watchdog: BUG: soft lockup - CPU#0 stuck for 121s! [syz-executor.2:7216] Modules linked in: irq event stamp: 0 hardirqs last enabled at (0): [<0000000000000000>] 0x0 hardirqs last disabled at (0): [] copy_process+0x21e7/0x7400 kernel/fork.c:2442 softirqs last enabled at (0): [] copy_process+0x2228/0x7400 kernel/fork.c:2446 softirqs last disabled at (0): [<0000000000000000>] 0x0 CPU: 0 PID: 7216 Comm: syz-executor.2 Not tainted 6.6.0-rc1-syzkaller-00198-g81335f90e8a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:ipv6_chk_mcast_addr+0xe5/0x9a0 net/ipv6/mcast.c:1024 Code: 87 f8 48 8d 7d 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 0a 08 00 00 48 8b 5d 20 e8 cb b5 3e 01 <31> ff 89 c5 89 c6 e8 a0 76 87 f8 85 ed 0f 85 f5 03 00 00 e8 23 7b RSP: 0018:ffffc90000007a38 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888062aef000 RCX: 0000000000000100 RDX: 1ffff11002757004 RSI: ffffffff8900531d RDI: ffff888013ab8020 RBP: ffff888013ab8000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0200000000000000 R12: ffff888078c81828 R13: ffff88801f69d650 R14: ffff888078c81800 R15: ffff88801f69d6b0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30724000 CR3: 000000002fa29000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: ip6_mc_input+0x38d/0xf40 net/ipv6/ip6_input.c:523 dst_input include/net/dst.h:468 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:79 [inline] NF_HOOK include/linux/netfilter.h:304 [inline] NF_HOOK include/linux/netfilter.h:298 [inline] ipv6_rcv+0x4a9/0x6f0 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core+0x115/0x180 net/core/dev.c:5523 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5637 process_backlog+0x101/0x6c0 net/core/dev.c:5965 __napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6527 napi_poll net/core/dev.c:6594 [inline] net_rx_action+0x956/0xe90 net/core/dev.c:6727 __do_softirq+0x218/0x965 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:__schedule+0xee9/0x59f0 kernel/sched/core.c:6577 Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 dc 43 00 00 48 8b bd 10 ff ff ff 49 89 5f 10 48 89 de e8 4f 4b bf f6 48 89 c7 e8 b7 1a 1a f7 <48> 8b 9d 98 fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 RSP: 0018:ffffc90015af77d0 EFLAGS: 00000246 RAX: 0000000000000003 RBX: ffff8880b983d1d0 RCX: 1ffffffff1d9cb7b RDX: 0000000000000000 RSI: ffffffff8ae92920 RDI: ffffffff8a412f40 RBP: ffffc90015af7968 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8ece2657 R11: 0000000000000001 R12: ffff88801bee3e10 R13: 0000000000000000 R14: ffff88801bee3b80 R15: ffff8880b983c700 preempt_schedule_irq+0x52/0x90 kernel/sched/core.c:7007 irqentry_exit+0x35/0x80 kernel/entry/common.c:432 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:602 [inline] RIP: 0010:__mutex_lock+0x14f/0x1340 kernel/locking/mutex.c:747 Code: 29 49 8d 7e 60 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 00 0d 00 00 4d 3b 76 60 0f 85 67 07 00 00 01 00 00 00 e8 c7 1d 19 f7 49 8d 46 68 31 d2 4d 89 e1 48 89 85 RSP: 0018:ffffc90015af7a40 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1ffffffff199526c RSI: 0000000000000244 RDI: ffffffff8cca9360 RBP: ffffc90015af7b90 R08: ffffffff81b3d31b R09: 0000000000000000 R10: ffffc90015af7bb0 R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffffff8cca9300 