loop0: detected capacity change from 0 to 4096
list_add double add: new=ffff8880440b2ba0, prev=ffff8880440b2ba0, next=ffffc9000e0af1c0.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:37!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__list_add_valid_or_report+0xa5/0x130 lib/list_debug.c:35
Code: 74 12 b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d2 95 f4 06 cc 48 c7 c7 60 ed 4b 8c 4c 89 fe 4c 89 f2 48 89 d9 e8 3c ef 47 fc 90 <0f> 0b 48 c7 c7 40 eb 4b 8c e8 2d ef 47 fc 90 0f 0b 48 c7 c7 00 ec
RSP: 0018:ffffc9000e0aed48 EFLAGS: 00010246
RAX: 0000000000000058 RBX: ffffc9000e0af1c0 RCX: 91690e097ff14200
RDX: ffffc9000ef62000 RSI: 0000000000001517 RDI: 0000000000001518
RBP: 1ffff92001c15e39 R08: ffffc9000e0aeac7 R09: 1ffff92001c15d58
R10: dffffc0000000000 R11: fffff52001c15d59 R12: 1ffff11008816574
R13: dffffc0000000000 R14: ffff8880440b2ba0 R15: ffff8880440b2ba0
FS:  00007f2b2f8b56c0(0000) GS:ffff88808c54a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fa820b66e5 CR3: 000000001fc76000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __list_add_valid include/linux/list.h:96 [inline]
 __list_add include/linux/list.h:158 [inline]
 list_add_tail include/linux/list.h:191 [inline]
 nilfs_lookup_dirty_data_buffers+0x468/0x7b0 fs/nilfs2/segment.c:745
 nilfs_segctor_scan_file+0x26a/0xf70 fs/nilfs2/segment.c:1046
 nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1198 [inline]
 nilfs_segctor_collect fs/nilfs2/segment.c:1547 [inline]
 nilfs_segctor_do_construct+0x1c8d/0x7bb0 fs/nilfs2/segment.c:2122
 nilfs_segctor_construct+0x170/0x690 fs/nilfs2/segment.c:2462
 nilfs_clean_segments+0x4ec/0xbb0 fs/nilfs2/segment.c:2557
 nilfs_ioctl_clean_segments fs/nilfs2/ioctl.c:922 [inline]
 nilfs_ioctl+0x2619/0x2780 fs/nilfs2/ioctl.c:1352
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2b2e99de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2b2f8b4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f2b2ec25fa0 RCX: 00007f2b2e99de99
RDX: 0000200000000040 RSI: 0000000040786e88 RDI: 0000000000000006
RBP: 00007f2b2ea33eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2b2ec26038 R14: 00007f2b2ec25fa0 R15: 00007ffc15cd8268
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0xa5/0x130 lib/list_debug.c:35
Code: 74 12 b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d e9 d2 95 f4 06 cc 48 c7 c7 60 ed 4b 8c 4c 89 fe 4c 89 f2 48 89 d9 e8 3c ef 47 fc 90 <0f> 0b 48 c7 c7 40 eb 4b 8c e8 2d ef 47 fc 90 0f 0b 48 c7 c7 00 ec
RSP: 0018:ffffc9000e0aed48 EFLAGS: 00010246
RAX: 0000000000000058 RBX: ffffc9000e0af1c0 RCX: 91690e097ff14200
RDX: ffffc9000ef62000 RSI: 0000000000001517 RDI: 0000000000001518
RBP: 1ffff92001c15e39 R08: ffffc9000e0aeac7 R09: 1ffff92001c15d58
R10: dffffc0000000000 R11: fffff52001c15d59 R12: 1ffff11008816574
R13: dffffc0000000000 R14: ffff8880440b2ba0 R15: ffff8880440b2ba0
FS:  00007f2b2f8b56c0(0000) GS:ffff88808c54a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fa820b66e5 CR3: 000000001fc76000 CR4: 0000000000352ef0