{"api_version":"1","generated_at":"2026-08-23T09:26:24+00:00","cve":"CVE-2026-68303","urls":{"html":"https://cve.report/CVE-2026-68303","api":"https://cve.report/api/cve/CVE-2026-68303.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68303","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68303"},"summary":{"title":"drm/vc4: hvs/v3d: Fix null dereference in unbind","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: hvs/v3d: Fix null dereference in unbind\n\nThe hvs and v3d drivers use dev_get_drvdata(master) in their unbind\nfunctions. Since the vc4-drm gets removed before its dependent drivers\n(vc4_hvs/vc4_v3d) the vc4_hvs_unbind/vc4_v3d_unbind functions try to\nget drvdata of its master and fails with a null dereference error.\n\nUse the data pointer passed to the unbind functions directly instead of\ndev_get_drvdata(master). This avoids using potentially freed memory.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:19","updated_at":"2026-08-17 05:18:33"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/261f0a3f0ac03248284f5116d3258f89c9642215","name":"https://git.kernel.org/stable/c/261f0a3f0ac03248284f5116d3258f89c9642215","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7dc3680b7ffe01add3e9299fde8471d2dd53a8ae","name":"https://git.kernel.org/stable/c/7dc3680b7ffe01add3e9299fde8471d2dd53a8ae","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68303","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68303","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c8b75bca92cbf064b9fa125fc74a85994452e935 261f0a3f0ac03248284f5116d3258f89c9642215 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c8b75bca92cbf064b9fa125fc74a85994452e935 7dc3680b7ffe01add3e9299fde8471d2dd53a8ae git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.6 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"68303","cve":"CVE-2026-68303","epss":"0.001890000","percentile":"0.088810000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/vc4/vc4_hvs.c","drivers/gpu/drm/vc4/vc4_v3d.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"261f0a3f0ac03248284f5116d3258f89c9642215","status":"affected","version":"c8b75bca92cbf064b9fa125fc74a85994452e935","versionType":"git"},{"lessThan":"7dc3680b7ffe01add3e9299fde8471d2dd53a8ae","status":"affected","version":"c8b75bca92cbf064b9fa125fc74a85994452e935","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/vc4/vc4_hvs.c","drivers/gpu/drm/vc4/vc4_v3d.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.4"},{"lessThan":"4.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"4.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"4.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: hvs/v3d: Fix null dereference in unbind\n\nThe hvs and v3d drivers use dev_get_drvdata(master) in their unbind\nfunctions. Since the vc4-drm gets removed before its dependent drivers\n(vc4_hvs/vc4_v3d) the vc4_hvs_unbind/vc4_v3d_unbind functions try to\nget drvdata of its master and fails with a null dereference error.\n\nUse the data pointer passed to the unbind functions directly instead of\ndev_get_drvdata(master). This avoids using potentially freed memory."}],"providerMetadata":{"dateUpdated":"2026-08-17T05:02:55.269Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/261f0a3f0ac03248284f5116d3258f89c9642215"},{"url":"https://git.kernel.org/stable/c/7dc3680b7ffe01add3e9299fde8471d2dd53a8ae"}],"title":"drm/vc4: hvs/v3d: Fix null dereference in unbind","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68303","datePublished":"2026-08-10T12:02:37.512Z","dateReserved":"2026-07-30T09:28:09.381Z","dateUpdated":"2026-08-17T05:02:55.269Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:19","lastModifiedDate":"2026-08-17 05:18:33","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68303","Ordinal":"1","Title":"drm/vc4: hvs/v3d: Fix null dereference in unbind","CVE":"CVE-2026-68303","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68303","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: hvs/v3d: Fix null dereference in unbind\n\nThe hvs and v3d drivers use dev_get_drvdata(master) in their unbind\nfunctions. Since the vc4-drm gets removed before its dependent drivers\n(vc4_hvs/vc4_v3d) the vc4_hvs_unbind/vc4_v3d_unbind functions try to\nget drvdata of its master and fails with a null dereference error.\n\nUse the data pointer passed to the unbind functions directly instead of\ndev_get_drvdata(master). This avoids using potentially freed memory.","Type":"Description","Title":"drm/vc4: hvs/v3d: Fix null dereference in unbind"}]}}}