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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888052c8e310, owner = 0x0, curr 0xffff88802a0b3b80, list empty
WARNING: CPU: 0 PID: 7598 at kernel/locking/rwsem.c:1350 __up_write kernel/locking/rwsem.c:1349 [inline]
WARNING: CPU: 0 PID: 7598 at kernel/locking/rwsem.c:1350 up_write+0x3a1/0x420 kernel/locking/rwsem.c:1604
Modules linked in:
CPU: 1 PID: 7598 Comm: syz.4.1115 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__up_write kernel/locking/rwsem.c:1349 [inline]
RIP: 0010:up_write+0x3a1/0x420 kernel/locking/rwsem.c:1604
Code: 44 d0 48 c7 c7 40 09 0b 8a 48 c7 c6 00 0c 0b 8a 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 33 15 42 08 48 83 c4 08 <0f> 0b e9 6b fd ff ff 48 c7 c1 48 a2 69 8d 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900061df790 EFLAGS: 00010296
RAX: a985a8b6a3526700 RBX: ffff888052c8e310 RCX: 0000000000080000
RDX: ffffc9000df49000 RSI: 00000000000150c2 RDI: 00000000000150c3
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed10172067a8
R10: ffffed10172067a8 R11: 1ffff110172067a7 R12: 0000000000000000
R13: ffff888052c8e368 R14: ffff888052c8e310 R15: 1ffff1100a591c63
FS:  00007f7e0f7946c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9e7d806198 CR3: 000000007ac98000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:792 [inline]
 ovl_workdir_create+0x4dc/0x580 fs/overlayfs/super.c:839
 ovl_make_workdir fs/overlayfs/super.c:1376 [inline]
 ovl_get_workdir+0x352/0x11a0 fs/overlayfs/super.c:1526
 ovl_fill_super+0x1925/0x2ae0 fs/overlayfs/super.c:2082
 mount_nodev+0x52/0xe0 fs/super.c:1446
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:611
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x24a/0xa40 fs/namespace.c:3014
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3542
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7e1192cb69
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:00007f7e0f794038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7e11b53fa0 RCX: 00007f7e1192cb69
RDX: 0000200000000340 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007f7e119afdf1 R08: 0000200000000240 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7e11b53fa0 R15: 00007ffec4776848
 </TASK>