watchdog: BUG: soft lockup - CPU#1 stuck for 144s! [syz-executor.5:11651] Modules linked in: irq event stamp: 13812021 hardirqs last enabled at (13812020): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 hardirqs last disabled at (13812021): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1100 softirqs last enabled at (12126818): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last enabled at (12126818): [] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 softirqs last disabled at (12126821): [] invoke_softirq kernel/softirq.c:433 [inline] softirqs last disabled at (12126821): [] __irq_exit_rcu+0x136/0x200 kernel/softirq.c:637 CPU: 1 PID: 11651 Comm: syz-executor.5 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:30 [inline] RIP: 0010:__orc_find+0x6f/0xf0 arch/x86/kernel/unwind_orc.c:52 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 48 48 63 03 48 01 RSP: 0018:ffffc90000dc0600 EFLAGS: 00000a03 RAX: 1ffffffff1baa994 RBX: ffffffff8dd54ca4 RCX: ffffffff812b89eb RDX: 0000000000000000 RSI: ffffffff8e413f20 RDI: ffffffff8dd54c9c RBP: ffffffff8dd54c9c R08: 0000000000000000 R09: ffffffff8e413f20 R10: fffff520001b80f9 R11: 0000000000084087 R12: ffffffff8dd54cac R13: ffffffff8dd54c9c R14: ffffffff8dd54c9c R15: dffffc0000000000 FS: 00007f0ab7287700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000004 CR3: 000000007c271000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: orc_find arch/x86/kernel/unwind_orc.c:173 [inline] unwind_next_frame+0x32a/0x1ce0 arch/x86/kernel/unwind_orc.c:443 __unwind_start+0x51b/0x800 arch/x86/kernel/unwind_orc.c:699 unwind_start arch/x86/include/asm/unwind.h:60 [inline] arch_stack_walk+0x5c/0xe0 arch/x86/kernel/stacktrace.c:24 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:428 [inline] __kasan_slab_alloc+0x84/0xa0 mm/kasan/common.c:461 kasan_slab_alloc include/linux/kasan.h:236 [inline] slab_post_alloc_hook mm/slab.h:524 [inline] slab_alloc_node mm/slub.c:2913 [inline] kmem_cache_alloc_node+0x269/0x3e0 mm/slub.c:2949 __alloc_skb+0x20b/0x340 net/core/skbuff.c:413 skb_copy+0x137/0x2f0 net/core/skbuff.c:1562 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb17/0x1330 drivers/net/wireless/mac80211_hwsim.c:1563 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:schedule_debug kernel/sched/core.c:4912 [inline] RIP: 0010:__schedule+0x198/0x23e0 kernel/sched/core.c:5038 Code: 85 18 0b 00 00 65 8b 05 86 1c ea 76 25 ff ff ff 7f 83 f8 01 0f 85 4f 18 00 00 e8 53 9e fe ff 85 c0 74 0d 80 3d c4 0b 9d 04 00 <0f> 84 34 14 00 00 e8 3d 9e fe ff 85 c0 74 0d 80 3d ad 0b 9d 04 00 RSP: 0018:ffffc9000245f630 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 0000000000000001 RCX: 1ffff9200048bece RDX: 1ffff9200048b000 RSI: 0000000000000001 RDI: ffff888019839c60 RBP: ffffc9000245f6f8 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817aec78 R11: 0000000000000001 R12: ffff8880b9d35640 R13: ffff888019839c40 R14: 0000000000035640 R15: ffffc90002458000 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5535 irqentry_exit+0x31/0x80 kernel/entry/common.c:426 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:647 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:19 [inline] RIP: 0010:kmem_cache_debug_flags mm/slab.h:233 [inline] RIP: 0010:fixup_red_left+0x3/0x20 mm/slub.c:133 Code: 89 48 c7 c7 a0 88 0b 8c 89 d5 e8 f8 81 30 02 85 c0 0f 85 80 e4 1d 07 48 83 c4 08 5b 5d 41 5c 41 5d c3 0f 1f 44 00 00 48 89 f0 <0f> 1f 44 00 00 c3 f6 47 09 04 74 07 8b 77 58 48 01 f0 c3 c3 66 0f RSP: 0018:ffffc9000245f7d0 EFLAGS: 00000287 RAX: ffff888020d4e000 RBX: 0000000000000000 RCX: ffffea0000835200 RDX: 0000000000000000 RSI: ffff888020d4e000 RDI: ffff888011041dc0 RBP: ffff888020d4e000 R08: 0000000000000800 R09: 000000000000002e R10: ffffffff81340f4a R11: 000000000000003f R12: ffff888011041dc0 R13: ffffffff81b94d45 R14: 0000000000000000 R15: 0000000000000000 nearest_obj include/linux/slub_def.h:174 [inline] ____kasan_slab_free mm/kasan/common.c:338 [inline] __kasan_slab_free+0xb7/0x130 mm/kasan/common.c:368 kasan_slab_free include/linux/kasan.h:212 [inline] slab_free_hook mm/slub.c:1582 [inline] slab_free_freelist_hook+0xdf/0x240 mm/slub.c:1607 slab_free mm/slub.c:3167 [inline] kfree+0xe5/0x7f0 mm/slub.c:4217 skb_free_head net/core/skbuff.c:651 [inline] skb_release_data+0x622/0x750 net/core/skbuff.c:672 skb_release_all net/core/skbuff.c:726 [inline] __kfree_skb net/core/skbuff.c:740 [inline] consume_skb net/core/skbuff.c:896 [inline] consume_skb+0xc2/0x160 net/core/skbuff.c:890 netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline] netlink_unicast+0x53b/0x7d0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1929 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2433 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae 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:00007f0ab7287188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffe9613ea8f R14: 00007f0ab7287300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 11657 Comm: syz-executor.1 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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:ffffc90000007a30 EFLAGS: 00000206 RAX: 0000000000000003 RBX: 0000000000000000 RCX: 1ffffffff19ac734 RDX: 0000000000000001 RSI: ffffffff817aec91 RDI: ffffffff8132b571 RBP: ffffffff8cd639a0 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817aec59 R11: 0000000000000080 R12: 0000000000007c8d R13: fffffbfff19ac734 R14: 0000000000000001 R15: ffff8880b9c36400 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056062a8f66d8 CR3: 0000000022bad000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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:unlock_page_memcg+0x0/0x2c0 mm/memcontrol.c:2037 Code: fa ff e9 e8 fb ff ff 0f 1f 00 b9 01 00 00 00 e9 96 fa ff ff 66 0f 1f 44 00 00 31 c9 e9 89 fa ff ff 66 0f 1f 84 00 00 00 00 00 <48> b8 00 00 00 00 00 fc ff df 41 54 55 48 89 fd 48 83 c7 08 48 89 RSP: 0018:ffffc900025e7778 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888079600000 RSI: ffffffff81add8d2 RDI: ffffea0001999f00 RBP: ffffea0001999f00 R08: 0000000000000000 R09: ffffea0001999f07 R10: ffffffff81addfd9 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880600c6800 R14: dffffc0000000000 R15: 00007f2b69b01000 zap_pte_range mm/memory.c:1270 [inline] zap_pmd_range mm/memory.c:1374 [inline] zap_pud_range mm/memory.c:1403 [inline] zap_p4d_range mm/memory.c:1424 [inline] unmap_page_range+0xe30/0x2650 mm/memory.c:1445 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:00007f2b672ba188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: 0000000000806000 RBX: 000000000056c038 RCX: 00000000004665d9 RDX: 0000000000806000 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffefaaa919f R14: 00007f2b672ba300 R15: 0000000000022000