CVE-2024-26601

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 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.

Package Linux Kernel
Published 2024-02-26
Last modified 2024-11-21
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.10.181, 5.11 and later are affected. Fixed in 5.10.211, 5.15.150, 6.1.78, 6.6.17, 6.7.5, 6.8 and their respective stable series.

Affected from
≥ 5.10.181 ≥ 5.11
Fixed in
✓ 5.10.211 5.10.x ✓ 5.15.150 5.15.x ✓ 6.1.78 6.1.x ✓ 6.6.17 6.6.x ✓ 6.7.5 6.7.x ✓ 6.8

Frequently asked questions

  • What is CVE-2024-26601?

    CVE-2024-26601 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.10.181 onward and has been patched in 5.10.211, 5.15.150, 6.1.78 and others. CVE-2024-26601 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-26601?

    CVE-2024-26601 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2024-26601?

    Yes. CVE-2024-26601 has been patched. Fixed versions include 5.10.211, 5.15.150, 6.1.78 and others. If you are running Linux kernel 5.10.181 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-26601 actively exploited?

    No. CVE-2024-26601 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.