CVE-2022-49169
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
f2fs: use spin_lock to avoid hang
Detalles técnicos trazas, registros y código del informe original
[14696.634553] task:cat state:D stack: 0 pid:1613738 ppid:1613735 flags:0x00000004 [14696.638285] Call Trace: [14696.639038] <TASK> [14696.640032] __schedule+0x302/0x930 [14696.640969] schedule+0x58/0xd0 [14696.641799] schedule_preempt_disabled+0x18/0x30 [14696.642890] __mutex_lock.constprop.0+0x2fb/0x4f0 [14696.644035] ? mod_objcg_state+0x10c/0x310 [14696.645040] ? obj_cgroup_charge+0xe1/0x170 [14696.646067] __mutex_lock_slowpath+0x13/0x20 [14696.647126] mutex_lock+0x34/0x40 [14696.648070] stat_show+0x25/0x17c0 [f2fs] [14696.649218] seq_read_iter+0x120/0x4b0 [14696.650289] ? aa_file_perm+0x12a/0x500 [14696.651357] ? lru_cache_add+0x1c/0x20 [14696.652470] seq_read+0xfd/0x140 [14696.653445] full_proxy_read+0x5c/0x80 [14696.654535] vfs_read+0xa0/0x1a0 [14696.655497] ksys_read+0x67/0xe0 [14696.656502] __x64_sys_read+0x1a/0x20 [14696.657580] do_syscall_64+0x3b/0xc0 [14696.658671] entry_SYSCALL_64_after_hwframe+0x44/0xae [14696.660068] RIP: 0033:0x7efe39df1cb2 [14696.661133] RSP: 002b:00007ffc8badd948 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [14696.662958] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007efe39df1cb2 [14696.664757] RDX: 0000000000020000 RSI: 00007efe399df000 RDI: 0000000000000003 [14696.666542] RBP: 00007efe399df000 R08: 00007efe399de010 R09: 00007efe399de010 [14696.668363] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000 [14696.670155] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000 [14696.671965] </TASK> [14696.672826] task:umount state:D stack: 0 pid:1614985 ppid:1614984 flags:0x00004000 [14696.674930] Call Trace: [14696.675903] <TASK> [14696.676780] __schedule+0x302/0x930 [14696.677927] schedule+0x58/0xd0 [14696.679019] schedule_preempt_disabled+0x18/0x30 [14696.680412] __mutex_lock.constprop.0+0x2fb/0x4f0 [14696.681783] ? destroy_inode+0x65/0x80 [14696.683006] __mutex_lock_slowpath+0x13/0x20 [14696.684305] mutex_lock+0x34/0x40 [14696.685442] f2fs_destroy_stats+0x1e/0x60 [f2fs] [14696.686803] f2fs_put_super+0x158/0x390 [f2fs] [14696.688238] generic_shutdown_super+0x7a/0x120 [14696.689621] kill_block_super+0x27/0x50 [14696.690894] kill_f2fs_super+0x7f/0x100 [f2fs] [14696.692311] deactivate_locked_super+0x35/0xa0 [14696.693698] deactivate_super+0x40/0x50 [14696.694985] cleanup_mnt+0x139/0x190 [14696.696209] __cleanup_mnt+0x12/0x20 [14696.697390] task_work_run+0x64/0xa0 [14696.698587] exit_to_user_mode_prepare+0x1b7/0x1c0 [14696.700053] syscall_exit_to_user_mode+0x27/0x50 [14696.701418] do_syscall_64+0x48/0xc0 [14696.702630] entry_SYSCALL_64_after_hwframe+0x44/0xae
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.26%
- Percentil entre todas las CVEs puntuadas: 16
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2022-49169",
"cveTags": [],
"metrics": {
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 5.5,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1.8
}
]
},
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "66af62ce7588736ae65edfdb1c0df597775c4d21",
"lessThan": "2eff60346e7ae1a24cd868b8fdcf58e946e7dde1",
"versionType": "git"
},
{
"status": "affected",
"version": "66af62ce7588736ae65edfdb1c0df597775c4d21",
"lessThan": "738886004bd2885ac2db0bc63b4874aa471ca87e",
"versionType": "git"
},
{
"status": "affected",
"version": "66af62ce7588736ae65edfdb1c0df597775c4d21",
"lessThan": "ec4187d45cc1c2d69fffeee5fa6aa4cb62477cfb",
