PT-2024-11100 · Linux · Linux Kernel

Dan Carpenter · Published 2021-05-06 · Updated 2024-12-06 · CVE-2021-46995

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to an error pointer dereference in the mcp251xfd probe() function. When the code was converted to use dev err probe(), a return was accidentally removed. This leads to an Oops when clk get rate() is called after devm clk get().

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2025-06529

CVE-2021-46995

Affected Products

Linux Kernel

References · 14

• https://git.kernel.org/stable/c/15f8f96ec7fc35024d4e03296e4d838fcea33d83 · Patch
• https://git.kernel.org/stable/c/4cc7faa406975b460aa674606291dea197c1210c · Patch
• https://ubuntu.com/security/CVE-2021-46995 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-06529 · Security Note
• https://osv.dev/vulnerability/CVE-2021-46995 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46995 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-46995 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-46995 · Security Note
• https://git.kernel.org/linus/4cc7faa406975b460aa674606291dea197c1210c · Note
• https://twitter.com/CVEnew/status/1762754431232487751 · Twitter Post
• https://lore.kernel.org/linux-cve-announce/2024022827-CVE-2021-46995-6757@gregkh/T/#u · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46995 · Note
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.5 · Note
• https://lore.kernel.org/linux-cve-announce/2024022827-CVE-2021-46995-6757@gregkh · Note