CVE-2024-42151: bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullable

mediumCVSS 5.5CVE-2024-42151

CSIRTS triage

vendor: Linux product: Linux kernel Memory corruption

What: bpf_dummy_struct_ops.test_1 function parameter is not marked as nullable, risking null pointer dereference.
Who is affected: Systems running BPF programs that interact with the dummy struct_ops interface.
Urgency: Medium; null pointer dereference can crash kernel or leak information.
Action: Apply kernel patch or update to a fixed Linux kernel version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 5.5
Published: 2026-08-06
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-42151

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2024-421510.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-42151	coverage & exploitation status	NVD · CVE.org

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