watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.3:19735] Modules linked in: irq event stamp: 2256843 hardirqs last enabled at (2256842): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (2256843): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2248698): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2248701): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2248701): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 19735 Comm: syz-executor.3 Not tainted 4.19.195-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:261 [inline] RIP: 0010:find_rr_leaf net/ipv6/route.c:713 [inline] RIP: 0010:rt6_select net/ipv6/route.c:769 [inline] RIP: 0010:fib6_table_lookup+0x4da/0xf40 net/ipv6/route.c:1876 Code: 24 0c 48 8d 8c 24 c8 00 00 00 48 89 df e8 9e 1d ff ff 49 89 c4 e8 36 c1 5a fa 48 8d 7b 08 48 89 f8 48 c1 e8 03 42 80 3c 38 00 <0f> 85 01 09 00 00 48 8b 5b 08 e8 37 dd 48 fa 31 ff 89 c5 89 c6 e8 RSP: 0018:ffff8880ba1076f0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff11013fad039 RBX: ffff88809fd681c0 RCX: ffffffff8706dd9e RDX: 0000000000000100 RSI: ffffffff8707bdfa RDI: ffff88809fd681c8 RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000fffffffd R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000100 R14: 0000000000000025 R15: dffffc0000000000 FS: 00007f13747da700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000541198 CR3: 0000000057b5d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_pol_route+0x180/0x1270 net/ipv6/route.c:1909 fib6_rule_lookup+0x10b/0x4e0 net/ipv6/fib6_rules.c:118 ip6_route_input_lookup net/ipv6/route.c:1990 [inline] ip6_route_input+0x709/0xa40 net/ipv6/route.c:2125 ip6_rcv_finish_core.constprop.0.isra.0+0xd7/0x550 net/ipv6/ip6_input.c:63 ip6_rcv_finish+0x176/0x2f0 net/ipv6/ip6_input.c:74 NF_HOOK include/linux/netfilter.h:289 [inline] ipv6_rcv+0xf2/0x3f0 net/ipv6/ip6_input.c:273 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:4954 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066 process_backlog+0x241/0x700 net/core/dev.c:5848 napi_poll net/core/dev.c:6272 [inline] net_rx_action+0x4ac/0xfb0 net/core/dev.c:6338 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:435 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3a6/0xae0 kernel/locking/qspinlock.c:474 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 38 04 00 00 41 0f b6 45 00 38 d8 7f 08 84 c0 0f RSP: 0018:ffff8880271b73c0 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff1403174 RDX: 0000000000000001 RSI: ffffffff8167a625 RDI: 0000000000000286 RBP: ffffffff8a018ba0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000075c7 R13: fffffbfff1403174 R14: 0000000000000001 R15: ffff8880ba12bd80 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:679 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:53 [inline] queued_spin_lock include/asm-generic/qspinlock.h:88 [inline] do_raw_spin_lock+0x189/0x220 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:329 [inline] s_start+0x15/0x50 mm/vmalloc.c:2665 seq_read+0x2a0/0x1160 fs/seq_file.c:224 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x457/0xa00 fs/splice.c:417 do_splice_to+0x10e/0x160 fs/splice.c:881 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665d9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f13747da188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffdb052d33f R14: 00007f13747da300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 19730 Comm: syz-executor.2 Not tainted 4.19.195-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mark_lock+0xa6/0x1160 kernel/locking/lockdep.c:3106 Code: 01 00 00 48 81 eb 50 