CVE-2024-57940 (GCVE-0-2024-57940)

Vulnerability from cvelistv5 – Published: 2025-01-21 12:18 – Updated: 2026-05-12 12:01
VLAI?
Title
exfat: fix the infinite loop in exfat_readdir()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < d8cfbb8723bd3d3222f360227a1cc15227189ca6 (git)
Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < 28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17 (git)
Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < 31beabd0f47f8c3ed9965ba861c9e5b252d4920a (git)
Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < dc1d7afceb982e8f666e70a582e6b5aa806de063 (git)
Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < d9ea94f5cd117d56e573696d0045ab3044185a15 (git)
Affected: ca06197382bde0a3bc20215595d1c9ce20c6e341 , < fee873761bd978d077d8c55334b4966ac4cb7b59 (git)
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Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.234 , ≤ 5.10.* (semver)
Unaffected: 5.15.177 , ≤ 5.15.* (semver)
Unaffected: 6.1.125 , ≤ 6.1.* (semver)
Unaffected: 6.6.72 , ≤ 6.6.* (semver)
Unaffected: 6.12.10 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
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}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.