netdev - Re: [PATCH v2] samples: bpf: fix: seg fault with NULL pointer arg

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Message-ID: <30061d06-d91e-738e-3a8b-3c94889f649a@iogearbox.net>
Date:   Mon, 3 Dec 2018 23:59:46 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     "Daniel T. Lee" <danieltimlee@...il.com>,
        Alexei Starovoitov <ast@...nel.org>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH v2] samples: bpf: fix: seg fault with NULL pointer arg

On 12/03/2018 11:39 AM, Daniel T. Lee wrote:
> When NULL pointer accidentally passed to write_kprobe_events,
> due to strlen(NULL), segmentation fault happens.
> Changed code returns -1 to deal with this situation.
> 
> Bug issued with Smatch, static analysis.
> 
> Signed-off-by: Daniel T. Lee <danieltimlee@...il.com>

Applied to bpf-next, thanks!