SB2024082157 - Use-after-free in Linux kernel sched
Published: August 21, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024082157
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-2022-48892)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the do_set_cpus_allowed() function in kernel/sched/core.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/b22faa21b6230d5eccd233e1b7e0026a5002b287
- https://git.kernel.org/stable/c/7b5cc7fd1789ea5dbb942c9f8207b076d365badc
- https://git.kernel.org/stable/c/87ca4f9efbd7cc649ff43b87970888f2812945b8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.89
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2