CVE-2021-20320

State: Published
Severity: Not scored
Published: Feb 18, 2022
Updated: Oct 8, 2026
Reserved: Dec 17, 2020

Description

A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.

Scores

The record has no CVSS score.

Weaknesses

CWE-200

Affected Products

Product	Versions
kerneln/a	kernel 5.15 rc3Affected

References

https://bugzilla.redhat.com/show_bug.cgi?id=2010090
https://lore.kernel.org/bpf/20210902185229.1840281-1-johan.almbladh%40anyfinetworks.com/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.