CVE-2026-43166

EUVD-2026-27729
In the Linux kernel, the following vulnerability has been resolved:

erofs: fix interlaced plain identification for encoded extents

Only plain data whose start position and on-disk physical length are
both aligned to the block size should be classified as interlaced
plain extents. Otherwise, it must be treated as shifted plain extents.

This issue was found by syzbot using a crafted compressed image
containing plain extents with unaligned physical lengths, which can
cause OOB read in z_erofs_transform_plain().
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.1 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 4%
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Debian Releases
Debian Product
Codename
linux
bookworm
6.1.159-1
fixed
bookworm (security)
6.1.170-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.251-4
fixed
forky
6.19.14-1
fixed
sid
7.0.4-1
fixed
trixie
6.12.73-1
fixed
trixie (security)
6.12.86-1
fixed