Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: erofs: validate the extent length for uncompressed pclusters syzkaller reported a KASAN use-after-free: https://syzkaller.appspot.com/bug?extid=2ae90e873e97f1faf6f2 The referenced fuzzed image actually has two issues: - m_pa == 0 as a non-inlined pcluster; - The logical length is longer than its physical length. The first issue has already been addressed. This patch addresses the second issue by checking the extent length validity.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 02827e1796b33f1794966f5c3101f8da2dfa9c1d before dc8b6bd587b13b85aff6e9d36cdfcd3f955cac9e; affected 02827e1796b33f1794966f5c3101f8da2dfa9c1d before 40c73b2ea9611b5388807be406f30f5e4e1162da; affected 02827e1796b33f1794966f5c3101f8da2dfa9c1d before c505feba4c0d76084e56ec498ce819f02a7043ae |
| Linux / Linux | affected 4.19; unaffected 0 before 4.19; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/dc8b6bd587b13b85aff6e9d36cdfcd3f955cac9e
- https://git.kernel.org/stable/c/40c73b2ea9611b5388807be406f30f5e4e1162da
- https://git.kernel.org/stable/c/c505feba4c0d76084e56ec498ce819f02a7043ae
ADP enrichment
No English description supplied.
No references supplied.