SB20251226185 - NULL pointer dereference in Linux kernel ethernet sfc driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226185
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 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-54156)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the efx_ef10_fini_nic() and efx_ef10_update_stats_pf() functions in drivers/net/ethernet/sfc/ef10.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/446f5567934331923d0aec4ce045e4ecb0174aae
- https://git.kernel.org/stable/c/470152d76b3ed107d172ea46acc4bfa941f20b4b
- https://git.kernel.org/stable/c/91f4ef204e731565afdc6c2a7fcf509a3fd6fd67
- https://git.kernel.org/stable/c/aba32b4c58112960c0c708703ca6b44dc8944082
- https://git.kernel.org/stable/c/cb1aa7cc562cab6a87ea33574c8c65f2d2fd7aeb
- https://git.kernel.org/stable/c/d1b355438b8325a486f087e506d412c4e852f37b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.39
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5