SB20260815173 - Integer overflow in Linux kernel hw mlx5 driver
Published: August 15, 2026
Security Bulletin ID
SB20260815173
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) Integer overflow (CVE-ID: CVE-2026-74297)
CWE-ID: CWE-190 - Integer overflow
CVSSv4: 6.8 [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]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to an integer overflow in set_rq_size() in the RDMA/mlx5 queue pair handling code when processing a user-provided rq_wqe_shift value. A local user can supply a crafted shift value to trigger undefined behavior and cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/42f3d2c8c18b92ea33e506a38b64f1a8986c2823
- https://git.kernel.org/stable/c/4b87a2497276a72fd63028e7419abf0fb7ed837b
- https://git.kernel.org/stable/c/6fc874fdfb366bfb11c62e6af9a831c8be59ddda
- https://git.kernel.org/stable/c/9fff54929cc00849d738faa99f06c32399aeb026
- https://git.kernel.org/stable/c/b732db02a2b04cde393638df19de6251ce62a74e
- https://git.kernel.org/stable/c/b746f949c2ac2b041102836095d6d4a2ef21fa75
- https://git.kernel.org/stable/c/c1dbf52d24a8cb1aa56780ba51b72e7d495f258c
- https://git.kernel.org/stable/c/d881d60223aac8fdc12b227d89c76e131e92a9cd