watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.0.19:407] Modules linked in: CPU: 1 PID: 407 Comm: syz.0.19 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:native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline] RIP: 0010:kvm_wait+0xfc/0x150 arch/x86/kernel/kvm.c:926 Code: 38 f0 75 26 41 f7 c7 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d a5 53 d5 03 f4 eb 0e 0f 1f 44 00 00 0f 00 2d 96 53 d5 03 fb f4 <4c> 89 7c 24 18 ff 74 24 18 9d 48 c7 44 24 20 0e 36 e0 45 49 c7 04 RSP: 0018:ffffc900079d7560 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff92000f3aeb0 RCX: ffffffff8150ca44 RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc900079d75a0 RBP: ffffc900079d7610 R08: dffffc0000000000 R09: ffffed1021810472 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88810c082388 R14: 0000000000000003 R15: 0000000000000246 FS: 00007f3b39b766c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3b39b76d58 CR3: 0000000126736000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:564 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x72f/0xc70 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:183 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] lock_sock_nested+0x92/0x300 net/core/sock.c:3117 lock_sock include/net/sock.h:1642 [inline] tipc_sendstream+0x47/0x70 net/tipc/socket.c:1540 sock_sendmsg_nosec net/socket.c:652 [inline] __sock_sendmsg net/socket.c:664 [inline] ____sys_sendmsg+0x59e/0x8f0 net/socket.c:2376 ___sys_sendmsg+0x252/0x2e0 net/socket.c:2430 __sys_sendmmsg+0x2c3/0x510 net/socket.c:2516 __do_sys_sendmmsg net/socket.c:2545 [inline] __se_sys_sendmmsg net/socket.c:2542 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2542 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f3b3b525d29 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:00007f3b39b76038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f3b3b716080 RCX: 00007f3b3b525d29 RDX: 000000000000000a RSI: 0000000020008fc0 RDI: 0000000000000003 RBP: 00007f3b3b5a1aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200000d1 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3b3b716080 R15: 00007ffc799f4308 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 406 Comm: syz.0.19 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:preempt_count_sub+0x7/0x160 kernel/sched/core.c:4481 Code: 07 80 c1 03 38 c1 0f 8c 78 ff ff ff 48 c7 c7 08 fc e3 86 e8 7b 34 5f 00 e9 67 ff ff ff 66 0f 1f 44 00 00 55 48 89 e5 41 56 53 <89> fb 48 c7 c0 00 e9 08 87 48 c1 e8 03 49 be 00 00 00 00 00 fc ff RSP: 0018:ffffc90000e46970 EFLAGS: 00000206 RAX: 0000000000000202 RBX: 1ffff920001c8d38 RCX: 0000000000000402 RDX: 0000000000000000 RSI: 0000000000000201 RDI: 0000000000000001 RBP: ffffc90000e46980 R08: dffffc0000000000 R09: ffffed1021810472 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920001c8d34 R13: ffff88810c082388 R14: 0000000000080003 R15: dffffc0000000000 FS: 00007f3b39b976c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005000 CR3: 0000000126736000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __local_bh_enable_ip+0x53/0x80 kernel/softirq.c:197 __raw_spin_trylock_bh include/linux/spinlock_api_smp.h:186 [inline] _raw_spin_trylock_bh+0xf9/0x190 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: 0033:0x7f3b3b525d29 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:00007f3b39b97038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 00000000000203a0 RBX: 00007f3b3b715fa0 RCX: 00007f3b3b525d29 RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000003 RBP: 00007f3b3b5a1aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3b3b715fa0 R15: 00007ffc799f4308