fkie_cve-2024-53234
Vulnerability from fkie_nvd
Published
2024-12-27 14:15
Modified
2025-01-23 17:15
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf
Impacted products
Vendor Product Version


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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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\u0027t 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 \u003e 14` is illegal for compact indexes, error out too."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: erofs: gestiona lclusters NONHEAD !delta[1] con gracia syzbot inform\u00f3 una ADVERTENCIA en iomap_iter_done: iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80 ioctl_fiemap fs/ioctl.c:220 [en l\u00ednea] Generalmente, los lclusters NONHEAD no tendr\u00e1n delta[1]==0, excepto para im\u00e1genes 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). Tr\u00e1telo como delta[1]=1 para solucionar estas versiones heredadas de mkfs. `lclusterbits \u0026gt; 14` es ilegal para \u00edndices compactos, tambi\u00e9n genera un error."
    }
  ],
  "id": "CVE-2024-53234",
  "lastModified": "2025-01-23T17:15:15.100",
  "metrics": {},
  "published": "2024-12-27T14:15:31.783",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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