CVE-2021-39711

kernel: out-of-bounds read due to Incorrect size value in bpf_prog_test_run_skb() of test_run.c

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Severity

Low

Red Hat Product Security

4.4

CVSS 3.1

Review impact separately from score.

Published · March 7, 2022

Updated · November 22, 2025

Description

An out-of-bounds (OOB) read flaw was found in bpf_prog_test_run_skb in the net/bpf/test_run.c function due to an incorrect Size Value in the Linux kernel.

Statement

There was no shipped kernel version that was seen affected by this problem.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 4.4
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE-125 · Out-of-bounds Read