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DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff888072222810, owner = 0x0, curr 0xffff88802f7f3c00, list empty
WARNING: CPU: 1 PID: 9201 at kernel/locking/rwsem.c:1372 __up_write kernel/locking/rwsem.c:1371 [inline]
WARNING: CPU: 1 PID: 9201 at kernel/locking/rwsem.c:1372 up_write+0x397/0x410 kernel/locking/rwsem.c:1626
Modules linked in:
CPU: 1 PID: 9201 Comm: syz.6.990 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__up_write kernel/locking/rwsem.c:1371 [inline]
RIP: 0010:up_write+0x397/0x410 kernel/locking/rwsem.c:1626
Code: 4c 0f 44 d0 48 c7 c7 20 0d 8c 8a 48 c7 c6 60 0f 8c 8a 48 8b 14 24 4c 89 f1 4d 89 e0 4d 89 f9 41 52 e8 8d 4a ea ff 48 83 c4 08 <0f> 0b e9 70 fd ff ff 48 c7 c1 e8 06 01 8f 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc9000c9ef698 EFLAGS: 00010282
RAX: b7def229d3a1d000 RBX: ffff888072222810 RCX: 0000000000080000
RDX: ffffc9000ec79000 RSI: 0000000000028a81 RDI: 0000000000028a82
RBP: dffffc0000000000 R08: ffffc9000c9ef387 R09: 1ffff9200193de70
R10: dffffc0000000000 R11: fffff5200193de71 R12: 0000000000000000
R13: ffff888072222868 R14: ffff888072222810 R15: ffff88802f7f3c00
FS:  00007feec3dd86c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feec2feb8c0 CR3: 0000000045ca9000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_unlock include/linux/fs.h:769 [inline]
 ovl_workdir_create+0x76c/0x820 fs/overlayfs/super.c:842
 ovl_make_workdir fs/overlayfs/super.c:1389 [inline]
 ovl_get_workdir+0x3cc/0x1630 fs/overlayfs/super.c:1539
 ovl_fill_super+0x1cd8/0x42f0 fs/overlayfs/super.c:2095
 mount_nodev+0x52/0xe0 fs/super.c:1500
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1584
 do_new_mount+0x247/0xa40 fs/namespace.c:3078
 do_mount fs/namespace.c:3421 [inline]
 __do_sys_mount fs/namespace.c:3629 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3606
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7feec2f9e1d9
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:00007feec3dd8028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007feec3226090 RCX: 00007feec2f9e1d9
RDX: 0000200000000280 RSI: 0000200000000240 RDI: 0000000000000000
RBP: 00007feec3035888 R08: 00002000000002c0 R09: 0000000000000000
R10: 0000000002000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007feec3226128 R14: 00007feec3226090 R15: 00007fff4a4a9318
 </TASK>