{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23089","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-01-13T15:37:45.962Z","datePublished":"2026-02-04T16:08:12.575Z","dateUpdated":"2026-05-11T21:59:47.264Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:59:47.264Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free()\n\nWhen snd_usb_create_mixer() fails, snd_usb_mixer_free() frees\nmixer->id_elems but the controls already added to the card still\nreference the freed memory. Later when snd_card_register() runs,\nthe OSS mixer layer calls their callbacks and hits a use-after-free read.\n\nCall trace:\n  get_ctl_value+0x63f/0x820 sound/usb/mixer.c:411\n  get_min_max_with_quirks.isra.0+0x240/0x1f40 sound/usb/mixer.c:1241\n  mixer_ctl_feature_info+0x26b/0x490 sound/usb/mixer.c:1381\n  snd_mixer_oss_build_test+0x174/0x3a0 sound/core/oss/mixer_oss.c:887\n  ...\n  snd_card_register+0x4ed/0x6d0 sound/core/init.c:923\n  usb_audio_probe+0x5ef/0x2a90 sound/usb/card.c:1025\n\nFix by calling snd_ctl_remove() for all mixer controls before freeing\nid_elems. We save the next pointer first because snd_ctl_remove()\nfrees the current element."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/mixer.c"],"versions":[{"version":"6639b6c2367f884ca172b78d69f7da17bfab2e5e","lessThan":"51b1aa6fe7dc87356ba58df06afb9677c9b841ea","status":"affected","versionType":"git"},{"version":"6639b6c2367f884ca172b78d69f7da17bfab2e5e","lessThan":"56fb6efd5d04caf6f14994d51ec85393b9a896c6","status":"affected","versionType":"git"},{"version":"6639b6c2367f884ca172b78d69f7da17bfab2e5e","lessThan":"7009daeefa945973a530b2f605fe445fc03747af","status":"affected","versionType":"git"},{"version":"6639b6c2367f884ca172b78d69f7da17bfab2e5e","lessThan":"7bff0156d13f0ad9436e5178b979b063d59f572a","status":"affected","versionType":"git"},{"version":"6639b6c2367f884ca172b78d69f7da17bfab2e5e","lessThan":"e6f103a22b08daf5df2f4aa158081840e5910963","status":"affected","versionType":"git"},{"version":"6639b6c2367f884ca172b78d69f7da17bfab2e5e","lessThan":"dc1a5dd80af1ee1f29d8375b12dd7625f6294dad","status":"affected","versionType":"git"},{"version":"6639b6c2367f884ca172b78d69f7da17bfab2e5e","lessThan":"930e69757b74c3ae083b0c3c7419bfe7f0edc7b2","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/mixer.c"],"versions":[{"version":"2.6.13","status":"affected"},{"version":"0","lessThan":"2.6.13","status":"unaffected","versionType":"semver"},{"version":"5.10.249","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.199","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.162","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.122","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.68","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.8","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"5.10.249"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"5.15.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.12.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.19"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/51b1aa6fe7dc87356ba58df06afb9677c9b841ea"},{"url":"https://git.kernel.org/stable/c/56fb6efd5d04caf6f14994d51ec85393b9a896c6"},{"url":"https://git.kernel.org/stable/c/7009daeefa945973a530b2f605fe445fc03747af"},{"url":"https://git.kernel.org/stable/c/7bff0156d13f0ad9436e5178b979b063d59f572a"},{"url":"https://git.kernel.org/stable/c/e6f103a22b08daf5df2f4aa158081840e5910963"},{"url":"https://git.kernel.org/stable/c/dc1a5dd80af1ee1f29d8375b12dd7625f6294dad"},{"url":"https://git.kernel.org/stable/c/930e69757b74c3ae083b0c3c7419bfe7f0edc7b2"}],"title":"ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free()","x_generator":{"engine":"bippy-1.2.0"}}}}