CVE-2026-97928
- Source
- https://cve.org/CVERecord?id=CVE-2026-97928
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-97928.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-97928
- Downstream
- Published
- 2026-09-25T10:22:45Z
- Modified
- 2026-09-26T03:48:41Z
- Summary
- drm/amdgpu: skip the VMID 0 flush for VRAM
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: skip the VMID 0 flush for VRAM
Clear-on-release only runs on VRAM, which amdgpu_ttm_map_buffer() reaches via its direct MC address without programming a GART window, yet the wipe still forces a VMID 0 flush. On GFX11 (e.g. Navi33) that spurious SDMA flush can wedge the engine; only flush when a GART window is actually used.
v2: Let amdgpu_ttm_map_buffer() return whether the VMID 0 flush is needed, and drive the clear and copy paths from that. (Christian) v3: Make the vm_needs_flush output parameter mandatory instead of allowing NULL. (Christian)
(cherry picked from commit a306e406e570b74318ff7d80e5b07b540ca1d3a9)
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97928.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/241d7450cf75969cea450eb3e740cb9682f69c2f
- https://git.kernel.org/stable/c/87ceb8cba73d0b3c4025ff42495bccd8164acaed
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97928.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-97928