CVE-2022-49343
Published: Feb 26, 2025
Modified: May 11, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid cycles in directory h-tree A maliciously corrupted filesystem can contain cycles in the h-tree stored inside a directory. That can easily lead to the kernel corrupting tree nodes that were already verified under its hands while doing a node split and consequently accessing unallocated memory. Fix the problem by verifying traversed block numbers are unique.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 - < 24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 - < b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 - < e157c8f87e8fac112d6c955e69a60cdb9bc80a60affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 - < ff4cafa51762da3824881a9000ca421d4b78b138affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 - < 3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc+3 more versions |
Linux | Linux | affected 2.6.19unaffected 0 - < 2.6.19unaffected 4.14.283 - <= 4.14.*unaffected 4.19.247 - <= 4.19.*unaffected 5.4.198 - <= 5.4.*+5 more versions |
References
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