Medium [CVE-2026-68246] Linux kernel: Denial of Service in amdgpu driver due to BUG_ON
This medium-severity Red Hat Linux advisory covers CVE-2026-68246 affecting Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8.
Android app · Google Play
Monitor future Red Hat Linux CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx11: replace BUG_ON() with WARN_ON() There's no need to crash the kernel for these cases. (cherry picked from commit daa62107452d2451787c4248ca38fa2d1a0cbefd) A vulnerability in the `drm/amdgpu/gfx11` graphics driver could cause the system to crash.
This issue arises from a condition that, when met, would trigger an error-handling mechanism designed to halt the kernel (BUG_ON()). An attacker with local access could potentially exploit this to cause a Denial of Service (DoS), rendering the system unusable.
The fix replaces this critical error halt with a warning (WARN_ON()), preventing system instability. Red Hat severity: Moderate — CVSS 4.4 (CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H).
Weakness: CWE-617. Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux for NVIDIA 26 as not affected. Will not fix / out of support: Red Hat Enterprise Linux 6.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: kernel-rt.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.