------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff8880576c0e38, owner = 0x0, curr 0xffff88801e351e00, list empty WARNING: CPU: 0 PID: 13176 at kernel/locking/rwsem.c:1381 __up_write kernel/locking/rwsem.c:1380 [inline] WARNING: CPU: 0 PID: 13176 at kernel/locking/rwsem.c:1381 up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643 Modules linked in: CPU: 0 UID: 0 PID: 13176 Comm: syz.6.2611 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 RIP: 0010:__up_write kernel/locking/rwsem.c:1380 [inline] RIP: 0010:up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643 Code: d0 48 c7 c7 a0 ee 8a 8b 48 c7 c6 c0 f0 8a 8b 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 93 54 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6d fd ff ff 48 c7 c1 64 d6 a3 8f 80 e1 07 80 c1 03 RSP: 0018:ffffc9000c5efdb0 EFLAGS: 00010292 RAX: ccf1617a73cf4b00 RBX: ffff8880576c0e38 RCX: 0000000000080000 RDX: ffffc9001e951000 RSI: 000000000000b8c9 RDI: 000000000000b8ca RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa22c R12: 0000000000000000 R13: ffff8880576c0e90 R14: ffff8880576c0e38 R15: 1ffff1100aed81c8 FS: 00007f729c9cd6c0(0000) GS:ffff888125c15000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31b06ff8 CR3: 000000004bb81000 CR4: 0000000000350ef0 Call Trace: inode_unlock include/linux/fs.h:880 [inline] done_path_create fs/namei.c:4177 [inline] do_mkdirat+0x2b5/0x590 fs/namei.c:4404 __do_sys_mkdir fs/namei.c:4421 [inline] __se_sys_mkdir fs/namei.c:4419 [inline] __x64_sys_mkdir+0x6c/0x80 fs/namei.c:4419 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f729e78eba9 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:00007f729c9cd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007f729e9d6090 RCX: 00007f729e78eba9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000200 RBP: 00007f729e811e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f729e9d6128 R14: 00007f729e9d6090 R15: 00007ffcce21fed8