Description
arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.
Published: 2021-09-20
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2941-1 linux-4.19 security update
Debian DSA Debian DSA DSA-5096-1 linux security update
EUVD EUVD EUVD-2021-24755 arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.
History

Sat, 12 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00033}

epss

{'score': 0.00045}


Subscriptions

Debian Debian Linux
Linux Linux Kernel
Netapp Cloud Backup H300e H300e Firmware H300s H300s Firmware H410c H410c Firmware H410s H410s Firmware H500e H500e Firmware H500s H500s Firmware H700e H700e Firmware H700s H700s Firmware
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T01:37:16.284Z

Reserved: 2021-08-09T00:00:00.000Z

Link: CVE-2021-38300

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-20T06:15:06.623

Modified: 2024-11-21T06:16:45.207

Link: CVE-2021-38300

cve-icon Redhat

Severity : Important

Publid Date: 2021-09-14T00:00:00Z

Links: CVE-2021-38300 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses