SB2025121072 - Use-after-free in Linux kernel sw siw driver
Published: December 10, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025121072
CSH 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 vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-50666)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the siw_create_qp() and siw_destroy_qp() functions in drivers/infiniband/sw/siw/siw_verbs.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0ed8bf9d0bb19f3f5eedd73f04aaf5bba9ac0737
- https://git.kernel.org/stable/c/5c75d608fad58301b63e7d69200c13c3a1d411da
- https://git.kernel.org/stable/c/74ad141e995a730760b1bcfa14854b7f1057d6bc
- https://git.kernel.org/stable/c/a3c278807a459e6f50afee6971cabe74cccfb490
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.75
- 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