Re: [PATCH bpf-next] bpf: Check attach_func_proto more carefully in check_helper_call

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Hello:

This patch was applied to bpf/bpf-next.git (master)
by Daniel Borkmann <daniel@xxxxxxxxxxxxx>:

On Wed, 20 Jul 2022 09:47:29 -0700 you wrote:
> Syzkaller found a problem similar to d1a6edecc1fd ("bpf: Check
> attach_func_proto more carefully in check_return_code") where
> attach_func_proto might be NULL:
> 
> RIP: 0010:check_helper_call+0x3dcb/0x8d50 kernel/bpf/verifier.c:7330
>  do_check kernel/bpf/verifier.c:12302 [inline]
>  do_check_common+0x6e1e/0xb980 kernel/bpf/verifier.c:14610
>  do_check_main kernel/bpf/verifier.c:14673 [inline]
>  bpf_check+0x661e/0xc520 kernel/bpf/verifier.c:15243
>  bpf_prog_load+0x11ae/0x1f80 kernel/bpf/syscall.c:2620
> 
> [...]

Here is the summary with links:
  - [bpf-next] bpf: Check attach_func_proto more carefully in check_helper_call
    https://git.kernel.org/bpf/bpf-next/c/aef9d4a34a51

You are awesome, thank you!
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