watchdog: BUG: soft lockup - CPU#0 stuck for 126s! [syz-executor.2:18918] Modules linked in: irq event stamp: 14479861 hardirqs last enabled at (14479860): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 hardirqs last disabled at (14479861): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100 softirqs last enabled at (10717870): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last enabled at (10717870): [] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 softirqs last disabled at (10717873): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last disabled at (10717873): [] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 CPU: 0 PID: 18918 Comm: syz-executor.2 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:trylock_clear_pending kernel/locking/qspinlock_paravirt.h:121 [inline] RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3c4/0xb40 kernel/locking/qspinlock.c:508 Code: 00 48 c1 e9 03 83 e3 07 41 be 01 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8d 2c 01 eb 0c f3 90 41 83 ec 01 0f 84 72 04 00 00 <41> 0f b6 45 00 38 d8 7f 08 84 c0 0f 85 91 05 00 00 0f b6 45 00 84 RSP: 0018:ffffc90000007a30 EFLAGS: 00000202 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff19ac734 RDX: 0000000000000001 RSI: ffffffff817aec91 RDI: ffffffff8132b571 RBP: ffffffff8cd639a0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817aec59 R11: 0000000000000080 R12: 00000000000037e3 R13: fffffbfff19ac734 R14: 0000000000000001 R15: ffff8880b9c36400 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100000002 CR3: 000000000bc8e000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [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+0x200/0x2b0 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] mac80211_hwsim_tx_frame_no_nl.isra.0+0x68f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1514 mac80211_hwsim_tx_frame+0x14f/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1775 mac80211_hwsim_beacon_tx+0x4ba/0x910 drivers/net/wireless/mac80211_hwsim.c:1829 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1852 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe40 kernel/time/hrtimer.c:1601 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:compound_head include/linux/page-flags.h:184 [inline] RIP: 0010:PageAnon include/linux/page-flags.h:483 [inline] RIP: 0010:mm_counter include/linux/mm.h:1963 [inline] RIP: 0010:zap_pte_range mm/memory.c:1269 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1374 [inline] RIP: 0010:zap_pud_range mm/memory.c:1403 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1424 [inline] RIP: 0010:unmap_page_range+0xcae/0x2650 mm/memory.c:1445 Code: 85 db 75 0d e8 93 0b cc ff 48 89 ef e8 5b fd f3 ff e8 86 0b cc ff 48 8b 44 24 18 48 c1 e8 03 42 80 3c 30 00 0f 85 23 16 00 00 <48> 8b 45 08 31 ff 49 89 ec 48 89 c3 48 89 84 24 80 00 00 00 83 e3 RSP: 0018:ffffc900028d7780 EFLAGS: 00000246 RAX: 1ffffd40002f5b49 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888064ce9c40 RSI: ffffffff81a8d0fa RDI: 0000000000000003 RBP: ffffea00017ada40 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81a8d09b R11: 0000000000000000 R12: 0000000000000000 R13: ffff888080244230 R14: dffffc0000000000 R15: 00007fb8af247000 unmap_single_vma+0x198/0x300 mm/memory.c:1490 unmap_vmas+0x16d/0x2f0 mm/memory.c:1522 exit_mmap+0x2a8/0x590 mm/mmap.c:3208 __mmput+0x122/0x470 kernel/fork.c:1096 mmput+0x58/0x60 kernel/fork.c:1117 exit_mm kernel/exit.c:502 [inline] do_exit+0xb0a/0x2a60 kernel/exit.c:813 do_group_exit+0x125/0x310 kernel/exit.c:923 get_signal+0x47f/0x2150 kernel/signal.c:2835 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:789 handle_signal_work kernel/entry/common.c:147 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x171/0x280 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: Unable to access opcode bytes at RIP 0x4665af. RSP: 002b:00007fb8ae079188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffea RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000020000740 RSI: 0000000040082406 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffd94e1390f R14: 00007fb8ae079300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 18917 Comm: syz-executor.4 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kasan_check_range+0x17/0x180 mm/kasan/generic.c:185 Code: 0f 1f 00 48 89 f2 be f8 00 00 00 e9 c3 9a 33 02 0f 1f 00 48 85 f6 0f 84 70 01 00 00 49 89 f9 41 54 44 0f b6 c2 49 01 f1 55 53 <0f> 82 18 01 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 c7 0f 86 05 RSP: 0018:ffffc90000dc0458 EFLAGS: 00000082 RAX: 0000000000000000 RBX: ffff888064cedeb8 RCX: ffffffff815a2527 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff902268a0 RBP: ffff888064cedf58 