Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 before 24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 before b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 before e157c8f87e8fac112d6c955e69a60cdb9bc80a60; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 before ff4cafa51762da3824881a9000ca421d4b78b138; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 before 3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 before d5a16a6df2c16eaf4de04948553ef0089dee463f; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 before 6084240bfc44bf265ab6ae7d96980469b05be0f1; affected ac27a0ec112a089f1a5102bc8dffc79c8c815571 before 3ba733f879c2a88910744647e41edeefbc0d92b2 |
| Linux / Linux | affected 2.6.19; unaffected 0 before 2.6.19; unaffected 4.14.283 through 4.14.*; unaffected 4.19.247 through 4.19.*; unaffected 5.4.198 through 5.4.*; unaffected 5.10.121 through 5.10.*; unaffected 5.15.46 through 5.15.*; unaffected 5.17.14 through 5.17.*; unaffected 5.18.3 through 5.18.*; unaffected 5.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/24b8206fec1db21d7e82f21f0b2ff5e5672cf5b3
- https://git.kernel.org/stable/c/b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0
- https://git.kernel.org/stable/c/e157c8f87e8fac112d6c955e69a60cdb9bc80a60
- https://git.kernel.org/stable/c/ff4cafa51762da3824881a9000ca421d4b78b138
- https://git.kernel.org/stable/c/3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc
- https://git.kernel.org/stable/c/d5a16a6df2c16eaf4de04948553ef0089dee463f
- https://git.kernel.org/stable/c/6084240bfc44bf265ab6ae7d96980469b05be0f1
- https://git.kernel.org/stable/c/3ba733f879c2a88910744647e41edeefbc0d92b2