Bug 2467137 (CVE-2026-43166) - CVE-2026-43166 kernel: erofs: fix interlaced plain identification for encoded extents
Summary: CVE-2026-43166 kernel: erofs: fix interlaced plain identification for encoded...
Keywords:
Status: NEW
Alias: CVE-2026-43166
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-06 13:06 UTC by OSIDB Bzimport
Modified: 2026-05-06 19:43 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-05-06 13:06:20 UTC
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().


Note You need to log in before you can comment on or make changes to this bug.