SB20250502144 - Use-after-free in Linux kernel s390 kernel
Published: May 2, 2025 Updated: May 10, 2025
Security Bulletin ID
SB20250502144
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-2025-37753)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the cpumsf_pmu_event_init() function in arch/s390/kernel/perf_cpum_sf.c, within the cpumf_pmu_event_type() and cfdiag_event_init() functions in arch/s390/kernel/perf_cpum_cf.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3a3faf873db5dcd5d2622d8e2accb90af0a86c2d
- https://git.kernel.org/stable/c/aa1ac98268cd1f380c713f07e39b1fa1d5c7650c
- https://git.kernel.org/stable/c/bdbecb2bf531fadbbc9347a79009f7a58ea7eb03
- https://git.kernel.org/stable/c/ddf60c1491102dab04491481bc3376d3e9cd139d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.3