SB2025072744 - NULL pointer dereference in Linux kernel hw mlx5 driver
Published: July 27, 2025
Security Bulletin ID
SB2025072744
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) NULL pointer dereference (CVE-ID: CVE-2025-38387)
CWE-ID: CWE-476 - NULL Pointer Dereference
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 perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the subscribe_event_xa_alloc() function in drivers/infiniband/hw/mlx5/devx.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/00ed215f593876385451423924fe0358c556179c
- https://git.kernel.org/stable/c/23a3b32a274a8d6f33480d0eff436eb100981651
- https://git.kernel.org/stable/c/716b555fc0580c2aa4c2c32ae4401c7e3ad9873e
- https://git.kernel.org/stable/c/8edab8a72d67742f87e9dc2e2b0cdfddda5dc29a
- https://git.kernel.org/stable/c/93fccfa71c66a4003b3d2fef3a38de7307e14a4e
- https://git.kernel.org/stable/c/972e968aac0dce8fe8faad54f6106de576695d8e
- https://git.kernel.org/stable/c/9a28377a96fb299c180dd9cf0be3b0a038a52d4e
- https://git.kernel.org/stable/c/e8069711139249994450c214cec152b917b959e0