syzbot suspects this bug was fixed by commit: commit a8e911d13540487942d53137c156bd7707f66e5d Author: Qian Cai <cai@xxxxxx> Date: Fri Feb 1 22:20:20 2019 +0000 x86_64: increase stack size for KASAN_EXTRA bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10364f3c600000 start commit: f5d58277 Merge branch 'for-linus' of git://git.kernel.org/.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=c8970c89a0efbb23 dashboard link: https://syzkaller.appspot.com/bug?extid=1145ec2e23165570c3ac syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16803afb400000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: x86_64: increase stack size for KASAN_EXTRA For information about bisection process see: https://goo.gl/tpsmEJ#bisection