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
Base Score
CVSS 3.x
EPSS Score
Percentile: 3%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.15 ≤
𝑥
< 6.18.16
linuxlinux_kernel
6.19 ≤
𝑥
< 6.19.6
linuxlinux_kernel
7.0:rc1
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.170-3
fixed
bookworm (security)
6.1.174-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.257-1
fixed
forky
7.0.12-2
fixed
sid
7.0.13-1
fixed
trixie
6.12.86-1
fixed
trixie (security)
6.12.94-1
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
bpftool6.18
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
bpftool6.18-debuginfo
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel-livepatch-6.18.16-18.222
Amazon Linux 2023
1:1.0-0.amzn2023
fixed
kernel6.18
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-debuginfo
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-debuginfo-common-aarch64
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-debuginfo-common-x86_64
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-devel
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-headers
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-libbpf
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-libbpf-debuginfo
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-libbpf-devel
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-libbpf-static
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-modules-extra
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-modules-extra-common
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-tools
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-tools-debuginfo
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
kernel6.18-tools-devel
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
perf6.18
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
perf6.18-debuginfo
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
python3-perf6.18
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed
python3-perf6.18-debuginfo
Amazon Linux 2023
1:6.18.16-18.222.amzn2023
fixed