kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8751 Comm: syz-executor.2 Not tainted 5.2.0-rc3-next-20190607 #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:fire_user_return_notifiers+0xad/0x150 kernel/user-return-notifier.c:42
Code: 00 00 00 00 00 fc ff df 75 10 eb 41 e8 0c 40 e6 ff 4c 89 e3 48 83 eb 08 74 33 e8 fe 3f e6 ff 48 8d 7b 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 75 69 48 89 d8 4c 8b 63 08 48 c1 e8 03 42 80 3c 28
RSP: 0018:ffff888092e77eb0 EFLAGS: 00010a02
RAX: 1bd5a00000000020 RBX: dead0000000000f8 RCX: ffffffff810bb7d7
RDX: 0000000000000000 RSI: ffffffff818a9dc2 RDI: dead000000000100
RBP: ffff888092e77ed0 R08: ffff888088872440 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000100
R13: dffffc0000000000 R14: ffff888092e77f58 R15: ffff888088872440
FS:  0000555556f08940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000950b5000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000b DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 exit_to_usermode_loop+0x1a4/0x2c0 arch/x86/entry/common.c:173
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:279 [inline]
 do_syscall_64+0x58e/0x680 arch/x86/entry/common.c:304
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457720
Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 31 f0 61 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 24 d3 fb ff c3 48 83 ec 08 e8 ea 46 00 00
RSP: 002b:00007ffd550f75b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
RAX: 0000000000000000 RBX: 000000000009b45d RCX: 0000000000457720
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd550f75c0
RBP: 0000000000000995 R08: 0000000000000001 R09: 0000555556f08940
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000f
R13: 00007ffd550f7610 R14: 000000000009b0f2 R15: 00007ffd550f7620
Modules linked in:
---[ end trace 4a8375be7fb90926 ]---
RIP: 0010:fire_user_return_notifiers+0xad/0x150 kernel/user-return-notifier.c:42
Code: 00 00 00 00 00 fc ff df 75 10 eb 41 e8 0c 40 e6 ff 4c 89 e3 48 83 eb 08 74 33 e8 fe 3f e6 ff 48 8d 7b 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 75 69 48 89 d8 4c 8b 63 08 48 c1 e8 03 42 80 3c 28
RSP: 0018:ffff888092e77eb0 EFLAGS: 00010a02
RAX: 1bd5a00000000020 RBX: dead0000000000f8 RCX: ffffffff810bb7d7
RDX: 0000000000000000 RSI: ffffffff818a9dc2 RDI: dead000000000100
RBP: ffff888092e77ed0 R08: ffff888088872440 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000100
R13: dffffc0000000000 R14: ffff888092e77f58 R15: ffff888088872440
FS:  0000555556f08940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000950b5000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 000000000000000b DR6: 00000000fffe0ff0 DR7: 0000000000000400