syzbot has bisected this bug to: commit 33ea4b24277b06dbc55d7f5772a46f029600255e Author: Song Liu <songliubraving@xxxxxx> Date: Wed Dec 6 22:45:16 2017 +0000 perf/core: Implement the 'perf_uprobe' PMU bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17561aa1a00000 start commit: abf02e29 Merge tag 'pm-5.2-rc6' of git://git.kernel.org/pu.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=14d61aa1a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=10d61aa1a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=28ec3437a5394ee0 dashboard link: https://syzkaller.appspot.com/bug?extid=704bfe2c7d156640ad7a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16d8b732a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17f7a5e6a00000 Reported-by: syzbot+704bfe2c7d156640ad7a@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 33ea4b24277b ("perf/core: Implement the 'perf_uprobe' PMU") For information about bisection process see: https://goo.gl/tpsmEJ#bisection