netdev - Re: [PATCH bpf-next] libbpf: fix realloc usage in bpf_core_find

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Message-ID: <29074cbf-791c-8d3c-1b94-cd77e9a02c3f@iogearbox.net>
Date:   Fri, 24 Jan 2020 22:35:43 +0100
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Andrii Nakryiko <andriin@...com>, bpf@...r.kernel.org,
        netdev@...r.kernel.org, ast@...com, williampsmith@...com
Cc:     andrii.nakryiko@...il.com, kernel-team@...com
Subject: Re: [PATCH bpf-next] libbpf: fix realloc usage in bpf_core_find_cands

On 1/24/20 9:18 PM, Andrii Nakryiko wrote:
> Fix bug requesting invalid size of reallocated array when constructing CO-RE
> relocation candidate list. This can cause problems if there are many potential
> candidates and a very fine-grained memory allocator bucket sizes are used.
> 
> Fixes: ddc7c3042614 ("libbpf: implement BPF CO-RE offset relocation algorithm")
> Reported-by: William Smith <williampsmith@...com>
> Signed-off-by: Andrii Nakryiko <andriin@...com>

Applied, thanks!