BUG: unable to handle kernel paging request at fffffffffffffc54
PGD 9e6e067 P4D 9e6e067 PUD 9e70067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 22145 Comm: syz-executor.3 Not tainted 4.19.198-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:mm_update_next_owner+0x376/0x650 kernel/exit.c:450
Code: c5 29 00 48 8d bd 54 fc ff ff 48 89 f8 48 c1 e8 03 0f b6 14 18 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 26 02 00 00 <44> 8b ad 54 fc ff ff 31 ff 41 81 e5 00 00 20 00 44 89 ee e8 c2 c6
RSP: 0018:ffff888219187d50 EFLAGS: 00010246
RAX: 0000000000000007 RBX: dffffc0000000000 RCX: ffffffff8138bcce
RDX: 0000000000000000 RSI: ffffffff8138bc8f RDI: fffffffffffffc54
RBP: 0000000000000000 R08: ffff888000116620 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888038e53940
R13: ffff88800010ed10 R14: ffff88803bff8080 R15: ffff88822226f700
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffc54 CR3: 00000001fcf5a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 exit_mm kernel/exit.c:548 [inline]
 do_exit+0xae4/0x2be0 kernel/exit.c:857
 do_group_exit+0x125/0x310 kernel/exit.c:967
 __do_sys_exit_group kernel/exit.c:978 [inline]
 __se_sys_exit_group kernel/exit.c:976 [inline]
 __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:976
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665e9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd095deec8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00000000004665e9
RDX: 00000000004193fb RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd095defc0
Modules linked in:
CR2: fffffffffffffc54
---[ end trace 18937824b91fd63f ]---
RIP: 0010:mm_update_next_owner+0x376/0x650 kernel/exit.c:450
Code: c5 29 00 48 8d bd 54 fc ff ff 48 89 f8 48 c1 e8 03 0f b6 14 18 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 26 02 00 00 <44> 8b ad 54 fc ff ff 31 ff 41 81 e5 00 00 20 00 44 89 ee e8 c2 c6
RSP: 0018:ffff888219187d50 EFLAGS: 00010246
RAX: 0000000000000007 RBX: dffffc0000000000 RCX: ffffffff8138bcce
RDX: 0000000000000000 RSI: ffffffff8138bc8f RDI: fffffffffffffc54
RBP: 0000000000000000 R08: ffff888000116620 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff888038e53940
R13: ffff88800010ed10 R14: ffff88803bff8080 R15: ffff88822226f700
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffc54 CR3: 00000001fcf5a000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600