PT-2026-52000 · Linux · Linux Kernel

Published 2026-06-24 · Updated 2026-06-24 · CVE-2026-53106

Positive Technologies (AI Summary)

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

Description A deadlock can occur in the Linux kernel when deleting local storage within a Non-Maskable Interrupt (NMI) or reentrant context. This happens when freeing storage elements through kfree rcu(), call rcu(), or call rcu tasks trace(). The issue is specifically located in the bpf selem unlink() function, which is utilized by various helpers and syscalls.

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

Related Identifiers

CVE-2026-53106

Affected Products

Linux Kernel

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-53106 · Security Note
• https://git.kernel.org/stable/c/350de5b8a9befaa2a68861c51f671d4f5f751ca5 · Note
• https://twitter.com/VulmonFeeds/status/2069917187205136859 · Twitter Post
• https://git.kernel.org/stable/c/e84acaf936970b5b0be2c93bbf255295ba9406df · Note