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Loop with Unreachable Exit Condition ('Infinite Loop') The advisory has been revoked - it doesn't affect any version of package kernel-debug-modules-internal  (opens in a new tab)

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EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELDEBUGMODULESINTERNAL-8665992
  • published29 Jan 2025
  • disclosed21 Jan 2025
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Introduced: 21 Jan 2025

CVE-2024-57940  (opens in a new tab)
CWE-835  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules-internal package and not the kernel-debug-modules-internal package as distributed by RHEL.

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.