{"id":"CVE-2026-89812","state":"PUBLISHED","title":"drm/amdgpu: force complete the MES ring fences on reset","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: force complete the MES ring fences on reset\n\nThe MES scheduler ring has no drm scheduler (no_scheduler = true), so it is\nskipped by the force-completion loop in amdgpu_device_pre_asic_reset(). It uses\na polling fence whose hw value lives in wb (GTT) memory and survives a MODE1\nreset, while fence_drv.sync_seq keeps advancing for every packet.\n\nWhen the reset is triggered because MES itself stopped responding, the\ntimed-out packets advance sync_seq past the last hw fence value MES wrote.\nAfter resume the first MES submission polls forever on a seq that is never\nwritten back, failing the resume and wedging the box on a second reset:\n\n  amdgpu: MES ring buffer is full.\n  amdgpu: *ERROR* ring gfx_0.0.0 test failed (-110)\n  amdgpu: resume of IP block <gfx_v11_0> failed -110\n  amdgpu: GPU reset end with ret = -110\n\nForce complete the MES scheduler ring fences together with the scheduler rings\nso their hw fence is realigned to sync_seq.\n\nv2: cover all XCCs (one scheduler ring each), not just mes.ring[0].","publishedAt":"2026-09-16T10:30:45.246Z","updatedAt":"2026-10-21T12:48:52.492Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"34e087e8920e635c62e2ed6a758b0cd27f836d13","status":"affected","lessThan":"c48d5a4d2863e56a6692ecb6cd6c32404f40cd0f","versionType":"git"},{"version":"34e087e8920e635c62e2ed6a758b0cd27f836d13","status":"affected","lessThan":"7d722821e2f626c4e34c8510f0ce1d6f10c77a3b","versionType":"git"},{"version":"34e087e8920e635c62e2ed6a758b0cd27f836d13","status":"affected","lessThan":"ebe7542553d008e2285e0fbba0c63f0295a7e694","versionType":"git"},{"version":"34e087e8920e635c62e2ed6a758b0cd27f836d13","status":"affected","lessThan":"48dc279c3010ac8f91b1845b2abb3a1e9943a0f5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_device.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_device.c"]}],"references":["https://git.kernel.org/stable/c/c48d5a4d2863e56a6692ecb6cd6c32404f40cd0f","https://git.kernel.org/stable/c/7d722821e2f626c4e34c8510f0ce1d6f10c77a3b","https://git.kernel.org/stable/c/ebe7542553d008e2285e0fbba0c63f0295a7e694","https://git.kernel.org/stable/c/48dc279c3010ac8f91b1845b2abb3a1e9943a0f5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89812.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89812","state":"PUBLISHED","datePublished":"2026-09-16T10:30:45.246Z","dateUpdated":"2026-10-21T12:48:52.492Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.768Z"},"containers":{"cna":{"title":"drm/amdgpu: force complete the MES ring fences on reset","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: force complete the MES ring fences on reset\n\nThe MES scheduler ring has no drm scheduler (no_scheduler = true), so it is\nskipped by the force-completion loop in amdgpu_device_pre_asic_reset(). It uses\na polling fence whose hw value lives in wb (GTT) memory and survives a MODE1\nreset, while fence_drv.sync_seq keeps advancing for every packet.\n\nWhen the reset is triggered because MES itself stopped responding, the\ntimed-out packets advance sync_seq past the last hw fence value MES wrote.\nAfter resume the first MES submission polls forever on a seq that is never\nwritten back, failing the resume and wedging the box on a second reset:\n\n  amdgpu: MES ring buffer is full.\n  amdgpu: *ERROR* ring gfx_0.0.0 test failed (-110)\n  amdgpu: resume of IP block <gfx_v11_0> failed -110\n  amdgpu: GPU reset end with ret = -110\n\nForce complete the MES scheduler ring fences together with the scheduler rings\nso their hw fence is realigned to sync_seq.\n\nv2: cover all XCCs (one scheduler ring each), not just mes.ring[0]."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"34e087e8920e635c62e2ed6a758b0cd27f836d13","status":"affected","lessThan":"c48d5a4d2863e56a6692ecb6cd6c32404f40cd0f","versionType":"git"},{"version":"34e087e8920e635c62e2ed6a758b0cd27f836d13","status":"affected","lessThan":"7d722821e2f626c4e34c8510f0ce1d6f10c77a3b","versionType":"git"},{"version":"34e087e8920e635c62e2ed6a758b0cd27f836d13","status":"affected","lessThan":"ebe7542553d008e2285e0fbba0c63f0295a7e694","versionType":"git"},{"version":"34e087e8920e635c62e2ed6a758b0cd27f836d13","status":"affected","lessThan":"48dc279c3010ac8f91b1845b2abb3a1e9943a0f5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_device.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_device.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c48d5a4d2863e56a6692ecb6cd6c32404f40cd0f"},{"url":"https://git.kernel.org/stable/c/7d722821e2f626c4e34c8510f0ce1d6f10c77a3b"},{"url":"https://git.kernel.org/stable/c/ebe7542553d008e2285e0fbba0c63f0295a7e694"},{"url":"https://git.kernel.org/stable/c/48dc279c3010ac8f91b1845b2abb3a1e9943a0f5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:48:52.492Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}