{"id":"CVE-2026-46285","summary":"mtd: docg3: fix use-after-free in docg3_release()","details":"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-\u003efloors[0]-\u003epriv 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-\u003ecascade-\u003ebch dereferences the already-freed pointer.\n\nFix this by accessing cascade-\u003ebch directly, which is equivalent\nsince docg3-\u003ecascade points back to the same cascade struct, and\nis already available as a local variable. This also removes the\nnow-unused docg3 local variable.","modified":"2026-06-18T03:56:24.200888024Z","published":"2026-06-08T15:41:28.566Z","related":["openSUSE-SU-2026:11014-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46285.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/16f6588a3b7a2a20d10ad9b766be74c60ba347cc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2bf706fe7831b319f23a85b9728f961cfed40c3e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8408655ec8344511667b61d8257dc59c80ee3391"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ca19808bc6fac7e29420d8508df569b346b3e339"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d26f8c361f751c188b7ebaf8189aa0258968fd98"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d49628d63d4e6bbc8a1621afb88e5fc901611bee"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d89044889ecd11b0c2f86663597246e9bdd25679"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f5d2ed4ed47d3906e2495a3537a48b127f497a17"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46285.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46285"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c8ae3f744ddca0da164bcacee42d1d4b6fe7027d"},{"fixed":"8408655ec8344511667b61d8257dc59c80ee3391"},{"fixed":"f5d2ed4ed47d3906e2495a3537a48b127f497a17"},{"fixed":"2bf706fe7831b319f23a85b9728f961cfed40c3e"},{"fixed":"d26f8c361f751c188b7ebaf8189aa0258968fd98"},{"fixed":"16f6588a3b7a2a20d10ad9b766be74c60ba347cc"},{"fixed":"d89044889ecd11b0c2f86663597246e9bdd25679"},{"fixed":"d49628d63d4e6bbc8a1621afb88e5fc901611bee"},{"fixed":"ca19808bc6fac7e29420d8508df569b346b3e339"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-46285.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.8.0"},{"fixed":"5.10.258"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.140"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.86"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.27"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-46285.json"}}],"schema_version":"1.7.5"}