SB20260812284 - Reachable assertion in Linux kernel amd amdgpu driver
Published: August 12, 2026
Security Bulletin ID
SB20260812284
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) Reachable assertion (CVE-ID: CVE-2026-68246)
CWE-ID: CWE-617 - Reachable Assertion
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 improper handling of invalid alignment conditions in gfx_v11_0.c when processing misaligned GPU addresses and fence addresses. A local user can trigger a kernel BUG_ON condition to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0eebcab1ea2a77f086a04108f386f82ee3496022
- https://git.kernel.org/stable/c/625f301e01bf89694466fdaa1f9904e2c62eb8f2
- https://git.kernel.org/stable/c/7aeef42b657d930f3b639220e62120ac1bf058a1
- https://git.kernel.org/stable/c/96b6d68f2b5a208e4d8f1e4a932ec424655e1267
- https://git.kernel.org/stable/c/dfd9bf09fd8fe81f113a5c7e88bfd99f2499542f