CVE-2026-53033

A flaw was found in the Linux kernel's sockmap functionality. A race condition exists in the unix_stream_bpf_update_proto() function when a BPF (Berkeley Packet Filter) iterator program updates a sockmap. This can lead to a use-after-free (UaF) vulnerability, where memory is accessed after it has been freed. An attacker could potentially exploit this to cause a denial of service or achieve arbitrary code execution.

This CVE has been rated as Moderate because eBPF (and XDP) is restricted to root-only on Red Hat Enterprise Linux.

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.