rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10487 ticks this GP) idle=c76/1/0x4000000000000000 softirq=9982/9986 fqs=2507
(t=10502 jiffies g=9273 q=125)
NMI backtrace for cpu 0
CPU: 0 PID: 8792 Comm: syz-executor406 Not tainted 5.10.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x107/0x163 lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x1e3/0x21e kernel/rcu/tree_stall.h:331
print_cpu_stall kernel/rcu/tree_stall.h:563 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:637 [inline]
rcu_pending kernel/rcu/tree.c:3694 [inline]
rcu_sched_clock_irq.cold+0x472/0xee8 kernel/rcu/tree.c:2567
update_process_times+0x77/0xd0 kernel/time/timer.c:1709
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:176
tick_sched_timer+0x1d1/0x2a0 kernel/time/tick-sched.c:1328
__run_hrtimer kernel/time/hrtimer.c:1519 [inline]
__hrtimer_run_queues+0x1ce/0xea0 kernel/time/hrtimer.c:1583
hrtimer_interrupt+0x334/0x940 kernel/time/hrtimer.c:1645
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1080 [inline]
__sysvec_apic_timer_interrupt+0x146/0x540 arch/x86/kernel/apic/apic.c:1097
run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline]
sysvec_apic_timer_interrupt+0x48/0x100 arch/x86/kernel/apic/apic.c:1091
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:unwind_next_frame+0x929/0x1f90 arch/x86/kernel/unwind_orc.c:466
Code: df 48 89 fe 48 c1 ee 03 80 3c 16 00 0f 85 5c 0f 00 00 48 8b 40 38 48 89 44 24 60 e9 a9 fd ff ff 48 b8 00 00 00 00 00 fc ff df <48> 8b 14 24 48 c1 ea 03 80 3c 02 00 0f 85 98 13 00 00 4c 89 c0 49
RSP: 0018:ffffc90000007620 EFLAGS: 00000297
RAX: dffffc0000000000 RBX: 1ffff92000000ecc RCX: ffffffff8d62d5cb
RDX: 0000000000000005 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 0000000000000002 R08: ffffffff8d62d5c6 R09: ffffffff8d62d5ca
R10: 0000000000082081 R11: 000000000000c5ff R12: ffffc90000007790
R13: ffffc9000000777d R14: ffffc90000007798 R15: ffffc90000007748
__unwind_start+0x51b/0x800 arch/x86/kernel/unwind_orc.c:696
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:48
kasan_set_track mm/kasan/common.c:56 [inline]
__kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:461
slab_post_alloc_hook mm/slab.h:535 [inline]
slab_alloc_node mm/slub.c:2891 [inline]
kmem_cache_alloc_node+0x1e0/0x470 mm/slub.c:2927
__alloc_skb+0x71/0x550 net/core/skbuff.c:198
skb_copy+0x137/0x2f0 net/core/skbuff.c:1507
mac80211_hwsim_tx_frame_no_nl.isra.0+0xb17/0x1330 drivers/net/wireless/mac80211_hwsim.c:1493
mac80211_hwsim_tx_frame+0x14f/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1705
mac80211_hwsim_beacon_tx+0x4ba/0x910 drivers/net/wireless/mac80211_hwsim.c:1759
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:792
ieee80211_iterate_active_interfaces_atomic+0x8d/0x170 net/mac80211/util.c:828
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1782
__run_hrtimer kernel/time/hrtimer.c:1519 [inline]
__hrtimer_run_queues+0x693/0xea0 kernel/time/hrtimer.c:1583
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1600
__do_softirq+0x2a0/0x9f6 kernel/softirq.c:298
asm_call_irq_on_stack+0xf/0x20
__run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
invoke_softirq kernel/softirq.c:393 [inline]
__irq_exit_rcu kernel/softirq.c:423 [inline]
irq_exit_rcu+0x132/0x200 kernel/softirq.c:435
sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1091
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:preempt_schedule_irq+0x49/0x90 kernel/sched/core.c:4789
Code: 55 53 65 48 8b 1c 25 00 f0 01 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 82 3a 64 f8 e8 ad a0 8e f8 fb bf 01 00 00 00 82 d1 ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 f0 22 64
RSP: 0018:ffffc90002197b78 EFLAGS: 00000202
RAX: 000000000011e651 RBX: ffff888016c11a40 RCX: 1ffffffff19d8e91
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffed1002d82348 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
irqentry_exit_cond_resched kernel/entry/common.c:357 [inline]
irqentry_exit_cond_resched kernel/entry/common.c:349 [inline]
irqentry_exit+0x7a/0xa0 kernel/entry/common.c:387
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631
RIP: 0010:vm_area_free+0x1/0x20 kernel/fork.c:373
Code: 95 4f 71 00 e9 98 f9 ff ff e8 eb 4f 71 00 e9 cb f9 ff ff e8 81 4f 71 00 e9 ff f9 ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 <48> 89 fd e8 27 d2 2f 00 48 89 ee 48 8b 3d 4d ff 08 0d 5d e9 67 08
RSP: 0018:ffffc90002197c40 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff19d9c03
RDX: ffff888016c11a40 RSI: ffffffff81a379aa RDI: ffff8880130d9948
RBP: ffff8880130d9948 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888014d20948 R14: 000000000000102e R15: ffff88802af22880
remove_vma+0x132/0x170 mm/mmap.c:184
exit_mmap+0x351/0x530 mm/mmap.c:3231
__mmput+0x122/0x470 kernel/fork.c:1079
mmput+0x53/0x60 kernel/fork.c:1100
exit_mm kernel/exit.c:486 [inline]
do_exit+0xa72/0x29b0 kernel/exit.c:796
do_group_exit+0x125/0x310 kernel/exit.c:906
__do_sys_exit_group kernel/exit.c:917 [inline]
__se_sys_exit_group kernel/exit.c:915 [inline]
__x64_sys_exit_group+0x3a/0x50 kernel/exit.c:915
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x4415f8
Code: Unable to access opcode bytes at RIP 0x4415ce.
RSP: 002b:00007ffdd12c2708 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004415f8
RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000
RBP: 00000000004c6b70 R08: 00000000000000e7 R09: ffffffffffffffd0
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000006dffa0 R14: 00000000006d4440 R15: 0000000000000004