CVE-2024-57940
exfat: fix the infinite loop in exfat_readdir()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jan 21, 2025 |
| Last Updated | May 12, 2026 |
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Affected Versions
Linux / Linux
ca06197382bde0a3bc20215595d1c9ce20c6e341 < d8cfbb8723bd3d3222f360227a1cc15227189ca6 ca06197382bde0a3bc20215595d1c9ce20c6e341 < 28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17 ca06197382bde0a3bc20215595d1c9ce20c6e341 < 31beabd0f47f8c3ed9965ba861c9e5b252d4920a ca06197382bde0a3bc20215595d1c9ce20c6e341 < dc1d7afceb982e8f666e70a582e6b5aa806de063 ca06197382bde0a3bc20215595d1c9ce20c6e341 < d9ea94f5cd117d56e573696d0045ab3044185a15 ca06197382bde0a3bc20215595d1c9ce20c6e341 < fee873761bd978d077d8c55334b4966ac4cb7b59
Linux / Linux
5.7
References
git.kernel.org: https://git.kernel.org/stable/c/d8cfbb8723bd3d3222f360227a1cc15227189ca6 git.kernel.org: https://git.kernel.org/stable/c/28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17 git.kernel.org: https://git.kernel.org/stable/c/31beabd0f47f8c3ed9965ba861c9e5b252d4920a git.kernel.org: https://git.kernel.org/stable/c/dc1d7afceb982e8f666e70a582e6b5aa806de063 git.kernel.org: https://git.kernel.org/stable/c/d9ea94f5cd117d56e573696d0045ab3044185a15 git.kernel.org: https://git.kernel.org/stable/c/fee873761bd978d077d8c55334b4966ac4cb7b59 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-265688.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-503939.html