VYPR
Medium severity5.5NVD Advisory· Published Jan 21, 2025· Updated May 12, 2026

CVE-2024-57940

CVE-2024-57940

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.

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Affected products

72

Patches

Vulnerability mechanics

References

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