rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (10472 ticks this GP) idle=525/1/0x4000000000000000 softirq=90373/90379 fqs=4567
(t=10500 jiffies g=151141 q=937)
NMI backtrace for cpu 0
CPU: 0 PID: 5750 Comm: syz-executor.5 Not tainted 5.15.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
rcu_pending kernel/rcu/tree.c:3880 [inline]
rcu_sched_clock_irq.cold+0x9d/0x746 kernel/rcu/tree.c:2599
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1421
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:arch_stack_walk+0x71/0xe0 arch/x86/kernel/stacktrace.c:25
Code: 00 00 00 48 8d bd 78 ff ff ff 4c 89 ea 4c 89 f6 e8 94 b4 07 00 8b 95 78 ff ff ff 85 d2 75 21 eb 33 4c 89 e7 ff d3 84 c0 74 2a <48> 8d bd 78 ff ff ff e8 93 97 07 00 8b 85 78 ff ff ff 85 c0 74 14
RSP: 0018:ffffc90000007730 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff81639750 RCX: 0000000000000000
RDX: 1ffff92000000f10 RSI: ffffffff87188897 RDI: ffffc900000077f4
RBP: ffffc900000077b8 R08: ffffffff8e5d1254 R09: 0000000000000001
R10: fffff52000000ef1 R11: 0000000000086089 R12: ffffc900000077e8
R13: 0000000000000000 R14: ffff88801ff8a0c0 R15: 0000000000000200
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:434 [inline]
____kasan_kmalloc mm/kasan/common.c:513 [inline]
____kasan_kmalloc mm/kasan/common.c:472 [inline]
__kasan_kmalloc+0xa1/0xd0 mm/kasan/common.c:522
kasan_kmalloc include/linux/kasan.h:264 [inline]
kmem_cache_alloc_node_trace+0x20b/0x5d0 mm/slab.c:3619
__do_kmalloc_node mm/slab.c:3639 [inline]
__kmalloc_node_track_caller+0x38/0x60 mm/slab.c:3654
kmalloc_reserve net/core/skbuff.c:355 [inline]
__alloc_skb+0xde/0x340 net/core/skbuff.c:426
skb_copy+0x137/0x2f0 net/core/skbuff.c:1585
mac80211_hwsim_tx_frame_no_nl.isra.0+0xb17/0x1330 drivers/net/wireless/mac80211_hwsim.c:1565
mac80211_hwsim_tx_frame+0x1ee/0x2a0 drivers/net/wireless/mac80211_hwsim.c:1784
mac80211_hwsim_beacon_tx+0x49b/0x930 drivers/net/wireless/mac80211_hwsim.c:1838
__iterate_interfaces+0x1e5/0x520 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0x70/0x180 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xd5/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1861
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17b/0x360 kernel/time/hrtimer.c:1766
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:preempt_schedule_irq+0x49/0x90 kernel/sched/core.c:6687
Code: 55 53 65 48 8b 1c 25 40 f0 01 00 48 89 dd 48 c1 ed 03 48 01 c5 bf 01 00 00 00 e8 62 2b 18 f8 e8 1d bf 44 f8 fb bf 01 00 00 00 d2 cd ff ff 9c 58 fa f6 c4 02 75 27 bf 01 00 00 00 e8 60 1a 18
RSP: 0018:ffffc9000550f3e8 EFLAGS: 00000202
RAX: 00000000001727ef RBX: ffff88801ff8a0c0 RCX: 1ffffffff1adbd89
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffed1003ff1418 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817b6d38 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
irqentry_exit+0x31/0x80 kernel/entry/common.c:425
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__local_bh_enable_ip+0xa8/0x120 kernel/softirq.c:390
Code: 1d ad 59 bc 7e 65 8b 05 a6 59 bc 7e a9 00 ff ff 00 74 45 bf 01 00 00 00 e8 f5 31 09 00 e8 90 d6 35 00 fb 65 8b 05 88 59 bc 7e <85> c0 74 58 5b 5d c3 65 8b 05 d6 60 bc 7e 85 c0 75 a2 0f 0b eb 9e
RSP: 0018:ffffc9000550f4b0 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 00000000fffffe01 RCX: 1ffffffff1adbd89
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffffff879df1a3 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff817b6d38 R11: 0000000000000001 R12: 0000000000000000
R13: ffff888084da2188 R14: 0000000000000010 R15: 0000000000000000
local_bh_enable include/linux/bottom_half.h:32 [inline]
rcu_read_unlock_bh include/linux/rcupdate.h:757 [inline]
ip_finish_output2+0x861/0x2140 net/ipv4/ip_output.c:222
__ip_finish_output net/ipv4/ip_output.c:299 [inline]
__ip_finish_output+0x396/0x640 net/ipv4/ip_output.c:281
ip_finish_output+0x32/0x200 net/ipv4/ip_output.c:309
NF_HOOK_COND include/linux/netfilter.h:296 [inline]
ip_output+0x196/0x310 net/ipv4/ip_output.c:423
dst_output include/net/dst.h:450 [inline]
ip_local_out net/ipv4/ip_output.c:126 [inline]
ip_send_skb+0xd4/0x260 net/ipv4/ip_output.c:1555
udp_send_skb+0x6cd/0x11a0 net/ipv4/udp.c:966
udp_sendmsg+0x1bad/0x2740 net/ipv4/udp.c:1253
inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x331/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmmsg+0x195/0x470 net/socket.c:2549
__do_sys_sendmmsg net/socket.c:2578 [inline]
__se_sys_sendmmsg net/socket.c:2575 [inline]
__x64_sys_sendmmsg+0x99/0x100 net/socket.c:2575
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f597462b709
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:00007f5971ba2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f597472ff60 RCX: 00007f597462b709
RDX: 0400000000000070 RSI: 0000000020007fc0 RDI: 0000000000000004
RBP: 00007f5974685cb4 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000000c R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcac5103cf R14: 00007f5971ba2300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 48 8d add %cl,-0x73(%rax)
5: bd 78 ff ff ff mov $0xffffff78,%ebp
a: 4c 89 ea mov %r13,%rdx
d: 4c 89 f6 mov %r14,%rsi
10: e8 94 b4 07 00 callq 0x7b4a9
15: 8b 95 78 ff ff ff mov -0x88(%rbp),%edx
1b: 85 d2 test %edx,%edx
1d: 75 21 jne 0x40
1f: eb 33 jmp 0x54
21: 4c 89 e7 mov %r12,%rdi
24: ff d3 callq *%rbx
26: 84 c0 test %al,%al
28: 74 2a je 0x54
* 2a: 48 8d bd 78 ff ff ff lea -0x88(%rbp),%rdi <-- trapping instruction
31: e8 93 97 07 00 callq 0x797c9
36: 8b 85 78 ff ff ff mov -0x88(%rbp),%eax
3c: 85 c0 test %eax,%eax
3e: 74 14 je 0x54