PT-2025-53938 · Linux · Linux Kernel

Published 2025-12-30 · Updated 2026-01-01 · CVE-2022-50820

Positive Technologies (AI Summary)

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

Description A flaw exists in the Linux kernel’s dmc620 pmu init() function within the perf/arm dmc620 module. The function fails to remove a callback added by cpuhp setup state multi() when platform driver register() fails, leading to a hotplug callback leak. This issue is similar to a previously addressed problem in arm ccn init().

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

Exploit

Related Identifiers

CVE-2022-50820

RHSA-2023:6583

Affected Products

Linux Kernel

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50820.json · Exploit
• https://osv.dev/vulnerability/CVE-2022-50820 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50820 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50820 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50820 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50820 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50820 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-50820 · Security Note
• https://git.kernel.org/stable/c/d9f564c966e63925aac4ba273a9319d7fb6f4b4e · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/linus/d9f564c966e63925aac4ba273a9319d7fb6f4b4e · Note
• https://git.kernel.org/stable/c/b99fbe8d949a99fe456f08c7aad421327685aa50 · Note
• https://git.kernel.org/stable/c/adf7c3bbcc819db6e95b6a61c9822230f0ef4778 · Note
• https://lore.kernel.org/linux-cve-announce/2025123016-CVE-2022-50820-c3d9@gregkh/T · Note
• https://twitter.com/CVEnew/status/2006861528159420595 · Twitter Post