Subscription rejected, illegal request Subscription rejected, illegal request Subscription rejected, illegal request Subscription rejected, illegal request Subscription rejected, illegal request watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [kworker/u4:5:9372] Modules linked in: irq event stamp: 19741587 hardirqs last enabled at (19741586): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (19741587): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (19736320): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (19736320): [] tipc_conn_kref_release net/tipc/topsrv.c:149 [inline] softirqs last enabled at (19736320): [] kref_put include/linux/kref.h:70 [inline] softirqs last enabled at (19736320): [] conn_put+0x2c5/0x3a0 net/tipc/topsrv.c:155 softirqs last disabled at (19736324): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (19736324): [] tipc_topsrv_stop net/tipc/topsrv.c:702 [inline] softirqs last disabled at (19736324): [] tipc_topsrv_exit_net+0x283/0x5c0 net/tipc/topsrv.c:722 CPU: 1 PID: 9372 Comm: kworker/u4:5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: netns cleanup_net RIP: 0010:radix_tree_lookup+0x2/0x20 lib/radix-tree.c:1098 Code: 44 24 58 65 48 2b 04 25 28 00 00 00 75 11 48 83 c4 60 4c 89 e0 5b 5d 41 5c c3 49 89 c4 eb c8 e8 94 af 48 f9 0f 1f 40 00 41 54 <49> 89 f4 55 48 89 fd e8 f2 8e 73 f9 4c 89 e6 48 89 ef 5d 41 5c 31 RSP: 0018:ffff8880452ffbd0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 000000002b85554e RCX: ffffffff87bb46ad RDX: 1ffff11013cdde69 RSI: 000000002b85554e RDI: ffff88809e6ef300 RBP: ffff88809e6ef300 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff88809e6ef350 R13: ffffed1013cdde71 R14: ffff888041b5c5c0 R15: 0000000000000005 FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f15be07b000 CR3: 00000000a2afc000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tipc_topsrv_stop net/tipc/topsrv.c:698 [inline] tipc_topsrv_exit_net+0x25e/0x5c0 net/tipc/topsrv.c:722 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:554 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:60