CVE-2022-49402 (GCVE-0-2022-49402)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:12 – Updated: 2026-05-11 18:59
VLAI
Title
ftrace: Clean up hash direct_functions on register failures
Summary
In the Linux kernel, the following vulnerability has been resolved: ftrace: Clean up hash direct_functions on register failures We see the following GPF when register_ftrace_direct fails: [ ] general protection fault, probably for non-canonical address \ 0x200000000000010: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI [...] [ ] RIP: 0010:ftrace_find_rec_direct+0x53/0x70 [ ] Code: 48 c1 e0 03 48 03 42 08 48 8b 10 31 c0 48 85 d2 74 [...] [ ] RSP: 0018:ffffc9000138bc10 EFLAGS: 00010206 [ ] RAX: 0000000000000000 RBX: ffffffff813e0df0 RCX: 000000000000003b [ ] RDX: 0200000000000000 RSI: 000000000000000c RDI: ffffffff813e0df0 [ ] RBP: ffffffffa00a3000 R08: ffffffff81180ce0 R09: 0000000000000001 [ ] R10: ffffc9000138bc18 R11: 0000000000000001 R12: ffffffff813e0df0 [ ] R13: ffffffff813e0df0 R14: ffff888171b56400 R15: 0000000000000000 [ ] FS: 00007fa9420c7780(0000) GS:ffff888ff6a00000(0000) knlGS:000000000 [ ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ ] CR2: 000000000770d000 CR3: 0000000107d50003 CR4: 0000000000370ee0 [ ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ ] Call Trace: [ ] <TASK> [ ] register_ftrace_direct+0x54/0x290 [ ] ? render_sigset_t+0xa0/0xa0 [ ] bpf_trampoline_update+0x3f5/0x4a0 [ ] ? 0xffffffffa00a3000 [ ] bpf_trampoline_link_prog+0xa9/0x140 [ ] bpf_tracing_prog_attach+0x1dc/0x450 [ ] bpf_raw_tracepoint_open+0x9a/0x1e0 [ ] ? find_held_lock+0x2d/0x90 [ ] ? lock_release+0x150/0x430 [ ] __sys_bpf+0xbd6/0x2700 [ ] ? lock_is_held_type+0xd8/0x130 [ ] __x64_sys_bpf+0x1c/0x20 [ ] do_syscall_64+0x3a/0x80 [ ] entry_SYSCALL_64_after_hwframe+0x44/0xae [ ] RIP: 0033:0x7fa9421defa9 [ ] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 9 f8 [...] [ ] RSP: 002b:00007ffed743bd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ ] RAX: ffffffffffffffda RBX: 00000000069d2480 RCX: 00007fa9421defa9 [ ] RDX: 0000000000000078 RSI: 00007ffed743bd80 RDI: 0000000000000011 [ ] RBP: 00007ffed743be00 R08: 0000000000bb7270 R09: 0000000000000000 [ ] R10: 00000000069da210 R11: 0000000000000246 R12: 0000000000000001 [ ] R13: 00007ffed743c4b0 R14: 00000000069d2480 R15: 0000000000000001 [ ] </TASK> [ ] Modules linked in: klp_vm(OK) [ ] ---[ end trace 0000000000000000 ]--- One way to trigger this is: 1. load a livepatch that patches kernel function xxx; 2. run bpftrace -e 'kfunc:xxx {}', this will fail (expected for now); 3. repeat #2 => gpf. This is because the entry is added to direct_functions, but not removed. Fix this by remove the entry from direct_functions when register_ftrace_direct fails. Also remove the last trailing space from ftrace.c, so we don't have to worry about it anymore.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 763e34e74bb7d5c316015e2e39fcc8520bfd071c , < 82c888e51c2176a06f8b4541cf748ee81aac6e7e (git)
Affected: 763e34e74bb7d5c316015e2e39fcc8520bfd071c , < cae2978d6907ef2c08b9b15f704e783f7c284713 (git)
Affected: 763e34e74bb7d5c316015e2e39fcc8520bfd071c , < 805e87af946d8d2954171361e64d143ff37a441b (git)
Affected: 763e34e74bb7d5c316015e2e39fcc8520bfd071c , < a0392833a178cf109a57c2a9d4d531bdfc6cd98f (git)
Affected: 763e34e74bb7d5c316015e2e39fcc8520bfd071c , < 7d54c15cb89a29a5f59e5ffc9ee62e6591769ef1 (git)
Create a notification for this product.
