{"api_version":"1","generated_at":"2026-07-23T11:41:47+00:00","cve":"CVE-2026-46285","urls":{"html":"https://cve.report/CVE-2026-46285","api":"https://cve.report/api/cve/CVE-2026-46285.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46285","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46285"},"summary":{"title":"mtd: docg3: fix use-after-free in docg3_release()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: docg3: fix use-after-free in docg3_release()\n\nIn docg3_release(), the docg3 pointer is obtained from\ncascade->floors[0]->priv before the loop that calls\ndoc_release_device() on each floor. doc_release_device() frees the\ndocg3 struct via kfree(docg3) at line 1881. After the loop,\ndocg3->cascade->bch dereferences the already-freed pointer.\n\nFix this by accessing cascade->bch directly, which is equivalent\nsince docg3->cascade points back to the same cascade struct, and\nis already available as a local variable. This also removes the\nnow-unused docg3 local variable.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-08 17:16:46","updated_at":"2026-07-23 08:10:00"},"problem_types":["CWE-416"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","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"}}],"references":[{"url":"https://git.kernel.org/stable/c/ca19808bc6fac7e29420d8508df569b346b3e339","name":"https://git.kernel.org/stable/c/ca19808bc6fac7e29420d8508df569b346b3e339","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d89044889ecd11b0c2f86663597246e9bdd25679","name":"https://git.kernel.org/stable/c/d89044889ecd11b0c2f86663597246e9bdd25679","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d49628d63d4e6bbc8a1621afb88e5fc901611bee","name":"https://git.kernel.org/stable/c/d49628d63d4e6bbc8a1621afb88e5fc901611bee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f5d2ed4ed47d3906e2495a3537a48b127f497a17","name":"https://git.kernel.org/stable/c/f5d2ed4ed47d3906e2495a3537a48b127f497a17","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2bf706fe7831b319f23a85b9728f961cfed40c3e","name":"https://git.kernel.org/stable/c/2bf706fe7831b319f23a85b9728f961cfed40c3e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d26f8c361f751c188b7ebaf8189aa0258968fd98","name":"https://git.kernel.org/stable/c/d26f8c361f751c188b7ebaf8189aa0258968fd98","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8408655ec8344511667b61d8257dc59c80ee3391","name":"https://git.kernel.org/stable/c/8408655ec8344511667b61d8257dc59c80ee3391","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/16f6588a3b7a2a20d10ad9b766be74c60ba347cc","name":"https://git.kernel.org/stable/c/16f6588a3b7a2a20d10ad9b766be74c60ba347cc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46285","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46285","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c8ae3f744ddca0da164bcacee42d1d4b6fe7027d 8408655ec8344511667b61d8257dc59c80ee3391 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c8ae3f744ddca0da164bcacee42d1d4b6fe7027d f5d2ed4ed47d3906e2495a3537a48b127f497a17 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c8ae3f744ddca0da164bcacee42d1d4b6fe7027d 2bf706fe7831b319f23a85b9728f961cfed40c3e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected c8ae3f744ddca0da164bcacee42d1d4b6fe7027d d26f8c361f751c188b7ebaf8189aa0258968fd98 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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the Linux kernel, the following vulnerability has been resolved:\n\nmtd: docg3: fix use-after-free in docg3_release()\n\nIn docg3_release(), the docg3 pointer is obtained from\ncascade->floors[0]->priv before the loop that calls\ndoc_release_device() on each floor. doc_release_device() frees the\ndocg3 struct via kfree(docg3) at line 1881. After the loop,\ndocg3->cascade->bch dereferences the already-freed pointer.\n\nFix this by accessing cascade->bch directly, which is equivalent\nsince docg3->cascade points back to the same cascade struct, and\nis already available as a local variable. This also removes the\nnow-unused docg3 local variable."}],"providerMetadata":{"dateUpdated":"2026-06-14T18:06:23.744Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8408655ec8344511667b61d8257dc59c80ee3391"},{"url":"https://git.kernel.org/stable/c/f5d2ed4ed47d3906e2495a3537a48b127f497a17"},{"url":"https://git.kernel.org/stable/c/2bf706fe7831b319f23a85b9728f961cfed40c3e"},{"url":"https://git.kernel.org/stable/c/d26f8c361f751c188b7ebaf8189aa0258968fd98"},{"url":"https://git.kernel.org/stable/c/16f6588a3b7a2a20d10ad9b766be74c60ba347cc"},{"url":"https://git.kernel.org/stable/c/d89044889ecd11b0c2f86663597246e9bdd25679"},{"url":"https://git.kernel.org/stable/c/d49628d63d4e6bbc8a1621afb88e5fc901611bee"},{"url":"https://git.kernel.org/stable/c/ca19808bc6fac7e29420d8508df569b346b3e339"}],"title":"mtd: docg3: fix use-after-free in docg3_release()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46285","datePublished":"2026-06-08T15:41:28.566Z","dateReserved":"2026-05-13T15:03:33.110Z","dateUpdated":"2026-06-14T18:06:23.744Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-08 17:16:46","lastModifiedDate":"2026-07-23 08:10:00","problem_types":["CWE-416"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","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":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.10.258","matchCriteriaId":"40E51E64-6FFB-47A5-B645-DC521C2C3E90"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.209","matchCriteriaId":"919C10A9-7951-4A74-BADD-C135A0A8D8B4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.175","matchCriteriaId":"92385813-D91D-480D-83A1-F423D2CBB2BA"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.140","matchCriteriaId":"A1A92866-F406-43B5-B2D1-CFC274753E9D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.86","matchCriteriaId":"55DA1C62-9991-451E-B8A8-E0004E00F789"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.27","matchCriteriaId":"A10AC84F-C058-47D5-85B4-E6E51A613B74"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.4","matchCriteriaId":"CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46285","Ordinal":"1","Title":"mtd: docg3: fix use-after-free in docg3_release()","CVE":"CVE-2026-46285","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46285","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: docg3: fix use-after-free in docg3_release()\n\nIn docg3_release(), the docg3 pointer is obtained from\ncascade->floors[0]->priv before the loop that calls\ndoc_release_device() on each floor. doc_release_device() frees the\ndocg3 struct via kfree(docg3) at line 1881. After the loop,\ndocg3->cascade->bch dereferences the already-freed pointer.\n\nFix this by accessing cascade->bch directly, which is equivalent\nsince docg3->cascade points back to the same cascade struct, and\nis already available as a local variable. This also removes the\nnow-unused docg3 local variable.","Type":"Description","Title":"mtd: docg3: fix use-after-free in docg3_release()"}]}}}