CVE-2021-47121

MEDIUM

Linux Kernel 3.3-4.4.272 - Use-After-Free in CAIF USB Device Notification

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: net: caif: fix memory leak in cfusbl_device_notify In case of caif_enroll_dev() fail, allocated link_support won't be assigned to the corresponding structure. So simply free allocated pointer in case of error.

References (8)

Core 8

Scores

CVSS v3 5.5
EPSS 0.0023
EPSS Percentile 13.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-401
Status published
Products (20)
Linux/Linux < 3.3
Linux/Linux 3.3
Linux/Linux 4.14.236 - 4.14.*
Linux/Linux 4.19.194 - 4.19.*
Linux/Linux 4.4.272 - 4.4.*
Linux/Linux 4.9.272 - 4.9.*
Linux/Linux 5.10.43 - 5.10.*
Linux/Linux 5.12.10 - 5.12.*
Linux/Linux 5.13
Linux/Linux 5.4.125 - 5.4.*
... and 10 more
Published Mar 15, 2024
Tracked Since Feb 18, 2026