WARNING: stack going in the wrong direction? ip=do_nanosleep

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit:    11ecafc6 Add linux-next specific files for 20200411
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1534bdb3e00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=602913252b851ac7
dashboard link: https://syzkaller.appspot.com/bug?extid=29b62ed085a5a0c6dfb6
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+29b62ed085a5a0c6dfb6@xxxxxxxxxxxxxxxxxxxxxxxxx

WARNING: stack going in the wrong direction? ip=do_nanosleep+0x15f/0x640


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