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CVE-2024-49952 (GCVE-0-2024-49952)

Vulnerability from cvelistv5 – Published: 2024-10-21 18:02 – Updated: 2026-08-05 11:40
VLAI
Title
netfilter: nf_tables: prevent nf_skb_duplicated corruption
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: prevent nf_skb_duplicated corruption syzbot found that nf_dup_ipv4() or nf_dup_ipv6() could write per-cpu variable nf_skb_duplicated in an unsafe way [1]. Disabling preemption as hinted by the splat is not enough, we have to disable soft interrupts as well. [1] BUG: using __this_cpu_write() in preemptible [00000000] code: syz.4.282/6316 caller is nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87 CPU: 0 UID: 0 PID: 6316 Comm: syz.4.282 Not tainted 6.11.0-rc7-syzkaller-00104-g7052622fccb1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49 nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87 nft_dup_ipv4_eval+0x1db/0x300 net/ipv4/netfilter/nft_dup_ipv4.c:30 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline] nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook+0x2c4/0x450 include/linux/netfilter.h:269 NF_HOOK_COND include/linux/netfilter.h:302 [inline] ip_output+0x185/0x230 net/ipv4/ip_output.c:433 ip_local_out net/ipv4/ip_output.c:129 [inline] ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1495 udp_send_skb+0xacf/0x1650 net/ipv4/udp.c:981 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1269 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737 __do_sys_sendmmsg net/socket.c:2766 [inline] __se_sys_sendmmsg net/socket.c:2763 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4ce4f7def9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4ce5d4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f4ce5135f80 RCX: 00007f4ce4f7def9 RDX: 0000000000000001 RSI: 0000000020005d40 RDI: 0000000000000006 RBP: 00007f4ce4ff0b76 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4ce5135f80 R15: 00007ffd4cbc6d68 </TASK>
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: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-22 13:36 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < 50067d8b3f48e4cd4c9e817d3e9a5b5ff3507ca7 (git)
Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < c0add6ed2cf1c4733cd489efc61faeccd3433b41 (git)
Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < 531754952f5dfc4b141523088147071d6e6112c4 (git)
Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < 38e3fd0c4a2616052eb3c8f4e6f32d1ff47cd663 (git)
Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < b40b027a0c0cc1cb9471a13f9730bb2fff12a15b (git)
Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < 4e3542f40f3a94efa59ea328e307c50601ed7065 (git)
Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < f839c5cd348201fec440d987cbca9b979bdb4fa7 (git)
Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < 752e1924604254f1708f3e3700283a86ebdd325d (git)
Affected: d877f07112f1e5a247c6b585c971a93895c9f738 , < 92ceba94de6fb4cee2bf40b485979c342f44a492 (git)
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Linux Linux Affected: 4.3
Unaffected: 0 , < 4.3 (semver)
Unaffected: 4.19.323 , ≤ 4.19.* (semver)
Unaffected: 5.4.285 , ≤ 5.4.* (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.168 , ≤ 5.15.* (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.55 , ≤ 6.6.* (semver)
Unaffected: 6.10.14 , ≤ 6.10.* (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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Siemens RUGGEDCOM RST2428P Affected: 0 , < V3.2 (custom)
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Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Affected: 0 , < V3.2 (custom)
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Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 family Affected: 0 , < V3.2 (custom)
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Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.0 , < V3.1.5 (custom)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: prevent nf_skb_duplicated corruption\n\nsyzbot found that nf_dup_ipv4() or nf_dup_ipv6() could write\nper-cpu variable nf_skb_duplicated in an unsafe way [1].\n\nDisabling preemption as hinted by the splat is not enough,\nwe have to disable soft interrupts as well.