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Date:   Thu, 15 Aug 2019 08:51:42 +0100
From:   Will Deacon <>
To:     syzbot <>,
Subject: Re: WARNING in is_bpf_text_address

Hi Bart,

On Sat, Aug 10, 2019 at 05:24:06PM -0700, syzbot wrote:
> syzbot has found a reproducer for the following crash on:
> HEAD commit:    451577f3 Merge tag 'kbuild-fixes-v5.3-3' of git://git.kern..
> git tree:       upstream
> console output:
> kernel config:
> dashboard link:
> compiler:       clang version 9.0.0 (/home/glider/llvm/clang
> 80fee25776c2fb61e74c1ecb1a523375c2500b69)
> syz repro:
> C reproducer:
> The bug was bisected to:
> commit a0b0fd53e1e67639b303b15939b9c653dbe7a8c4
> Author: Bart Van Assche <>
> Date:   Thu Feb 14 23:00:46 2019 +0000
>     locking/lockdep: Free lock classes that are no longer in use
> bisection log:
> final crash:
> console output:

I know you don't think much to these reports, but please could you have a
look (even if it's just to declare it a false positive)?



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