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SubjectRe: KMSAN: kernel-infoleak in raw_ioctl
On Sun, Aug 09, 2020 at 09:27:18AM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: ce8056d1 wip: changed copy_from_user where instrumented
> git tree: https://github.com/google/kmsan.git master
> console output: https://syzkaller.appspot.com/x/log.txt?x=141eb8b2900000
> kernel config: https://syzkaller.appspot.com/x/.config?x=3afe005fb99591f
> dashboard link: https://syzkaller.appspot.com/bug?extid=a7e220df5a81d1ab400e
> compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
> userspace arch: i386
>
> Unfortunately, I don't have any reproducer for this issue yet.

The irony of a kernel module written for syzbot testing, causing syzbot
reports....

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