\n\n[1]\nBUG: using __this_cpu_write() in preemptible [00000000] code: syz.4.282/6316\n caller is nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\nCPU: 0 UID: 0 PID: 6316 Comm: syz.4.282 Not tainted 6.11.0-rc7-syzkaller-00104-g7052622fccb1 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nCall Trace:\n \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:93 [inline]\n  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\n  check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49\n  nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\n  nft_dup_ipv4_eval+0x1db/0x300 net/ipv4/netfilter/nft_dup_ipv4.c:30\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\n  nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288\n  nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626\n  nf_hook+0x2c4/0x450 include/linux/netfilter.h:269\n  NF_HOOK_COND include/linux/netfilter.h:302 [inline]\n  ip_output+0x185/0x230 net/ipv4/ip_output.c:433\n  ip_local_out net/ipv4/ip_output.c:129 [inline]\n  ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1495\n  udp_send_skb+0xacf/0x1650 net/ipv4/udp.c:981\n  udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1269\n  sock_sendmsg_nosec net/socket.c:730 [inline]\n  __sock_sendmsg+0x1a6/0x270 net/socket.c:745\n  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\n  ___sys_sendmsg net/socket.c:2651 [inline]\n  __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737\n  __do_sys_sendmmsg net/socket.c:2766 [inline]\n  __se_sys_sendmmsg net/socket.c:2763 [inline]\n  __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f4ce4f7def9\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f4ce5d4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133\nRAX: ffffffffffffffda RBX: 00007f4ce5135f80 RCX: 00007f4ce4f7def9\nRDX: 0000000000000001 RSI: 0000000020005d40 RDI: 0000000000000006\nRBP: 00007f4ce4ff0b76 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 0000000000000000 R14: 00007f4ce5135f80 R15: 00007ffd4cbc6d68\n \u003c/TASK\u003e"
        }
      ],
      "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 vulnerable code is reached by configuring an nftables `dup` rule over netfilter netlink and then sending packets from a local socket (`sendmmsg` \u2192 `ip_output` \u2192 `nft_do_chain` \u2192 `nf_dup_ipv4`); no remote peer can reach the preemptible-context variant of this path.\nAC:L - The attacker controls both sides of the race \u2014 process-context `nf_dup` calls via a thread pool flooding `sendmmsg` with `sched_setaffinity` churn to force migration between the two `__this_cpu_write()` calls, plus concurrent softirq-context `nf_dup` calls from received/looped packets \u2014 and can retry indefinitely with no condition outside their influence.\nPR:L - Reaching the code needs CAP_NET_ADMIN over a network namespace, which any unprivileged user obtains with `unshare -Urn` since nfnetlink gates on `netlink_net_capable(skb, CAP_NET_ADMIN)` and `ip_tables` on `ns_capable(sock_net(sk)-\u003euser_ns, ...)`; `__request_module()` autoloads `nft_dup_ipv4` with no capability check.\nUI:N - The attacker installs the nftables rule and generates the traffic entirely on their own; no victim action or interaction is involved.\nS:U - The corrupted state and its consequences are confined to the kernel\u0027s own security authority; this is a standard in-kernel bug with no VM, IOMMU, or hypervisor boundary crossing.\nC:H - Defeating the recursion guard permits nested re-entry into `ip_local_out`/`nft_do_chain`, and sufficiently deep recursion overflows the 16 KB kernel stack \u2014 on configurations without `CONFIG_VMAP_STACK` (common on embedded/32-bit deployments) this reads and writes adjacent kernel memory, which is leverageable for kernel memory disclosure.\nI:H - The unsynchronized per-CPU write corrupts global, cross-namespace kernel state: an unprivileged container can permanently pin a CPU\u0027s guard to `true`, silently disabling `dup`/`TEE` packet mirroring for the host\u0027s own IDS/monitoring rules, and the reverse corruption defeats the recursion invariant leading to stack overflow into adjacent kernel memory.\nA:H - A defeated recursion guard allows the duplicated skb to be duplicated again on each nesting level, driving unbounded packet amplification and kernel stack exhaustion that ends in a guard-page oops/panic; on `CONFIG_DEBUG_PREEMPT` kernels the same path emits the `BUG:` splat, which panics under `panic_on_warn`."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:40:39.691Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/50067d8b3f48e4cd4c9e817d3e9a5b5ff3507ca7"
        },
        {
          "url": "https://git.kernel.org/stable/c/c0add6ed2cf1c4733cd489efc61faeccd3433b41"
        },
        {
          "url": "https://git.kernel.org/stable/c/531754952f5dfc4b141523088147071d6e6112c4"
        },
        {
          "url": "https://git.kernel.org/stable/c/38e3fd0c4a2616052eb3c8f4e6f32d1ff47cd663"
        },
        {
          "url": "https://git.kernel.org/stable/c/b40b027a0c0cc1cb9471a13f9730bb2fff12a15b"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e3542f40f3a94efa59ea328e307c50601ed7065"
