CVE-2026-23089
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free()
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free() When snd_usb_create_mixer() fails, snd_usb_mixer_free() frees mixer->id_elems but the controls already added to the card still reference the freed memory. Later when snd_card_register() runs, the OSS mixer layer calls their callbacks and hits a use-after-free read. Call trace: get_ctl_value+0x63f/0x820 sound/usb/mixer.c:411 get_min_max_with_quirks.isra.0+0x240/0x1f40 sound/usb/mixer.c:1241 mixer_ctl_feature_info+0x26b/0x490 sound/usb/mixer.c:1381 snd_mixer_oss_build_test+0x174/0x3a0 sound/core/oss/mixer_oss.c:887 ... snd_card_register+0x4ed/0x6d0 sound/core/init.c:923 usb_audio_probe+0x5ef/0x2a90 sound/usb/card.c:1025 Fix by calling snd_ctl_remove() for all mixer controls before freeing id_elems. We save the next pointer first because snd_ctl_remove() frees the current element.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6639b6c2367f884ca172b78d69f7da17bfab2e5e | affected | git | 51b1aa6fe7dc87356ba58df06afb9677c9b841ea | Unavailable | None listed |
| 6639b6c2367f884ca172b78d69f7da17bfab2e5e | affected | git | 56fb6efd5d04caf6f14994d51ec85393b9a896c6 | Unavailable | None listed |
| 6639b6c2367f884ca172b78d69f7da17bfab2e5e | affected | git | 7009daeefa945973a530b2f605fe445fc03747af | Unavailable | None listed |
| 6639b6c2367f884ca172b78d69f7da17bfab2e5e | affected | git | 7bff0156d13f0ad9436e5178b979b063d59f572a | Unavailable | None listed |
| 6639b6c2367f884ca172b78d69f7da17bfab2e5e | affected | git | e6f103a22b08daf5df2f4aa158081840e5910963 | Unavailable | None listed |
| 6639b6c2367f884ca172b78d69f7da17bfab2e5e | affected | git | dc1a5dd80af1ee1f29d8375b12dd7625f6294dad | Unavailable | None listed |
| 6639b6c2367f884ca172b78d69f7da17bfab2e5e | affected | git | 930e69757b74c3ae083b0c3c7419bfe7f0edc7b2 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.13 | Unavailable | None listed |
| 5.10.249 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.199 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.162 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.122 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.68 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.8 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |