Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.10.211 |
References
- https://git.kernel.org/stable/c/6b0d48647935e4b8c7b75d1eccb9043fcd4ee581Patch
- https://git.kernel.org/stable/c/78327acd4cdc4a1601af718b781eece577b6b7d4Patch
- https://git.kernel.org/stable/c/94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51aPatch
- https://git.kernel.org/stable/c/c1317822e2de80e78f137d3a2d99febab1b80326Patch
- https://git.kernel.org/stable/c/c9b528c35795b711331ed36dc3dbee90d5812d4ePatch
- https://git.kernel.org/stable/c/ea42d6cffb0dd27a417f410b9d0011e9859328cbPatch
- https://git.kernel.org/stable/c/6b0d48647935e4b8c7b75d1eccb9043fcd4ee581Patch
- https://git.kernel.org/stable/c/78327acd4cdc4a1601af718b781eece577b6b7d4Patch
- https://git.kernel.org/stable/c/94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51aPatch
- https://git.kernel.org/stable/c/c1317822e2de80e78f137d3a2d99febab1b80326Patch
- https://git.kernel.org/stable/c/c9b528c35795b711331ed36dc3dbee90d5812d4ePatch
- https://git.kernel.org/stable/c/ea42d6cffb0dd27a417f410b9d0011e9859328cbPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
FAQ
What is CVE-2024-26601?
CVE-2024-26601 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 redund...
How severe is CVE-2024-26601?
CVE-2024-26601 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-26601?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.