CVE-2026-43306

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