{"api_version":"1","generated_at":"2026-09-16T10:45:59+00:00","cve":"CVE-2026-68210","urls":{"html":"https://cve.report/CVE-2026-68210","api":"https://cve.report/api/cve/CVE-2026-68210.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-68210","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-68210"},"summary":{"title":"media: stm32: dcmi: unregister notifier on probe failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: stm32: dcmi: unregister notifier on probe failure\n\ndcmi_graph_init() registers the async notifier before dcmi_probe() toggles\nthe reset line. If reset_control_assert() or reset_control_deassert()\nfails afterwards, probe returns through err_cleanup and the driver core\nwill not call dcmi_remove().\n\nUnregister the notifier before cleaning it up on that error path,\nmatching the successful remove path and the V4L2 async notifier lifetime\nrules.\n\n[hverkuil: added Fixes tag]","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-10 13:20:08","updated_at":"2026-08-19 17:20:36"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/222a9301b086852b90d3b092fef436c3f4e927c4","name":"https://git.kernel.org/stable/c/222a9301b086852b90d3b092fef436c3f4e927c4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4b7ee504969e074725e439c949f2483e5fa5572a","name":"https://git.kernel.org/stable/c/4b7ee504969e074725e439c949f2483e5fa5572a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/931abe1deb65b919d23fa203d7f6d6fbd4fccd8e","name":"https://git.kernel.org/stable/c/931abe1deb65b919d23fa203d7f6d6fbd4fccd8e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/37ff63c5d7119cbc5c6bacdcc658add6008a8e1f","name":"https://git.kernel.org/stable/c/37ff63c5d7119cbc5c6bacdcc658add6008a8e1f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/084973ebd67b28f0945c5d45408f86c58b540110","name":"https://git.kernel.org/stable/c/084973ebd67b28f0945c5d45408f86c58b540110","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6c6f22b7e6cbc4e8c1e359fc9b190419391c3db7","name":"https://git.kernel.org/stable/c/6c6f22b7e6cbc4e8c1e359fc9b190419391c3db7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68210","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68210","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d079f94c90469f413920b9f2b201537fac2ceb06 222a9301b086852b90d3b092fef436c3f4e927c4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d079f94c90469f413920b9f2b201537fac2ceb06 37ff63c5d7119cbc5c6bacdcc658add6008a8e1f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d079f94c90469f413920b9f2b201537fac2ceb06 6c6f22b7e6cbc4e8c1e359fc9b190419391c3db7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d079f94c90469f413920b9f2b201537fac2ceb06 931abe1deb65b919d23fa203d7f6d6fbd4fccd8e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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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":"68210","cve":"CVE-2026-68210","epss":"0.001750000","percentile":"0.073360000","score_date":"2026-08-19","updated_at":"2026-08-20 00:13:09"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/media/platform/st/stm32/stm32-dcmi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"222a9301b086852b90d3b092fef436c3f4e927c4","status":"affected","version":"d079f94c90469f413920b9f2b201537fac2ceb06","versionType":"git"},{"lessThan":"37ff63c5d7119cbc5c6bacdcc658add6008a8e1f","status":"affected","version":"d079f94c90469f413920b9f2b201537fac2ceb06","versionType":"git"},{"lessThan":"6c6f22b7e6cbc4e8c1e359fc9b190419391c3db7","status":"affected","version":"d079f94c90469f413920b9f2b201537fac2ceb06","versionType":"git"},{"lessThan":"931abe1deb65b919d23fa203d7f6d6fbd4fccd8e","status":"affected","version":"d079f94c90469f413920b9f2b201537fac2ceb06","versionType":"git"},{"lessThan":"4b7ee504969e074725e439c949f2483e5fa5572a","status":"affected","version":"d079f94c90469f413920b9f2b201537fac2ceb06","versionType":"git"},{"lessThan":"084973ebd67b28f0945c5d45408f86c58b540110","status":"affected","version":"d079f94c90469f413920b9f2b201537fac2ceb06","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/media/platform/st/stm32/stm32-dcmi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.148","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.101","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.42","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":"6.1.183","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.148","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.101","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.42","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.6","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"4.20","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: stm32: dcmi: unregister notifier on probe failure\n\ndcmi_graph_init() registers the async notifier before dcmi_probe() toggles\nthe reset line. If reset_control_assert() or reset_control_deassert()\nfails afterwards, probe returns through err_cleanup and the driver core\nwill not call dcmi_remove().