------------[ cut here ]------------ DEBUG_RWSEMS_WARN_ON((rwsem_owner(sem) != current) && !rwsem_test_oflags(sem, RWSEM_NONSPINNABLE)): count = 0x0, magic = 0xffff88805bcb3d08, owner = 0x0, curr 0xffff8880275e1e00, list empty WARNING: kernel/locking/rwsem.c:1381 at __up_write kernel/locking/rwsem.c:1380 [inline], CPU#0: syz.0.120/6667 WARNING: kernel/locking/rwsem.c:1381 at up_write+0x3a2/0x420 kernel/locking/rwsem.c:1643, CPU#0: syz.0.120/6667 Modules linked in: CPU: 0 UID: 0 PID: 6667 Comm: syz.0.120 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 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 aa 8b 48 c7 c6 c0 f0 aa 8b 48 8b 14 24 4c 89 f1 4d 89 e0 4c 8b 4c 24 08 41 52 e8 f3 52 e6 ff 48 83 c4 08 90 <0f> 0b 90 90 e9 6d fd ff ff 48 c7 c1 74 34 c4 8f 80 e1 07 80 c1 03 RSP: 0018:ffffc9000b35fdb0 EFLAGS: 00010292 RAX: 328ca7689f423300 RBX: ffff88805bcb3d08 RCX: ffff8880275e1e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1c3a604 R12: 0000000000000000 R13: ffff88805bcb3d60 R14: ffff88805bcb3d08 R15: 1ffff1100b7967a2 FS: 00007fe7b87a46c0(0000) GS:ffff8881259ff000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f82a0fcae9c CR3: 000000007f094000 CR4: 00000000003526f0 Call Trace: inode_unlock include/linux/fs.h:879 [inline] done_path_create fs/namei.c:4177 [inline] do_mkdirat+0x2b5/0x590 fs/namei.c:4404 __do_sys_mkdirat fs/namei.c:4416 [inline] __se_sys_mkdirat fs/namei.c:4414 [inline] __x64_sys_mkdirat+0x87/0xa0 fs/namei.c:4414 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe7b798ebe9 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:00007fe7b87a4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fe7b7bb6090 RCX: 00007fe7b798ebe9 RDX: 000000000000011e RSI: 0000200000000100 RDI: ffffffffffffff9c RBP: 00007fe7b7a11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe7b7bb6128 R14: 00007fe7b7bb6090 R15: 00007ffd54cb2f58