Linux Linux Affected: 5.5
Unaffected: 0 , < 5.5 (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/trace/ftrace.c"
          ],
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              "versionType": "git"
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          "product": "Linux",
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
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              "status": "unaffected",
              "version": "0",
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              "version": "5.15.46",
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            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.14",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Clean up hash direct_functions on register failures\n\nWe see the following GPF when register_ftrace_direct fails:\n\n[ ] general protection fault, probably for non-canonical address \\\n  0x200000000000010: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI\n[...]\n[ ] RIP: 0010:ftrace_find_rec_direct+0x53/0x70\n[ ] Code: 48 c1 e0 03 48 03 42 08 48 8b 10 31 c0 48 85 d2 74 [...]\n[ ] RSP: 0018:ffffc9000138bc10 EFLAGS: 00010206\n[ ] RAX: 0000000000000000 RBX: ffffffff813e0df0 RCX: 000000000000003b\n[ ] RDX: 0200000000000000 RSI: 000000000000000c RDI: ffffffff813e0df0\n[ ] RBP: ffffffffa00a3000 R08: ffffffff81180ce0 R09: 0000000000000001\n[ ] R10: ffffc9000138bc18 R11: 0000000000000001 R12: ffffffff813e0df0\n[ ] R13: ffffffff813e0df0 R14: ffff888171b56400 R15: 0000000000000000\n[ ] FS:  00007fa9420c7780(0000) GS:ffff888ff6a00000(0000) knlGS:000000000\n[ ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ ] CR2: 000000000770d000 CR3: 0000000107d50003 CR4: 0000000000370ee0\n[ ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ ] Call Trace:\n[ ]  \u003cTASK\u003e\n[ ]  register_ftrace_direct+0x54/0x290\n[ ]  ? render_sigset_t+0xa0/0xa0\n[ ]  bpf_trampoline_update+0x3f5/0x4a0\n[ ]  ? 0xffffffffa00a3000\n[ ]  bpf_trampoline_link_prog+0xa9/0x140\n[ ]  bpf_tracing_prog_attach+0x1dc/0x450\n[ ]  bpf_raw_tracepoint_open+0x9a/0x1e0\n[ ]  ? find_held_lock+0x2d/0x90\n[ ]  ? lock_release+0x150/0x430\n[ ]  __sys_bpf+0xbd6/0x2700\n[ ]  ? lock_is_held_type+0xd8/0x130\n[ ]  __x64_sys_bpf+0x1c/0x20\n[ ]  do_syscall_64+0x3a/0x80\n[ ]  entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ ] RIP: 0033:0x7fa9421defa9\n[ ] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 9 f8 [...]\n[ ] RSP: 002b:00007ffed743bd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141\n[ ] RAX: ffffffffffffffda RBX: 00000000069d2480 RCX: 00007fa9421defa9\n[ ] RDX: 0000000000000078 RSI: 00007ffed743bd80 RDI: 0000000000000011\n[ ] RBP: 00007ffed743be00 R08: 0000000000bb7270 R09: 0000000000000000\n[ ] R10: 00000000069da210 R11: 0000000000000246 R12: 0000000000000001\n[ ] R13: 00007ffed743c4b0 R14: 00000000069d2480 R15: 0000000000000001\n[ ]  \u003c/TASK\u003e\n[ ] Modules linked in: klp_vm(OK)\n[ ] ---[ end trace 0000000000000000 ]---\n\nOne way to trigger this is:\n  1. load a livepatch that patches kernel function xxx;\n  2. run bpftrace -e \u0027kfunc:xxx {}\u0027, this will fail (expected for now);\n  3. repeat #2 =\u003e gpf.\n\nThis is because the entry is added to direct_functions, but not removed.\nFix this by remove the entry from direct_functions when\nregister_ftrace_direct fails.\n\nAlso remove the last trailing space from ftrace.c, so we don\u0027t have to\nworry about it anymore."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T18:59:03.812Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/82c888e51c2176a06f8b4541cf748ee81aac6e7e"
        },
        {
          "url": "https://git.kernel.org/stable/c/cae2978d6907ef2c08b9b15f704e783f7c284713"
        },
        {
