CVE-2022-50746
Published: Dec 24, 2025
Modified: May 11, 2026
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 02827e1796b33f1794966f5c3101f8da2dfa9c1d - < dc8b6bd587b13b85aff6e9d36cdfcd3f955cac9eaffected 02827e1796b33f1794966f5c3101f8da2dfa9c1d - < 40c73b2ea9611b5388807be406f30f5e4e1162daaffected 02827e1796b33f1794966f5c3101f8da2dfa9c1d - < c505feba4c0d76084e56ec498ce819f02a7043ae |
Linux | Linux | affected 4.19unaffected 0 - < 4.19unaffected 6.0.16 - <= 6.0.*unaffected 6.1.2 - <= 6.1.*unaffected 6.2 - <= * |
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