CVE-2026-98613Medium· 4.4▾ SunlitA flaw was found in the Linux kernel's BPF (Berkeley Packet Filter) subsystem. A local user with permissions to load BPF programs can trigger a Denial of Service (DoS) by creating deeply nested or cyclical object references using local ker…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 24.2 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Oct 20.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CSAF
0.2%
Last analysed / modified upstream
— → 4.4
none → medium
0.2% → 0.2%
A flaw was found in the Linux kernel's BPF (Berkeley Packet Filter) subsystem. A local user with permissions to load BPF programs can trigger a Denial of Service (DoS) by creating deeply nested or cyclical object references using local kernel pointers. During object cleanup, synchronous recursive processing can exhaust available kernel stack space, resulting in a system crash.
kernel: bpf: Bound ownership depth through local kptrs and graph roots — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-21.
Affected:
No fix planned:
Not affected:
Fix deferred
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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