CVE-2026-43168

ocfs2: fix reflink preserve cleanup issue

MEDIUM

5.5

CVSS Score

Published: May 6, 2026 at 11:27 AM UTC

Updated: June 17, 2026 at 10:49 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix reflink preserve cleanup issue commit c06c303832ec ("ocfs2: fix xattr array entry __counted_by error") doesn't handle all cases and the cleanup job for preserved xattr entries still has bug: - the 'last' pointer should be shifted by one unit after cleanup an array entry. - current code logic doesn't cleanup the first entry when xh_count is 1. Note, commit c06c303832ec is also a bug fix for 0fe9b66c65f3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.32 ≤ v < 5.10.2522.6.32 ≤ v < 5.15.2022.6.32 ≤ v < 6.1.1652.6.32 ≤ v < 6.12.752.6.32 ≤ v < 6.18.162.6.32 ≤ v < 6.19.62.6.32 ≤ v < 6.6.1282.6.32 ≤ v < 7.05.11 ≤ v < 5.15.2025.16 ≤ v < 6.1.1656.13 ≤ v < 6.18.166.19 ≤ v < 6.19.66.2 ≤ v < 6.6.1286.7 ≤ v < 6.12.750fe9b66c65f3ff227da45381afe7612f91e327402.6.32

Vendor states this is fixed in 02acc9f72365e50eb45a56b7dacb9114ca3b503c (fixed)

Vendor states this is fixed in 2f4daccd9d9b8b2952df7878df8c2e8ba6439398 (fixed)

Vendor states this is fixed in 3bdc3766aafb052aef4baadef455a84c1c0a059d (fixed)

Vendor states this is fixed in 5138c936c2c82c9be8883921854bc6f7e1177d8c (fixed)

Vendor states this is fixed in 8ff329353134280b203cb2bce95311cb8f7cbd8a (fixed)

Vendor states this is fixed in b2952dbeac2c3c527cb0519d5ffaeb95b062466a (fixed)

Vendor states this is fixed in bb273b68c1719c2925e05557f7e7099edb066680 (fixed)

Vendor states this is fixed in c44d86ca949cb1e5566ad14510cc26fa1a17e2d8 (fixed)

Vendor states this is fixed in 2.6.32 (unaffected)

Vendor states this is fixed in 5.10.252 (unaffected)

Vendor states this is fixed in 5.15.202 (unaffected)

Vendor states this is fixed in 6.1.165 (unaffected)