2a5e16069485893cd04665ab769c1d8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/359d8ff97362a4662356104540e4814bff9dad7c"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/87f7a720de2545fdac29c85acb7163676feacdaf"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/a73e7ac3f3b69e9581ec7bfd889ff3e9b8c773f7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/e794f633021defcfa98e17d73b955cd07590831f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/eb14aba91163c33d8c99f9d7c06690e08b56a250"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-18T12:43:30+00:00",
      "cve": "CVE-2026-72419",
      "id": "CVE-2026-72419",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: nf_nat: avoid invalid nat_net pointer use on failed nf_nat_init()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72419.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T11:45:56Z",
      "cve": "CVE-2026-72419",
      "id": "CVE-2026-72419",
      "initial_release_date": "2026-09-02T11:45:56Z",
      "product_status:known_affected": "73",
      "product_status:known_not_affected": "285",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-72419",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-72419.json",
      "version": "2"
    }
  }
}



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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.