PT-2024-33712 · Linux+7 · Linux Kernel+7
Syzbot
·
Published
2024-10-01
·
Updated
2025-09-15
·
CVE-2024-49867
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions:
Linux kernel versions prior to 6.6.58
Description:
A vulnerability in the Linux kernel has been resolved, related to the btrfs file system. The issue occurs during unmount, where a fixup worker can result in a crash when attempting to wake up the cleaner kthread after it has been stopped and its resources freed. This happens because the kernel does not wait for any fixup workers still running before stopping the cleaner kthread. The vulnerability can cause a slab-use-after-free error, as reported by Syzbot.
Recommendations:
To resolve this issue, update the Linux kernel to version 6.6.58 or later. As a temporary workaround, consider disabling the btrfs file system or restricting its use until the update can be applied.
Exploit
Fix
Use After Free
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu