PT-2025-53970 · Mt7921+2 · Mt7921+2

Published 2022-09-15 · Updated 2025-12-30 · CVE-2022-50852

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:L/AC:L/Au:M/C:P/I:N/A:C

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

Description The Linux kernel contains a flaw within the mt76 and mt7921 components. Specifically, a use-after-free condition exists in the mt7921 acpi read() function. This occurs when the sar root pointer is dereferenced after it has been freed, potentially leading to system instability or other undefined behavior.

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

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2026-01147

CVE-2022-50852

Affected Products

Linux Kernel

Mt76

Mt7921

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50852.json · Exploit
• https://security-tracker.debian.org/tracker/CVE-2022-50852 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50852 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50852 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50852 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-01147 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-50852 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50852 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50852 · Security Note
• https://git.kernel.org/stable/c/3ed0b382cb36f6dac9f93b3a5533cfcd699409a5 · Note
• https://git.kernel.org/linus/e7de4b4979bd8d313ec837931dde936653ca82ea · Note
• https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.3 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://lore.kernel.org/linux-cve-announce/2025123045-CVE-2022-50852-978e@gregkh · Note
• https://git.kernel.org/stable/c/e7de4b4979bd8d313ec837931dde936653ca82ea · Note