R08: 0000000000000000 R09: ffffffff902268a8 R10: 00000000000000a0 R11: 0000000000000000 R12: ffff888064ced4c0 R13: 0000000000000000 R14: ffffffff909f8fa0 R15: 0000000000046000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558061e83a90 CR3: 000000007cc87000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] hlock_class kernel/locking/lockdep.c:199 [inline] check_wait_context kernel/locking/lockdep.c:4575 [inline] __lock_acquire+0x3d7/0x5230 kernel/locking/lockdep.c:4852 lock_acquire kernel/locking/lockdep.c:5512 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5477 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159 debug_object_deactivate lib/debugobjects.c:730 [inline] debug_object_deactivate+0x101/0x300 lib/debugobjects.c:718 debug_hrtimer_deactivate kernel/time/hrtimer.c:425 [inline] debug_deactivate kernel/time/hrtimer.c:481 [inline] __run_hrtimer kernel/time/hrtimer.c:1505 [inline] __hrtimer_run_queues+0x3f8/0xe40 kernel/time/hrtimer.c:1601 hrtimer_interrupt+0x330/0xa00 kernel/time/hrtimer.c:1663 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline] __sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1106 sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:pv_wait_node kernel/locking/qspinlock_paravirt.h:301 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x5c4/0xb40 kernel/locking/qspinlock.c:473 Code: 32 84 c0 75 23 41 0f b6 14 24 4c 89 e9 83 e1 07 38 ca 7f 08 84 d2 0f 85 ed 03 00 00 0f b6 53 14 84 d2 0f 85 9e 00 00 00 f3 90 <83> e8 01 0f 84 93 00 00 00 0f b6 16 84 d2 74 09 80 fa 03 0f 8e 96 RSP: 0018:ffffc90000dc0a30 EFLAGS: 00000206 RAX: 0000000000000b7b RBX: ffff8880b9c36400 RCX: 0000000000000004 RDX: 0000000000000000 RSI: ffffed10173a6c81 RDI: ffff8880b9d36414 RBP: ffff8880b9d36414 R08: 0000000000000001 R09: ffff8880b9d36414 R10: ffffed10173a6c82 R11: 0000000000000080 R12: ffffed1017386c82 R13: ffff8880b9c36414 R14: dffffc0000000000 R15: ffff8880b9d36400 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [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+0x200/0x2b0 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] mac80211_hwsim_tx_frame_no_nl.isra.0+0x68f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1514 mac80211_hwsim_tx_frame+0x14f/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1775 mac80211_hwsim_beacon_tx+0x4ba/0x910 drivers/net/wireless/mac80211_hwsim.c:1829 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1852 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe40 kernel/time/hrtimer.c:1601 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 __do_softirq+0x29b/0x9f6 kernel/softirq.c:559 invoke_softirq kernel/softirq.c:433 [inline] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:compound_head include/linux/page-flags.h:186 [inline] RIP: 0010:PageAnon include/linux/page-flags.h:483 [inline] RIP: 0010:zap_pte_range mm/memory.c:1260 [inline] RIP: 0010:zap_pmd_range mm/memory.c:1374 [inline] RIP: 0010:zap_pud_range mm/memory.c:1403 [inline] RIP: 0010:zap_p4d_range mm/memory.c:1424 [inline] RIP: 0010:unmap_page_range+0xba3/0x2650 mm/memory.c:1445 Code: 48 85 ed 0f 84 11 fe ff ff e8 99 0c cc ff 48 8d 45 08 48 89 44 24 18 48 c1 e8 03 42 80 3c 30 00 0f 85 a5 17 00 00 48 8b 45 08 <31> ff 49 89 ec 48 89 c3 48 89 84 24 80 00 00 00 83 e3 01 48 89 de RSP: 0018:ffffc90002977780 EFLAGS: 00000246 RAX: dead000000000100 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff888064ced4c0 RSI: ffffffff81a8cfe7 RDI: ffffc90002977a60 RBP: ffffea0000c2a240 R08: 0000000000030a89 R09: 0000000000000001 R10: ffffffff81a8cf27 R11: 0000000000000000 R12: ffffc90002977a68 R13: ffff8880518addf8 R14: dffffc0000000000 R15: 00007f5d3b5c0000 unmap_single_vma+0x198/0x300 mm/memory.c:1490 unmap_vmas+0x16d/0x2f0 mm/memory.c:1522 exit_mmap+0x2a8/0x590 mm/mmap.c:3208 __mmput+0x122/0x470 kernel/fork.c:1096 mmput+0x58/0x60 kernel/fork.c:1117 exit_mm kernel/exit.c:502 [inline] do_exit+0xb0a/0x2a60 kernel/exit.c:813 do_group_exit+0x125/0x310 kernel/exit.c:923 get_signal+0x47f/0x2150 kernel/signal.c:2835 arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:789 handle_signal_work kernel/entry/common.c:147 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x171/0x280 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:301 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:57 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: Unable to access opcode bytes at RIP 0x4665af. RSP: 002b:00007f5d39aef218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000056bf88 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056bf88 RBP: 000000000056bf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf8c R13: 00007ffdfc45cf0f R14: 00007f5d39aef300 R15: 0000000000022000