CVE-2026-46070
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | b4c625c67362b3940f619c1a836b4e8329106658 < c96c6f01d84b5c67db1bf1cc8591c0b7146826fc | affected |
| Linux | Linux | b4c625c67362b3940f619c1a836b4e8329106658 < ef4851d8324fd978ca1ff9ec76a275438f887743 | affected |
| Linux | Linux | b4c625c67362b3940f619c1a836b4e8329106658 < 28d3ff7109c66e99dc1b7cddacb5c760849620ef | affected |
| Linux | Linux | b4c625c67362b3940f619c1a836b4e8329106658 < 33698bd1b2db9764a29df7751533d33967ff5c98 | affected |
| Linux | Linux | b4c625c67362b3940f619c1a836b4e8329106658 < c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e | affected |
| Linux | Linux | b4c625c67362b3940f619c1a836b4e8329106658 < 73ce72edd113374801045924d4417199963f73a3 | affected |
| Linux | Linux | b4c625c67362b3940f619c1a836b4e8329106658 < 406aa86394ead347c47428fb51b6359bdaa2257d | affected |
| Linux | Linux | b4c625c67362b3940f619c1a836b4e8329106658 < b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9 | affected |
| Linux | Linux | 4.10 | affected |
| Linux | Linux | 0 < 4.10 | unaffected |
| Linux | Linux | 5.10.258 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.140 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.86 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.27 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.4 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/c96c6f01d84b5c67db1bf1cc8591c0b7146826fc
- https://git.kernel.org/stable/c/ef4851d8324fd978ca1ff9ec76a275438f887743
- https://git.kernel.org/stable/c/28d3ff7109c66e99dc1b7cddacb5c760849620ef
- https://git.kernel.org/stable/c/33698bd1b2db9764a29df7751533d33967ff5c98
- https://git.kernel.org/stable/c/c3a1cf78bd1bbb51b2cc5189b4743056553c1e0e
- https://git.kernel.org/stable/c/73ce72edd113374801045924d4417199963f73a3
- https://git.kernel.org/stable/c/406aa86394ead347c47428fb51b6359bdaa2257d
- https://git.kernel.org/stable/c/b0cc3ae97e893bf54bbce447f4e9fd2e0b88bff9
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