Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / kernel | affected kernel 5.16 rc2 |
CWE
CWE-367
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2025645
- https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=353050be4c19e102178ccc05988101887c25ae53
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.