{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80539","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-26T14:34:25.765Z","datePublished":"2026-08-26T14:37:13.367Z","dateUpdated":"2026-08-27T12:40:05.835Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-27T12:40:05.835Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: disallow multiple FENCE chunks in one submit\n\namdgpu_cs_pass1() dispatches on chunk_id once per chunk without\nrejecting repeated ids. p->uf_bo is a single-slot field, so a\nsubmission carrying two AMDGPU_CHUNK_ID_FENCE chunks runs\namdgpu_cs_p1_user_fence() twice, and the second run overwrites\np->uf_bo with a freshly referenced BO without dropping the reference\ntaken by the first.\n\namdgpu_cs_parser_fini() only unrefs the final p->uf_bo, so every FENCE\nchunk but the last leaks a BO reference. The leaked BO outlives handle\nclose and process exit.\n\nReject duplicate FENCE chunks the same way commit fec5f8e8c6bc\n(\"drm/amdgpu: disallow multiple BO_HANDLES chunks in one submit\") did\nfor p->bo_list.\n\n(cherry picked from commit 665b1fc2a1845206408f9a2c6da67101789edb82)"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c"],"versions":[{"version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","lessThan":"7e9954e7212042ec808b06181b365b14f00c6f0a","status":"affected","versionType":"git"},{"version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","lessThan":"070229262ede37d17c4ea596650deb6e5eb5d106","status":"affected","versionType":"git"},{"version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","lessThan":"5f46322e0b84af29e10eb951ff45bd6ea40640de","status":"affected","versionType":"git"},{"version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","lessThan":"71aa45f7bfe46fbc6f51e7832573ff49b6005fea","status":"affected","versionType":"git"},{"version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","lessThan":"e3ee74d6dbbe409eb99546a7b0a02b2782f9021d","status":"affected","versionType":"git"},{"version":"d38ceaf99ed015f2a0b9af3499791bd3a3daae21","lessThan":"931cd1d1baeae68e8eb2c23bc1f3d8934dca6241","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c"],"versions":[{"version":"4.2","status":"affected"},{"version":"0","lessThan":"4.2","status":"unaffected","versionType":"semver"},{"version":"6.1.185","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.153","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.105","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.46","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.10","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.1.185"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.6.153"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.12.105"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"6.18.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.1.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.2","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/7e9954e7212042ec808b06181b365b14f00c6f0a"},{"url":"https://git.kernel.org/stable/c/070229262ede37d17c4ea596650deb6e5eb5d106"},{"url":"https://git.kernel.org/stable/c/5f46322e0b84af29e10eb951ff45bd6ea40640de"},{"url":"https://git.kernel.org/stable/c/71aa45f7bfe46fbc6f51e7832573ff49b6005fea"},{"url":"https://git.kernel.org/stable/c/e3ee74d6dbbe409eb99546a7b0a02b2782f9021d"},{"url":"https://git.kernel.org/stable/c/931cd1d1baeae68e8eb2c23bc1f3d8934dca6241"}],"title":"drm/amdgpu: disallow multiple FENCE chunks in one submit","x_generator":{"engine":"bippy-1.2.0"}}}}