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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().

PUBLISHED Reserved 2026-05-01 | Published 2026-05-06 | Updated 2026-05-08 | Assigner Linux




HIGH: 7.1CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Product status

Default status
unaffected

1d191b4ca51d73699cb127386b95ac152af2b930 (git) before 9d5a97bc71ed5783687705c708454c4453aa91d1
affected

1d191b4ca51d73699cb127386b95ac152af2b930 (git) before d3790f26d38606f020212486359b84632c19d08b
affected

1d191b4ca51d73699cb127386b95ac152af2b930 (git) before 4a2d046e4b13202a6301a993961f5b30ae4d7119
affected

Default status
affected

6.15
affected

Any version before 6.15
unaffected

6.18.16 (semver)
unaffected

6.19.6 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/9d5a97bc71ed5783687705c708454c4453aa91d1

git.kernel.org/...c/d3790f26d38606f020212486359b84632c19d08b

git.kernel.org/...c/4a2d046e4b13202a6301a993961f5b30ae4d7119

cve.org (CVE-2026-43166)

nvd.nist.gov (CVE-2026-43166)

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