SB2026011450 - NULL pointer dereference in Linux kernel events amd
Published: January 14, 2026
Security Bulletin ID
SB2026011450
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-2025-68798)
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 amd_pmu_enable_all() function in arch/x86/events/amd/core.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/43c2e5c2acaae50e99d1c20a5a46e367c442fb3b
- https://git.kernel.org/stable/c/49324a0c40f7e9bae1bd0362d23fc42232e14621
- https://git.kernel.org/stable/c/6e41d9ec8d7cc3f01b9ba785e05f0ebef8b3b37f
- https://git.kernel.org/stable/c/866cf36bfee4fba6a492d2dcc5133f857e3446b0
- https://git.kernel.org/stable/c/e1028fb38b328084bc683a4efb001c95d3108573