CVE-2024-53234
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
erofs: handle NONHEAD !delta[1] lclusters gracefully
syzbot reported a WARNING in iomap_iter_done: iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80 ioctl_fiemap fs/ioctl.c:220 [inline]
Generally, NONHEAD lclusters won't have delta[1]==0, except for crafted images and filesystems created by pre-1.0 mkfs versions.
Previously, it would immediately bail out if delta[1]==0, which led to inadequate decompressed lengths (thus FIEMAP is impacted). Treat it as delta[1]=1 to work around these legacy mkfs versions.
`lclusterbits > 14` is illegal for compact indexes, error out too.
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: 0.21%
- Percentil entre todas las CVEs puntuadas: 10
- Fecha de la puntuación: 6/10/2026
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
- https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c
- https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5
- https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba
- https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655
- https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: handle NONHEAD !delta[1] lclusters gracefully\n\nsyzbot reported a WARNING in iomap_iter_done:\n iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80\n ioctl_fiemap fs/ioctl.c:220 [inline]\n\nGenerally, NONHEAD lclusters won't have delta[1]==0, except for crafted\nimages and filesystems created by pre-1.0 mkfs versions.\n\nPreviously, it would immediately bail out if delta[1]==0, which led to\ninadequate decompressed lengths (thus FIEMAP is impacted). Treat it as\ndelta[1]=1 to work around these legacy mkfs versions.\n\n`lclusterbits > 14` is illegal for compact indexes, error out too."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: erofs: gestiona lclusters NONHEAD !delta[1] con gracia syzbot informó una ADVERTENCIA en iomap_iter_done: iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80 ioctl_fiemap fs/ioctl.c:220 [en línea] Generalmente, los lclusters NONHEAD no tendrán delta[1]==0, excepto para imágenes y sistemas de archivos creados por versiones de mkfs anteriores a la 1.0. Anteriormente, se cancelaba inmediatamente si delta[1]==0, lo que provocaba longitudes descomprimidas inadecuadas (por lo tanto, FIEMAP se ve afectado). Trátelo como delta[1]=1 para solucionar estas versiones heredadas de mkfs. `lclusterbits > 14` es ilegal para índices compactos, también genera un error."
}
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"lastModified": "2026-06-17T08:08:39.880",
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