Re: [PATCH bpf-next v3] bpf: check attach_func_proto more carefully in check_return_code

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Hello:

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

On Fri,  8 Jul 2022 10:50:00 -0700 you wrote:
> Syzkaller reports the following crash:
> RIP: 0010:check_return_code kernel/bpf/verifier.c:10575 [inline]
> RIP: 0010:do_check kernel/bpf/verifier.c:12346 [inline]
> RIP: 0010:do_check_common+0xb3d2/0xd250 kernel/bpf/verifier.c:14610
> 
> With the following reproducer:
> bpf$PROG_LOAD_XDP(0x5, &(0x7f00000004c0)={0xd, 0x3, &(0x7f0000000000)=ANY=[@ANYBLOB="1800000000000019000000000000000095"], &(0x7f0000000300)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, 0x2b, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x80)
> 
> [...]

Here is the summary with links:
  - [bpf-next,v3] bpf: check attach_func_proto more carefully in check_return_code
    https://git.kernel.org/bpf/bpf-next/c/d1a6edecc1fd

You are awesome, thank you!
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