SB20260918196 - Use-after-free in Linux kernel hw erdma driver
Published: September 18, 2026
Security Bulletin ID
SB20260918196
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-92514)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a use-after-free in the ERDMA completion event queue tasklet when removing an ERDMA device. A local user can trigger device removal while a previously scheduled completion event queue tasklet is pending to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0ca79979384f031d710c4b3bae065dcb5d95aca3
- https://git.kernel.org/stable/c/0e8b78dabb1f156db05ffe74c6eae861167c7c21
- https://git.kernel.org/stable/c/61a25b8d333e1eb2a189881d516f8d5194e26840
- https://git.kernel.org/stable/c/6e129c1310abfa786a510cc63e69c5ef12349048
- https://git.kernel.org/stable/c/a60c36d8d17f1b86705523d5eb6d290df28831e5
- https://git.kernel.org/stable/c/f738c0a372d36a10dfae6dc357717c13b2aa72f4