CVE-2026-43166

HIGH

erofs: fix interlaced plain identification for encoded extents

Title source: cna
STIX 2.1

Description

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().

Scores

CVSS v3 7.1
EPSS 0.0001
EPSS Percentile 2.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Details

CWE
CWE-787
Status published
Products (10)
Linux/Linux < 6.15
Linux/Linux 1d191b4ca51d73699cb127386b95ac152af2b930 - 4a2d046e4b13202a6301a993961f5b30ae4d7119
Linux/Linux 1d191b4ca51d73699cb127386b95ac152af2b930 - 9d5a97bc71ed5783687705c708454c4453aa91d1
Linux/Linux 1d191b4ca51d73699cb127386b95ac152af2b930 - d3790f26d38606f020212486359b84632c19d08b
Linux/Linux 6.15
Linux/Linux 6.18.16 - 6.18.*
Linux/Linux 6.19.6 - 6.19.*
Linux/Linux 7.0
linux/linux_kernel 7.0 rc1
linux/linux_kernel 6.15 - 6.18.16
Published May 06, 2026
Tracked Since May 06, 2026