CVE-2024-26601

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Source
https://cve.org/CVERecord?id=CVE-2024-26601
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26601.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-26601
Downstream
Related
Published
2024-02-24T14:56:56.324Z
Modified
2026-03-20T12:35:03.222282Z
Summary
ext4: regenerate buddy after block freeing failed if under fc replay
Details

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 mbregeneratebuddy()") and reintroduces mbregeneratebuddy(). Based on code in mbfreeblocks(), 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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26601.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0983142c5f17a62055ec851372273c3bc77e4788
Fixed
94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6bd97bf273bdb4944904e57480f6545bca48ad77
Fixed
c1317822e2de80e78f137d3a2d99febab1b80326
Fixed
78327acd4cdc4a1601af718b781eece577b6b7d4
Fixed
ea42d6cffb0dd27a417f410b9d0011e9859328cb
Fixed
6b0d48647935e4b8c7b75d1eccb9043fcd4ee581
Fixed
c9b528c35795b711331ed36dc3dbee90d5812d4e

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26601.json"