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SubjectRe: BUG: stack guard page was hit in unwind_next_frame
On Sat, May 02, 2020 at 11:36:11PM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 8999dc89 net/x25: Fix null-ptr-deref in x25_disconnect
> git tree: net
> console output: https://syzkaller.appspot.com/x/log.txt?x=16004440100000
> kernel config: https://syzkaller.appspot.com/x/.config?x=b7a70e992f2f9b68
> dashboard link: https://syzkaller.appspot.com/bug?extid=e73ceacfd8560cc8a3ca
> compiler: gcc (GCC) 9.0.0 20181231 (experimental)
>
> Unfortunately, I don't have any reproducer for this crash yet.
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+e73ceacfd8560cc8a3ca@syzkaller.appspotmail.com

Infinite loop in network code.

#syz dup: BUG: stack guard page was hit in deref_stack_reg

--
Josh

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