CVE-2024-50039 (GCVE-0-2024-50039)

Vulnerability from cvelistv5 – Published: 2024-10-21 19:39 – Updated: 2025-11-03 22:24
VLAI?
Title
net/sched: accept TCA_STAB only for root qdisc
Summary
In the Linux kernel, the following vulnerability has been resolved: net/sched: accept TCA_STAB only for root qdisc Most qdiscs maintain their backlog using qdisc_pkt_len(skb) on the assumption it is invariant between the enqueue() and dequeue() handlers. Unfortunately syzbot can crash a host rather easily using a TBF + SFQ combination, with an STAB on SFQ [1] We can't support TCA_STAB on arbitrary level, this would require to maintain per-qdisc storage. [1] [ 88.796496] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 88.798611] #PF: supervisor read access in kernel mode [ 88.799014] #PF: error_code(0x0000) - not-present page [ 88.799506] PGD 0 P4D 0 [ 88.799829] Oops: Oops: 0000 [#1] SMP NOPTI [ 88.800569] CPU: 14 UID: 0 PID: 2053 Comm: b371744477 Not tainted 6.12.0-rc1-virtme #1117 [ 88.801107] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 88.801779] RIP: 0010:sfq_dequeue (net/sched/sch_sfq.c:272 net/sched/sch_sfq.c:499) sch_sfq [ 88.802544] Code: 0f b7 50 12 48 8d 04 d5 00 00 00 00 48 89 d6 48 29 d0 48 8b 91 c0 01 00 00 48 c1 e0 03 48 01 c2 66 83 7a 1a 00 7e c0 48 8b 3a <4c> 8b 07 4c 89 02 49 89 50 08 48 c7 47 08 00 00 00 00 48 c7 07 00 All code ======== 0: 0f b7 50 12 movzwl 0x12(%rax),%edx 4: 48 8d 04 d5 00 00 00 lea 0x0(,%rdx,8),%rax b: 00 c: 48 89 d6 mov %rdx,%rsi f: 48 29 d0 sub %rdx,%rax 12: 48 8b 91 c0 01 00 00 mov 0x1c0(%rcx),%rdx 19: 48 c1 e0 03 shl $0x3,%rax 1d: 48 01 c2 add %rax,%rdx 20: 66 83 7a 1a 00 cmpw $0x0,0x1a(%rdx) 25: 7e c0 jle 0xffffffffffffffe7 27: 48 8b 3a mov (%rdx),%rdi 2a:* 4c 8b 07 mov (%rdi),%r8 <-- trapping instruction 2d: 4c 89 02 mov %r8,(%rdx) 30: 49 89 50 08 mov %rdx,0x8(%r8) 34: 48 c7 47 08 00 00 00 movq $0x0,0x8(%rdi) 3b: 00 3c: 48 rex.W 3d: c7 .byte 0xc7 3e: 07 (bad) ... Code starting with the faulting instruction =========================================== 0: 4c 8b 07 mov (%rdi),%r8 3: 4c 89 02 mov %r8,(%rdx) 6: 49 89 50 08 mov %rdx,0x8(%r8) a: 48 c7 47 08 00 00 00 movq $0x0,0x8(%rdi) 11: 00 12: 48 rex.W 13: c7 .byte 0xc7 14: 07 (bad) ... [ 88.803721] RSP: 0018:ffff9a1f892b7d58 EFLAGS: 00000206 [ 88.804032] RAX: 0000000000000000 RBX: ffff9a1f8420c800 RCX: ffff9a1f8420c800 [ 88.804560] RDX: ffff9a1f81bc1440 RSI: 0000000000000000 RDI: 0000000000000000 [ 88.805056] RBP: ffffffffc04bb0e0 R08: 0000000000000001 R09: 00000000ff7f9a1f [ 88.805473] R10: 000000000001001b R11: 0000000000009a1f R12: 0000000000000140 [ 88.806194] R13: 0000000000000001 R14: ffff9a1f886df400 R15: ffff9a1f886df4ac [ 88.806734] FS: 00007f445601a740(0000) GS:ffff9a2e7fd80000(0000) knlGS:0000000000000000 [ 88.807225] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.807672] CR2: 0000000000000000 CR3: 000000050cc46000 CR4: 00000000000006f0 [ 88.808165] Call Trace: [ 88.808459] <TASK> [ 88.808710] ? __die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434) [ 88.809261] ? page_fault_oops (arch/x86/mm/fault.c:715) [ 88.809561] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:147 arch/x86/mm/fault.c:1489 arch/x86/mm/fault.c:1539) [ 88.809806] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623) [ 88.810074] ? sfq_dequeue (net/sched/sch_sfq.c:272 net/sched/sch_sfq.c:499) sch_sfq [ 88.810411] sfq_reset (net/sched/sch_sfq.c:525) sch_sfq [ 88.810671] qdisc_reset (./include/linux/skbuff.h:2135 ./include/linux/skbuff.h:2441 ./include/linux/skbuff.h:3304 ./include/linux/skbuff.h:3310 net/sched/sch_g ---truncated---
