{"api_version":"1","generated_at":"2026-11-09T02:10:42+00:00","cve":"CVE-2026-98997","urls":{"html":"https://cve.report/CVE-2026-98997","api":"https://cve.report/api/cve/CVE-2026-98997.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98997","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98997"},"summary":{"title":"drm/amdgpu/userq: only accept doorbell BOs as queue doorbell","description":"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)","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-23 13:17:21","updated_at":"2026-10-23 13:17:21"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/112dbe2b10d6d088a6c599980dd960dcbfa55ff0","name":"https://git.kernel.org/stable/c/112dbe2b10d6d088a6c599980dd960dcbfa55ff0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8640b3f961d743d6dc0458c2b53a3af434690cc1","name":"https://git.kernel.org/stable/c/8640b3f961d743d6dc0458c2b53a3af434690cc1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7f7c88dbf4d543f6703e53bdeed380e886733167","name":"https://git.kernel.org/stable/c/7f7c88dbf4d543f6703e53bdeed380e886733167","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98997","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98997","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f09c1e6077abd1bc2ddd2b97e1135215801ca7f9 112dbe2b10d6d088a6c599980dd960dcbfa55ff0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f09c1e6077abd1bc2ddd2b97e1135215801ca7f9 8640b3f961d743d6dc0458c2b53a3af434690cc1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f09c1e6077abd1bc2ddd2b97e1135215801ca7f9 7f7c88dbf4d543f6703e53bdeed380e886733167 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.57 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.11 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"112dbe2b10d6d088a6c599980dd960dcbfa55ff0","status":"affected","version":"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9","versionType":"git"},{"lessThan":"8640b3f961d743d6dc0458c2b53a3af434690cc1","status":"affected","version":"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9","versionType":"git"},{"lessThan":"7f7c88dbf4d543f6703e53bdeed380e886733167","status":"affected","version":"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.57","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.57","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.11","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"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)"}],"providerMetadata":{"dateUpdated":"2026-10-23T12:20:16.267Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"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"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98997","datePublished":"2026-10-23T12:20:16.267Z","dateReserved":"2026-09-25T10:25:14.384Z","dateUpdated":"2026-10-23T12:20:16.267Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-23 13:17:21","lastModifiedDate":"2026-10-23 13:17:21","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98997","Ordinal":"1","Title":"drm/amdgpu/userq: only accept doorbell BOs as queue doorbell","CVE":"CVE-2026-98997","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98997","Ordinal":"1","NoteData":"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)","Type":"Description","Title":"drm/amdgpu/userq: only accept doorbell BOs as queue doorbell"}]}}}