Updated: 2026-03-05 03:42:08.6265
Description:
An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.1 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.1 | HIGH | Already Fixed | 2024-08-26 12:37:21 | ||
| CentOS 6 ELS | kernel | 2.6.32 | 7.1 | HIGH | Not Vulnerable | 2025-07-26 04:19:16 | Not affected: CVE-2021-4204 targets the kernel’s eBPF ring-buffer helpers and relies on the eBPF s... | |
| CentOS 7 ELS | kernel | 3.10.0 | 7.1 | HIGH | Not Vulnerable | 2024-04-09 14:16:32 | CVE-2021-4204 targets the eBPF ring buffer helpers (bpf_ringbuf_submit/discard) introduced in Linux ... | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.1 | HIGH | Released | CLSA-2025:1747688514 | 2025-05-21 01:47:13 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.1 | HIGH | Released | CLSA-2025:1747688831 | 2025-05-21 01:47:13 | |
| CentOS Stream 8 ELS | kernel | 4.18.0 | 7.1 | HIGH | Already Fixed | 2025-07-22 00:48:40 | ||
| CloudLinux 6 ELS | kernel | 2.6.32 | 7.1 | HIGH | Ignored | 2022-09-01 05:02:23 | ||
| Oracle Linux 6 ELS | kernel | 2.6.32 | 7.1 | HIGH | Not Vulnerable | 2025-07-26 04:19:16 | Not affected: CVE-2021-4204 targets the kernel’s eBPF ring-buffer helpers and relies on the eBPF s... | |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.1 | HIGH | Not Vulnerable | 2022-10-04 14:02:39 | Not affected: CVE-2021-4204 targets the eBPF ring buffer helpers (bpf_ringbuf_submit/bpf_ringbuf_dis... | |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 7.1 | HIGH | Not Vulnerable | 2023-02-09 13:05:31 | Not affected: CVE-2021-4204 targets the eBPF ring buffer helpers (bpf_ringbuf_submit/bpf_ringbuf_dis... |