SB2025100308 - Use-after-free in Linux kernel scsi libsas driver
Published: October 3, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100308
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-2022-50422)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the smp_execute_task_sg() function in drivers/scsi/libsas/sas_expander.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/117331a2a5227fb4369c2a1f321d3e3e2e2ef8fe
- https://git.kernel.org/stable/c/2e12ce270f0d926085c1209cc90397e307deef97
- https://git.kernel.org/stable/c/46ba53c30666717cb06c2b3c5d896301cd00d0c0
- https://git.kernel.org/stable/c/a9e5176ead6de64f572ad5c87a72825d9d3c82ae
- https://git.kernel.org/stable/c/e45a1516d2933703a4823d9db71e17c3abeba24f
- https://git.kernel.org/stable/c/f7a785177611ffc97d645fcbc196e6de6ad2421d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17