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Date: Wed, 7 Jul 2021 20:09:36 -0700 From: Alexei Starovoitov <alexei.starovoitov@...il.com> To: He Fengqing <hefengqing@...wei.com> Cc: Song Liu <song@...nel.org>, Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, Martin KaFai Lau <kafai@...com>, Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>, John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>, "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Networking <netdev@...r.kernel.org>, bpf <bpf@...r.kernel.org>, open list <linux-kernel@...r.kernel.org> Subject: Re: [bpf-next 3/3] bpf: Fix a use after free in bpf_check() On Wed, Jul 7, 2021 at 8:00 PM He Fengqing <hefengqing@...wei.com> wrote: > > Ok, I will change this in next version. before you spam the list with the next version please explain why any of these changes are needed? I don't see an explanation in the patches and I don't see a bug in the code. Did you check what is the prog clone ? When is it constructed? Why verifier has anything to do with it?
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