loop0: detected capacity change from 0 to 32768
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
gfs2: fsid=syz:syz.0: first mount done, others may mount
 slab gfs2_inode start ffff8880485dc8e0 pointer offset 304 size 1568
list_del corruption. prev->next should be ffffc9000d8e7920, but was ffff8880485dca10. (prev=ffff8880485dca10)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:64!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5327 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_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62
Code: e8 2b 14 54 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 ec 06 77 fd 49 8b 17 48 c7 c7 c0 d9 27 8c 48 89 de 4c 89 f9 e8 67 47 6d fc 90 <0f> 0b 4c 89 f7 e8 fc 13 54 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 bd
RSP: 0018:ffffc9000d8e77b0 EFLAGS: 00010046
RAX: 000000000000006d RBX: ffffc9000d8e7920 RCX: cc7d5c5d8ac6a600
RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
RBP: ffffc9000d8e79f0 R08: ffff88801fc247d3 R09: 1ffff11003f848fa
R10: dffffc0000000000 R11: ffffed1003f848fb R12: 1ffff110090bb942
R13: dffffc0000000000 R14: ffff8880485dca10 R15: ffff8880485dca10
FS:  00007fed815826c0(0000) GS:ffff88808ca55000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed8096c4a0 CR3: 0000000040ded000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:223 [inline]
 list_del include/linux/list.h:237 [inline]
 rwsem_try_write_lock kernel/locking/rwsem.c:662 [inline]
 rwsem_down_write_slowpath+0x949/0x1040 kernel/locking/rwsem.c:1159
 __down_write_common kernel/locking/rwsem.c:1317 [inline]
 __down_write kernel/locking/rwsem.c:1326 [inline]
 down_write+0x1bc/0x200 kernel/locking/rwsem.c:1591
 inode_lock include/linux/fs.h:1028 [inline]
 vfs_setxattr+0x13e/0x360 fs/xattr.c:320
 do_setxattr fs/xattr.c:636 [inline]
 filename_setxattr+0x296/0x630 fs/xattr.c:664
 path_setxattrat+0x3eb/0x440 fs/xattr.c:708
 __do_sys_setxattr fs/xattr.c:742 [inline]
 __se_sys_setxattr fs/xattr.c:738 [inline]
 __x64_sys_setxattr+0xbc/0xe0 fs/xattr.c:738
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fed8079c799
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:00007fed81581fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007fed80a16090 RCX: 00007fed8079c799
RDX: 00002000000001c0 RSI: 0000200000000180 RDI: 00002000000000c0
RBP: 00007fed80832c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001001 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fed80a16128 R14: 00007fed80a16090 R15: 00007ffc4caa4188
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62
Code: e8 2b 14 54 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 ec 06 77 fd 49 8b 17 48 c7 c7 c0 d9 27 8c 48 89 de 4c 89 f9 e8 67 47 6d fc 90 <0f> 0b 4c 89 f7 e8 fc 13 54 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 bd
RSP: 0018:ffffc9000d8e77b0 EFLAGS: 00010046
RAX: 000000000000006d RBX: ffffc9000d8e7920 RCX: cc7d5c5d8ac6a600
RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
RBP: ffffc9000d8e79f0 R08: ffff88801fc247d3 R09: 1ffff11003f848fa
R10: dffffc0000000000 R11: ffffed1003f848fb R12: 1ffff110090bb942
R13: dffffc0000000000 R14: ffff8880485dca10 R15: ffff8880485dca10
FS:  00007fed815826c0(0000) GS:ffff88808ca55000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fed8096c4a0 CR3: 0000000040ded000 CR4: 0000000000352ef0