{"id":"CVE-2026-74642","summary":"ALSA: usb: Fix UAF at delayed release of MIDI2 EPs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb: Fix UAF at delayed release of MIDI2 EPs\n\nThe recent fix for UAF in ump_to_endpoint() caused another UAF because\nit tries to dereference the UMP endpoint object, but this might be\nexecuted at a delayed context where the endpoint has been already\nreleased.\n\nAdd private_free to clear the associated data for avoiding the further\ndereference for delayed releases.","modified":"2026-08-24T11:47:15.097591868Z","published":"2026-08-22T15:32:20.418Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74642.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/422d8a02de5ce6a29d616d55e5ead5dec69ac1d7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d217d723c5e43881b952cdb978477f7f2dc0b6d7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d431941825d357be7d9ab0cb7505e3a1963bd89e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f8a80cfb68613fb7e6452b66447dbc63f435d140"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f9d492a39ebeb1a56f13ec6dd165a18a48dec812"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74642.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74642"},{"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":"49eccef6d6e1c00dac6fb2e7eb6f9206c33e1c37"},{"fixed":"d431941825d357be7d9ab0cb7505e3a1963bd89e"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8a7a33b846d6ba695891b8d0040027cdbad8cd52"},{"fixed":"422d8a02de5ce6a29d616d55e5ead5dec69ac1d7"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"cc014ebf803174f0e5d15956dfc5a38413c945ae"},{"fixed":"d217d723c5e43881b952cdb978477f7f2dc0b6d7"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ae388c0e1bf727972096f770f82d12e4f748d1b6"},{"fixed":"f9d492a39ebeb1a56f13ec6dd165a18a48dec812"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4a05b2d1b4642df74f30b6f54843e825c4a2bfd3"},{"fixed":"f8a80cfb68613fb7e6452b66447dbc63f435d140"}]}],"versions":["v6.6.151","v6.12.103","v6.18.44","v7.1.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74642.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.151"},{"fixed":"6.6.152"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.12.103"},{"fixed":"6.12.104"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.18.44"},{"fixed":"6.18.45"}]},{"type":"ECOSYSTEM","events":[{"introduced":"7.1.8"},{"fixed":"7.1.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74642.json"}}],"schema_version":"1.9.0"}