PT-2024-36889 · Linux+6 · Linux Kernel+6
Shinichiro Kawasaki
·
Published
2024-11-28
·
Updated
2025-10-03
·
CVE-2024-56582
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.12.0-rc6-kts+
Description
A use-after-free vulnerability has been identified in the Linux kernel, specifically in the btrfs encoded read endio() function. This issue was reported by Shinichiro and occurs when running fstests' btrfs/284 on a TCMU runner device. The vulnerability is caused by a slab-use-after-free error in the lock release() function. The estimated number of potentially affected devices worldwide is not available. There is no information about real-world incidents where this issue was exploited.
Technical details about exploitation include:
- The
btrfs encoded read endio()function is vulnerable. - The
lock release()function is also involved in the vulnerability. - The issue is related to a slab-use-after-free error.
Recommendations
To resolve the issue, update the Linux kernel to a version that includes the fix for the use-after-free vulnerability in the btrfs encoded read endio() function.
As a temporary workaround, consider disabling the
btrfs encoded read endio() function until a patch is available.Exploit
Fix
Use After Free
Double Free
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu