CVE-2026-43166
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().
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 6.19.6-1 |
| debian | sid | fixed | 6.19.6-1 |
| debian | trixie | fixed | 0 |
| linux-kernel | affected | 6.18.16 | |
| linux-kernel | 7.0 | affected | |
References
- https://git.kernel.org/stable/c/4a2d046e4b13202a6301a993961f5b30ae4d7119
- https://git.kernel.org/stable/c/9d5a97bc71ed5783687705c708454c4453aa91d1
- https://git.kernel.org/stable/c/d3790f26d38606f020212486359b84632c19d08b
- https://www.suse.com/security/cve/CVE-2026-43166.html
- https://security-tracker.debian.org/tracker/CVE-2026-43166
CWEs
CWE-787
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.