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CVE-2026-43306

MEDIUM · CVSS 5.5 EPSS 0.01%

Source: NVD + CISA KEV + EPSS · Published: 2026-05-08 · Last synced: 2026-06-07

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CVE
CVE-2026-43306
Severity
MEDIUM
CVSS
5.5
EPSS
0.01%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: bpf: crypto: Use the correct destructor kfunc type With CONFIG_CFI enabled, the kernel strictly enforces that indirect function calls use a function pointer type that matches the target function. I ran into the following type mismatch when running BPF self-tests: CFI failure at bpf_obj_free_fields+0x190/0x238 (target: bpf_crypto_ctx_release+0x0/0x94; expected type: 0xa488ebfc) Internal error: Oops - CFI: 00000000f2008228 [#1] SMP ... As bpf_crypto_ctx_release() is also used in BPF programs and using a void pointer as the argument would make the verifier unhappy, add a simple stub function with the correct type and register it as the destructor kfunc instead.