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Description

In the Linux kernel, the following vulnerability has been resolved: md/raid5: validate payload size before accessing journal metadata r5c_recovery_analyze_meta_block() and r5l_recovery_verify_data_checksum_for_mb() iterate over payloads in a journal metadata block using on-disk payload size fields without validating them against the remaining space in the metadata block. A corrupted journal contains payload sizes extending beyond the PAGE_SIZE boundary can cause out-of-bounds reads when accessing payload fields or computing offsets. Add bounds validation for each payload type to ensure the full payload fits within meta_size before processing.

PUBLISHED Reserved 2026-05-13 | Published 2026-05-27 | Updated 2026-06-01 | Assigner Linux




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

Product status

Default status
unaffected

b4c625c67362b3940f619c1a836b4e8329106658 (git) before c96c6f01d84b5c67db1bf1cc8591c0b7146826fc
affected

b4c625c67362b3940f619c1a836b4e8329106658 (git) before ef4851d8324fd978ca1ff9ec76a275438f887743
affected

b4c625c67362b3940f619c1a836b4e8329106658 (git) before 28d3ff7109c66e99dc1b7cddacb5c760849620ef
affected

b4c625c67362b3940f619c1a836b4e8329106658 (git) before 33698bd1b2db9764a29df7751533d33967ff5c98
affected

b4c625c67362b3940f619c1a836b4e8329106658 (git) before c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e
affected

b4c625c67362b3940f619c1a836b4e8329106658 (git) before 73ce72edd113374801045924d4417199963f73a3
affected

b4c625c67362b3940f619c1a836b4e8329106658 (git) before 406aa86394ead347c47428fb51b6359bdaa2257d
affected

b4c625c67362b3940f619c1a836b4e8329106658 (git) before b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9
affected

Default status
affected

4.10
affected

Any version before 4.10
unaffected

5.10.258 (semver)
unaffected

5.15.209 (semver)
unaffected

6.1.175 (semver)
unaffected

6.6.140 (semver)
unaffected

6.12.86 (semver)
unaffected

6.18.27 (semver)
unaffected

7.0.4 (semver)
unaffected

7.1-rc1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/c96c6f01d84b5c67db1bf1cc8591c0b7146826fc

git.kernel.org/...c/ef4851d8324fd978ca1ff9ec76a275438f887743

git.kernel.org/...c/28d3ff7109c66e99dc1b7cddacb5c760849620ef

git.kernel.org/...c/33698bd1b2db9764a29df7751533d33967ff5c98

git.kernel.org/...c/c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e

git.kernel.org/...c/73ce72edd113374801045924d4417199963f73a3

git.kernel.org/...c/406aa86394ead347c47428fb51b6359bdaa2257d

git.kernel.org/...c/b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9

cve.org (CVE-2026-46070)

nvd.nist.gov (CVE-2026-46070)

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