CVE-2026-90046

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

Description An issue exists in the memory management subsystem where the use of spin trylock() within a Non-Maskable Interrupt (NMI) on Uniprocessor (UP) systems is unsafe. This occurs specifically during the freeing of pages. If BPF programs utilizing these features in NMI are present on non-SMP builds, it may lead to a kernel crash and could potentially be exploited by local attackers to achieve privilege escalation.

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