A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can …

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No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2.

Source published

21 Jan 2022 00:00:00 UTC

Source modified

8 Oct 2026 21:03:26 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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