CVE-2026-31473

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-31473

Key Details

CVE	CVE-2026-31473
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel
Classified as	CWE-416 (Use After Free)

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-31473
CVE	https://www.cve.org/CVERecord?id=CVE-2026-31473

Source

Reference

NVD

CVE