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: 1 PID: 9509 Comm: syz-executor.0 Not tainted 5.2.0-rc5 #28
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:do_move_mount.isra.0+0x5fe/0xe10 fs/namespace.c:2602
Code: ff ff 00 0f 84 7a fb ff ff e8 de a4 b5 ff 48 8b 85 50 ff ff ff 48 8d 78 48 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 6d 07 00 00 48 8b 85 50 ff ff ff 31 ff 4c 8b 78
RSP: 0018:ffff88808ebd7d48 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff88808ebd7e98 RCX: 1ffff11015304b37
RDX: 0000000000000006 RSI: ffffffff81bb1c82 RDI: 0000000000000032
RBP: ffff88808ebd7e28 R08: ffff8880a13ac340 R09: ffffed1015d26be0
R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: ffff8880a783dc80
R13: ffff88821b6a0220 R14: ffff88808ebd7e80 R15: ffff8880a98259a0
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:00000000f7ef2b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000200001c0 CR3: 000000008c364000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __do_sys_move_mount fs/namespace.c:3524 [inline]
 __se_sys_move_mount fs/namespace.c:3483 [inline]
 __ia32_sys_move_mount+0x354/0x440 fs/namespace.c:3483
 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline]
 do_fast_syscall_32+0x27b/0xd7d arch/x86/entry/common.c:408
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f17849
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f7ef20cc EFLAGS: 00000296 ORIG_RAX: 00000000000001ad
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000040
RDX: 00000000ffffff9c RSI: 0000000020000100 RDI: 0000000000000066
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace dc0ddede657522ac ]---
RIP: 0010:do_move_mount.isra.0+0x5fe/0xe10 fs/namespace.c:2602
Code: ff ff 00 0f 84 7a fb ff ff e8 de a4 b5 ff 48 8b 85 50 ff ff ff 48 8d 78 48 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 6d 07 00 00 48 8b 85 50 ff ff ff 31 ff 4c 8b 78
RSP: 0018:ffff88808ebd7d48 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff88808ebd7e98 RCX: 1ffff11015304b37
RDX: 0000000000000006 RSI: ffffffff81bb1c82 RDI: 0000000000000032
RBP: ffff88808ebd7e28 R08: ffff8880a13ac340 R09: ffffed1015d26be0
R10: ffffed1015d26bdf R11: ffff8880ae935efb R12: ffff8880a783dc80
R13: ffff88821b6a0220 R14: ffff88808ebd7e80 R15: ffff8880a98259a0
FS:  0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:00000000f7ef2b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000200001c0 CR3: 000000008c364000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400