watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz.2.1225:4856]
Modules linked in:
CPU: 1 PID: 4856 Comm: syz.2.1225 Tainted: G        W         5.10.218-syzkaller-00638-g3feee789f446 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:preempt_count_sub+0x6/0x160 kernel/sched/core.c:4481
Code: e1 07 80 c1 03 38 c1 0f 8c 78 ff ff ff 48 c7 c7 c8 af e3 86 e8 5b 2c 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 89 08 87 48 c1 e8 03 49 be 00 00 00 00 00 fc
RSP: 0018:ffffc90001e5e698 EFLAGS: 00000206
RAX: 0000000000000402 RBX: 1ffff920003cbcdc RCX: ffffc90001e5e603
RDX: 0000000000000000 RSI: 0000000000000201 RDI: 0000000000000200
RBP: ffffc90001e5e6a0 R08: dffffc0000000000 R09: ffffed10212a60b2
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920003cbcd8
R13: ffff888109530588 R14: 0000000000040003 R15: dffffc0000000000
FS:  00007fd6afe386c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002700 CR3: 0000000112178000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 __local_bh_enable_ip+0x22/0x80 kernel/softirq.c:187
 __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 net/tipc/node.c:1739 [inline]
 tipc_node_distr_xmit+0x36a/0x4d0 net/tipc/node.c:1754
 tipc_sk_rcv+0x177d/0x1e30 net/tipc/socket.c:2497
 tipc_node_xmit+0x34b/0xe30 net/tipc/node.c:1674
 tipc_sk_push_backlog+0x4da/0x7b0 net/tipc/socket.c:1306
 tipc_sk_conn_proto_rcv net/tipc/socket.c:1358 [inline]
 tipc_sk_proto_rcv+0xaa9/0x1db0 net/tipc/socket.c:2156
 tipc_sk_filter_rcv+0x3603/0x3e00 net/tipc/socket.c:2350
 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:2583
 release_sock net/core/sock.c:3134 [inline]
 sock_setsockopt+0x1e3b/0x2e00 net/core/sock.c:1257
 __sys_setsockopt+0x441/0x870 net/socket.c:2142
 __do_sys_setsockopt net/socket.c:2157 [inline]
 __se_sys_setsockopt net/socket.c:2154 [inline]
 __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2154
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fd6b0bf8bd9
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:00007fd6afe38048 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fd6b0d87110 RCX: 00007fd6b0bf8bd9
RDX: 0000000000000021 RSI: 0000000000000001 RDI: 000000000000004a
RBP: 00007fd6b0c67e60 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd6b0d87110 R15: 00007ffd8c0db7f8
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4854 Comm: syz.2.1225 Tainted: G        W         5.10.218-syzkaller-00638-g3feee789f446 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
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 95 52 d5 03 f4 eb 0e 0f 1f 44 00 00 0f 00 2d 86 52 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:ffffc90000ef7680 EFLAGS: 00000246
RAX: 0000000000000003 RBX: 1ffff920001deed4 RCX: ffffffff8150b5a4
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc90000ef76c0
RBP: ffffc90000ef7730 R08: dffffc0000000000 R09: ffffed10212a60b2
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888109530588 R14: 0000000000000003 R15: 0000000000000246
FS:  00007fd6afe596c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556c7f4a8 CR3: 0000000112178000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 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:1640 [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_sendmsg net/socket.c:2459 [inline]
 __do_sys_sendmsg net/socket.c:2468 [inline]
 __se_sys_sendmsg+0x1b1/0x280 net/socket.c:2466
 __x64_sys_sendmsg+0x7b/0x90 net/socket.c:2466
 do_syscall_64+0x34/0x70
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fd6b0bf8bd9
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:00007fd6afe59048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd6b0d87038 RCX: 00007fd6b0bf8bd9
RDX: 0000000000000000 RSI: 0000000020002700 RDI: 000000000000004b
RBP: 00007fd6b0c67e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd6b0d87038 R15: 00007ffd8c0db7f8