        },
        {
          "url": "https://git.kernel.org/stable/c/f839c5cd348201fec440d987cbca9b979bdb4fa7"
        },
        {
          "url": "https://git.kernel.org/stable/c/752e1924604254f1708f3e3700283a86ebdd325d"
        },
        {
          "url": "https://git.kernel.org/stable/c/92ceba94de6fb4cee2bf40b485979c342f44a492"
        }
      ],
      "title": "netfilter: nf_tables: prevent nf_skb_duplicated corruption",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-49952",
    "datePublished": "2024-10-21T18:02:07.718Z",
    "dateReserved": "2024-10-21T12:17:06.047Z",
    "dateUpdated": "2026-08-05T11:40:39.691Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-49952",
      "date": "2026-09-17",
      "epss": "0.00287",
      "percentile": "0.21374"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.3\", \"versionEndExcluding\": \"4.19.323\", \"matchCriteriaId\": \"DEAA99E9-44C6-4908-AE62-9763660B744F\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.20\", \"versionEndExcluding\": \"5.4.285\", \"matchCriteriaId\": \"B5A89369-320F-47FC-8695-56F61F87E4C0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.5\", \"versionEndExcluding\": \"5.10.227\", \"matchCriteriaId\": \"795A3EE6-0CAB-4409-A903-151C94ACECC0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.15.168\", \"matchCriteriaId\": \"4D51C05D-455B-4D8D-89E7-A58E140B864C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.16\", \"versionEndExcluding\": \"6.1.113\", \"matchCriteriaId\": \"D01BD22E-ACD1-4618-9D01-6116570BE1EE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.2\", \"versionEndExcluding\": \"6.6.55\", \"matchCriteriaId\": \"E90B9576-56C4-47BC-AAB0-C5B2D438F5D0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.7\", \"versionEndExcluding\": \"6.10.14\", \"matchCriteriaId\": \"4C16BCE0-FFA0-4599-BE0A-1FD65101C021\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.11\", \"versionEndExcluding\": \"6.11.3\", \"matchCriteriaId\": \"54D9C704-D679-41A7-9C40-10A6B1E7FFE9\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"7F361E1D-580F-4A2D-A509-7615F73167A1\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_tables: prevent nf_skb_duplicated corruption\\n\\nsyzbot found that nf_dup_ipv4() or nf_dup_ipv6() could write\\nper-cpu variable nf_skb_duplicated in an unsafe way [1].\\n\\nDisabling preemption as hinted by the splat is not enough,\\nwe have to disable soft interrupts as well.\\n\\n[1]\\nBUG: using __this_cpu_write() in preemptible [00000000] code: syz.4.282/6316\\n caller is nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\\nCPU: 0 UID: 0 PID: 6316 Comm: syz.4.282 Not tainted 6.11.0-rc7-syzkaller-00104-g7052622fccb1 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\\nCall Trace:\\n \u003cTASK\u003e\\n  __dump_stack lib/dump_stack.c:93 [inline]\\n  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\\n  check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49\\n  nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\\n  nft_dup_ipv4_eval+0x1db/0x300 net/ipv4/netfilter/nft_dup_ipv4.c:30\\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\\n  nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288\\n  nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23\\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\\n  nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626\\n  nf_hook+0x2c4/0x450 include/linux/netfilter.h:269\\n  NF_HOOK_COND include/linux/netfilter.h:302 [inline]\\n  ip_output+0x185/0x230 net/ipv4/ip_output.c:433\\n  ip_local_out net/ipv4/ip_output.c:129 [inline]\\n  ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1495\\n  udp_send_skb+0xacf/0x1650 net/ipv4/udp.c:981\\n  udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1269\\n  sock_sendmsg_nosec net/socket.c:730 [inline]\\n  __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\\n  ___sys_sendmsg net/socket.c:2651 [inline]\\n  __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737\\n  __do_sys_sendmmsg net/socket.c:2766 [inline]\\n  __se_sys_sendmmsg net/socket.c:2763 [inline]\\n  __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763\\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f4ce4f7def9\\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f4ce5d4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133\\nRAX: ffffffffffffffda RBX: 00007f4ce5135f80 RCX: 00007f4ce4f7def9\\nRDX: 0000000000000001 RSI: 0000000020005d40 RDI: 0000000000000006\\nRBP: 00007f4ce4ff0b76 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 0000000000000000 R14: 00007f4ce5135f80 R15: 00007ffd4cbc6d68\\n \u003c/TASK\u003e\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_tables: prevent nf_skb_duplicated democracy syzbot encontr\\u00f3 que nf_dup_ipv4() o nf_dup_ipv6() podr\\u00edan escribir la variable por CPU nf_skb_duplicated de una manera insegura [1]. Deshabilitar la preempci\\u00f3n como lo sugiere el splat no es suficiente, tambi\\u00e9n tenemos que deshabilitar las interrupciones suaves. [1] ERROR: uso de __this_cpu_write() en c\\u00f3digo preemptible [00000000]: syz.4.282/6316 el llamador es nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87 CPU: 0 UID: 0 PID: 6316 Comm: syz.4.282 No contaminado 6.11.0-rc7-syzkaller-00104-g7052622fccb1 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:93 [en l\\u00ednea] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49 nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87 nft_dup_ipv4_eval+0x1db/0x300 net/ipv4/netfilter/nft_dup_ipv4.c:30 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [en l\\u00ednea] nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23 nf_hook_entry_hookfn incluye/linux/netfilter.h:154 [en l\\u00ednea] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook+0x2c4/0x450 incluye/linux/netfilter.h:269 NF_HOOK_COND incluye/linux/netfilter.h:302 [en l\\u00ednea] ip_output+0x185/0x230 net/ipv4/ip_output.c:433 ip_local_out net/ipv4/ip_output.c:129 [en l\\u00ednea] ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1495 udp_send_skb+0xacf/0x1650 net/ipv4/udp.c:981 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1269 sock_sendmsg_nosec net/socket.c:730 [en l\\u00ednea] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [en l\\u00ednea] __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737 __do_sys_sendmmsg net/socket.c:2766 [en l\\u00ednea] __se_sys_sendmmsg net/socket.c:2763 [en l\\u00ednea] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763 do_syscall_x64 arch/x86/entry/common.c:52 [en l\\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4ce4f7def9 C\\u00f3digo: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4ce5d4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f4ce5135f80 RCX: 00007f4ce4f7def9 RDX: 00000000000000001 RSI: 0000000020005d40 RDI: 0000000000000006 RBP: 00007f4ce4ff0b76 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4ce5135f80 R15: 00007ffd4cbc6d68 \"}]",
      "id": "CVE-2024-49952",
      "lastModified": "2024-11-13T00:46:03.893",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}]}",
      "published": "2024-10-21T18:15:16.590",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/38e3fd0c4a2616052eb3c8f4e6f32d1ff47cd663\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/4e3542f40f3a94efa59ea328e307c50601ed7065\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/50067d8b3f48e4cd4c9e817d3e9a5b5ff3507ca7\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/531754952f5dfc4b141523088147071d6e6112c4\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/752e1924604254f1708f3e3700283a86ebdd325d\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/92ceba94de6fb4cee2bf40b485979c342f44a492\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/b40b027a0c0cc1cb9471a13f9730bb2fff12a15b\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/c0add6ed2cf1c4733cd489efc61faeccd3433b41\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/f839c5cd348201fec440d987cbca9b979bdb4fa7\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-49952\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-10-21T18:15:16.590\",\"lastModified\":\"2026-08-04T11:21:01.407\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_tables: prevent nf_skb_duplicated corruption\\n\\nsyzbot found that nf_dup_ipv4() or nf_dup_ipv6() could write\\nper-cpu variable nf_skb_duplicated in an unsafe way [1].\\n\\nDisabling preemption as hinted by the splat is not enough,\\nwe have to disable soft interrupts as well.\\n\\n[1]\\nBUG: using __this_cpu_write() in preemptible [00000000] code: syz.4.282/6316\\n caller is nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\\nCPU: 0 UID: 0 PID: 6316 Comm: syz.4.282 Not tainted 6.11.0-rc7-syzkaller-00104-g7052622fccb1 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\\nCall Trace:\\n \u003cTASK\u003e\\n  __dump_stack lib/dump_stack.c:93 [inline]\\n  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\\n  check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49\\n  nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\\n  nft_dup_ipv4_eval+0x1db/0x300 net/ipv4/netfilter/nft_dup_ipv4.c:30\\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\\n  nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288\\n  nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23\\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\\n  nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626\\n  nf_hook+0x2c4/0x450 include/linux/netfilter.h:269\\n  NF_HOOK_COND include/linux/netfilter.h:302 [inline]\\n  ip_output+0x185/0x230 net/ipv4/ip_output.c:433\\n  ip_local_out net/ipv4/ip_output.c:129 [inline]\\n  ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1495\\n  udp_send_skb+0xacf/0x1650 net/ipv4/udp.c:981\\n  udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1269\\n  sock_sendmsg_nosec net/socket.c:730 [inline]\\n  __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\\n  ___sys_sendmsg net/socket.c:2651 [inline]\\n  __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737\\n  __do_sys_sendmmsg net/socket.c:2766 [inline]\\n  __se_sys_sendmmsg net/socket.c:2763 [inline]\\n  __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763\\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f4ce4f7def9\\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f4ce5d4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133\\nRAX: ffffffffffffffda RBX: 00007f4ce5135f80 RCX: 00007f4ce4f7def9\\nRDX: 0000000000000001 RSI: 0000000020005d40 RDI: 0000000000000006\\nRBP: 00007f4ce4ff0b76 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 0000000000000000 R14: 00007f4ce5135f80 R15: 00007ffd4cbc6d68\\n \u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: nf_tables: prevent nf_skb_duplicated democracy syzbot encontr\u00f3 que nf_dup_ipv4() o nf_dup_ipv6() podr\u00edan escribir la variable por CPU nf_skb_duplicated de una manera insegura [1]. Deshabilitar la preempci\u00f3n como lo sugiere el splat no es suficiente, tambi\u00e9n tenemos que deshabilitar las interrupciones suaves. [1] ERROR: uso de __this_cpu_write() en c\u00f3digo preemptible [00000000]: syz.4.282/6316 el llamador es nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87 CPU: 0 UID: 0 PID: 6316 Comm: syz.4.282 No contaminado 6.11.0-rc7-syzkaller-00104-g7052622fccb1 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:93 [en l\u00ednea] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49 nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87 nft_dup_ipv4_eval+0x1db/0x300 net/ipv4/netfilter/nft_dup_ipv4.c:30 expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [en l\u00ednea] nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288 nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23 nf_hook_entry_hookfn incluye/linux/netfilter.h:154 [en l\u00ednea] nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626 nf_hook+0x2c4/0x450 incluye/linux/netfilter.h:269 NF_HOOK_COND incluye/linux/netfilter.h:302 [en l\u00ednea] ip_output+0x185/0x230 net/ipv4/ip_output.c:433 ip_local_out net/ipv4/ip_output.c:129 [en l\u00ednea] ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1495 udp_send_skb+0xacf/0x1650 net/ipv4/udp.c:981 udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1269 sock_sendmsg_nosec net/socket.c:730 [en l\u00ednea] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [en l\u00ednea] __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737 __do_sys_sendmmsg net/socket.c:2766 [en l\u00ednea] __se_sys_sendmmsg net/socket.c:2763 [en l\u00ednea] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f4ce4f7def9 C\u00f3digo: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4ce5d4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f4ce5135f80 RCX: 00007f4ce4f7def9 RDX: 00000000000000001 RSI: 0000000020005d40 RDI: 0000000000000006 RBP: 00007f4ce4ff0b76 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f4ce5135f80 R15: 00007ffd4cbc6d68 \"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/ipv4/netfilter/nf_dup_ipv4.c\",\"net/ipv6/netfilter/nf_dup_ipv6.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"50067d8b3f48e4cd4c9e817d3e9a5b5ff3507ca7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"c0add6ed2cf1c4733cd489efc61faeccd3433b41\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"531754952f5dfc4b141523088147071d6e6112c4\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"38e3fd0c4a2616052eb3c8f4e6f32d1ff47cd663\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"b40b027a0c0cc1cb9471a13f9730bb2fff12a15b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"4e3542f40f3a94efa59ea328e307c50601ed7065\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"f839c5cd348201fec440d987cbca9b979bdb4fa7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"752e1924604254f1708f3e3700283a86ebdd325d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d877f07112f1e5a247c6b585c971a93895c9f738\",\"lessThan\":\"92ceba94de6fb4cee2bf40b485979c342f44a492\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/ipv4/netfilter/nf_dup_ipv4.c\",\"net/ipv6/netfilter/nf_dup_ipv6.