01 00 00 48 81 c3 80 c5 d5 8c 48 8d 7b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 04 0d 00 00 4c 89 e0 48 23 43 30 0f 84 ad 00 00 00 b8 01 00 RSP: 0018:ffff8880ba007768 EFLAGS: 00000046 RAX: dffffc0000000000 RBX: ffffffff8cd612f0 RCX: 1ffff1100a64cdd6 RDX: 1ffffffff19ac264 RSI: ffff888053266e90 RDI: ffffffff8cd61320 RBP: ffff888053266e90 R08: 000000000000003c R09: 0000000000000005 R10: ffff888053266e90 R11: ffffffff8c66201b R12: 0000000000000002 R13: ffff888053266540 R14: ffff888053266eb0 R15: 0000000000000001 FS: 00007f18626d6700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f19a3809710 CR3: 000000002751b000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_irqflags kernel/locking/lockdep.c:2998 [inline] __lock_acquire+0x10b2/0x3ff0 kernel/locking/lockdep.c:3373 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 seqcount_lockdep_reader_access include/linux/seqlock.h:81 [inline] read_seqcount_begin include/linux/seqlock.h:164 [inline] ktime_get_update_offsets_now+0xcd/0x460 kernel/time/timekeeping.c:2225 hrtimer_update_base kernel/time/hrtimer.c:621 [inline] hrtimer_interrupt+0x138/0x9e0 kernel/time/hrtimer.c:1521 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 48 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d 5c 15 d9 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 1b d0 e7 f8 eb c0 0f 0b 0f 0b 48 c7 c7 48 RSP: 0018:ffff8880ba007c08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3049 RBX: 0000000000000286 RCX: 1ffff1100a64cdcc RDX: dffffc0000000000 RSI: ffff888053266e40 RDI: 0000000000000286 RBP: ffff888096cbc7d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809e9c2e00 R13: ffff888050075b00 R14: ffff888050075c18 R15: 0000000000009704 ieee80211_rx_irqsafe+0x83/0xd0 net/mac80211/rx.c:4694 mac80211_hwsim_tx_frame_no_nl.isra.0+0xcaf/0x1330 drivers/net/wireless/mac80211_hwsim.c:1369 mac80211_hwsim_tx_frame+0x12b/0x210 drivers/net/wireless/mac80211_hwsim.c:1556 mac80211_hwsim_beacon_tx+0x3f8/0x680 drivers/net/wireless/mac80211_hwsim.c:1595 __iterate_interfaces+0x2e1/0x4a0 net/mac80211/util.c:614 ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:650 mac80211_hwsim_beacon+0xc9/0x190 drivers/net/wireless/mac80211_hwsim.c:1615 __tasklet_hrtimer_trampoline+0x29/0xa0 kernel/softirq.c:601 tasklet_action_common.constprop.0+0x265/0x360 kernel/softirq.c:522 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:ptr_to_id lib/vsprintf.c:1718 [inline] RIP: 0010:pointer+0x137/0x850 lib/vsprintf.c:1976 Code: 00 e8 1d de 72 f9 48 8b 4c 24 28 4c 89 ea 4c 89 f6 48 89 ef e8 6a 94 ff ff 49 89 c4 eb 5a e8 00 de 72 f9 44 8b 3d f1 3c e0 01 <31> ff 4c 8b 64 24 28 44 89 fe e8 5a df 72 f9 45 85 ff 0f 85 a1 05 RSP: 0018:ffff88805be7f1c8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 1ffff1100b7cfe3a RCX: ffffc90005f55000 RDX: 0000000000040000 RSI: ffffffff87efa130 RDI: 0000000000000005 RBP: ffff8880980869b0 R08: ffff0a00ffffff05 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: ffffc90001c3d000 R14: ffff8880980876c0 R15: 0000000000000000 vsnprintf+0x5b2/0x14f0 lib/vsprintf.c:2297 seq_vprintf fs/seq_file.c:391 [inline] seq_printf+0x195/0x240 fs/seq_file.c:406 s_show mm/vmalloc.c:2726 [inline] s_show+0x177/0x840 mm/vmalloc.c:2704 seq_read+0xbcd/0x1160 fs/seq_file.c:268 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x457/0xa00 fs/splice.c:417 do_splice_to+0x10e/0x160 fs/splice.c:881 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665d9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f18626d6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff476c1ddf R14: 00007f18626d6300 R15: 0000000000022000