watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [syz-executor.3:13048] Modules linked in: irq event stamp: 3140756 hardirqs last enabled at (3140755): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (3140756): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (177644): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (157489): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (157489): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 13048 Comm: syz-executor.3 Not tainted 4.19.181-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:207 [inline] RIP: 0010:trylock_clear_pending kernel/locking/qspinlock_paravirt.h:123 [inline] RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:436 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x3b5/0xae0 kernel/locking/qspinlock.c:474 Code: 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 85 75 05 00 00 0f b6 45 00 84 c0 75 db be 02 RSP: 0018:ffff8880601ef910 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff1404184 RDX: 0000000000000001 RSI: ffffffff81678335 RDI: 0000000000000286 RBP: ffffffff8a020c20 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 000000000000663d R13: fffffbfff1404184 R14: 0000000000000001 R15: ffff8880ba02bd80 FS: 00007f0f27580700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b474b92188 CR3: 00000000abb63000 CR4: 00000000001426f0 DR0: 0000000000000101 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000000006a5 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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] free_huge_page+0x482/0xd20 mm/hugetlb.c:1294 __put_page+0xe2/0x3a0 mm/swap.c:112 put_page include/linux/mm.h:963 [inline] gather_surplus_pages mm/hugetlb.c:1832 [inline] hugetlb_acct_memory+0x77f/0xba0 mm/hugetlb.c:3153 hugetlb_reserve_pages+0x47f/0x650 mm/hugetlb.c:4581 hugetlbfs_file_mmap+0x2e4/0x4a0 fs/hugetlbfs/inode.c:164 call_mmap include/linux/fs.h:1826 [inline] mmap_region+0xc94/0x16b0 mm/mmap.c:1757 do_mmap+0x8e8/0x1080 mm/mmap.c:1530 do_mmap_pgoff include/linux/mm.h:2326 [inline] vm_mmap_pgoff+0x197/0x200 mm/util.c:357 ksys_mmap_pgoff+0x298/0x5a0 mm/mmap.c:1580 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465f69 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:00007f0f27580188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69 RDX: 0000000002000006 RSI: 0000000000400017 RDI: 0000000020200000 RBP: 00000000004bfa8f R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000002012 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffeaa73b6ef R14: 00007f0f27580300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 13055 Comm: syz-executor.2 Not tainted 4.19.181-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:trace_lock_release include/trace/events/lock.h:58 [inline] RIP: 0010:lock_release+0x172/0x8b0 kernel/locking/lockdep.c:3925 Code: 00 c7 83 84 08 00 00 01 00 00 00 0f 1f 44 00 00 65 8b 05 e1 56 b6 7e 83 f8 07 0f 87 89 04 00 00 89 c0 48 0f a3 05 76 9b db 09 <0f> 82 38 04 00 00 48 c7 c0 e0 d1 45 8a 48 ba 00 00 00 00 00 fc ff RSP: 0018:ffff8880ba106fd0 EFLAGS: 00000097 RAX: 0000000000000001 RBX: ffff8880968f2500 RCX: ffffffff8179497b RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880968f2d84 RBP: ffffffff89f85e60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff8c65e05b R12: 1ffff11017420dfd R13: ffffffff817948fa R14: 00000000ffffffe4 R15: ffff8880ba1070a0 FS: 00007f87578dd700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbf859f6718 CR3: 000000005d457000 CR4: 00000000001426e0 DR0: 0000000000000101 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000000006a5 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_release include/linux/rcupdate.h:247 [inline] rcu_read_unlock