CVE-2021-4001 (GCVE-0-2021-4001)
Vulnerability from cvelistv5
Published
2022-01-21 00:00
Modified
2026-10-08 21:03
Severity ?
CWE
Summary
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.
References
Impacted products
Vendor Product Version
n/a kernel Version: kernel 5.16 rc2
Show details on NVD website

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