          "url": "https://git.kernel.org/stable/c/805e87af946d8d2954171361e64d143ff37a441b"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0392833a178cf109a57c2a9d4d531bdfc6cd98f"
        },
        {
          "url": "https://git.kernel.org/stable/c/7d54c15cb89a29a5f59e5ffc9ee62e6591769ef1"
        }
      ],
      "title": "ftrace: Clean up hash direct_functions on register failures",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49402",
    "datePublished": "2025-02-26T02:12:29.070Z",
    "dateReserved": "2025-02-26T02:08:31.565Z",
    "dateUpdated": "2026-05-11T18:59:03.812Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-49402",
      "date": "2026-06-06",
      "epss": "0.00065",
      "percentile": "0.20452"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49402\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:16.750\",\"lastModified\":\"2025-10-21T12:14:34.683\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nftrace: Clean up hash direct_functions on register failures\\n\\nWe see the following GPF when register_ftrace_direct fails:\\n\\n[ ] general protection fault, probably for non-canonical address \\\\\\n  0x200000000000010: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI\\n[...]\\n[ ] RIP: 0010:ftrace_find_rec_direct+0x53/0x70\\n[ ] Code: 48 c1 e0 03 48 03 42 08 48 8b 10 31 c0 48 85 d2 74 [...]\\n[ ] RSP: 0018:ffffc9000138bc10 EFLAGS: 00010206\\n[ ] RAX: 0000000000000000 RBX: ffffffff813e0df0 RCX: 000000000000003b\\n[ ] RDX: 0200000000000000 RSI: 000000000000000c RDI: ffffffff813e0df0\\n[ ] RBP: ffffffffa00a3000 R08: ffffffff81180ce0 R09: 0000000000000001\\n[ ] R10: ffffc9000138bc18 R11: 0000000000000001 R12: ffffffff813e0df0\\n[ ] R13: ffffffff813e0df0 R14: ffff888171b56400 R15: 0000000000000000\\n[ ] FS:  00007fa9420c7780(0000) GS:ffff888ff6a00000(0000) knlGS:000000000\\n[ ] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[ ] CR2: 000000000770d000 CR3: 0000000107d50003 CR4: 0000000000370ee0\\n[ ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n[ ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n[ ] Call Trace:\\n[ ]  \u003cTASK\u003e\\n[ ]  register_ftrace_direct+0x54/0x290\\n[ ]  ? render_sigset_t+0xa0/0xa0\\n[ ]  bpf_trampoline_update+0x3f5/0x4a0\\n[ ]  ? 0xffffffffa00a3000\\n[ ]  bpf_trampoline_link_prog+0xa9/0x140\\n[ ]  bpf_tracing_prog_attach+0x1dc/0x450\\n[ ]  bpf_raw_tracepoint_open+0x9a/0x1e0\\n[ ]  ? find_held_lock+0x2d/0x90\\n[ ]  ? lock_release+0x150/0x430\\n[ ]  __sys_bpf+0xbd6/0x2700\\n[ ]  ? lock_is_held_type+0xd8/0x130\\n[ ]  __x64_sys_bpf+0x1c/0x20\\n[ ]  do_syscall_64+0x3a/0x80\\n[ ]  entry_SYSCALL_64_after_hwframe+0x44/0xae\\n[ ] RIP: 0033:0x7fa9421defa9\\n[ ] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 9 f8 [...]\\n[ ] RSP: 002b:00007ffed743bd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141\\n[ ] RAX: ffffffffffffffda RBX: 00000000069d2480 RCX: 00007fa9421defa9\\n[ ] RDX: 0000000000000078 RSI: 00007ffed743bd80 RDI: 0000000000000011\\n[ ] RBP: 00007ffed743be00 R08: 0000000000bb7270 R09: 0000000000000000\\n[ ] R10: 00000000069da210 R11: 0000000000000246 R12: 0000000000000001\\n[ ] R13: 00007ffed743c4b0 R14: 00000000069d2480 R15: 0000000000000001\\n[ ]  \u003c/TASK\u003e\\n[ ] Modules linked in: klp_vm(OK)\\n[ ] ---[ end trace 0000000000000000 ]---\\n\\nOne way to trigger this is:\\n  1. load a livepatch that patches kernel function xxx;\\n  2. run bpftrace -e \u0027kfunc:xxx {}\u0027, this will fail (expected for now);\\n  3. repeat #2 =\u003e gpf.\\n\\nThis is because the entry is added to direct_functions, but not removed.\\nFix this by remove the entry from direct_functions when\\nregister_ftrace_direct fails.\\n\\nAlso remove the last trailing space from ftrace.c, so we don\u0027t have to\\nworry about it anymore.