{"id":"CVE-2026-74642","state":"PUBLISHED","title":"ALSA: usb: Fix UAF at delayed release of MIDI2 EPs","description":"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.","publishedAt":"2026-08-22T15:32:20.418Z","updatedAt":"2026-08-22T15:32:20.418Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"49eccef6d6e1c00dac6fb2e7eb6f9206c33e1c37","status":"affected","lessThan":"d431941825d357be7d9ab0cb7505e3a1963bd89e","versionType":"git"},{"version":"8a7a33b846d6ba695891b8d0040027cdbad8cd52","status":"affected","lessThan":"422d8a02de5ce6a29d616d55e5ead5dec69ac1d7","versionType":"git"},{"version":"cc014ebf803174f0e5d15956dfc5a38413c945ae","status":"affected","lessThan":"d217d723c5e43881b952cdb978477f7f2dc0b6d7","versionType":"git"},{"version":"ae388c0e1bf727972096f770f82d12e4f748d1b6","status":"affected","lessThan":"f9d492a39ebeb1a56f13ec6dd165a18a48dec812","versionType":"git"},{"version":"4a05b2d1b4642df74f30b6f54843e825c4a2bfd3","status":"affected","lessThan":"f8a80cfb68613fb7e6452b66447dbc63f435d140","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/midi2.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6.6.151","status":"affected","lessThan":"6.6.152","versionType":"semver"},{"version":"6.12.103","status":"affected","lessThan":"6.12.104","versionType":"semver"},{"version":"6.18.44","status":"affected","lessThan":"6.18.45","versionType":"semver"},{"version":"7.1.8","status":"affected","lessThan":"7.1.9","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/midi2.c"]}],"references":["https://git.kernel.org/stable/c/d431941825d357be7d9ab0cb7505e3a1963bd89e","https://git.kernel.org/stable/c/422d8a02de5ce6a29d616d55e5ead5dec69ac1d7","https://git.kernel.org/stable/c/d217d723c5e43881b952cdb978477f7f2dc0b6d7","https://git.kernel.org/stable/c/f9d492a39ebeb1a56f13ec6dd165a18a48dec812","https://git.kernel.org/stable/c/f8a80cfb68613fb7e6452b66447dbc63f435d140"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74642.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74642","state":"PUBLISHED","datePublished":"2026-08-22T15:32:20.418Z","dateUpdated":"2026-08-22T15:32:20.418Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.922Z"},"containers":{"cna":{"title":"ALSA: usb: Fix UAF at delayed release of MIDI2 EPs","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"49eccef6d6e1c00dac6fb2e7eb6f9206c33e1c37","status":"affected","lessThan":"d431941825d357be7d9ab0cb7505e3a1963bd89e","versionType":"git"},{"version":"8a7a33b846d6ba695891b8d0040027cdbad8cd52","status":"affected","lessThan":"422d8a02de5ce6a29d616d55e5ead5dec69ac1d7","versionType":"git"},{"version":"cc014ebf803174f0e5d15956dfc5a38413c945ae","status":"affected","lessThan":"d217d723c5e43881b952cdb978477f7f2dc0b6d7","versionType":"git"},{"version":"ae388c0e1bf727972096f770f82d12e4f748d1b6","status":"affected","lessThan":"f9d492a39ebeb1a56f13ec6dd165a18a48dec812","versionType":"git"},{"version":"4a05b2d1b4642df74f30b6f54843e825c4a2bfd3","status":"affected","lessThan":"f8a80cfb68613fb7e6452b66447dbc63f435d140","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/midi2.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6.6.151","status":"affected","lessThan":"6.6.152","versionType":"semver"},{"version":"6.12.103","status":"affected","lessThan":"6.12.104","versionType":"semver"},{"version":"6.18.44","status":"affected","lessThan":"6.18.45","versionType":"semver"},{"version":"7.1.8","status":"affected","lessThan":"7.1.9","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/midi2.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d431941825d357be7d9ab0cb7505e3a1963bd89e"},{"url":"https://git.kernel.org/stable/c/422d8a02de5ce6a29d616d55e5ead5dec69ac1d7"},{"url":"https://git.kernel.org/stable/c/d217d723c5e43881b952cdb978477f7f2dc0b6d7"},{"url":"https://git.kernel.org/stable/c/f9d492a39ebeb1a56f13ec6dd165a18a48dec812"},{"url":"https://git.kernel.org/stable/c/f8a80cfb68613fb7e6452b66447dbc63f435d140"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-22T15:32:20.418Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.151","versionEndExcluding":"6.6.152"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.103","versionEndExcluding":"6.12.104"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.44","versionEndExcluding":"6.18.45"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1.8","versionEndExcluding":"7.1.9"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}