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4.3\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"4.3\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"4.19.323\",\"lessThanOrEqual\":\"4.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.4.285\",\"lessThanOrEqual\":\"5.4.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.227\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.168\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.113\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.55\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.10.14\",\"lessThanOrEqual\":\"6.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.11.3\",\"lessThanOrEqual\":\"6.11.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]},{\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\",\"affectedData\":[{\"vendor\":\"Siemens\",\"product\":\"RUGGEDCOM RST2428P\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"V3.2\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"*\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]},{\"vendor\":\"Siemens\",\"product\":\"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP\",\"defaultStatus\":\"unknown\",\"versions\":[{\"version\":\"V3.1.0\",\"lessThan\":\"V3.1.5\",\"versionType\":\"custom\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2024-10-22T13:36:15.803620Z\",\"id\":\"CVE-2024-49952\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.3\",\"versionEndExcluding\":\"4.19.323\",\"matchCriteriaId\":\"DEAA99E9-44C6-4908-AE62-9763660B744F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.285\",\"matchCriteriaId\":\"B5A89369-320F-47FC-8695-56F61F87E4C0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.227\",\"matchCriteriaId\":\"795A3EE6-0CAB-4409-A903-151C94ACECC0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.168\",\"matchCriteriaId\":\"4D51C05D-455B-4D8D-89E7-A58E140B864C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.113\",\"matchCriteriaId\":\"D01BD22E-ACD1-4618-9D01-6116570BE1EE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.55\",\"matchCriteriaId\":\"E90B9576-56C4-47BC-AAB0-C5B2D438F5D0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.14\",\"matchCriteriaId\":\"4C16BCE0-FFA0-4599-BE0A-1FD65101C021\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.3\",\"matchCriteriaId\":\"54D9C704-D679-41A7-9C40-10A6B1E7FFE9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/38e3fd0c4a2616052eb3c8f4e6f32d1ff47cd663\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4e3542f40f3a94efa59ea328e307c50601ed7065\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/50067d8b3f48e4cd4c9e817d3e9a5b5ff3507ca7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/531754952f5dfc4b141523088147071d6e6112c4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/752e1924604254f1708f3e3700283a86ebdd325d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/92ceba94de6fb4cee2bf40b485979c342f44a492\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b40b027a0c0cc1cb9471a13f9730bb2fff12a15b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c0add6ed2cf1c4733cd489efc61faeccd3433b41\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f839c5cd348201fec440d987cbca9b979bdb4fa7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-355557.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"},{\"url\":\"https://cert-portal.siemens.com/productcert/html/ssa-398330.html\",\"source\":\"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-04T17:53:03+00:00",
      "cve": "CVE-2024-49952",
      "id": "CVE-2024-49952",
      "initial_release_date": "2024-10-21T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: netfilter: nf_tables: prevent nf_skb_duplicated corruption",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-49952.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-12T23:54:08Z",
      "cve": "CVE-2024-49952",
      "id": "CVE-2024-49952",
      "initial_release_date": "2024-10-24T03:18:32Z",
      "product_status:known_affected": "700",
      "product_status:known_not_affected": "38",
      "product_status:recommended": "436",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-49952",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-49952.json",
