CVE-2024-57940

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)

CWE

CWE-835

Published

2025-01-21

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17
• https://git.kernel.org/stable/c/31beabd0f47f8c3ed9965ba861c9e5b252d4920a
• https://git.kernel.org/stable/c/d8cfbb8723bd3d3222f360227a1cc15227189ca6
• https://git.kernel.org/stable/c/d9ea94f5cd117d56e573696d0045ab3044185a15
• https://git.kernel.org/stable/c/dc1d7afceb982e8f666e70a582e6b5aa806de063

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