watchdog: BUG: soft lockup - CPU#0 stuck for 111s! [syz.2.972:3362]
Modules linked in:
CPU: 0 PID: 3362 Comm: syz.2.972 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:ffffc90000e57560 EFLAGS: 00000246
RAX: 0000000000000003 RBX: 1ffff920001caeb0 RCX: ffffffff8150ca44
RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffc90000e575a0
RBP: ffffc90000e57610 R08: dffffc0000000000 R09: ffffed10245ffb32
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888122ffd988 R14: 0000000000000003 R15: 0000000000000246
FS:  00007f4addab66c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4addab5f98 CR3: 0000000105b8e000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 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: 0033:0x7f4adf465d29
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:00007f4addab6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f4adf656080 RCX: 00007f4adf465d29
RDX: 000000000000000a RSI: 0000000020008fc0 RDI: 0000000000000003
RBP: 00007f4adf4e1aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000200000d1 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4adf656080 R15: 00007ffc56b583a8
Sending NMI from CPU 0 to CPUs 1:
Call Trace:
NMI backtrace for cpu 1
CPU: 1 PID: 3359 Comm: syz.2.972 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:kasan_check_range+0x6/0x2a0 mm/kasan/generic.c:188
Code: c6 48 89 c7 e8 fb c4 05 03 31 c0 5d c3 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc cc cc cc cc cc cc cc cc cc 55 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
RSP: 0018:ffffc90000170360 EFLAGS: 00000046
RAX: ffffc9000017056e RBX: ffffc900001703e0 RCX: ffffffff81528014
RDX: 0000000000000001 RSI: 000000000000000c RDI: ffffc900001703e0
RBP: ffffc90000170368 R08: ffffffff8272b3ec R09: fffff5200002e0ae
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000170560
R13: 000000000000000e R14: 0000000000000000 R15: 000000000000000c
FS:  00007f4addad76c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005000 CR3: 0000000105b8e000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 memset+0x23/0x40 mm/kasan/shadow.c:44
 print_caller kernel/printk/printk.c:1314 [inline]
 info_print_prefix+0x1b4/0x300 kernel/printk/printk.c:1335
 record_print_text kernel/printk/printk.c:1382 [inline]
 console_unlock+0x849/0x1390 kernel/printk/printk.c:2538
 vprintk_emit+0x1c0/0x380 kernel/printk/printk.c:2069
 vprintk_default+0x26/0x30 kernel/printk/printk.c:2086
 vprintk_func+0x19d/0x1e0 kernel/printk/printk_safe.c:401
 printk+0xd1/0x111 kernel/printk/printk.c:2117
 show_trace_log_lvl+0xdd/0x380 arch/x86/kernel/dumpstack.c:195
 show_stack+0x37/0x40 arch/x86/kernel/dumpstack.c:321
 sched_show_task+0x35b/0x540 kernel/sched/core.c:6747
 rcu_check_gp_kthread_starvation+0x181/0x1d0 kernel/rcu/tree_stall.h:465
 print_cpu_stall kernel/rcu/tree_stall.h:574 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:659 [inline]
 rcu_pending kernel/rcu/tree.c:3783 [inline]
 rcu_sched_clock_irq+0xf85/0x1890 kernel/rcu/tree.c:2590
 update_process_times+0x198/0x200 kernel/time/timer.c:1748
 tick_sched_handle kernel/time/tick-sched.c:225 [inline]
 tick_sched_timer+0x188/0x240 kernel/time/tick-sched.c:1389
 __run_hrtimer kernel/time/hrtimer.c:1585 [inline]
 __hrtimer_run_queues+0x3d7/0xa50 kernel/time/hrtimer.c:1649
 hrtimer_interrupt+0x39a/0x8b0 kernel/time/hrtimer.c:1711
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0xfb/0x3f0 arch/x86/kernel/apic/apic.c:1112
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline]
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline]
 sysvec_apic_timer_interrupt+0x85/0xe0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x2a0 mm/kasan/generic.c:189
Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4d 89 f5 4d 29 cd 49 83 fd 10 7f 26 4d 85 ed 0f 84 44 01 00 00 49 f7 d2 4d 01 e2 41 80 39 00 <0f> 85 d2 01 00 00 49 ff c1 49 ff c2 75 ee e9 27 01 00 00 45 89 cf
RSP: 0018:ffffc900013b68f8 EFLAGS: 00000246
RAX: 0000000000000301 RBX: 000000000001ffff RCX: ffffffff849a23ff
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888122ffd980
RBP: ffffc900013b6920 R08: dffffc0000000000 R09: ffffed10245ffb30
R10: ffffffffffffffff R11: dffffc0000000001 R12: 1ffff110245ffb30
R13: 0000000000000001 R14: ffffed10245ffb31 R15: 000000000000035c
