CVE-2026-98553
Estado: RecibidaSin puntuar—
Gravedad—Sin puntuar
Probabilidad de explotación0.21 %mayor que el 11 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado
En el kernel de Linux se ha resuelto la siguiente vulnerabilidad:
autofs: corrige la fuga de referencia al archivo sbi->pipe en autofs_kill_sb()
Cuando autofs_fill_super() falla antes de limpiar AUTOFS_SBI_CATATONIC (por ejemplo, cuando find_get_pid() falla con una opción de montaje pgrp no válida, o cuando se cierra un fs_context antes de montar), deactivate_locked_super() invoca autofs_kill_sb() -> autofs_catatonic_mode(sbi).
Dado que AUTOFS_SBI_CATATONIC sigue activo en sbi->flags, autofs_catatonic_mode() retorna antes de tiempo sin llamar a fput(sbi->pipe), lo que provoca una fuga permanente de la referencia a la estructura struct file de la tubería.
Leer descripción completaMostrar menos
Liberar explícitamente sbi->pipe en autofs_kill_sb() si sigue siendo distinto de NULL tras autofs_catatonic_mode().
Traducción automática del texto original de NVD (en inglés).
CVSS
NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días
- 0.21 %
- Percentil entre todas las CVEs puntuadas
- 11
- Fecha de la puntuación
- 20/10/2026
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
Referencias
Mostrar las 8 referencias
- https://git.kernel.org/stable/c/0662b1ff9b383d5a233d344e4dc518c27a17f7b8
- https://git.kernel.org/stable/c/34fa4c1c6e10507dc60e35a82cc9655666946cfd
- https://git.kernel.org/stable/c/3684e2273ba94553af3c5195a46a50214a1a96e3
- https://git.kernel.org/stable/c/4bcb371019097d0e357f097902587401c509bbc9
- https://git.kernel.org/stable/c/a58593b501b7be5ad2bc5181bfa8cd4599be257c
- https://git.kernel.org/stable/c/aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e
- https://git.kernel.org/stable/c/f1c57f5b16bbc3571bd479c290996c4d4e1fb931
- https://git.kernel.org/stable/c/fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-98553",
"cveTags": [],
"metrics": {},
"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": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
"lessThan": "3684e2273ba94553af3c5195a46a50214a1a96e3",
"versionType": "git"
},
{
"status": "affected",
"version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
"lessThan": "0662b1ff9b383d5a233d344e4dc518c27a17f7b8",
"versionType": "git"
},
{
"status": "affected",
"version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
"lessThan": "34fa4c1c6e10507dc60e35a82cc9655666946cfd",
"versionType": "git"
},
{
"status": "affected",
"version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
"lessThan": "a58593b501b7be5ad2bc5181bfa8cd4599be257c",
"versionType": "git"
},
{
"status": "affected",
"version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
"lessThan": "f1c57f5b16bbc3571bd479c290996c4d4e1fb931",
"versionType": "git"
},
{
"status": "affected",
"version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
"lessThan": "4bcb371019097d0e357f097902587401c509bbc9",
"versionType": "git"
},
{
"status": "affected",
"version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
"lessThan": "fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6",
"versionType": "git"
},
{
"status": "affected",
"version": "ebc921ca9b92a3cf304d99bd7b7f373ec78c7ed7",
"lessThan": "aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e",
"versionType": "git"
}
],
"programFiles": [
"fs/autofs/inode.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.112",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.55",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.9",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/autofs/inode.c"
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-10-18T16:17:07.370",
"references": [
{
"url": "https://git.kernel.org/stable/c/0662b1ff9b383d5a233d344e4dc518c27a17f7b8",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/34fa4c1c6e10507dc60e35a82cc9655666946cfd",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/3684e2273ba94553af3c5195a46a50214a1a96e3",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/4bcb371019097d0e357f097902587401c509bbc9",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/a58593b501b7be5ad2bc5181bfa8cd4599be257c",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/aa5e44b29ffe4eaa08cc2237fd65bc2596bc023e",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/f1c57f5b16bbc3571bd479c290996c4d4e1fb931",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/fc4fd0281ac80b5a3c5a2330f688f0f9d2a420b6",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"vulnStatus": "Received",
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nautofs: fix sbi->pipe file reference leak in autofs_kill_sb()\n\nWhen autofs_fill_super() fails before clearing AUTOFS_SBI_CATATONIC (for\nexample, when find_get_pid() fails on an invalid pgrp mount option, or\nwhen an fs_context is closed before mounting), deactivate_locked_super()\ninvokes autofs_kill_sb() -> autofs_catatonic_mode(sbi).\n\nBecause AUTOFS_SBI_CATATONIC is still set in sbi->flags,\nautofs_catatonic_mode() returns early without calling fput(sbi->pipe),\npermanently leaking the pipe struct file reference.\n\nExplicitly release sbi->pipe in autofs_kill_sb() if it is still non-NULL\nafter autofs_catatonic_mode()."
}
],
"lastModified": "2026-10-19T10:19:11.610",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}