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CVE-2022-49343
published 2025-02-26

CVE-2022-49343: In the Linux kernel, the following vulnerability has been resolved: ext4: avoid cycles in directory h-tree A maliciously corrupted filesystem can contain…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.29%
21.6th percentile
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

21 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.18.5-1 (bookworm)linux 5.18.5-1 (bookworm)
linuxlinux——
linuxlinux>= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 24b8206fec1db21d7e82f21f0b2ff5e5672cf5b324b8206fec1db21d7e82f21f0b2ff5e5672cf5b3
linuxlinux>= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0b3ad9ff6f06c1dc6abf7437691c88ca3d6da3ac0
linuxlinux>= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < e157c8f87e8fac112d6c955e69a60cdb9bc80a60e157c8f87e8fac112d6c955e69a60cdb9bc80a60
linuxlinux>= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < ff4cafa51762da3824881a9000ca421d4b78b138ff4cafa51762da3824881a9000ca421d4b78b138
linuxlinux>= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc3a3ce941645407cd0b0b7f01ad9e2ea3770f46cc
linuxlinux>= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < d5a16a6df2c16eaf4de04948553ef0089dee463fd5a16a6df2c16eaf4de04948553ef0089dee463f
linuxlinux>= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 6084240bfc44bf265ab6ae7d96980469b05be0f16084240bfc44bf265ab6ae7d96980469b05be0f1
linuxlinux>= ac27a0ec112a089f1a5102bc8dffc79c8c815571 < 3ba733f879c2a88910744647e41edeefbc0d92b23ba733f879c2a88910744647e41edeefbc0d92b2
linuxlinux_kernel< 4.14.2834.14.283
linuxlinux_kernel>= 0 < 5.10.127-15.10.127-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 0 < 5.18.5-15.18.5-1
linuxlinux_kernel>= 4.15 < 4.19.2474.19.247
linuxlinux_kernel>= 4.20 < 5.4.1985.4.198
linuxlinux_kernel>= 5.11 < 5.15.465.15.46
linuxlinux_kernel>= 5.16 < 5.17.145.17.14
linuxlinux_kernel>= 5.18 < 5.18.35.18.3
linuxlinux_kernel>= 5.5 < 5.10.1215.10.121

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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