SB20251230182 - Use-after-free in Linux kernel fsi driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230182
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-2022-50785)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the occ_open(), occ_release(), fsi_occ_submit() and occ_remove() functions in drivers/fsi/fsi-occ.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1d5ad0a874ddfcee9f932f54b1d34cbe8b9ddcfe
- https://git.kernel.org/stable/c/3593e8efc9f0dac6be70bd5c964eadaa86bf2713
- https://git.kernel.org/stable/c/d3e1e24604031b0d83b6c2d38f54eeea265cfcc0
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.17
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1