watchdog: BUG: soft lockup - CPU#1 stuck for 111s! [syz.8.1159:4810] Modules linked in: CPU: 1 PID: 4810 Comm: syz.8.1159 Not tainted 5.10.231-syzkaller-00700-g4055d754db6f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:check_region_inline mm/kasan/generic.c:175 [inline] RIP: 0010:kasan_check_range+0x2b/0x2a0 mm/kasan/generic.c:189 Code: 48 89 e5 41 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 00 00 48 89 fb 48 01 f3 0f 82 67 02 00 00 48 89 fb 48 c1 eb 2f <81> fb ff ff 01 00 0f 82 54 02 00 00 49 89 fc 49 c1 ec 03 49 b8 00 RSP: 0018:ffffc90000c76958 EFLAGS: 00000a06 RAX: 0000000000000401 RBX: 000000000001ffff RCX: ffffffff84b3487b RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8881175d8f88 RBP: ffffc90000c76980 R08: ffffffff849a2431 R09: ffffed1022ebb1f1 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200018ed34 R13: ffff8881175d8f88 R14: 0000000081ccc276 R15: dffffc0000000000 FS: 00007f667508d6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005000 CR3: 0000000125ba8000 CR4: 00000000003526a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __kasan_check_read+0x11/0x20 mm/kasan/shadow.c:31 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/asm-generic/atomic-instrumented.h:27 [inline] queued_spin_trylock include/asm-generic/qspinlock.h:63 [inline] do_raw_spin_trylock include/linux/spinlock.h:201 [inline] __raw_spin_trylock_bh include/linux/spinlock_api_smp.h:182 [inline] _raw_spin_trylock_bh+0x7b/0x190 kernel/locking/spinlock.c:143 spin_trylock_bh include/linux/spinlock.h:414 [inline] tipc_sk_rcv+0x4c2/0x1e30 net/tipc/socket.c:2492 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:1052 [inline] __release_sock+0x148/0x410 net/core/sock.c:2583 release_sock+0x65/0x1b0 net/core/sock.c:3134 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+0x33d/0x7b0 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x129/0x190 kernel/task_work.c:189 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+0xa2/0x1a0 kernel/entry/common.c:274 do_syscall_64+0x40/0x70 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f6676a1bd29 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:00007f667508d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 00000000000203a0 RBX: 00007f6676c0bfa0 RCX: 00007f6676a1bd29 RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000003 RBP: 00007f6676a97aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6676c0bfa0 R15: 00007fffbc4ef738 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 1414 Comm: kworker/u4:5 Not tainted 5.10.231-syzkaller-00700-g4055d754db6f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 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 ea ec 0a 00 41 83 e5 01 75 0a e8 2f e9 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:ffffc90000ec7720 EFLAGS: 00000293 RAX: ffffffff815fd574 RBX: 1ffff920001d8eed RCX: ffff888114d62780 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90000ec7810 R08: ffffffff815fd546 R09: ffffed103ee2aec9 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 0000000000000001 R14: ffffc90000ec7768 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8980305f2c CR3: 000000000660f000 CR4: 00000000003526b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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:1318 [inline] text_poke_bp_batch+0x1d4/0x600 arch/x86/kernel/alternative.c:1509 text_poke_flush arch/x86/kernel/alternative.c:1677 [inline] text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:1684 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:298