Description (CNA)
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)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a68c7eaa7a8ffdec9287ba1561a668d674c20a13 before 6593494733ccaf691db7bd13801583d188409607; affected a68c7eaa7a8ffdec9287ba1561a668d674c20a13 before 30dacb56f07283a1acb353ce81baef31f85396b0; affected a68c7eaa7a8ffdec9287ba1561a668d674c20a13 before 241d7450cf75969cea450eb3e740cb9682f69c2f; affected a68c7eaa7a8ffdec9287ba1561a668d674c20a13 before 87ceb8cba73d0b3c4025ff42495bccd8164acaed |
| Linux / Linux | affected 6.10; unaffected 0 before 6.10; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.2.7 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.