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
------------[ cut here ]------------
DEBUG_RWSEMS_WARN_ON(!is_rwsem_reader_owned(sem)): count = 0x0, magic = 0xffff8880441d0e38, owner = 0x0, curr 0xffff888000932440, list empty
WARNING: CPU: 0 PID: 5314 at kernel/locking/rwsem.c:1341 __up_read+0x5f5/0x680 kernel/locking/rwsem.c:1341
Modules linked in:
CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted 6.15.0-rc7-syzkaller-00014-gd608703fcdd9 #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:__up_read+0x5f5/0x680 kernel/locking/rwsem.c:1341
Code: 44 d0 48 c7 c7 80 da 6a 8b 48 c7 c6 20 db 6a 8b 4c 89 ea 48 8b 4c 24 08 4d 89 e0 4d 89 f1 41 52 e8 60 79 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 72 fb ff ff 48 c7 c1 54 62 7f 8f 80 e1 07 80 c1 03
RSP: 0018:ffffc9000d55f960 EFLAGS: 00010296
RAX: 8a54691c6524d600 RBX: ffff8880441d0e38 RCX: ffff888000932440
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc9000d55fa18 R08: ffff88801fe23e93 R09: 1ffff11003fc47d2
R10: dffffc0000000000 R11: ffffed1003fc47d3 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888000932440 R15: ffff8880441d0e90
FS: 00007f5fe90226c0(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5fe8fdffc8 CR3: 000000003fecf000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
inode_unlock_shared include/linux/fs.h:882 [inline]
lookup_slow+0x5e/0x70 fs/namei.c:1835
walk_component fs/namei.c:2138 [inline]
link_path_walk+0x925/0xe50 fs/namei.c:2503
path_parentat fs/namei.c:2707 [inline]
__filename_parentat+0x246/0x670 fs/namei.c:2731
filename_parentat fs/namei.c:2749 [inline]
filename_create+0xcf/0x470 fs/namei.c:4113
do_mkdirat+0xa0/0x590 fs/namei.c:4384
__do_sys_mkdirat fs/namei.c:4409 [inline]
__se_sys_mkdirat fs/namei.c:4407 [inline]
__x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4407
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5fe818e969
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:00007f5fe9022038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f5fe83b5fa0 RCX: 00007f5fe818e969
RDX: 0000000000000000 RSI: 0000200000000240 RDI: ffffffffffffff9c
RBP: 00007f5fe8210ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5fe83b5fa0 R15: 00007ffc7fb8e698
</TASK>