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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-57940

exfat: fix the infinite loop in exfat_readdir()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: exfat: fix the infinite loop in exfat_readdir() If the file system is corrupted so that a cluster is linked to itself in the cluster chain, and there is an unused directory entry in the cluster, 'dentry' will not be incremented, causing condition 'dentry < max_dentries' unable to prevent an infinite loop. This infinite loop causes s_lock not to be released, and other tasks will hang, such as exfat_sync_fs(). This commit stops traversing the cluster chain when there is unused directory entry in the cluster to avoid this infinite loop.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • ca06197382bde0a3bc20215595d1c9ce20c6e341 to < d8cfbb8723bd3d3222f360227a1cc15227189ca6affected
  • ca06197382bde0a3bc20215595d1c9ce20c6e341 to < 28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17affected
  • ca06197382bde0a3bc20215595d1c9ce20c6e341 to < 31beabd0f47f8c3ed9965ba861c9e5b252d4920aaffected
  • ca06197382bde0a3bc20215595d1c9ce20c6e341 to < dc1d7afceb982e8f666e70a582e6b5aa806de063affected
  • ca06197382bde0a3bc20215595d1c9ce20c6e341 to < d9ea94f5cd117d56e573696d0045ab3044185a15affected
  • ca06197382bde0a3bc20215595d1c9ce20c6e341 to < fee873761bd978d077d8c55334b4966ac4cb7b59affected

Linux Linux

Default version status: affected

  • 5.7affected
  • 0 to < 5.7unaffected
  • 5.10.234 to ≤ 5.10.*unaffected
  • 5.15.177 to ≤ 5.15.*unaffected
  • 6.1.125 to ≤ 6.1.*unaffected
  • 6.6.72 to ≤ 6.6.*unaffected
  • 6.12.10 to ≤ 6.12.*unaffected
  • 6.13 to ≤ *unaffected

References