PT-2024-11172 · Linux+2 · Linux Kernel+2

Published 2021-05-27 · Updated 2025-01-07 · CVE-2021-47120

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 A vulnerability has been resolved in the Linux kernel. The issue is related to the HID magicmouse driver, where a sanity check for an Apple trackpad was added but returned success instead of -ENODEV when the check failed. This causes the remove callback to dereference a never-initialised driver data pointer when the driver is later unbound, such as on USB disconnect.

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:2025-07271

CVE-2021-47120

OPENSUSE-SU-2024_1489-1

SUSE-SU-2024:1454-1

SUSE-SU-2024:1465-1

SUSE-SU-2024:1489-1

Affected Products

Astra Linux

Linux Kernel

Suse

References · 349

• https://git.kernel.org/stable/c/368c5d45a87e1bcc7f1e98e0c255c37b7b12c5d6 · Patch
• https://security-tracker.debian.org/tracker/CVE-2021-47120 · Vendor Advisory
• https://git.kernel.org/stable/c/9cf27473f21913a3eaf4702dd2a25415afd5f33f · Patch
• https://git.kernel.org/stable/c/4b4f6cecca446abcb686c6e6c451d4f1ec1a7497 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-47120 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2024:1454-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:1489-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-47120 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-47120 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-47120 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-47120 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-07271 · Security Note
• https://cve.org/CVERecord?id=CVE-2021-47120 · Security Note
• https://git.kernel.org/stable/c/b5d013c4c76b276890135b5d32803c4c63924b77 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1465-1 · Vendor Advisory