SB20260529190 - Improper locking in Linux kernel hw hns driver
Published: May 29, 2026
Security Bulletin ID
SB20260529190
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper locking (CVE-ID: CVE-2026-46112)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to corrupt memory.
The vulnerability exists due to improper locking in hns_roce_create_qp_common() and hns_roce_qp_remove() when handling error unwind during queue pair creation. A local user can trigger the error path to corrupt memory.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0c99acbc8b6c6dd526ae475a48ee1897b61072fb
- https://git.kernel.org/stable/c/1912f78798505dc9c637081bbddfbf1c22494c49
- https://git.kernel.org/stable/c/615d9d260c32bb678504ca96f29ae46f9d745155
- https://git.kernel.org/stable/c/fb4ae739811d467409bd07d0e36cfd4140f3d26a
- https://git.kernel.org/stable/c/fcf6a832c0d5b2bc5398d6996c5570d3ee7993fb