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 175f9c1bba9b825d22b142d183c9e175488b260c , < 2acbb9539bc2284e30d2aeb789c3d96287014264 (git)
Affected: 175f9c1bba9b825d22b142d183c9e175488b260c , < adbc3eef43fc94c7c8436da832691ae02333a972 (git)
Affected: 175f9c1bba9b825d22b142d183c9e175488b260c , < 8fb6503592d39065316f45d267c5527b4e7cd995 (git)
Affected: 175f9c1bba9b825d22b142d183c9e175488b260c , < 76feedc74b90270390fbfdf74a2e944e96872363 (git)
Affected: 175f9c1bba9b825d22b142d183c9e175488b260c , < 1edf039ee01788ffc25625fe58a903ae2efa213e (git)
Affected: 175f9c1bba9b825d22b142d183c9e175488b260c , < 3dc6ee96473cc2962c6db4297d4631f261be150f (git)
Affected: 175f9c1bba9b825d22b142d183c9e175488b260c , < 3cb7cf1540ddff5473d6baeb530228d19bc97b8a (git)
Create a notification for this product.
    Linux Linux Affected: 2.6.27
Unaffected: 0 , < 2.6.27 (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: 6.6.57 , ≤ 6.6.* (semver)
Unaffected: 6.11.4 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: accept TCA_STAB only for root qdisc\n\nMost qdiscs maintain their backlog using qdisc_pkt_len(skb)\non the assumption it is invariant between the enqueue()\nand dequeue() handlers.\n\nUnfortunately syzbot can crash a host rather easily using\na TBF + SFQ combination, with an STAB on SFQ [1]\n\nWe can\u0027t support TCA_STAB on arbitrary level, this would\nrequire to maintain per-qdisc storage.\n\n[1]\n[   88.796496] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[   88.798611] #PF: supervisor read access in kernel mode\n[   88.799014] #PF: error_code(0x0000) - not-present page\n[   88.799506] PGD 0 P4D 0\n[   88.799829] Oops: Oops: 0000 [#1] SMP NOPTI\n[   88.800569] CPU: 14 UID: 0 PID: 2053 Comm: b371744477 Not tainted 6.12.0-rc1-virtme #1117\n[   88.801107] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n[   88.801779] RIP: 0010:sfq_dequeue (net/sched/sch_sfq.c:272 net/sched/sch_sfq.c:499) sch_sfq\n[ 88.802544] Code: 0f b7 50 12 48 8d 04 d5 00 00 00 00 48 89 d6 48 29 d0 48 8b 91 c0 01 00 00 48 c1 e0 03 48 01 c2 66 83 7a 1a 00 7e c0 48 8b 3a \u003c4c\u003e 8b 07 4c 89 02 49 89 50 08 48 c7 47 08 00 00 00 00 48 c7 07 00\nAll code\n========\n   0:\t0f b7 50 12          \tmovzwl 0x12(%rax),%edx\n   4:\t48 8d 04 d5 00 00 00 \tlea    0x0(,%rdx,8),%rax\n   b:\t00\n   c:\t48 89 d6             \tmov    %rdx,%rsi\n   f:\t48 29 d0             \tsub    %rdx,%rax\n  12:\t48 8b 91 c0 01 00 00 \tmov    0x1c0(%rcx),%rdx\n  19:\t48 c1 e0 03          \tshl    $0x3,%rax\n  1d:\t48 01 c2             \tadd    %rax,%rdx\n  20:\t66 83 7a 1a 00       \tcmpw   $0x0,0x1a(%rdx)\n  25:\t7e c0                \tjle    0xffffffffffffffe7\n  27:\t48 8b 3a             \tmov    (%rdx),%rdi\n  2a:*\t4c 8b 07             \tmov    (%rdi),%r8\t\t\u003c-- trapping instruction\n  2d:\t4c 89 02             \tmov    %r8,(%rdx)\n  30:\t49 89 50 08          \tmov    %rdx,0x8(%r8)\n  34:\t48 c7 47 08 00 00 00 \tmovq   $0x0,0x8(%rdi)\n  3b:\t00\n  3c:\t48                   \trex.W\n  3d:\tc7                   \t.byte 0xc7\n  3e:\t07                   \t(bad)\n\t...\n\nCode starting with the faulting instruction\n===========================================\n   0:\t4c 8b 07             \tmov    (%rdi),%r8\n   3:\t4c 89 02             \tmov    %r8,(%rdx)\n   6:\t49 89 50 08          \tmov    %rdx,0x8(%r8)\n   a:\t48 c7 47 08 00 00 00 \tmovq   $0x0,0x8(%rdi)\n  11:\t00\n  12:\t48                   \trex.W\n  13:\tc7                   \t.byte 0xc7\n  14:\t07                   \t(bad)\n\t...