linux-kernel - Re: [PATCH bpf] bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE

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Date:   Wed, 02 Nov 2022 11:10:15 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Pu Lehui <pulehui@...weicloud.com>
Cc:     bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        quentin@...valent.com, ast@...nel.org, daniel@...earbox.net,
        andrii@...nel.org, martin.lau@...ux.dev, song@...nel.org,
        yhs@...com, john.fastabend@...il.com, kpsingh@...nel.org,
        sdf@...gle.com, haoluo@...gle.com, jolsa@...nel.org,
        pulehui@...wei.com
Subject: Re: [PATCH bpf] bpftool: Fix NULL pointer dereference when pin {PROG,
 MAP, LINK} without FILE

Hello:

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

On Wed,  2 Nov 2022 16:40:34 +0800 you wrote:
> From: Pu Lehui <pulehui@...wei.com>
> 
> When using bpftool to pin {PROG, MAP, LINK} without FILE,
> segmentation fault will occur. The reson is that the lack
> of FILE will cause strlen to trigger NULL pointer dereference.
> The corresponding stacktrace is shown below:
> 
> [...]

Here is the summary with links:
  - [bpf] bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE
    https://git.kernel.org/bpf/bpf/c/34de8e6e0e1f

You are awesome, thank you!
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