"versionType": "git"
},
{
"status": "affected",
"version": "66af62ce7588736ae65edfdb1c0df597775c4d21",
"lessThan": "98237fcda4a24e67b0a4498c17d5aa4ad4537bc7",
"versionType": "git"
}
],
"programFiles": [
"fs/f2fs/debug.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.33",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "5.16.19",
"versionType": "semver",
"lessThanOrEqual": "5.16.*"
},
{
"status": "unaffected",
"version": "5.17.2",
"versionType": "semver",
"lessThanOrEqual": "5.17.*"
},
{
"status": "unaffected",
"version": "5.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/f2fs/debug.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2025-02-26T07:00:54.017",
"references": [
{
"url": "https://git.kernel.org/stable/c/2eff60346e7ae1a24cd868b8fdcf58e946e7dde1",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/738886004bd2885ac2db0bc63b4874aa471ca87e",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/98237fcda4a24e67b0a4498c17d5aa4ad4537bc7",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/ec4187d45cc1c2d69fffeee5fa6aa4cb62477cfb",
"tags": [
"Patch"
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nf2fs: use spin_lock to avoid hang\n\n[14696.634553] task:cat state:D stack: 0 pid:1613738 ppid:1613735 flags:0x00000004\n[14696.638285] Call Trace:\n[14696.639038] <TASK>\n[14696.640032] __schedule+0x302/0x930\n[14696.640969] schedule+0x58/0xd0\n[14696.641799] schedule_preempt_disabled+0x18/0x30\n[14696.642890] __mutex_lock.constprop.0+0x2fb/0x4f0\n[14696.644035] ? mod_objcg_state+0x10c/0x310\n[14696.645040] ? obj_cgroup_charge+0xe1/0x170\n[14696.646067] __mutex_lock_slowpath+0x13/0x20\n[14696.647126] mutex_lock+0x34/0x40\n[14696.648070] stat_show+0x25/0x17c0 [f2fs]\n[14696.649218] seq_read_iter+0x120/0x4b0\n[14696.650289] ? aa_file_perm+0x12a/0x500\n[14696.651357] ? lru_cache_add+0x1c/0x20\n[14696.652470] seq_read+0xfd/0x140\n[14696.653445] full_proxy_read+0x5c/0x80\n[14696.654535] vfs_read+0xa0/0x1a0\n[14696.655497] ksys_read+0x67/0xe0\n[14696.656502] __x64_sys_read+0x1a/0x20\n[14696.657580] do_syscall_64+0x3b/0xc0\n[14696.658671] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[14696.660068] RIP: 0033:0x7efe39df1cb2\n[14696.661133] RSP: 002b:00007ffc8badd948 EFLAGS: 00000246 ORIG_RAX: 0000000000000000\n[14696.662958] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007efe39df1cb2\n[14696.664757] RDX: 0000000000020000 RSI: 00007efe399df000 RDI: 0000000000000003\n[14696.666542] RBP: 00007efe399df000 R08: 00007efe399de010 R09: 00007efe399de010\n[14696.668363] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000\n[14696.670155] R13: 0000000000000003 R14: 0000000000020000 R15: 0000000000020000\n[14696.671965] </TASK>\n[14696.672826] task:umount state:D stack: 0 pid:1614985 ppid:1614984 flags:0x00004000\n[14696.674930] Call Trace:\n[14696.675903] <TASK>\n[14696.676780] __schedule+0x302/0x930\n[14696.677927] schedule+0x58/0xd0\n[14696.679019] schedule_preempt_disabled+0x18/0x30\n[14696.680412] __mutex_lock.constprop.0+0x2fb/0x4f0\n[14696.681783] ? destroy_inode+0x65/0x80\n[14696.683006] __mutex_lock_slowpath+0x13/0x20\n[14696.684305] mutex_lock+0x34/0x40\n[14696.685442] f2fs_destroy_stats+0x1e/0x60 [f2fs]\n[14696.686803] f2fs_put_super+0x158/0x390 [f2fs]\n[14696.688238] generic_shutdown_super+0x7a/0x120\n[14696.689621] kill_block_super+0x27/0x50\n[14696.690894] kill_f2fs_super+0x7f/0x100 [f2fs]\n[14696.692311] deactivate_locked_super+0x35/0xa0\n[14696.693698] deactivate_super+0x40/0x50\n[14696.694985] cleanup_mnt+0x139/0x190\n[14696.696209] __cleanup_mnt+0x12/0x20\n[14696.697390] task_work_run+0x64/0xa0\n[14696.698587] exit_to_user_mode_prepare+0x1b7/0x1c0\n[14696.700053] syscall_exit_to_user_mode+0x27/0x50\n[14696.701418] do_syscall_64+0x48/0xc0\n[14696.702630] entry_SYSCALL_64_after_hwframe+0x44/0xae"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: usar spin_lock para evitar que se cuelgue [14696.634553] task:cat state:D stack: 0 pid:1613738 ppid:1613735 flags:0x00000004 [14696.638285] Seguimiento de llamadas: [14696.639038] [14696.640032] __schedule+0x302/0x930 [14696.640969] schedule+0x58/0xd0 [14696.641799] schedule_preempt_disabled+0x18/0x30 [14696.642890] __mutex_lock.constprop.0+0x2fb/0x4f0 [14696.644035] ? mod_objcg_state+0x10c/0x310 [14696.645040] ? obj_cgroup_charge+0xe1/0x170 [14696.646067] __mutex_lock_slowpath+0x13/0x20 [14696.647126] mutex_lock+0x34/0x40 [14696.648070] stat_show+0x25/0x17c0 [f2fs] [14696.649218] seq_read_iter+0x120/0x4b0 [14696.650289] ? aa_file_perm+0x12a/0x500 [14696.651357] ? lru_cache_add+0x1c/0x20 [14696.652470] seq_read+0xfd/0x140 [14696.653445] full_proxy_read+0x5c/0x80 [14696.654535] vfs_read+0xa0/0x1a0 [14696.655497] ksys_read+0x67/0xe0 [14696.656502] __x64_sys_read+0x1a/0x20 [14696.657580] do_syscall_64+0x3b/0xc0 [14696.658671] entry_SYSCALL_64_after_hwframe+0x44/0xae [14696.660068] RIP: 0033:0x7efe39df1cb2 [14696.661133] RSP: 002b:00007ffc8badd948 EFLAGS: 00000246 ORIG_RAX: 000000000000000 [14696.662958] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007efe39df1cb2 [14696.664757] RDX: 0000000000020000 RSI: 00007efe399df000 RDI: 0000000000000003 [14696.666542] RBP: 00007efe399df000 R08: 00007efe399de010 R09: 00007efe399de010 [14696.668363] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000 [14696.670155] R13: 000000000000003 R14: 0000000000020000 R15: 0000000000020000 [14696.671965] [14696.672826] tarea: desmontaje estado: D pila: 0 pid: 1614985 ppid: 1614984 indicadores: 0x00004000 [14696.674930] Seguimiento de llamadas: [14696.675903] [14696.676780] __schedule+0x302/0x930 [14696.677927] schedule+0x58/0xd0 [14696.679019] schedule_preempt_disabled+0x18/0x30 [14696.680412] __mutex_lock.constprop.0+0x2fb/0x4f0 [14696.681783] ? destroy_inode+0x65/0x80 [14696.683006] __mutex_lock_slowpath+0x13/0x20 [14696.684305] mutex_lock+0x34/0x40 [14696.685442] f2fs_destroy_stats+0x1e/0x60 [f2fs] [14696.686803] f2fs_put_super+0x158/0x390 [f2fs] [14696.688238] generic_shutdown_super+0x7a/0x120 [14696.689621] kill_block_super+0x27/0x50 [14696.690894] kill_f2fs_super+0x7f/0x100 [f2fs] [14696.692311] deactivate_locked_super+0x35/0xa0 [14696.693698] deactivate_super+0x40/0x50 [14696.694985] cleanup_mnt+0x139/0x190 [14696.696209] __cleanup_mnt+0x12/0x20 [14696.697390] task_work_run+0x64/0xa0 [14696.698587] exit_to_user_mode_prepare+0x1b7/0x1c0 [14696.700053] syscall_exit_to_user_mode+0x27/0x50 [14696.701418] do_syscall_64+0x48/0xc0 [14696.702630] entry_SYSCALL_64_after_hwframe+0x44/0xae"
}
],
"lastModified": "2026-08-13T00:17:29.890",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4B095C6F-EBED-4B27-8A92-86970EC09BA6",
"versionEndExcluding": "5.15.33",
"versionStartIncluding": "3.8"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "20C43679-0439-405A-B97F-685BEE50613B",
"versionEndExcluding": "5.16.19",
"versionStartIncluding": "5.16"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF",
"versionEndExcluding": "5.17.2",
"versionStartIncluding": "5.17"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}