SB2024080783 - Improper locking in Linux kernel bpf
Published: August 7, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024080783
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-2024-42239)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __bpf_async_init(), drop_prog_refcnt(), BPF_CALL_1() and hrtimer_cancel() functions in kernel/bpf/helpers.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/9369830518688ecd5b08ffc08ab3302ce2b5d0f7
- https://git.kernel.org/stable/c/3e4e8178a8666c56813bd167b848fca0f4c9af0a
- https://git.kernel.org/stable/c/d4523831f07a267a943f0dde844bf8ead7495f13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.41