\n[   88.803721] RSP: 0018:ffff9a1f892b7d58 EFLAGS: 00000206\n[   88.804032] RAX: 0000000000000000 RBX: ffff9a1f8420c800 RCX: ffff9a1f8420c800\n[   88.804560] RDX: ffff9a1f81bc1440 RSI: 0000000000000000 RDI: 0000000000000000\n[   88.805056] RBP: ffffffffc04bb0e0 R08: 0000000000000001 R09: 00000000ff7f9a1f\n[   88.805473] R10: 000000000001001b R11: 0000000000009a1f R12: 0000000000000140\n[   88.806194] R13: 0000000000000001 R14: ffff9a1f886df400 R15: ffff9a1f886df4ac\n[   88.806734] FS:  00007f445601a740(0000) GS:ffff9a2e7fd80000(0000) knlGS:0000000000000000\n[   88.807225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   88.807672] CR2: 0000000000000000 CR3: 000000050cc46000 CR4: 00000000000006f0\n[   88.808165] Call Trace:\n[   88.808459]  \u003cTASK\u003e\n[   88.808710] ? __die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434)\n[   88.809261] ? page_fault_oops (arch/x86/mm/fault.c:715)\n[   88.809561] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:147 arch/x86/mm/fault.c:1489 arch/x86/mm/fault.c:1539)\n[   88.809806] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623)\n[   88.810074] ? sfq_dequeue (net/sched/sch_sfq.c:272 net/sched/sch_sfq.c:499) sch_sfq\n[   88.810411] sfq_reset (net/sched/sch_sfq.c:525) sch_sfq\n[   88.810671] qdisc_reset (./include/linux/skbuff.h:2135 ./include/linux/skbuff.h:2441 ./include/linux/skbuff.h:3304 ./include/linux/skbuff.h:3310 net/sched/sch_g\n---truncated---"
        }
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      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:44:26.727Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2acbb9539bc2284e30d2aeb789c3d96287014264"
        },
        {
          "url": "https://git.kernel.org/stable/c/adbc3eef43fc94c7c8436da832691ae02333a972"
        },
        {
          "url": "https://git.kernel.org/stable/c/8fb6503592d39065316f45d267c5527b4e7cd995"
        },
        {
          "url": "https://git.kernel.org/stable/c/76feedc74b90270390fbfdf74a2e944e96872363"
        },
        {
          "url": "https://git.kernel.org/stable/c/1edf039ee01788ffc25625fe58a903ae2efa213e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3dc6ee96473cc2962c6db4297d4631f261be150f"
        },
        {
          "url": "https://git.kernel.org/stable/c/3cb7cf1540ddff5473d6baeb530228d19bc97b8a"
        }
      ],
      "title": "net/sched: accept TCA_STAB only for root qdisc",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50039",
    "datePublished": "2024-10-21T19:39:39.115Z",
    "dateReserved": "2024-10-21T12:17:06.070Z",
    "dateUpdated": "2025-11-03T22:24:45.361Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "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\": \"2025-11-03T22:24:45.361Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-50039\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-10-22T13:25:02.696853Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-10-22T13:25:05.945Z\"}}], \"cna\": {\"title\": \"net/sched: accept TCA_STAB only for root