Re: [syzbot] [bpf?] KMSAN: uninit-value in __bpf_strtoull

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Subject: Re: [syzbot] [bpf?] KMSAN: uninit-value in __bpf_strtoull
From: Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>
Date: Wed, 20 Mar 2024 23:45:49 -0700
Cc: syzbot+8ac8b7b2292ea867a162@xxxxxxxxxxxxxxxxxxxxxxxxx, Andrii Nakryiko <andrii@xxxxxxxxxx>, Alexei Starovoitov <ast@xxxxxxxxxx>, bpf <bpf@xxxxxxxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Eddy Z <eddyz87@xxxxxxxxx>, Hao Luo <haoluo@xxxxxxxxxx>, John Fastabend <john.fastabend@xxxxxxxxx>, Jiri Olsa <jolsa@xxxxxxxxxx>, KP Singh <kpsingh@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Martin KaFai Lau <martin.lau@xxxxxxxxx>, Stanislav Fomichev <sdf@xxxxxxxxxx>, Song Liu <song@xxxxxxxxxx>, syzkaller-bugs <syzkaller-bugs@xxxxxxxxxxxxxxxx>, Yonghong Song <yonghong.song@xxxxxxxxx>, samsun1006219@xxxxxxxxx
In-reply-to: <CABOYnLxfFXYV5mJfNrTKEdohF6_AUFxb3fPHEF=eaCEio3dv9w@mail.gmail.com>

On Wed, Mar 20, 2024 at 11:41 PM xingwei lee <xrivendell7@xxxxxxxxx> wrote:
>
> Hello, I reproduced this bug and comfired in the latest net tree.
>
> If you fix this issue, please add the following tag to the commit:

Maybe you can fix the issue ?
Or at least debug it and analyze where the bug is?

References:
- Re: [syzbot] [bpf?] KMSAN: uninit-value in __bpf_strtoull
  - From: xingwei lee

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