{"id":"CVE-2026-97928","revision":"4b73b924f0f047c79562d3aa9affb16b","records":[{"revision":"4b73b924f0f047c79562d3aa9affb16b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97928","aliases":[],"title":"drm/amdgpu: skip the VMID 0 flush for VRAM","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: skip the VMID 0 flush for VRAM\n\nClear-on-release only runs on VRAM, which amdgpu_ttm_map_buffer() reaches\nvia its direct MC address without programming a GART window, yet the wipe\nstill forces a VMID 0 flush. On GFX11 (e.g. Navi33) that spurious SDMA\nflush can wedge the engine; only flush when a GART window is actually used.\n\nv2: Let amdgpu_ttm_map_buffer() return whether the VMID 0 flush is needed,\n    and drive the clear and copy paths from that. (Christian)\nv3: Make the vm_needs_flush output parameter mandatory instead of\n    allowing NULL. (Christian)\n\n(cherry picked from commit a306e406e570b74318ff7d80e5b07b540ca1d3a9)","state":0,"publishedAt":"2026-09-25T10:22:45.43+00:00","modifiedAt":"2026-10-21T12:53:39.969+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"a68c7eaa7a8ffdec9287ba1561a668d674c20a13\",\n                            \"lessThan\": \"6593494733ccaf691db7bd13801583d188409607\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a68c7eaa7a8ffdec9287ba1561a668d674c20a13\",\n                            \"lessThan\": \"30dacb56f07283a1acb353ce81baef31f85396b0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a68c7eaa7a8ffdec9287ba1561a668d674c20a13\",\n                            \"lessThan\": \"241d7450cf75969cea450eb3e740cb9682f69c2f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a68c7eaa7a8ffdec9287ba1561a668d674c20a13\",\n                            \"lessThan\": \"87ceb8cba73d0b3c4025ff42495bccd8164acaed\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.10\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.10\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/6593494733ccaf691db7bd13801583d188409607","https://git.kernel.org/stable/c/30dacb56f07283a1acb353ce81baef31f85396b0","https://git.kernel.org/stable/c/241d7450cf75969cea450eb3e740cb9682f69c2f","https://git.kernel.org/stable/c/87ceb8cba73d0b3c4025ff42495bccd8164acaed"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97928","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97928","identifiers":["CVE-2026-97928"]},"retained":false,"historicalAffected":[]}],"coverage":[]}