SB20241230192 - Improper locking in Linux kernel bpf
Published: December 30, 2024 Updated: May 11, 2025
Security Bulletin ID
SB20241230192
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2024-56592)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the htab_elem_free(), free_htab_elem(), alloc_htab_elem(), htab_map_update_elem(), htab_map_delete_elem() and prealloc_lru_pop() functions in kernel/bpf/hashtab.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/10e8a2dec9ff1b81de8e892b0850924038adbc6d
- https://git.kernel.org/stable/c/a50b4aa3007e63a590d501341f304676ebc74b3b
- https://git.kernel.org/stable/c/b9e9ed90b10c82a4e9d4d70a2890f06bfcdd3b78
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.66