PT-2024-9071 · Linux+3 · Linux Kernel+3

Maxime Ripard · Published 2024-05-24 · Updated 2025-09-18 · CVE-2021-47533

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description: The issue is related to a use-after-free vulnerability in the Linux kernel's kms component. It occurs because a pointer is not cleared after use, which can lead to a stale pointer being copied to a new state. This can cause a denial of service. The vulnerability is related to the drm crtc commit put function and the drm/vc4 module.

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

Exploit

Use After Free

NULL Pointer Dereference

Weakness Enumeration

CWE-416

CWE-476

Related Identifiers

BDU:2024-10753

CVE-2021-47533

OPENSUSE-SU-2024_2189-1

SUSE-SU-2024:2008-1

SUSE-SU-2024:2011-1

SUSE-SU-2024:2019-1

SUSE-SU-2024:2189-1

SUSE-SU-2024:2190-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 1246

• 🔥 https://github.com/lanleft/CVE-2023-1829 · Exploit
• https://ubuntu.com/security/CVE-2021-47533 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2019-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-10753 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-47533 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:2190-1 · Vendor Advisory
• https://git.kernel.org/stable/c/d134c5ff71c7f2320fc7997f2fbbdedf0c76889a · Patch
• https://git.kernel.org/stable/c/2931db9a5ed219546cf2ae0546698faf78281b89 · Patch
• https://osv.dev/vulnerability/CVE-2021-47533 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-47533 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2008-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47533 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47533 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2189-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2011-1 · Vendor Advisory