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Date:   Tue, 26 May 2020 23:27:39 +0200
From:   Daniel Borkmann <>
To:     Andrea Claudi <>,
Subject: Re: [iproute2 PATCH 0/2] Fix segfault in lib/bpf.c

On 5/26/20 6:04 PM, Andrea Claudi wrote:
> Jamal reported a segfault in bpf_make_custom_path() when custom pinning is
> used. This is caused by commit c0325b06382cb ("bpf: replace snprintf with
> asprintf when dealing with long buffers").
> As the only goal of that commit is to get rid of a truncation warning when
> compiling lib/bpf.c, revert it and fix the warning checking for snprintf
> return value
> Andrea Claudi (2):
>    Revert "bpf: replace snprintf with asprintf when dealing with long
>      buffers"
>    bpf: Fixes a snprintf truncation warning
>   lib/bpf.c | 155 +++++++++++++++---------------------------------------
>   1 file changed, 41 insertions(+), 114 deletions(-)

Thanks for following up, Andrea! For the two:

Acked-by: Daniel Borkmann <>

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