Bug 2265836 (CVE-2024-26601) - CVE-2024-26601 kernel: ext4: regenerate buddy after block freeing failed if under fc replay
Summary: CVE-2024-26601 kernel: ext4: regenerate buddy after block freeing failed if u...
Keywords:
Status: NEW
Alias: CVE-2024-26601
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2265837
Blocks: 2267044
TreeView+ depends on / blocked
 
Reported: 2024-02-24 17:51 UTC by Mauro Matteo Cascella
Modified: 2024-12-04 00:45 UTC (History)
49 users (show)

Fixed In Version: kernel 6.8-rc3
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2024:10771 0 None None None 2024-12-04 00:45:32 UTC
Red Hat Product Errata RHSA-2024:5066 0 None None None 2024-08-07 09:37:03 UTC
Red Hat Product Errata RHSA-2024:5067 0 None None None 2024-08-07 00:12:07 UTC
Red Hat Product Errata RHSA-2024:9315 0 None None None 2024-11-12 09:18:52 UTC

Description Mauro Matteo Cascella 2024-02-24 17:51:43 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ext4: regenerate buddy after block freeing failed if under fc replay

The Linux kernel CVE team has assigned CVE-2024-26601 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022411-CVE-2024-26601-b6ac@gregkh/T/#u
Comment 1 Mauro Matteo Cascella 2024-02-24 17:52:46 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2265837]
Comment 2 Eric Sandeen 2024-02-24 21:17:26 UTC 
Just a note - although there is no reproducer provided, the claimed problematic commit 6bd97bf273bd is in upstream in v5.11. The fix landed in v6.8.

The problematic commit does not appear to have been backported to RHEL8.
It is present in RHEL9, though.

(It's not clear to me how this bug is a security flaw.)
Comment 4 Justin M. Forbes 2024-02-26 23:48:41 UTC 
This was fixed for Fedora with the 6.7.5 stable kernel updates.
Comment 6 Alex 2024-06-09 15:30:22 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26601 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags DANGER DISK INIT  ; these flags parsed automatically based on patche data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.
Comment 11 errata-xmlrpc 2024-08-07 00:12:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:5067 https://access.redhat.com/errata/RHSA-2024:5067
Comment 12 errata-xmlrpc 2024-08-07 09:37:00 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2024:5066 https://access.redhat.com/errata/RHSA-2024:5066
Comment 13 errata-xmlrpc 2024-11-12 09:18:49 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9315 https://access.redhat.com/errata/RHSA-2024:9315
Comment 14 errata-xmlrpc 2024-12-04 00:45:28 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2024:10771 https://access.redhat.com/errata/RHSA-2024:10771
Note You need to log in before you can comment on or make changes to this bug.