SB2024123068 - Use-after-free in Linux kernel btrfs
Published: December 30, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024123068
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2024-56581)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the btrfs_ref_tree_mod() function in fs/btrfs/ref-verify.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/4275ac2741941c9c7c2293619fdbacb9f70ba85b
- https://git.kernel.org/stable/c/6370db28af9a8ae3bbdfe97f8a48f8f995e144cf
- https://git.kernel.org/stable/c/6fd018aa168e472ce35be32296d109db6adb87ea
- https://git.kernel.org/stable/c/7c4e39f9d2af4abaf82ca0e315d1fd340456620f
- https://git.kernel.org/stable/c/a6f9e7a0bf1185c9070c0de03bb85eafb9abd650
- https://git.kernel.org/stable/c/d2b85ce0561fde894e28fa01bd5d32820d585006
- https://git.kernel.org/stable/c/dfb9fe7de61f34cc241ab3900bdde93341096e0e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.287