CVE-2024-26601 : In the Linux kernel, the following vulnerability has been resolved: ext4: regen

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.

Published 2024-02-26 16:28:00

Updated 2024-11-05 10:15:31

Source Linux

View at NVD, CVE.org

Products affected by CVE-2024-26601

Linux » Linux Kernel
Versions from including (>=) 6.7.0 and before (<) 6.7.5
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.16.0 and before (<) 6.1.78
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 5.11.0 and before (<) 5.15.150
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions from including (>=) 6.2.0 and before (<) 6.6.17
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions
Linux » Linux Kernel
Versions before (<) 5.10.211
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2024-26601

EPSS FAQ

0.01%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 1 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2024-26601

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	1.8	3.6	NIST	2024-04-17
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	N/A	N/A	RedHat-CVE-2024-26601	2024-02-24
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

References for CVE-2024-26601

https://git.kernel.org/stable/c/c9b528c35795b711331ed36dc3dbee90d5812d4e

ext4: regenerate buddy after block freeing failed if under fc replay - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/78327acd4cdc4a1601af718b781eece577b6b7d4

ext4: regenerate buddy after block freeing failed if under fc replay - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/ea42d6cffb0dd27a417f410b9d0011e9859328cb

ext4: regenerate buddy after block freeing failed if under fc replay - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/94ebf71bddbcd4ab1ce43ae32c6cb66396d2d51a

ext4: regenerate buddy after block freeing failed if under fc replay - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/6b0d48647935e4b8c7b75d1eccb9043fcd4ee581

ext4: regenerate buddy after block freeing failed if under fc replay - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://git.kernel.org/stable/c/c1317822e2de80e78f137d3a2d99febab1b80326

ext4: regenerate buddy after block freeing failed if under fc replay - kernel/git/stable/linux.git - Linux kernel stable tree
Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html

[SECURITY] [DLA 3842-1] linux-5.10 security update

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Vulnerability Details : CVE-2024-26601

Products affected by CVE-2024-26601

Exploit prediction scoring system (EPSS) score for CVE-2024-26601

CVSS scores for CVE-2024-26601

References for CVE-2024-26601