CVE-2024-26601
High
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: regenerate buddy after block freeing failed if under fc replay This mostly reverts commit 6bd97bf273bd ("ext4: remove redundant mb_regenerate_buddy()") and reintroduces mb_regenerate_buddy(). Based on code in mb_free_blocks(), fast commit replay can end up marking as free blocks that are already marked as such. This causes corruption of the buddy bitmap so we need to regenerate it in that case.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedFeb 26, 2024
First seenFeb 26, 2024
How to fix
Update
- linux linux_kernel5.10.211, 5.15.150, 6.1.78, 6.6.17, 6.7.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.10.211, 5.11.0 ≤ v < 5.15.150, 5.16.0 ≤ v < 6.1.78, 6.2.0 ≤ v < 6.6.17, 6.7.0 ≤ v < 6.7.5 | 5.10.211, 5.15.150, 6.1.78, 6.6.17, 6.7.5 |
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