Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.7, < 6.1.125 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17
- https://git.kernel.org/stable/c/31beabd0f47f8c3ed9965ba861c9e5b252d4920aPatch
- https://git.kernel.org/stable/c/d8cfbb8723bd3d3222f360227a1cc15227189ca6
- https://git.kernel.org/stable/c/d9ea94f5cd117d56e573696d0045ab3044185a15Patch
- https://git.kernel.org/stable/c/dc1d7afceb982e8f666e70a582e6b5aa806de063Patch
- https://git.kernel.org/stable/c/fee873761bd978d077d8c55334b4966ac4cb7b59Patch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-503939.html
FAQ
What is CVE-2024-57940?
CVE-2024-57940 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 clust...
How severe is CVE-2024-57940?
CVE-2024-57940 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-57940?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.