      "version": "64"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:23:32.342Z\"}}, {\"affected\": [{\"vendor\": \"Siemens\", \"product\": \"RUGGEDCOM RST2428P\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"V3.2\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"V3.2\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SCALANCE XCM-/XRM-/XCH-/XRH-300 family\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"V3.2\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 TM MFP - GNU/Linux subsystem\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Siemens\", \"product\": \"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP\", \"versions\": [{\"status\": \"affected\", \"version\": \"V3.1.0\", \"lessThan\": \"V3.1.5\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"x_adpType\": \"supplier\", \"references\": [{\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-398330.html\"}, {\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-265688.html\"}, {\"url\": \"https://cert-portal.siemens.com/productcert/html/ssa-355557.html\"}], \"providerMetadata\": {\"orgId\": \"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e\", \"shortName\": \"siemens-SADP\", \"dateUpdated\": \"2026-05-12T11:59:26.475Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-49952\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:36:15.803620Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:36:19.021Z\"}}], \"cna\": {\"title\": \"netfilter: nf_tables: prevent nf_skb_duplicated corruption\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"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\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"AV:L - The vulnerable code is reached by configuring an nftables `dup` rule over netfilter netlink and then sending packets from a local socket (`sendmmsg` \\u2192 `ip_output` \\u2192 `nft_do_chain` \\u2192 `nf_dup_ipv4`); no remote peer can reach the preemptible-context variant of this path.\\nAC:L - The attacker controls both sides of the race \\u2014 process-context `nf_dup` calls via a thread pool flooding `sendmmsg` with `sched_setaffinity` churn to force migration between the two `__this_cpu_write()` calls, plus concurrent softirq-context `nf_dup` calls from received/looped packets \\u2014 and can retry indefinitely with no condition outside their influence.\\nPR:L - Reaching the code needs CAP_NET_ADMIN over a network namespace, which any unprivileged user obtains with `unshare -Urn` since nfnetlink gates on `netlink_net_capable(skb, CAP_NET_ADMIN)` and `ip_tables` on `ns_capable(sock_net(sk)-\u003euser_ns, ...)`; `__request_module()` autoloads `nft_dup_ipv4` with no capability check.\\nUI:N - The attacker installs the nftables rule and generates the traffic entirely on their own; no victim action or interaction is involved.\\nS:U - The corrupted state and its consequences are confined to the kernel\u0027s own security authority; this is a standard in-kernel bug with no VM, IOMMU, or hypervisor boundary crossing.\\nC:H - Defeating the recursion guard permits nested re-entry into `ip_local_out`/`nft_do_chain`, and sufficiently deep recursion overflows the 16 KB kernel stack \\u2014 on configurations without `CONFIG_VMAP_STACK` (common on embedded/32-bit deployments) this reads and writes adjacent kernel memory, which is leverageable for kernel memory disclosure.\\nI:H - The unsynchronized per-CPU write corrupts global, cross-namespace kernel state: an unprivileged container can permanently pin a CPU\u0027s guard to `true`, silently disabling `dup`/`TEE` packet mirroring for the host\u0027s own IDS/monitoring rules, and the reverse corruption defeats the recursion invariant leading to stack overflow into adjacent kernel memory.\\nA:H - A defeated recursion guard allows the duplicated skb to be duplicated again on each nesting level, driving unbounded packet amplification and kernel stack exhaustion that ends in a guard-page oops/panic; on `CONFIG_DEBUG_PREEMPT` kernels the same path emits the `BUG:` splat, which panics under `panic_on_warn`.\"}]}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"50067d8b3f48e4cd4c9e817d3e9a5b5ff3507ca7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"c0add6ed2cf1c4733cd489efc61faeccd3433b41\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"531754952f5dfc4b141523088147071d6e6112c4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"38e3fd0c4a2616052eb3c8f4e6f32d1ff47cd663\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"b40b027a0c0cc1cb9471a13f9730bb2fff12a15b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"4e3542f40f3a94efa59ea328e307c50601ed7065\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"f839c5cd348201fec440d987cbca9b979bdb4fa7\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"752e1924604254f1708f3e3700283a86ebdd325d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"d877f07112f1e5a247c6b585c971a93895c9f738\", \"lessThan\": \"92ceba94de6fb4cee2bf40b485979c342f44a492\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv4/netfilter/nf_dup_ipv4.c\", \"net/ipv6/netfilter/nf_dup_ipv6.