watchdog: BUG: soft lockup - CPU#0 stuck for 135s! [syz-executor.1:29334] Modules linked in: irq event stamp: 0 hardirqs last enabled at (0): [<0000000000000000>] 0x0 hardirqs last disabled at (0): [] copy_process+0x1dcd/0x7510 kernel/fork.c:2061 softirqs last enabled at (0): [] copy_process+0x1e0e/0x7510 kernel/fork.c:2065 softirqs last disabled at (0): [<0000000000000000>] 0x0 CPU: 0 PID: 29334 Comm: syz-executor.1 Tainted: G W 5.14.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0x78f/0x1330 drivers/net/wireless/mac80211_hwsim.c:1527 Code: bb ac 3c 00 00 48 89 f8 48 89 fa 48 c1 e8 03 83 e2 07 0f b6 04 28 38 d0 7f 08 84 c0 0f 85 36 09 00 00 44 0f b6 bb ac 3c 00 00 <31> ff 44 89 fe e8 37 5e 43 fc 45 84 ff 0f 84 77 ff ff ff e8 e9 57 RSP: 0018:ffffc90000007ba0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88808dbbb260 RCX: 0000000000000100 RDX: 0000000000000004 RSI: ffffffff85323183 RDI: ffff88808dbbef0c RBP: dffffc0000000000 R08: 0000000000000002 R09: 0000000000000000 R10: ffffffff853231b9 R11: 0000000000000000 R12: ffff8880359d8b40 R13: ffff888058ec3490 R14: ffff888058ec3260 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc7cc3f4740 CR3: 00000000133ff000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784 mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 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:638 RIP: 0010:page_memcg+0xa/0x250 include/linux/memcontrol.h:451 Code: ff ff 48 c7 c7 a4 1d 6c 8d e8 52 2c fa ff e9 df f3 ff ff e8 58 2c fa ff e9 a4 f4 ff ff 0f 1f 00 48 b8 00 00 00 00 00 fc ff df <41> 54 55 48 89 fd 48 83 c7 38 48 89 fa 53 48 c1 ea 03 80 3c 02 00 RSP: 0018:ffffc900032f7728 EFLAGS: 00000202 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffffffff81c218f1 RSI: 0000000000000002 RDI: ffffea0001acae40 RBP: ffff88813fffb000 R08: 0000000000000000 R09: ffffffff8d6c1bd7 R10: fffffbfff1ad837a R11: 0000000000000000 R12: 00000000ffffffff R13: 0000000000000012 R14: ffffea0001acae40 R15: 00007f67e25c6000 __mod_lruvec_page_state+0xd4/0x2c0 mm/memcontrol.c:746 page_remove_file_rmap mm/rmap.c:1286 [inline] page_remove_rmap+0x71f/0x1480 mm/rmap.c:1348 zap_pte_range mm/memory.c:1362 [inline] zap_pmd_range mm/memory.c:1481 [inline] zap_pud_range mm/memory.c:1510 [inline] zap_p4d_range mm/memory.c:1531 [inline] unmap_page_range+0xed5/0x2a10 mm/memory.c:1552 unmap_single_vma+0x198/0x300 mm/memory.c:1597 unmap_vmas+0x16d/0x2f0 mm/memory.c:1629 exit_mmap+0x1d0/0x620 mm/mmap.c:3201 __mmput+0x122/0x470 kernel/fork.c:1101 mmput+0x58/0x60 kernel/fork.c:1122 exit_mm kernel/exit.c:501 [inline] do_exit+0xae2/0x2a60 kernel/exit.c:812 do_group_exit+0x125/0x310 kernel/exit.c:922 get_signal+0x47f/0x2160 kernel/signal.c:2808 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:865 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:209 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 Code: Unable to access opcode bytes at RIP 0x4665bf. RSP: 002b:00007f67e190a188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 000000000000005c RBX: 000000000056c038 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000006 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffefb295bef R14: 00007f67e190a300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 29319 Comm: syz-executor.0 Tainted: G W 5.14.