Re: [PATCH 5.15.y] bpf: Enforce expected_attach_type for tailcall compatibility

From: Sasha Levin

Date: Fri Sep 11 2026 - 07:34:33 EST


> [ Upstream commit 4540aed51b12bc13364149bf95f6ecef013197c0 ]
>
> Yinhao et al. recently reported:
>
> Our fuzzer tool discovered an uninitialized pointer issue in the
> bpf_prog_test_run_xdp() function within the Linux kernel's BPF
> subsystem.

Queued for 5.15, thanks.

--
Thanks,
Sasha