CVE-2021-30002

MEDIUM

Linux kernel <5.11.3 - Memory Leak

Title source: llm

Description

An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in drivers/media/v4l2-core/v4l2-ioctl.c has a memory leak for large arguments, aka CID-fb18802a338b.

References (4)

[Issue Tracking, Third Party Advisory] https://bugzilla.suse.com/show_bug.cgi?id=1184120

[Patch, Vendor Advisory] https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.3

[Patch, Vendor Advisory] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb18802a338b36f675a388fc03d2aa504a0d0899

[Third Party Advisory] https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

Scores

CVSS v3 6.2

EPSS 0.0003

EPSS Percentile 8.3%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-401

Status published

Affected Products (2)

linux/linux_kernel < 5.11.3

debian/debian_linux

Timeline

Published Apr 02, 2021

Tracked Since Feb 18, 2026