{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98997","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.384Z","datePublished":"2026-10-23T12:20:16.267Z","dateUpdated":"2026-10-23T12:20:16.267Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-23T12:20:16.267Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/userq: only accept doorbell BOs as queue doorbell\n\namdgpu_userq_get_doorbell_index() pins any BO passed as doorbell_handle\ninto the doorbell domain. For a regular BO, TTM moves it with\nttm_bo_move_null() and its contents are lost. Since an importer on the\nsame device gets the exporter's GEM object, a client can do this to a\nbuffer another client shared with it.\n\nReject BOs that were not created in the doorbell domain.\n\nv2: drop the error message, use a local abo variable (Christian)\n\n(cherry picked from commit f7497bbc19db4821c62b9d97b31c9086feb2d917)"}],"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_userq.c"],"versions":[{"version":"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9","lessThan":"112dbe2b10d6d088a6c599980dd960dcbfa55ff0","status":"affected","versionType":"git"},{"version":"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9","lessThan":"8640b3f961d743d6dc0458c2b53a3af434690cc1","status":"affected","versionType":"git"},{"version":"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9","lessThan":"7f7c88dbf4d543f6703e53bdeed380e886733167","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_userq.c"],"versions":[{"version":"6.16","status":"affected"},{"version":"0","lessThan":"6.16","status":"unaffected","versionType":"semver"},{"version":"6.18.57","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.11","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","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":"6.16","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/112dbe2b10d6d088a6c599980dd960dcbfa55ff0"},{"url":"https://git.kernel.org/stable/c/8640b3f961d743d6dc0458c2b53a3af434690cc1"},{"url":"https://git.kernel.org/stable/c/7f7c88dbf4d543f6703e53bdeed380e886733167"}],"title":"drm/amdgpu/userq: only accept doorbell BOs as queue doorbell","x_generator":{"engine":"bippy-1.2.0"}}}}