R15: 0000000000000000 uprobe_clear_state+0x4b/0x420 kernel/events/uprobes.c:1545 __mmput+0x79/0x4d0 kernel/fork.c:1345 mmput+0x62/0x70 kernel/fork.c:1371 exit_mm kernel/exit.c:567 [inline] do_exit+0x9b4/0x2a20 kernel/exit.c:861 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 get_signal+0x23d1/0x27b0 kernel/signal.c:2892 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:309 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0033:0x7f0027233959 Code: Unable to access opcode bytes at 0x7f002723392f. RSP: 002b:00007f002803d180 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 00007f002739c058 RCX: 00007f00272e26b0 RDX: 0000000000031fa2 RSI: 0000000000000000 RDI: 00007f00272eacda RBP: 00007f002739c050 R08: 0000000000000000 R09: 0000000000000001 R10: 00007ffee8df7080 R11: 0000000001f825a1 R12: 00007f002739c05c R13: 000000000000000b R14: 00007ffee8cfe6d0 R15: 00007ffee8cfe7b8 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7215 Comm: syz-executor.3 Not tainted 6.6.0-rc1-syzkaller-00198-g81335f90e8a8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 RIP: 0010:rcu_is_watching+0x7c/0xb0 kernel/rcu/tree.c:700 Code: 89 da 48 c1 ea 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1c 8b 03 c1 e8 02 83 e0 01 65 ff 0d 8c 5c 93 7e <74> 03 5b 5d c3 e8 da 21 90 ff 5b 5d c3 48 89 df e8 2f 3a 6d 00 eb RSP: 0018:ffffc900001f0300 EFLAGS: 00000002 RAX: 0000000000000001 RBX: ffff8880b9936de8 RCX: ffffffff81689767 RDX: 0000000000000000 RSI: ffffffff8ae92920 RDI: ffffffff8c5cea48 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff1d9c4ca R10: ffffffff8ece2657 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: ffffffff8cbd7288 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556431938 CR3: 000000002e96e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_lock_acquire include/trace/events/lock.h:24 [inline] lock_acquire+0x464/0x510 kernel/locking/lockdep.c:5724 seqcount_lockdep_reader_access include/linux/seqlock.h:102 [inline] ktime_get+0x80/0x490 kernel/time/timekeeping.c:846 clockevents_program_event+0x14b/0x370 kernel/time/clockevents.c:326 tick_program_event+0xa5/0x130 kernel/time/tick-oneshot.c:44 hrtimer_interrupt+0x36d/0x800 kernel/time/hrtimer.c:1827 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1063 [inline] __sysvec_apic_timer_interrupt+0x105/0x3f0 arch/x86/kernel/apic/apic.c:1080 sysvec_apic_timer_interrupt+0x42/0xc0 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:__sanitizer_cov_trace_switch+0x4a/0x90 kernel/kcov.c:341 Code: f8 08 74 53 48 83 f8 10 75 2f 41 bd 03 00 00 00 4c 8b 75 00 31 db 4d 85 f6 74 1e 48 8b 74 dd 10 4c 89 e2 4c 89 ef 48 83 c3 01 <48> 8b 4c 24 28 e8 1c fe ff ff 49 39 de 75 e2 5b 5d 41 5c 41 5d 41 RSP: 0018:ffffc900001f0648 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff813a4e25 RDX: 0000000000000005 RSI: 0000000000000003 RDI: 0000000000000001 RBP: ffffffff8a89cf40 R08: 0000000000000001 R09: 0000000000000002 R10: 0000000000000005 R11: 0000007bab83abb2 R12: 0000000000000005 R13: 0000000000000001 R14: 0000000000000008 R15: ffffc900001f072d unwind_next_frame+0x6b5/0x2390 arch/x86/kernel/unwind_orc.c:515 arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook mm/slab.h:762 [inline] slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3523 __alloc_skb+0x287/0x330 net/core/skbuff.c:640 __netdev_alloc_skb+0x72/0x3f0 net/core/skbuff.c:714 netdev_alloc_skb include/linux/skbuff.h:3225 [inline] dev_alloc_skb include/linux/skbuff.h:3238 [inline] __ieee80211_beacon_get+0xc2f/0x16e0 net/mac80211/tx.c:5425 ieee80211_beacon_get_tim+0xa5/0x570 net/mac80211/tx.c:5547 ieee80211_beacon_get include/net/mac80211.h:5421 [inline] mac80211_hwsim_beacon_tx+0x3f6/0x730 drivers/net/wireless/virtual/mac80211_hwsim.c:2260 __iterate_interfaces+0x2d2/0x580 net/mac80211/util.c:766 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 net/mac80211/util.c:802 mac80211_hwsim_beacon+0x101/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2290 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x203/0xc10 kernel/time/hrtimer.c:1752 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1769 __do_softirq+0x218/0x965 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu kernel/softirq.c:632 [inline] irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:preempt_schedule_irq+0x4d/0x90 kernel/sched/core.c:7007 Code: 55 65 48 8b 2c 25 c0 bc 03 00 53 48 89 eb 48 c1 eb 03 48 01 c3 bf 01 00 00 00 e8 6e 4f 19 f7 e8 f9 29 4d f7 fb bf 01 00 00 00 5e 99 ff ff 9c 58 fa f6 c4 02 75 1a bf 01 00 00 00 e8 ac 15 19 RSP: 0018:ffffc90015b674f8 EFLAGS: 00000246 RAX: 0000000000000003 RBX: ffffed10037dcb28 RCX: 1ffffffff1d9cb7b RDX: 0000000000000000 RSI: ffffffff8ae92920 RDI: 0000000000000001 RBP: ffff88801bee5940 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8ece2657 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 irqentry_exit+0x35/0x80 kernel/entry/common.c:432 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 RIP: 0010:release_pages+0x2c4/0x14e0 mm/swap.c:969 Code: 23 00 f0 ff 0b 0f 94 c3 31 ff 89 de e8 f5 ae cd ff 84 db 0f 85 11 0b 00 00 48 c7 04 24 00 00 00 00 e8 b0 b3 cd ff 8b 5c 24 0c <83> c5 01 49 83 c4 08 89 ee 89 df e8 8c ae cd ff 39 eb 0f 85 40 fe RSP: 0018:ffffc90015b675c8 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88801bee5940 RSI: ffffffff81ba1ad0 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 1ffff11002c5c08a R12: ffffc90015b67b08 R13: 0000000000000003 R14: ffffea000115cd80 R15: dffffc0000000000 tlb_batch_pages_flush+0x9a/0x190 mm/mmu_gather.c:98 zap_pte_range mm/memory.c:1534 [inline] zap_pmd_range mm/memory.c:1573 [inline] zap_pud_range mm/memory.c:1602 [inline] zap_p4d_range mm/memory.c:1623 [inline] unmap_page_range+0x19b7/0x2c10 mm/memory.c:1644 unmap_single_vma+0x194/0x2b0 mm/memory.c:1690 unmap_vmas+0x1e8/0x330 mm/memory.c:1731 exit_mmap+0x1ad/0xa60 mm/mmap.c:3210 __mmput+0x12a/0x4d0 kernel/fork.c:1349 mmput+0x62/0x70 kernel/fork.c:1371 exit_mm kernel/exit.c:567 [inline] do_exit+0x9b4/0x2a20 kernel/exit.c:861 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 get_signal+0x23d1/0x27b0 kernel/signal.c:2892 arch_do_signal_or_restart+0x90/0x7f0 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8ad427cae9 Code: Unable to access opcode bytes at 0x7f8ad427cabf. RSP: 002b:00007f8ad4f210c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000000 RBX: 00007f8ad439bf80 RCX: 00007f8ad427cae9 RDX: 00000000200004c0 RSI: 0000000000005452 RDI: 0000000000000005 RBP: 00007f8ad42c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f8ad439bf80 R15: 00007ffc323b9328