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ftrace: Limpiar hash direct_functions en caso de fallos de registro Vemos el siguiente GPF cuando falla register_ftrace_direct: [ ] fallo de protecci\u00f3n general, probablemente para direcci\u00f3n no can\u00f3nica \\\\ 0x200000000000010: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI [...] [ ] RIP: 0010:ftrace_find_rec_direct+0x53/0x70 [ ] Code: 48 c1 e0 03 48 03 42 08 48 8b 10 31 c0 48 85 d2 74 [...] [ ] RSP: 0018:ffffc9000138bc10 EFLAGS: 00010206 [ ] RAX: 0000000000000000 RBX: ffffffff813e0df0 RCX: 000000000000003b [ ] RDX: 0200000000000000 RSI: 000000000000000c RDI: ffffffff813e0df0 [ ] RBP: ffffffffa00a3000 R08: ffffffff81180ce0 R09: 0000000000000001 [ ] R10: ffffc9000138bc18 R11: 0000000000000001 R12: ffffffff813e0df0 [ ] R13: ffffffff813e0df0 R14: ffff888171b56400 R15: 0000000000000000 [ ] FS: 00007fa9420c7780(0000) GS:ffff888ff6a00000(0000) knlGS:000000000 [ ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ ] CR2: 000000000770d000 CR3: 0000000107d50003 CR4: 0000000000370ee0 [ ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ ] Call Trace: [ ]  [ ] register_ftrace_direct+0x54/0x290 [ ] ? render_sigset_t+0xa0/0xa0 [ ] bpf_trampoline_update+0x3f5/0x4a0 [ ] ? 0xffffffffa00a3000 [ ] bpf_trampoline_link_prog+0xa9/0x140 [ ] bpf_tracing_prog_attach+0x1dc/0x450 [ ] bpf_raw_tracepoint_open+0x9a/0x1e0 [ ] ? find_held_lock+0x2d/0x90 [ ] ? lock_release+0x150/0x430 [ ] __sys_bpf+0xbd6/0x2700 [ ] ? lock_is_held_type+0xd8/0x130 [ ] __x64_sys_bpf+0x1c/0x20 [ ] do_syscall_64+0x3a/0x80 [ ] entry_SYSCALL_64_after_hwframe+0x44/0xae [ ] RIP: 0033:0x7fa9421defa9 [ ] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 9 f8 [...] [ ] RSP: 002b:00007ffed743bd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ ] RAX: ffffffffffffffda RBX: 00000000069d2480 RCX: 00007fa9421defa9 [ ] RDX: 0000000000000078 RSI: 00007ffed743bd80 RDI: 0000000000000011 [ ] RBP: 00007ffed743be00 R08: 0000000000bb7270 R09: 0000000000000000 [ ] R10: 00000000069da210 R11: 0000000000000246 R12: 0000000000000001 [ ] R13: 00007ffed743c4b0 R14: 00000000069d2480 R15: 0000000000000001 [ ]  [ ] Modules linked in: klp_vm(OK) [ ] ---[ end trace 0000000000000000 ]--- One way to trigger this is: 1. load a livepatch that patches kernel function xxx; 2. run bpftrace -e \u0027kfunc:xxx {}\u0027, esto fallar\u00e1 (esperado por ahora); 3. repetir #2 =\u0026gt; gpf. Esto se debe a que la entrada se agrega a direct_functions, pero no se elimina. Solucione esto eliminando la entrada de direct_functions cuando register_ftrace_direct falle. Tambi\u00e9n elimine el \u00faltimo espacio final de ftrace.c, para que ya no tengamos que preocuparnos por eso.\"}],\"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}]},\"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\":\"5.5\",\"versionEndExcluding\":\"5.10.121\",\"matchCriteriaId\":\"34ACD872-E5BC-401C-93D5-B357A62426E0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.46\",\"matchCriteriaId\":\"20D41697-0E8B-4B7D-8842-F17BF2AA21E1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"5.17.14\",\"matchCriteriaId\":\"15E2DD33-2255-4B76-9C15-04FF8CBAB252\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.18\",\"versionEndExcluding\":\"5.18.3\",\"matchCriteriaId\":\"8E122216-2E9E-4B3E-B7B8-D575A45BA3C2\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/7d54c15cb89a29a5f59e5ffc9ee62e6591769ef1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/805e87af946d8d2954171361e64d143ff37a441b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/82c888e51c2176a06f8b4541cf748ee81aac6e7e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a0392833a178cf109a57c2a9d4d531bdfc6cd98f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cae2978d6907ef2c08b9b15f704e783f7c284713\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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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.