SB20260918113 - Memory leak in Linux kernel hw hfi1 driver
Published: September 18, 2026
Security Bulletin ID
SB20260918113
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) Memory leak (CVE-ID: CVE-2026-93102)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/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 improper resource cleanup in the hfi1 init_one() cleanup path when hfi1_init() or hfi1_register_ib_device() fails after RX support allocation. A local user can trigger a late probe failure to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/10e5e37495096b58f07adc4020de2701efc3a9e0
- https://git.kernel.org/stable/c/149a14ec70887ad14e820a7ca15738ded3d2d493
- https://git.kernel.org/stable/c/83fe4e4f4fbf01d3832a24511c0ddfaccf5df9d8
- https://git.kernel.org/stable/c/8e17e101e04a3dc062e2719da57ff78c1c060632
- https://git.kernel.org/stable/c/cd06c17afb08b37995f66cf560c2332a769b8f80
- https://git.kernel.org/stable/c/cfad037c6d305876b877abc39fd4d7e2185e44f3
- https://git.kernel.org/stable/c/d1c91cb02e05fdd93411de707cc5c3c08375df9e