{"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": "2026-02-04T16:08:12.575Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-02-04T16:08:12.575Z"}, "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": "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": "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-rc7", "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": "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-rc7"}]}]}], "references": [{"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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-23089", "lastModified": "2026-02-04T17:16:19.780", "metrics": {}, "published": "2026-02-04T17:16:19.780", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7bff0156d13f0ad9436e5178b979b063d59f572a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/930e69757b74c3ae083b0c3c7419bfe7f0edc7b2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dc1a5dd80af1ee1f29d8375b12dd7625f6294dad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e6f103a22b08daf5df2f4aa158081840e5910963"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}