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.
| Reporter | Title | Published | Views | Family All 284 |
|---|---|---|---|---|
 | CVE-2021-4001 | 21 Jan 202219:15 | – | attackerkb |
 | Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-008) | 7 Dec 202200:00 | – | nessus |
| Amazon Linux 2 : kernel (ALASKERNEL-5.10-2024-049) | 6 Feb 202400:00 | – | nessus |
| Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-010) | 6 Feb 202400:00 | – | nessus |
| Amazon Linux 2 : kernel (ALASKERNEL-5.4-2025-093) | 4 Feb 202500:00 | – | nessus |
| CentOS 9 : kernel-5.14.0-347.el9 | 29 Feb 202400:00 | – | nessus |
| openSUSE 15 Security Update : kernel (openSUSE-SU-2022:0056-1) | 12 Jan 202200:00 | – | nessus |
| openSUSE 15 Security Update : kernel (openSUSE-SU-2022:0131-1) | 20 Jan 202200:00 | – | nessus |
| Photon OS 4.0: Linux PHSA-2021-4.0-0065 | 22 Jul 202100:00 | – | nessus |
| SUSE SLES15: kernel-azure / kernel-azure-devel / kernel-devel-azure / etc (SUSE-SU-2022:0056-1) | 12 Jan 202200:00 | – | nessus |
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29 Jan 2022 08:00Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.14.1
CVSS 24.7
EPSS0.00186