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.
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
Product
CWE
Yayın Tarihi
2025-01-21 13:15:08
Güncelleme
2025-11-03 21:18:45
Source Identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
KEV Date Added
-
Kategoriler
Referanslar
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
https://git.kernel.org/stable/c/fee873761bd978d077d8c55334b4966ac4cb7b59
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html