PT-2025-53137 · Linux · Linux Kernel

Published 2025-12-24 · Updated 2025-12-25 · CVE-2022-50771

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.0.0-rc1-yoctodev-standard+

Description The Linux kernel contains an issue where the rcu force quiescent state() function uses this cpu read() in preemptible code instead of raw cpu read(). This can lead to a lockdep warning when running rcutorture with a non-zero fqs duration module parameter in a kernel built with CONFIG PREEMPTION=y. The issue manifests as a BUG related to using this cpu read() in a preemptible context. The fix involves changing this cpu read() to raw cpu read().

Recommendations Update to a version of the Linux kernel that includes the fix, such as 6.0.0-rc1-yoctodev-standard+ or later.

Exploit

Related Identifiers

CVE-2022-50771

RHSA-2023:6583

Affected Products

Linux Kernel

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50771.json · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50771 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50771 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50771 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50771 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50771 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-50771 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-50771 · Security Note
• https://git.kernel.org/stable/c/ceb1c8c9b8aa9199da46a0f29d2d5f08d9b44c15 · Note
• https://twitter.com/CVEnew/status/2004294887638782430 · Twitter Post
• https://git.kernel.org/stable/c/98a5b1265a36e9d843a51ddd6c9fa02da50d2c57 · Note
• https://lore.kernel.org/linux-cve-announce/2025122458-CVE-2022-50771-3440@gregkh/T · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/stable/c/5a52380b8193cf8be6c4a6b94b86ef64ed80c0dc · Note
• https://git.kernel.org/stable/c/80a3e7ab477b3655615fc1627c88c248d4ad28d9 · Note