CVE-2024-56702: bpf: Mark raw_tp arguments with PTR_MAYBE_NULL

mediumCVSS 5.5CVE-2024-56702

CSIRTS triage

vendor: Linux product: Linux kernel Memory corruption

What: Raw tracepoint arguments are not properly marked as potentially NULL, leading to possible null pointer dereference.
Who is affected: Systems running affected Linux kernel versions with BPF raw tracepoint support enabled.
Urgency: Medium priority; kernel memory safety issue with potential for denial of service.
Action: Apply Linux kernel patch marking raw_tp arguments with PTR_MAYBE_NULL or update to patched 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-2024-56702

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-2024-567020.21% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 12% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2024-56702	coverage & exploitation status	NVD · CVE.org

Recent advisories for bpf

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

mediumCVE-2024-42151: bpf: mark bpf_dummy_struct_ops.test_1 parameter as nullablemsrc · 2026-08-06
mediumCVE-2026-23383: bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearingmsrc · 2026-08-06
mediumCVE-2023-52920: bpf: support non-r10 register spill/fill to/from stack in precision trackingmsrc · 2026-08-06
highCVE-2026-45932: bpf: Fix tcx/netkit detach permissions when prog fd isn't givenmsrc · 2026-08-06
mediumCVE-2025-37959: bpf: Scrub packet on bpf_redirect_peermsrc · 2026-08-06
mediumCVE-2024-56665: bpf,perf: Fix invalid prog_array access in perf_event_detach_bpf_progmsrc · 2026-08-06