CVE-2026-90032

Katalog CVE

CVSS 7.8 · High EPSS 0,15%

Skor CVSS 3.1 7.8 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: media: usbtv: keep device alive while ALSA card exists The ALSA PCM callbacks store the driver state in pcm->private_data. An open PCM file can outlive USB disconnect because usbtv_audio_free() uses snd_card_free_when_closed(). The disconnect path can then drop the V4L2 device reference and free struct usbtv before ALSA releases the substream, so a later close dereferences freed memory in snd_usbtv_pcm_close(). Take a V4L2 device reference for the ALSA card and drop it from the card private_free callback. This keeps struct usbtv valid until ALSA has closed the remaining files and freed the card.

Rincian

Terbit di NVD

16 September 2026

Terakhir diubah

16 September 2026

Status NVD

Received

CVSS 3.1

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

EPSS (30 hari)

0,15% peluang dieksploitasi; lebih tinggi dari 3,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/1618257cb0aba4ce342ae8c0228368c24161f5fb
• https://git.kernel.org/stable/c/239d1683e08b2aee2a15ef35706e1ea9a76681d8
• https://git.kernel.org/stable/c/503be26ff888cb3576e55d251895d290e8146f27
• https://git.kernel.org/stable/c/67374e3a00814dcdd46e9feca61f69f7f2d81957
• https://git.kernel.org/stable/c/7690a86b193271322cd31ab77349a87aa10858e4
• https://git.kernel.org/stable/c/97b5e8b22b98e287481a97a9a4cfebbb348738a5
• https://git.kernel.org/stable/c/be0f7745f883386e5263b4e475686a81dfa87175
• https://git.kernel.org/stable/c/fc530fe168bb2b745a93f553ad21fc25fd9cba3d