Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: exfat: fix out-of-bounds access of directory entries In the case of the directory size is greater than or equal to the cluster size, if start_clu becomes an EOF cluster(an invalid cluster) due to file system corruption, then the directory entry where ei->hint_femp.eidx hint is outside the directory, resulting in an out-of-bounds access, which may cause further file system corruption. This commit adds a check for start_clu, if it is an invalid cluster, the file or directory will be treated as empty.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 before 82dc96f0f4eec8afdde8467d21d1b6b989dbb20a; affected 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 before a0120d6463368378539ef928cf067d02372efb8c; affected 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 before 3ddd1cb2b458ff6a193bc845f408dfff217db29e; affected 1acf1a564b6034b5af1e7fb23cb98cb3bb4f6003 before 184fa506e392eb78364d9283c961217ff2c0617b |
| Linux / Linux | affected 5.7; unaffected 0 before 5.7; unaffected 6.6.160 through 6.6.*; unaffected 6.11.11 through 6.11.*; unaffected 6.12.2 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/82dc96f0f4eec8afdde8467d21d1b6b989dbb20a
- https://git.kernel.org/stable/c/a0120d6463368378539ef928cf067d02372efb8c
- https://git.kernel.org/stable/c/3ddd1cb2b458ff6a193bc845f408dfff217db29e
- https://git.kernel.org/stable/c/184fa506e392eb78364d9283c961217ff2c0617b
ADP enrichment
No English description supplied.
No references supplied.