CVE-2024-26601

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 v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/6b0d48647935e4b8c7b75d1eccb9043fcd4ee581	Patch
https://git.kernel.org/stable/c/78327acd4cdc4a1601af718b781eece577b6b7d4	Patch
https://git.kernel.org/stable/c/94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a	Patch
https://git.kernel.org/stable/c/c1317822e2de80e78f137d3a2d99febab1b80326	Patch
https://git.kernel.org/stable/c/c9b528c35795b711331ed36dc3dbee90d5812d4e	Patch
https://git.kernel.org/stable/c/ea42d6cffb0dd27a417f410b9d0011e9859328cb	Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2024-02-26 16:27

Updated : 2024-06-25 22:15

NVD link : CVE-2024-26601

Mitre link : CVE-2024-26601

CVE.ORG link : CVE-2024-26601

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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