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_kcov_mode kernel/kcov.c:163 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x2d/0x60 kernel/kcov.c:197 Code: 09 66 8c 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 00 f0 01 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 34 15 00 00 <85> c0 74 2b 8b 82 10 15 00 00 83 f8 02 75 20 48 8b 8a 18 15 00 00 RSP: 0018:ffffc90000dc0318 EFLAGS: 00000006 RAX: 0000000000000000 RBX: ffff88804c1cd160 RCX: 0000000000000100 RDX: ffff8880778b3880 RSI: ffffffff81971649 RDI: ffff88804c1cd448 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff81971600 R11: 0000000000000000 R12: ffffc90000dc05c0 R13: ffff88804c1cd160 R14: ffffc90000dc0988 R15: 0000000000000008 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f95025eaaf0 CR3: 000000000b68e000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: __perf_output_begin kernel/events/ring_buffer.c:170 [inline] perf_output_begin_forward+0x109/0xae0 kernel/events/ring_buffer.c:268 __perf_event_output kernel/events/core.c:7450 [inline] perf_event_output_forward+0xf2/0x280 kernel/events/core.c:7468 __perf_event_overflow+0x13c/0x3d0 kernel/events/core.c:9140 perf_swevent_hrtimer+0x37c/0x3f0 kernel/events/core.c:10540 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x1c0/0xe50 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+0x146/0x530 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:638 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3ba/0xb40 kernel/locking/qspinlock.c:508 Code: eb c6 45 01 01 41 bc 00 80 00 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 RSP: 0018:ffffc90000dc0a30 EFLAGS: 00000206 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff18ef238 RDX: 0000000000000001 RSI: ffffffff817bad21 RDI: ffffffff81330591 RBP: ffffffff8c7791c0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff817bace9 R11: 0000000000000080 R12: 0000000000007f58 R13: fffffbfff18ef238 R14: 0000000000000001 R15: ffff8880b9d527c0 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:1516 mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784 mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838 __iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861 __run_hrtimer kernel/time/hrtimer.c:1537 [inline] __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1601 hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1618 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x16e/0x1c0 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 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:638 RIP: 0010:unlock_page_memcg+0xa/0x2c0 mm/memcontrol.c:2065 Code: 38 e9 f9 fb ff ff 4c 89 c7 4c 89 44 24 38 e8 bd 64 fa ff 4c 8b 44 24 38 e9 bb fb ff ff 0f 1f 00 48 b8 00 00 00 00 00 fc ff df <41> 54 55 48 89 fd 48 83 c7 08 48 89 fa 53 48 c1 ea 03 48 83 ec 08 RSP: 0018:ffffc900032577a8 EFLAGS: 00000286 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880778b3880 RSI: ffffffff81af70d7 RDI: ffffea00012dc6c0 RBP: ffffea00012dc6c0 R08: 0000000000000000 R09: ffffea00012dc6c7 R10: ffffffff81af77f8 R11: 0000000000000000 R12: ffffea00012dc6c8 R13: 0000000000000000 R14: dffffc0000000000 R15: 00007f3485f6b000 zap_pte_range mm/memory.c:1362 [inline] zap_pmd_range mm/memory.c:1481 [inline] zap_pud_range mm/memory.c:1510 [inline] zap_p4d_range mm/memory.c:1531 [inline] unmap_page_range+0xed5/0x2a10 mm/memory.c:1552 unmap_single_vma+0x198/0x300 mm/memory.c:1597 unmap_vmas+0x16d/0x2f0 mm/memory.c:1629 exit_mmap+0x1d0/0x620 mm/mmap.c:3201 __mmput+0x122/0x470 kernel/fork.c:1101 mmput+0x58/0x60 kernel/fork.c:1122 exit_mm kernel/exit.c:501 [inline] do_exit+0xae2/0x2a60 kernel/exit.c:812 do_group_exit+0x125/0x310 kernel/exit.c:922 get_signal+0x47f/0x2160 kernel/signal.c:2808 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:865 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:209 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:302 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 Code: Unable to access opcode bytes at RIP 0x4665bf. RSP: 002b:00007f3485180188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: 0000000000000015 RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000005 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffef4e886df R14: 00007f3485180300 R15: 0000000000022000