CVE-2026-43166

Source
https://cve.org/CVERecord?id=CVE-2026-43166
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43166.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-43166
Downstream
Published
2026-05-06T11:27:43.242Z
Modified
2026-07-15T01:48:54.428604311Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H CVSS Calculator
Summary
erofs: fix interlaced plain identification for encoded extents
Details

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 zerofstransform_plain().

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43166.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
1d191b4ca51d73699cb127386b95ac152af2b930
Fixed
9d5a97bc71ed5783687705c708454c4453aa91d1
Fixed
d3790f26d38606f020212486359b84632c19d08b
Fixed
4a2d046e4b13202a6301a993961f5b30ae4d7119

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43166.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.15.0
Fixed
6.18.16
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
6.19.6

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43166.json"