CVE-2026-53035

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

Description A deadlock can occur in the Linux kernel within the bpf and sockmap components. The issue arises when the bpf iter unix seq show() function is executed and lock sock fast() takes the fast path while the iterator program attempts to update a sockmap. This sequence leads to recursive locking where the system attempts to acquire a lock already held by the task, specifically spinning at the bh lock sock() function within sock map update elem(). This results in a system deadlock.

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