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.323\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.285\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.227\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.168\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.113\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.55\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.14\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv4/netfilter/nf_dup_ipv4.c\", \"net/ipv6/netfilter/nf_dup_ipv6.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/50067d8b3f48e4cd4c9e817d3e9a5b5ff3507ca7\"}, {\"url\": \"https://git.kernel.org/stable/c/c0add6ed2cf1c4733cd489efc61faeccd3433b41\"}, {\"url\": \"https://git.kernel.org/stable/c/531754952f5dfc4b141523088147071d6e6112c4\"}, {\"url\": \"https://git.kernel.org/stable/c/38e3fd0c4a2616052eb3c8f4e6f32d1ff47cd663\"}, {\"url\": \"https://git.kernel.org/stable/c/b40b027a0c0cc1cb9471a13f9730bb2fff12a15b\"}, {\"url\": \"https://git.kernel.org/stable/c/4e3542f40f3a94efa59ea328e307c50601ed7065\"}, {\"url\": \"https://git.kernel.org/stable/c/f839c5cd348201fec440d987cbca9b979bdb4fa7\"}, {\"url\": \"https://git.kernel.org/stable/c/752e1924604254f1708f3e3700283a86ebdd325d\"}, {\"url\": \"https://git.kernel.org/stable/c/92ceba94de6fb4cee2bf40b485979c342f44a492\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: nf_tables: prevent nf_skb_duplicated corruption\\n\\nsyzbot found that nf_dup_ipv4() or nf_dup_ipv6() could write\\nper-cpu variable nf_skb_duplicated in an unsafe way [1].\\n\\nDisabling preemption as hinted by the splat is not enough,\\nwe have to disable soft interrupts as well.\\n\\n[1]\\nBUG: using __this_cpu_write() in preemptible [00000000] code: syz.4.282/6316\\n caller is nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\\nCPU: 0 UID: 0 PID: 6316 Comm: syz.4.282 Not tainted 6.11.0-rc7-syzkaller-00104-g7052622fccb1 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\\nCall Trace:\\n \u003cTASK\u003e\\n  __dump_stack lib/dump_stack.c:93 [inline]\\n  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119\\n  check_preemption_disabled+0x10e/0x120 lib/smp_processor_id.c:49\\n  nf_dup_ipv4+0x651/0x8f0 net/ipv4/netfilter/nf_dup_ipv4.c:87\\n  nft_dup_ipv4_eval+0x1db/0x300 net/ipv4/netfilter/nft_dup_ipv4.c:30\\n  expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]\\n  nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288\\n  nft_do_chain_ipv4+0x202/0x320 net/netfilter/nft_chain_filter.c:23\\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\\n  nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626\\n  nf_hook+0x2c4/0x450 include/linux/netfilter.h:269\\n  NF_HOOK_COND include/linux/netfilter.h:302 [inline]\\n  ip_output+0x185/0x230 net/ipv4/ip_output.c:433\\n  ip_local_out net/ipv4/ip_output.c:129 [inline]\\n  ip_send_skb+0x74/0x100 net/ipv4/ip_output.c:1495\\n  udp_send_skb+0xacf/0x1650 net/ipv4/udp.c:981\\n  udp_sendmsg+0x1c21/0x2a60 net/ipv4/udp.c:1269\\n  sock_sendmsg_nosec net/socket.c:730 [inline]\\n  __sock_sendmsg+0x1a6/0x270 net/socket.c:745\\n  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597\\n  ___sys_sendmsg net/socket.c:2651 [inline]\\n  __sys_sendmmsg+0x3b2/0x740 net/socket.c:2737\\n  __do_sys_sendmmsg net/socket.c:2766 [inline]\\n  __se_sys_sendmmsg net/socket.c:2763 [inline]\\n  __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2763\\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f4ce4f7def9\\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f4ce5d4a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133\\nRAX: ffffffffffffffda RBX: 00007f4ce5135f80 RCX: 00007f4ce4f7def9\\nRDX: 0000000000000001 RSI: 0000000020005d40 RDI: 0000000000000006\\nRBP: 00007f4ce4ff0b76 R08: 0000000000000000 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\\nR13: 0000000000000000 R14: 00007f4ce5135f80 R15: 00007ffd4cbc6d68\\n \u003c/TASK\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.323\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.285\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.227\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.168\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.113\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.55\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.14\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.3\", \"versionStartIncluding\": \"4.3\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"4.3\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-08-05T11:40:39.691Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-49952\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T11:40:39.691Z\", \"dateReserved\": \"2024-10-21T12:17:06.047Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T18:02:07.718Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.