Disclosure summary
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.
Source-reported weakness categories
CWE-200, NVD-CWE-Other
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2021-20320
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| linux | linux_kernel | * {"versionEndExcluding":"5.15"} |
| linux | linux_kernel | 5.15 |
| linux | linux_kernel | 5.15 |
| linux | linux_kernel | 5.15 |
| fedoraproject | fedora | 34 |
| redhat | enterprise_linux | 7.0 |
| redhat | enterprise_linux | 8.0 |
Original records & references
- NIST NVD record
- CVE Program record
- bugzilla.redhat.com — Issue Tracking, Third Party Advisory
- lore.kernel.org
- bugzilla.redhat.com — Issue Tracking, Third Party Advisory
- lore.kernel.org
PUBLISHED 2022-02-18T13:15:08-05:00
MODIFIED 2026-10-08T17:17:33-04:00
INGESTED 2026-10-10T20:50:21-04:00