watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor.4:27522] Modules linked in: CPU: 1 PID: 27522 Comm: syz-executor.4 Tainted: G W 5.10.209-syzkaller-00039-g8d3bb9cb3b7d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:memcmp lib/string.c:942 [inline] RIP: 0010:bcmp+0x57/0xb0 lib/string.c:964 Code: 8d 3c 2c 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 75 2b 43 0f b6 1c 2c 4b 8d 3c 2f 48 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 75 29 <43> 0f b6 04 2f 29 c3 75 3c 49 ff c5 4d 39 ee 75 c4 eb 30 89 f9 80 RSP: 0018:ffffc900013a6908 EFLAGS: 00000293 RAX: 0000000000000004 RBX: 000000000000006a RCX: 00000000013a6901 RDX: dffffc0000000000 RSI: ffffc900013a69c0 RDI: ffffc900013a69c1 RBP: ffffc900013a6930 R08: ffffffff8497f005 R09: 0000000000000003 R10: fffff52000274d38 R11: dffffc0000000001 R12: ffff88810cff5c5c R13: 0000000000000001 R14: 0000000000000004 R15: ffffc900013a69c0 FS: 00007ff1c8b4c6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f44ae1fd038 CR3: 000000013baf5000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rhashtable_compare include/linux/rhashtable.h:577 [inline] __rhashtable_lookup include/linux/rhashtable.h:602 [inline] rhashtable_lookup include/linux/rhashtable.h:638 [inline] tipc_sk_lookup+0x313/0x650 net/tipc/socket.c:2997 tipc_sk_rcv+0x499/0x1e30 net/tipc/socket.c:2488 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674 tipc_node_xmit_skb+0x153/0x1b0 net/tipc/node.c:1739 tipc_sk_rcv+0x1c0b/0x1e30 net/tipc/socket.c:2518 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674 tipc_sk_push_backlog net/tipc/socket.c:1306 [inline] tipc_sk_filter_connect net/tipc/socket.c:2253 [inline] tipc_sk_filter_rcv+0x1da8/0x3e00 net/tipc/socket.c:2362 tipc_sk_enqueue net/tipc/socket.c:2442 [inline] tipc_sk_rcv+0x8a1/0x1e30 net/tipc/socket.c:2493 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674 tipc_node_xmit_skb net/tipc/node.c:1739 [inline] tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1754 tipc_sk_backlog_rcv+0x18b/0x210 net/tipc/socket.c:2410 sk_backlog_rcv include/net/sock.h:1050 [inline] __release_sock+0x148/0x410 net/core/sock.c:2571 release_sock+0x65/0x1b0 net/core/sock.c:3122 tipc_release+0xb6b/0x1440 net/tipc/socket.c:639 __sock_release net/socket.c:597 [inline] sock_close+0xdf/0x270 net/socket.c:1286 __fput+0x309/0x760 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x129/0x190 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xbf/0xd0 kernel/entry/common.c:172 exit_to_user_mode_prepare kernel/entry/common.c:199 [inline] syscall_exit_to_user_mode+0xc5/0x1d0 kernel/entry/common.c:274 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7ff1c9df9ea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff1c8b4c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007ff1c9f28050 RCX: 00007ff1c9df9ea9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000049 RBP: 00007ff1c9e464a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff1c9f28050 R15: 00007ffea610ab78 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7 Comm: kworker/u4:0 Tainted: G W 5.10.209-syzkaller-00039-g8d3bb9cb3b7d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:229 [inline] RIP: 0010:smp_call_function_single+0x278/0x510 kernel/smp.c:517 Code: 0f 85 18 02 00 00 44 8b 6c 24 48 44 89 ee 83 e6 01 31 ff e8 ba f0 0a 00 41 83 e5 01 75 0a e8 ff ec 0a 00 e9 eb 00 00 00 f3 90 <42> 0f b6 04 23 84 c0 75 15 f7 44 24 48 01 00 00 00 0f 84 cd 00 00 RSP: 0018:ffffc90000077720 EFLAGS: 00000293 RAX: ffffffff815fbc04 RBX: 1ffff9200000eeed RCX: ffff888100253b40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000077810 R08: ffffffff815fbbd6 R09: ffffed103ee2aec9 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 0000000000000001 R14: ffffc90000077768 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 000000000660f000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: smp_call_function_many_cond+0x94e/0xa30 kernel/smp.c:653 smp_call_function_many kernel/smp.c:716 [inline] smp_call_function kernel/smp.c:738 [inline] on_each_cpu+0xa8/0x1a0 kernel/smp.c:837 text_poke_sync arch/x86/kernel/alternative.c:1313 [inline] text_poke_bp_batch+0x1d4/0x600 arch/x86/kernel/alternative.c:1504 text_poke_flush arch/x86/kernel/alternative.c:1672 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1679 arch_jump_label_transform_apply+0x15/0x30 arch/x86/kernel/jump_label.c:126 __jump_label_update+0x36a/0x380 kernel/jump_label.c:459 jump_label_update+0x379/0x400 kernel/jump_label.c:825 static_key_enable_cpuslocked+0x12f/0x250 kernel/jump_label.c:177 static_key_enable+0x1a/0x30 kernel/jump_label.c:190 toggle_allocation_gate+0xbf/0x450 mm/kfence/core.c:624 process_one_work+0x6dc/0xbd0 kernel/workqueue.c:2301 worker_thread+0xaea/0x1510 kernel/workqueue.c:2447 kthread+0x34b/0x3d0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:299