__sock_create+0x359/0x790 net/socket.c:1540 sock_create net/socket.c:1591 [inline] __sys_socket_create net/socket.c:1628 [inline] __sys_socket_create net/socket.c:1613 [inline] __sys_socket+0x133/0x250 net/socket.c:1661 __do_sys_socket net/socket.c:1674 [inline] __se_sys_socket net/socket.c:1672 [inline] __x64_sys_socket+0x73/0xb0 net/socket.c:1672 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5452 at lib/ref_tracker.c:39 spin_unlock_irqrestore include/linux/spinlock.h:405 [inline] WARNING: CPU: 0 PID: 5452 at lib/ref_tracker.c:39 ref_tracker_dir_exit.cold+0x137/0x1e3 lib/ref_tracker.c:38 Modules linked in: CPU: 0 PID: 5452 Comm: kworker/u4:10 Not tainted 6.2.0-rc5-syzkaller-01016-g90e8ca0abb05 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: netns cleanup_net RIP: 0010:ref_tracker_dir_exit.cold+0x137/0x1e3 lib/ref_tracker.c:39 Code: 4c 89 ef e8 78 25 fd f7 4c 8b 3c 24 4c 39 fd 49 8b 07 0f 85 b5 00 00 00 e8 73 cf ae f7 48 8b 74 24 10 4c 89 e7 e8 86 2b 38 00 <0f> 0b e9 98 e2 67 fa 4c 89 ff e8 47 25 fd f7 e9 d4 fe ff ff e8 1d RSP: 0018:ffffc9000599fc00 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff888022e3d850 R08: 0000000000000001 R09: ffffffff91341bc7 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888022e3d800 R13: ffff888022e3d850 R14: ffff888022e3d850 R15: ffff888022e3d850 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001640 CR3: 0000000054a8b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: net_free net/core/net_namespace.c:442 [inline] net_free net/core/net_namespace.c:436 [inline] cleanup_net+0x8bb/0xb10 net/core/net_namespace.c:627 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289 worker_thread+0x669/0x1090 kernel/workqueue.c:2436 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308