include/linux/rcupdate.h:681 [inline] __perf_event_output kernel/events/core.c:6602 [inline] perf_event_output_forward+0x191/0x270 kernel/events/core.c:6610 __perf_event_overflow+0x13c/0x370 kernel/events/core.c:7883 perf_swevent_hrtimer+0x272/0x3e0 kernel/events/core.c:9237 __run_hrtimer kernel/time/hrtimer.c:1419 [inline] __hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1481 hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1539 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:unwind_next_frame+0x425/0x1400 arch/x86/kernel/unwind_orc.c:427 Code: f9 4c 89 c7 e8 3c f2 ff ff 48 85 c0 49 89 c7 74 6a 4d 8d 47 04 48 b8 00 00 00 00 00 fc ff df 4c 89 c2 48 c1 ea 03 0f b6 04 02 <4c> 89 c2 83 e2 07 38 d0 7f 08 84 c0 0f 85 23 0c 00 00 41 0f b6 47 RSP: 0018:ffff8880ba107708 EFLAGS: 00000a07 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 1ffff11017420eea RCX: ffffffff81391db8 RDX: 1ffffffff1721d7e RSI: ffffffff8b90ebc6 RDI: ffffffff8b33156c RBP: 0000000000000002 R08: ffffffff8b90ebf4 R09: ffffffff8b90ebc6 R10: ffff8880ba107897 R11: 0000000000074071 R12: ffff8880ba107880 R13: ffff8880ba10786d R14: ffff8880ba107838 R15: ffffffff8b90ebf0 __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 kmem_cache_alloc_node_trace+0x151/0x3b0 mm/slab.c:3668 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3703 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0xae/0x560 net/core/skbuff.c:205 __netdev_alloc_skb+0x76/0x460 net/core/skbuff.c:407 netdev_alloc_skb include/linux/skbuff.h:2680 [inline] dev_alloc_skb include/linux/skbuff.h:2693 [inline] __ieee80211_beacon_get+0xc7d/0x1a30 net/mac80211/tx.c:4332 ieee80211_beacon_get_tim+0x88/0x890 net/mac80211/tx.c:4443 ieee80211_beacon_get include/net/mac80211.h:4484 [inline] mac80211_hwsim_beacon_tx+0xff/0x680 drivers/net/wireless/mac80211_hwsim.c:1577 __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:535 [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: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 ac d7 da 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 6b 92 e9 f8 eb c0 0f 0b 0f 0b 48 c7 c7 48 RSP: 0018:ffff8880578a78b0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3049 RBX: 0000000000000286 RCX: 1ffff11012d1e5bf RDX: dffffc0000000000 RSI: ffff8880968f2dd8 RDI: 0000000000000286 RBP: ffffffff8d3b3f88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000200 R13: ffff88804ac00000 R14: 0000000000000002 R15: dffffc0000000000 __debug_check_no_obj_freed lib/debugobjects.c:798 [inline] debug_check_no_obj_freed+0x201/0x490 lib/debugobjects.c:817 free_pages_prepare mm/page_alloc.c:1056 [inline] __free_pages_ok+0x22d/0xd30 mm/page_alloc.c:1279 update_and_free_page+0x839/0xb70 mm/hugetlb.c:1195 free_huge_page+0x877/0xd20 mm/hugetlb.c:1308 __put_page+0xe2/0x3a0 mm/swap.c:112 put_page include/linux/mm.h:963 [inline] gather_surplus_pages mm/hugetlb.c:1832 [inline] hugetlb_acct_memory+0x77f/0xba0 mm/hugetlb.c:3153 hugetlb_reserve_pages+0x47f/0x650 mm/hugetlb.c:4581 hugetlbfs_file_mmap+0x2e4/0x4a0 fs/hugetlbfs/inode.c:164 call_mmap include/linux/fs.h:1826 [inline] mmap_region+0xc94/0x16b0 mm/mmap.c:1757 do_mmap+0x8e8/0x1080 mm/mmap.c:1530 do_mmap_pgoff include/linux/mm.h:2326 [inline] vm_mmap_pgoff+0x197/0x200 mm/util.c:357 ksys_mmap_pgoff+0x298/0x5a0 mm/mmap.c:1580 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465f69 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:00007f87578dd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69 RDX: 0000000002000006 RSI: 0000000000400017 RDI: 0000000020200000 RBP: 00000000004bfa8f R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000002012 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffe5d03ae3f R14: 00007f87578dd300 R15: 0000000000022000