CVE-2024-35895

CVE-2024-35895 addresses a vulnerability in the Linux kernel's Berkeley Packet Filter (BPF) subsystem, specifically within the sockmap feature. The issue arises when BPF tracing programs, which can execute in various interrupt contexts, attempt to delete elements from sockmap or sockhash maps. This operation involves acquiring locks that are not safe for use in hard interrupt contexts, leading to potential deadlocks due to lock inversion.

BPF tracing programs may delete elements from sockmap/sockhash maps while running in interrupt contexts where the required locks are not hardirq-safe, causing possible deadlocks.

System hangs or crashes due to deadlocks when deleting elements from sockmap/sockhash maps in inappropriate contexts.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.