\n\nUnregister the notifier before cleaning it up on that error path,\nmatching the successful remove path and the V4L2 async notifier lifetime\nrules.\n\n[hverkuil: added Fixes tag]"}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"scenarios":[{"lang":"en","value":"AV:L - The affected code is a platform camera-interface driver probe path on STM32 SoCs; it is reached only through local device/driver binding on the machine itself, with the resulting dangling notifier consumed by in-kernel V4L2 subdev registration. No network or remote data path reaches this code.\nAC:L - Once the driver has probe-failed on the reset line, the stale notifier remains on the global v4l2 notifier_list indefinitely, and any subsequent subdev registration deterministically walks the freed object; no race or unpredictable memory layout must be won to reach the freed dereference.\nPR:L - A local user account on the device is sufficient to interact with the media/V4L2 stack and trigger subdev registration paths that walk the corrupted global notifier list; no root or administrative capability is needed to consume the dangling pointer.\nUI:N - The stale notifier is left behind automatically by the failing probe path and is dereferenced by kernel-internal V4L2 async registration; no victim action such as opening a file or mounting a filesystem is required.\nS:U - The freed memory, the corrupted list, and the resulting impact are all within the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The devm-allocated stm32_dcmi object containing the notifier is freed while still linked into the global notifier_list, so reallocated heap contents are read back as notifier state and traversed as list pointers, which can be leveraged to disclose kernel memory.\nI:H - Traversal and eventual list_del of the freed notifier_entry performs writes through attacker-influenceable heap contents, giving a use-after-free list-corruption primitive that can be shaped into an arbitrary write and control-flow hijack.\nA:H - Dereferencing and unlinking a freed notifier from the global list reliably produces list corruption and an oops or panic in the V4L2 async core, taking down the kernel."}]}],"providerMetadata":{"dateUpdated":"2026-08-19T16:31:34.517Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/222a9301b086852b90d3b092fef436c3f4e927c4"},{"url":"https://git.kernel.org/stable/c/37ff63c5d7119cbc5c6bacdcc658add6008a8e1f"},{"url":"https://git.kernel.org/stable/c/6c6f22b7e6cbc4e8c1e359fc9b190419391c3db7"},{"url":"https://git.kernel.org/stable/c/931abe1deb65b919d23fa203d7f6d6fbd4fccd8e"},{"url":"https://git.kernel.org/stable/c/4b7ee504969e074725e439c949f2483e5fa5572a"},{"url":"https://git.kernel.org/stable/c/084973ebd67b28f0945c5d45408f86c58b540110"}],"title":"media: stm32: dcmi: unregister notifier on probe failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-68210","datePublished":"2026-08-10T12:00:29.515Z","dateReserved":"2026-07-30T09:28:09.375Z","dateUpdated":"2026-08-19T16:31:34.517Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-10 13:20:08","lastModifiedDate":"2026-08-19 17:20:36","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"68210","Ordinal":"1","Title":"media: stm32: dcmi: unregister notifier on probe failure","CVE":"CVE-2026-68210","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"68210","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: stm32: dcmi: unregister notifier on probe failure\n\ndcmi_graph_init() registers the async notifier before dcmi_probe() toggles\nthe reset line. If reset_control_assert() or reset_control_deassert()\nfails afterwards, probe returns through err_cleanup and the driver core\nwill not call dcmi_remove().\n\nUnregister the notifier before cleaning it up on that error path,\nmatching the successful remove path and the V4L2 async notifier lifetime\nrules.\n\n[hverkuil: added Fixes tag]","Type":"Description","Title":"media: stm32: dcmi: unregister notifier on probe failure"}]}}}