CVE-2026-23089

Katalog CVE

CVSS 7.8 · High EPSS 0,16%

Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

4 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/51b1aa6fe7dc87356ba58df06afb9677c9b841ea patch
• https://git.kernel.org/stable/c/56fb6efd5d04caf6f14994d51ec85393b9a896c6 patch
• https://git.kernel.org/stable/c/7009daeefa945973a530b2f605fe445fc03747af patch
• https://git.kernel.org/stable/c/7bff0156d13f0ad9436e5178b979b063d59f572a patch
• https://git.kernel.org/stable/c/930e69757b74c3ae083b0c3c7419bfe7f0edc7b2 patch
• https://git.kernel.org/stable/c/dc1a5dd80af1ee1f29d8375b12dd7625f6294dad patch
• https://git.kernel.org/stable/c/e6f103a22b08daf5df2f4aa158081840e5910963 patch