CVE-2024-57940: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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

• Linux Linux Kernel: from 5.7, before 6.1.125 (fixed in 6.1.125); from 6.2, before 6.6.72 (fixed in 6.6.72); from 6.7, before 6.12.10 (fixed in 6.12.10); version 6.13 only

Published 2025-01-21. Last modified 2026-06-17.