qdisc\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"175f9c1bba9b825d22b142d183c9e175488b260c\", \"lessThan\": \"2acbb9539bc2284e30d2aeb789c3d96287014264\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"175f9c1bba9b825d22b142d183c9e175488b260c\", \"lessThan\": \"adbc3eef43fc94c7c8436da832691ae02333a972\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"175f9c1bba9b825d22b142d183c9e175488b260c\", \"lessThan\": \"8fb6503592d39065316f45d267c5527b4e7cd995\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"175f9c1bba9b825d22b142d183c9e175488b260c\", \"lessThan\": \"76feedc74b90270390fbfdf74a2e944e96872363\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"175f9c1bba9b825d22b142d183c9e175488b260c\", \"lessThan\": \"1edf039ee01788ffc25625fe58a903ae2efa213e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"175f9c1bba9b825d22b142d183c9e175488b260c\", \"lessThan\": \"3dc6ee96473cc2962c6db4297d4631f261be150f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"175f9c1bba9b825d22b142d183c9e175488b260c\", \"lessThan\": \"3cb7cf1540ddff5473d6baeb530228d19bc97b8a\", \"versionType\": \"git\"}], \"programFiles\": [\"include/net/sch_generic.h\", \"net/sched/sch_api.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.27\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.27\", \"versionType\": \"semver\"}, {\"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\": \"6.6.57\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.11.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"include/net/sch_generic.h\", \"net/sched/sch_api.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/2acbb9539bc2284e30d2aeb789c3d96287014264\"}, {\"url\": \"https://git.kernel.org/stable/c/adbc3eef43fc94c7c8436da832691ae02333a972\"}, {\"url\": \"https://git.kernel.org/stable/c/8fb6503592d39065316f45d267c5527b4e7cd995\"}, {\"url\": \"https://git.kernel.org/stable/c/76feedc74b90270390fbfdf74a2e944e96872363\"}, {\"url\": \"https://git.kernel.org/stable/c/1edf039ee01788ffc25625fe58a903ae2efa213e\"}, {\"url\": \"https://git.kernel.org/stable/c/3dc6ee96473cc2962c6db4297d4631f261be150f\"}, {\"url\": \"https://git.kernel.org/stable/c/3cb7cf1540ddff5473d6baeb530228d19bc97b8a\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet/sched: accept TCA_STAB only for root qdisc\\n\\nMost qdiscs maintain their backlog using qdisc_pkt_len(skb)\\non the assumption it is invariant between the enqueue()\\nand dequeue() handlers.\\n\\nUnfortunately syzbot can crash a host rather easily using\\na TBF + SFQ combination, with an STAB on SFQ [1]\\n\\nWe can\u0027t support TCA_STAB on arbitrary level, this would\\nrequire to maintain per-qdisc storage.\\n\\n[1]\\n[   88.796496] BUG: kernel NULL pointer dereference, address: 0000000000000000\\n[   88.798611] #PF: supervisor read access in kernel mode\\n[   88.799014] #PF: error_code(0x0000) - not-present page\\n[   88.799506] PGD 0 P4D 0\\n[   88.799829] Oops: Oops: 0000 [#1] SMP NOPTI\\n[   88.800569] CPU: 14 UID: 0 PID: 2053 Comm: b371744477 Not tainted 6.12.0-rc1-virtme #1117\\n[   88.801107] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\\n[   88.801779] RIP: 0010:sfq_dequeue (net/sched/sch_sfq.c:272 net/sched/sch_sfq.c:499) sch_sfq\\n[ 88.802544] Code: 0f b7 50 12 48 8d 04 d5 00 00 00 00 48 89 d6 48 29 d0 48 8b 91 c0 01 00 00 48 c1 e0 03 48 01 c2 66 83 7a 1a 00 7e c0 48 8b 3a \u003c4c\u003e 8b 07 4c 89 02 49 89 50 08 48 c7 47 08 00 00 00 00 48 c7 07 00\\nAll code\\n========\\n   0:\\t0f b7 50 12          \\tmovzwl 0x12(%rax),%edx\\n   4:\\t48 8d 04 d5 00 00 00 \\tlea    0x0(,%rdx,8),%rax\\n   b:\\t00\\n   c:\\t48 89 d6             \\tmov    %rdx,%rsi\\n   f:\\t48 29 d0             \\tsub    %rdx,%rax\\n  12:\\t48 8b 91 c0 01 00 00 \\tmov    