loop0: detected capacity change from 0 to 16
erofs (device loop0): mounted with root inode @ nid 36.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5494 at fs/dax.c:224 get_next_unlocked_entry+0x329/0x340 fs/dax.c:224
Modules linked in:
CPU: 0 UID: 0 PID: 5494 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:get_next_unlocked_entry+0x329/0x340 fs/dax.c:224
Code: 45 1d 10 48 3b 84 24 c0 00 00 00 75 22 4c 89 e8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 3e 8a f9 08 cc e8 08 59 6e ff 90 <0f> 0b 90 eb a0 e8 6d a6 f6 08 66 66 66 66 2e 0f 1f 84 00 00 00 00
RSP: 0018:ffffc90002afe8a0 EFLAGS: 00010093
RAX: ffffffff8251ba68 RBX: 1ffff9200055fd9c RCX: ffff888000e22480
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002afe9b0 R08: ffffc90002afe937 R09: 0000000000000000
R10: ffffc90002afe900 R11: fffff5200055fd27 R12: ffffc90002afe918
R13: ffffea0000437ac0 R14: ffffc90002afe900 R15: dffffc0000000000
FS:  000055558d07b500(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1ac985c38 CR3: 0000000058e42000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 grab_mapping_entry+0x176/0x660 fs/dax.c:660
 dax_iomap_pte_fault fs/dax.c:1891 [inline]
 dax_iomap_fault+0x8ab/0x18d0 fs/dax.c:2080
 __do_fault+0x138/0x390 mm/memory.c:5281
 do_cow_fault mm/memory.c:5746 [inline]
 do_fault mm/memory.c:5852 [inline]
 do_pte_missing mm/memory.c:4362 [inline]
 handle_pte_fault mm/memory.c:6195 [inline]
 __handle_mm_fault+0x1719/0x5400 mm/memory.c:6336
 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6505
 faultin_page mm/gup.c:1126 [inline]
 __get_user_pages+0x165c/0x2a00 mm/gup.c:1428
 __get_user_pages_locked mm/gup.c:1692 [inline]
 get_user_pages_remote+0x2f1/0xac0 mm/gup.c:2614
 uprobe_write+0x1b6/0x2160 kernel/events/uprobes.c:529
 uprobe_write_opcode+0xa8/0xf0 kernel/events/uprobes.c:493
 set_swbp+0x121/0x290 arch/x86/kernel/uprobes.c:1090
 install_breakpoint+0x451/0x5a0 kernel/events/uprobes.c:1170
 register_for_each_vma+0xabb/0xc30 kernel/events/uprobes.c:1315
 uprobe_apply+0xfb/0x270 kernel/events/uprobes.c:1459
 uprobe_perf_open kernel/trace/trace_uprobe.c:1371 [inline]
 trace_uprobe_register+0x4df/0x560 kernel/trace/trace_uprobe.c:1533
 perf_trace_event_open kernel/trace/trace_event_perf.c:184 [inline]
 perf_trace_event_init+0x19a/0x9d0 kernel/trace/trace_event_perf.c:206
 perf_uprobe_init+0x12e/0x1a0 kernel/trace/trace_event_perf.c:332
 perf_uprobe_event_init+0xe6/0x180 kernel/events/core.c:11170
 perf_try_init_event+0x17f/0x870 kernel/events/core.c:12615
 perf_init_event kernel/events/core.c:12713 [inline]
 perf_event_alloc+0x133e/0x2be0 kernel/events/core.c:12988
 __do_sys_perf_event_open kernel/events/core.c:13506 [inline]
 __se_sys_perf_event_open+0x772/0x1d70 kernel/events/core.c:13387
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5a378f6c9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffd03cc078 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fc5a39e5fa0 RCX: 00007fc5a378f6c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000000c0
RBP: 00007fc5a3811f91 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc5a39e5fa0 R14: 00007fc5a39e5fa0 R15: 0000000000000005
 </TASK>