netdev - Re: [PATCH bpf-next 0/4] fixes for bpf_jit

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Date:   Wed, 16 Mar 2022 22:30:11 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Hou Tao <houtao1@...wei.com>
Cc:     ast@...nel.org, kafai@...com, songliubraving@...com,
        john.fastabend@...il.com, yhs@...com, daniel@...earbox.net,
        andrii@...nel.org, davem@...emloft.net, kuba@...nel.org,
        kpsingh@...nel.org, netdev@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH bpf-next 0/4] fixes for bpf_jit_harden race

Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@...nel.org>:

On Wed, 9 Mar 2022 20:33:17 +0800 you wrote:
> Hi,
> 
> Now bpf_jit_harden will be tested twice for each subprog if there are
> subprogs in bpf program and constant blinding may increase the length of
> program, so when running "./test_progs -t subprogs" and toggling
> bpf_jit_harden between 0 and 2, extra pass in bpf_int_jit_compile() may
> fail because constant blinding increases the length of subprog and
> the length is mismatched with the first pass.
> 
> [...]

Here is the summary with links:
  - [bpf-next,1/4] bpf, x86: Fall back to interpreter mode when extra pass fails
    https://git.kernel.org/bpf/bpf-next/c/73e14451f39e
  - [bpf-next,2/4] bpf: Introduce bpf_int_jit_abort()
    (no matching commit)
  - [bpf-next,3/4] bpf: Fix net.core.bpf_jit_harden race
    https://git.kernel.org/bpf/bpf-next/c/d2a3b7c5becc
  - [bpf-next,4/4] selftests/bpf: Test subprog jit when toggle bpf_jit_harden repeatedly
    https://git.kernel.org/bpf/bpf-next/c/ad13baf45691

You are awesome, thank you!
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