CVE-2026-31473

Katalog CVE

CVSS 7.8 · High EPSS 0,17%

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

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex MEDIA_REQUEST_IOC_REINIT can run concurrently with VIDIOC_REQBUFS(0) queue teardown paths. This can race request object cleanup against vb2 queue cancellation and lead to use-after-free reports. We already serialize request queueing against STREAMON/OFF with req_queue_mutex. Extend that serialization to REQBUFS, and also take the same mutex in media_request_ioctl_reinit() so REINIT is in the same exclusion domain. This keeps request cleanup and queue cancellation from running in parallel for request-capable devices.

Rincian

Terbit di NVD

22 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/1a0d9083c24fbd5d22f7100f09d11e4d696a5f01 patch
• https://git.kernel.org/stable/c/2c685e99efb3b3bd2b78699fba6b1cf321975db0 patch
• https://git.kernel.org/stable/c/331242998a7ade5c2f65e14988901614629f3db5 patch
• https://git.kernel.org/stable/c/585fd9a2063dacce8b2820f675ef23d5d17434c5 patch
• https://git.kernel.org/stable/c/72b9e81e0203f03c40f3adb457f55bd4c8eb112d patch
• https://git.kernel.org/stable/c/bef4f4a88b73e4cc550d25f665b8a9952af22773 patch
• https://git.kernel.org/stable/c/cf2023e84f0888f96f4b65dc0804e7f3651969c1 patch
• https://git.kernel.org/stable/c/d8549a453d5bdc0a71de66ad47a1106703406a56 patch