Re: [PATCH] libbpf: Fix signedness bug in btf_dump_array_data()

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Subject: Re: [PATCH] libbpf: Fix signedness bug in btf_dump_array_data()
From: Yonghong Song <yhs@xxxxxx>
Date: Tue, 8 Feb 2022 08:08:03 -0800
Cc: Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, Martin KaFai Lau <kafai@xxxxxx>, Song Liu <songliubraving@xxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, <bpf@xxxxxxxxxxxxxxx>, <kernel-janitors@xxxxxxxxxxxxxxx>
In-reply-to: <20220208071552.GB10495@kili>
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Thunderbird/91.5.1



On 2/7/22 11:15 PM, Dan Carpenter wrote:

The btf__resolve_size() function returns negative error codes so
"elem_size" must be signed for the error handling to work.

Fixes: 920d16af9b42 ("libbpf: BTF dumper support for typed data")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>


Acked-by: Yonghong Song <yhs@xxxxxx>

References:
- [PATCH] libbpf: Fix signedness bug in btf_dump_array_data()
  - From: Dan Carpenter

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