{"api_version":"1","generated_at":"2026-07-23T14:56:10+00:00","cve":"CVE-2026-64021","urls":{"html":"https://cve.report/CVE-2026-64021","api":"https://cve.report/api/cve/CVE-2026-64021.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64021","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64021"},"summary":{"title":"drm/xe/oa: Fix exec_queue leak on width check in stream open","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/oa: Fix exec_queue leak on width check in stream open\n\nIn xe_oa_stream_open_ioctl(), when param.exec_q->width > 1 the\nfunction returns -EOPNOTSUPP directly, skipping the existing\nerr_exec_q cleanup path. The exec_queue reference obtained by\nxe_exec_queue_lookup() is leaked.\n\nThe exec queue holds a reference on the xe_file, which is only\ndropped during queue teardown. The leaked lookup ref is not on\nthe file's exec_queue xarray, so file close cannot release it.\nThis keeps both the exec queue and the file private state pinned\nindefinitely.\n\nJump to err_exec_q instead of returning directly so the reference\nis released.\n\n(cherry picked from commit 339fa0be9e4a5d69fa47e91f4a36574224fb478f)","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:42","updated_at":"2026-07-19 16:17:42"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/4d25342543c01310fc4e0cba7cb17c775e2421e2","name":"https://git.kernel.org/stable/c/4d25342543c01310fc4e0cba7cb17c775e2421e2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4b0c4f0c1b133d4bfa31c167200bcda646873328","name":"https://git.kernel.org/stable/c/4b0c4f0c1b133d4bfa31c167200bcda646873328","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/04ef7592eaadd9ca8f8f66e76452f73525cff819","name":"https://git.kernel.org/stable/c/04ef7592eaadd9ca8f8f66e76452f73525cff819","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64021","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64021","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0ed39830e6064d62f9c5393505677a26569bb56 04ef7592eaadd9ca8f8f66e76452f73525cff819 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0ed39830e6064d62f9c5393505677a26569bb56 4b0c4f0c1b133d4bfa31c167200bcda646873328 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f0ed39830e6064d62f9c5393505677a26569bb56 4d25342543c01310fc4e0cba7cb17c775e2421e2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.34 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.11 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64021","cve":"CVE-2026-64021","epss":"0.001660000","percentile":"0.061590000","score_date":"2026-07-20","updated_at":"2026-07-21 00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/xe/xe_oa.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"04ef7592eaadd9ca8f8f66e76452f73525cff819","status":"affected","version":"f0ed39830e6064d62f9c5393505677a26569bb56","versionType":"git"},{"lessThan":"4b0c4f0c1b133d4bfa31c167200bcda646873328","status":"affected","version":"f0ed39830e6064d62f9c5393505677a26569bb56","versionType":"git"},{"lessThan":"4d25342543c01310fc4e0cba7cb17c775e2421e2","status":"affected","version":"f0ed39830e6064d62f9c5393505677a26569bb56","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/xe/xe_oa.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.34","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.11","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/oa: Fix exec_queue leak on width check in stream open\n\nIn xe_oa_stream_open_ioctl(), when param.exec_q->width > 1 the\nfunction returns -EOPNOTSUPP directly, skipping the existing\nerr_exec_q cleanup path. The exec_queue reference obtained by\nxe_exec_queue_lookup() is leaked.\n\nThe exec queue holds a reference on the xe_file, which is only\ndropped during queue teardown. The leaked lookup ref is not on\nthe file's exec_queue xarray, so file close cannot release it.\nThis keeps both the exec queue and the file private state pinned\nindefinitely.\n\nJump to err_exec_q instead of returning directly so the reference\nis released.\n\n(cherry picked from commit 339fa0be9e4a5d69fa47e91f4a36574224fb478f)"}],"providerMetadata":{"dateUpdated":"2026-07-19T15:39:14.741Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/04ef7592eaadd9ca8f8f66e76452f73525cff819"},{"url":"https://git.kernel.org/stable/c/4b0c4f0c1b133d4bfa31c167200bcda646873328"},{"url":"https://git.kernel.org/stable/c/4d25342543c01310fc4e0cba7cb17c775e2421e2"}],"title":"drm/xe/oa: Fix exec_queue leak on width check in stream open","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64021","datePublished":"2026-07-19T15:39:14.741Z","dateReserved":"2026-07-19T07:54:57.027Z","dateUpdated":"2026-07-19T15:39:14.741Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:42","lastModifiedDate":"2026-07-19 16:17:42","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64021","Ordinal":"1","Title":"drm/xe/oa: Fix exec_queue leak on width check in stream open","CVE":"CVE-2026-64021","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64021","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/oa: Fix exec_queue leak on width check in stream open\n\nIn xe_oa_stream_open_ioctl(), when param.exec_q->width > 1 the\nfunction returns -EOPNOTSUPP directly, skipping the existing\nerr_exec_q cleanup path. The exec_queue reference obtained by\nxe_exec_queue_lookup() is leaked.\n\nThe exec queue holds a reference on the xe_file, which is only\ndropped during queue teardown. The leaked lookup ref is not on\nthe file's exec_queue xarray, so file close cannot release it.\nThis keeps both the exec queue and the file private state pinned\nindefinitely.\n\nJump to err_exec_q instead of returning directly so the reference\nis released.\n\n(cherry picked from commit 339fa0be9e4a5d69fa47e91f4a36574224fb478f)","Type":"Description","Title":"drm/xe/oa: Fix exec_queue leak on width check in stream open"}]}}}