CVE-2021-30002

MEDIUM

Linux Kernel < 5.11.3 - Memory Leak in V4L2 IOCTL Handler

Title source: llm
STIX 2.1

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)

Core 4
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.suse.com/show_bug.cgi?id=1184120
Patch, Vendor Advisory x_refsource_misc
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.3
Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

Scores

CVSS v3 6.2
EPSS 0.0037
EPSS Percentile 28.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (2)
debian/debian_linux 9.0
linux/linux_kernel < 5.11.3
Published Apr 02, 2021
Tracked Since Feb 18, 2026