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_fetch_add_relaxed include/asm-generic/atomic-instrumented.h:142 [inline]
 __refcount_add include/linux/refcount.h:193 [inline]
 __refcount_inc include/linux/refcount.h:250 [inline]
 refcount_inc include/linux/refcount.h:267 [inline]
 sock_hold include/net/sock.h:732 [inline]
 tipc_sk_lookup+0x4df/0x650 net/tipc/socket.c:2999
 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: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: 0033:0x7f4adf465d29
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:00007f4addad7038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 00000000000203a0 RBX: 00007f4adf655fa0 RCX: 00007f4adf465d29
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000003
RBP: 00007f4adf4e1aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4adf655fa0 R15: 00007ffc56b583a8
 context_switch kernel/sched/core.c:4046 [inline]
 __schedule+0xbe6/0x1330 kernel/sched/core.c:4804
 schedule+0x13d/0x1d0 kernel/sched/core.c:4882
 schedule_timeout+0x18c/0x360 kernel/time/timer.c:1913
 rcu_gp_fqs_loop kernel/rcu/tree.c:1943 [inline]
 rcu_gp_kthread+0xefc/0x23a0 kernel/rcu/tree.c:2117
 kthread+0x34b/0x3d0 kernel/kthread.c:313
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
NMI backtrace for cpu 1
CPU: 1 PID: 3359 Comm: syz.2.972 Tainted: G             L    5.10.231-syzkaller-00700-g4055d754db6f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack_lvl+0x1e2/0x24b lib/dump_stack.c:118
 dump_stack+0x15/0x17 lib/dump_stack.c:135
 nmi_cpu_backtrace lib/nmi_backtrace.c:105 [inline]
 nmi_trigger_cpumask_backtrace+0x2b5/0x300 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x10/0x20 arch/x86/kernel/apic/hw_nmi.c:39
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_dump_cpu_stacks+0x199/0x2b0 kernel/rcu/tree_stall.h:337
 print_cpu_stall kernel/rcu/tree_stall.h:576 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:659 [inline]
 rcu_pending kernel/rcu/tree.c:3783 [inline]
 rcu_sched_clock_irq+0xf8a/0x1890 kernel/rcu/tree.c:2590
 update_process_times+0x198/0x200 kernel/time/timer.c:1748
 tick_sched_handle kernel/time/tick-sched.c:225 [inline]
 tick_sched_timer+0x188/0x240 kernel/time/tick-sched.c:1389
 __run_hrtimer kernel/time/hrtimer.c:1585 [inline]
 __hrtimer_run_queues+0x3d7/0xa50 kernel/time/hrtimer.c:1649
 hrtimer_interrupt+0x39a/0x8b0 kernel/time/hrtimer.c:1711
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0xfb/0x3f0 arch/x86/kernel/apic/apic.c:1112
 asm_call_irq_on_stack+0xf/0x20
 </IRQ>
 __run_sysvec_on_irqstack arch/x86/include/asm/irq_stack.h:37 [inline]
 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:89 [inline]
 sysvec_apic_timer_interrupt+0x85/0xe0 arch/x86/kernel/apic/apic.c:1106
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x2a0 mm/kasan/generic.c:189
Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4d 89 f5 4d 29 cd 49 83 fd 10 7f 26 4d 85 ed 0f 84 44 01 00 00 49 f7 d2 4d 01 e2 41 80 39 00 <0f> 85 d2 01 00 00 49 ff c1 49 ff c2 75 ee e9 27 01 00 00 45 89 cf
RSP: 0018:ffffc900013b68f8 EFLAGS: 00000246
RAX: 0000000000000301 RBX: 000000000001ffff RCX: ffffffff849a23ff
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888122ffd980
RBP: ffffc900013b6920 R08: dffffc0000000000 R09: ffffed10245ffb30
R10: ffffffffffffffff R11: dffffc0000000001 R12: 1ffff110245ffb30
R13: 0000000000000001 R14: ffffed10245ffb31 R15: 000000000000035c
 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
 instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
 atomic_fetch_add_relaxed include/asm-generic/atomic-instrumented.h:142 [inline]
 __refcount_add include/linux/refcount.h:193 [inline]
 __refcount_inc include/linux/refcount.h:250 [inline]
 refcount_inc include/linux/refcount.h:267 [inline]
 sock_hold include/net/sock.h:732 [inline]
 tipc_sk_lookup+0x4df/0x650 net/tipc/socket.c:2999
 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: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: 0033:0x7f4adf465d29
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:00007f4addad7038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: 00000000000203a0 RBX: 00007f4adf655fa0 RCX: 00007f4adf465d29
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000003
RBP: 00007f4adf4e1aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f4adf655fa0 R15: 00007ffc56b583a8