0x1c0(%rcx),%rdx\\n  19:\\t48 c1 e0 03          \\tshl    $0x3,%rax\\n  1d:\\t48 01 c2             \\tadd    %rax,%rdx\\n  20:\\t66 83 7a 1a 00       \\tcmpw   $0x0,0x1a(%rdx)\\n  25:\\t7e c0                \\tjle    0xffffffffffffffe7\\n  27:\\t48 8b 3a             \\tmov    (%rdx),%rdi\\n  2a:*\\t4c 8b 07             \\tmov    (%rdi),%r8\\t\\t\u003c-- trapping instruction\\n  2d:\\t4c 89 02             \\tmov    %r8,(%rdx)\\n  30:\\t49 89 50 08          \\tmov    %rdx,0x8(%r8)\\n  34:\\t48 c7 47 08 00 00 00 \\tmovq   $0x0,0x8(%rdi)\\n  3b:\\t00\\n  3c:\\t48                   \\trex.W\\n  3d:\\tc7                   \\t.byte 0xc7\\n  3e:\\t07                   \\t(bad)\\n\\t...\\n\\nCode starting with the faulting instruction\\n===========================================\\n   0:\\t4c 8b 07             \\tmov    (%rdi),%r8\\n   3:\\t4c 89 02             \\tmov    %r8,(%rdx)\\n   6:\\t49 89 50 08          \\tmov    %rdx,0x8(%r8)\\n   a:\\t48 c7 47 08 00 00 00 \\tmovq   $0x0,0x8(%rdi)\\n  11:\\t00\\n  12:\\t48                   \\trex.W\\n  13:\\tc7                   \\t.byte 0xc7\\n  14:\\t07                   \\t(bad)\\n\\t...\\n[   88.803721] RSP: 0018:ffff9a1f892b7d58 EFLAGS: 00000206\\n[   88.804032] RAX: 0000000000000000 RBX: ffff9a1f8420c800 RCX: ffff9a1f8420c800\\n[   88.804560] RDX: ffff9a1f81bc1440 RSI: 0000000000000000 RDI: 0000000000000000\\n[   88.805056] RBP: ffffffffc04bb0e0 R08: 0000000000000001 R09: 00000000ff7f9a1f\\n[   88.805473] R10: 000000000001001b R11: 0000000000009a1f R12: 0000000000000140\\n[   88.806194] R13: 0000000000000001 R14: ffff9a1f886df400 R15: ffff9a1f886df4ac\\n[   88.806734] FS:  00007f445601a740(0000) GS:ffff9a2e7fd80000(0000) knlGS:0000000000000000\\n[   88.807225] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[   88.807672] CR2: 0000000000000000 CR3: 000000050cc46000 CR4: 00000000000006f0\\n[   88.808165] Call Trace:\\n[   88.808459]  \u003cTASK\u003e\\n[   88.808710] ? __die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434)\\n[   88.809261] ? page_fault_oops (arch/x86/mm/fault.c:715)\\n[   88.809561] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:147 arch/x86/mm/fault.c:1489 arch/x86/mm/fault.c:1539)\\n[   88.809806] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:623)\\n[   88.810074] ? sfq_dequeue (net/sched/sch_sfq.c:272 net/sched/sch_sfq.c:499) sch_sfq\\n[   88.810411] sfq_reset (net/sched/sch_sfq.c:525) sch_sfq\\n[   88.810671] qdisc_reset (./include/linux/skbuff.h:2135 ./include/linux/skbuff.h:2441 ./include/linux/skbuff.h:3304 ./include/linux/skbuff.h:3310 net/sched/sch_g\\n---truncated---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.285\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.227\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.168\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.113\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.57\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.4\", \"versionStartIncluding\": \"2.6.27\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"2.6.27\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:44:26.727Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50039\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T22:24:45.361Z\", \"dateReserved\": \"2024-10-21T12:17:06.070Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-10-21T19:39:39.115Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

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.