rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-....: (1 GPs behind) idle=e1d/1/0x4000000000000000 softirq=21724/21725 fqs=2100 
	(detected by 1, t=10503 jiffies, g=29941, q=1148)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8971 Comm: syz.5.1581 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:mark_lock+0xe2/0x320 kernel/locking/lockdep.c:4569
Code: 03 42 0f b6 04 28 84 c0 0f 85 06 02 00 00 83 3d 23 f5 cf 14 00 74 36 45 31 ff 49 83 c7 50 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 <74> 08 4c 89 ff e8 e4 88 60 00 b8 01 00 00 00 45 85 27 74 50 48 83
RSP: 0018:ffffc90000006f80 EFLAGS: 00000046
RAX: 1ffffffff1f6bbf2 RBX: ffff888020309dc0 RCX: ffffffff815dca24
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901d50c0
RBP: 0000000000000009 R08: ffffffff901d50c7 R09: 1ffffffff203aa18
R10: dffffc0000000000 R11: fffffbfff203aa19 R12: 0000000000000200
R13: dffffc0000000000 R14: ffff88802030a978 R15: ffffffff8fb5df90
FS:  00007f5abef8d6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000f000 CR3: 000000005a40f000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff1 DR7: 0000000000000600
Call Trace:
 <IRQ>
 mark_usage kernel/locking/lockdep.c:4512 [inline]
 __lock_acquire+0xd69/0x7d10 kernel/locking/lockdep.c:4966
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
 rcu_lock_acquire+0x2a/0x30 include/linux/rcupdate.h:313
 rcu_read_lock include/linux/rcupdate.h:740 [inline]
 __perf_output_begin kernel/events/ring_buffer.c:163 [inline]
 perf_output_begin_forward+0xa5/0xa40 kernel/events/ring_buffer.c:271
 __perf_event_output kernel/events/core.c:7804 [inline]
 perf_event_output_forward+0x19b/0x2e0 kernel/events/core.c:7822
 __perf_event_overflow+0x364/0x530 kernel/events/core.c:9515
 perf_tp_event+0x383/0xbf0 kernel/events/core.c:10047
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10021
 perf_trace_preemptirq_template+0x2aa/0x360 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0x108/0x180 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x57/0x80 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:713
RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 kernel/rcu/tree_plugin.h:674
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 32 e1 9c 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007b00 EFLAGS: 00000206
RAX: 526f56b6dbbda900 RBX: 1ffff92000000f64 RCX: 526f56b6dbbda900
RDX: dffffc0000000000 RSI: ffffffff8a2b2800 RDI: ffffffff8a79fe00
RBP: ffffc90000007bd8 R08: ffffffff901d50f7 R09: 1ffffffff203aa1e
R10: dffffc0000000000 R11: fffffbfff203aa1f R12: ffffffff8c323000
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:422
 rcu_read_unlock include/linux/rcupdate.h:772 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x132/0x140 net/mac80211/util.c:831
 mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4f2/0xb70 kernel/time/hrtimer.c:1749
 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
 handle_softirqs+0x339/0x830 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:212 [inline]
RIP: 0010:trace_lock_release include/trace/events/lock.h:58 [inline]
RIP: 0010:lock_release+0x78/0x8a0 kernel/locking/lockdep.c:5634
Code: 8b 48 c7 44 24 70 00 93 5d 81 4c 8d 64 24 60 49 c1 ec 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4b 89 04 2c 43 c7 44 2c 08 f8 f3 f3 f3 <0f> 1f 44 00 00 65 8b 1d d4 81 a4 7e 83 fb 08 0f 83 4e 05 00 00 89
RSP: 0018:ffffc9000333ee20 EFLAGS: 00000a02
RAX: f2f2f2f8f1f1f1f1 RBX: 0000000000000001 RCX: ffff888020309dc0
RDX: 0000000000000000 RSI: ffffffff81aed2a5 RDI: ffffffff8c31eb20
RBP: ffffc9000333ef30 R08: ffffffff901d50f7 R09: 1ffffffff203aa1e
R10: dffffc0000000000 R11: fffffbfff203aa1f R12: 1ffff92000667dd0
R13: dffffc0000000000 R14: ffff888073fb8000 R15: 0000000000000200
 rcu_read_unlock include/linux/rcupdate.h:773 [inline]
 count_memcg_event_mm+0x324/0x370 include/linux/memcontrol.h:1082
 handle_mm_fault+0x134/0x4410 mm/memory.c:4863
 do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1355
 handle_page_fault arch/x86/mm/fault.c:1443 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1496
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
RIP: 0010:csum_partial_copy_generic+0x57/0x1e0 arch/x86/lib/csum-copy_64.S:74
Code: 00 00 40 f6 c6 07 0f 85 2a 01 00 00 41 89 cc 49 c1 ec 06 74 7b f8 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 1f 4c 8b 47 08 <4c> 8b 5f 10 48 8b 57 18 4c 8b 57 20 4c 8b 7f 28 4c 8b 77 30 4c 8b
RSP: 0018:ffffc9000333f358 EFLAGS: 00050206
RAX: 00000000ffffffff RBX: 0000000000000000 RCX: 0000000000000578
RDX: 0000000000000000 RSI: ffff888077ea7340 RDI: 000020000000eff0
RBP: 000020000000f2a8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000000000a
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 csum_and_copy_from_user+0xdf/0x120 arch/x86/lib/csum-wrappers_64.c:31
 csum_and_copy_from_iter+0x247/0x1120 lib/iov_iter.c:1705
 csum_and_copy_from_iter_full include/linux/uio.h:299 [inline]
 ping_getfrag+0x82/0x270 net/ipv4/ping.c:621
 __ip6_append_data+0x2ada/0x38c0 net/ipv6/ip6_output.c:1704
 ip6_append_data+0x1d4/0x310 net/ipv6/ip6_output.c:1837
 ping_v6_sendmsg+0xa95/0x1030 net/ipv6/ping.c:143
 sock_sendmsg_nosec net/socket.c:706 [inline]
 __sock_sendmsg net/socket.c:718 [inline]
 ____sys_sendmsg+0x5b7/0x8f0 net/socket.c:2445
 ___sys_sendmsg+0x236/0x2e0 net/socket.c:2499
 __sys_sendmsg net/socket.c:2528 [inline]
 __do_sys_sendmsg net/socket.c:2537 [inline]
 __se_sys_sendmsg+0x1af/0x290 net/socket.c:2535
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f5ac0d33e59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5abef8d028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f5ac0facfa0 RCX: 00007f5ac0d33e59
RDX: 0000000000000000 RSI: 0000200000000440 RDI: 0000000000000005
RBP: 00007f5ac0dc9d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5ac0fad038 R14: 00007f5ac0facfa0 R15: 00007ffc47d7ab58
 </TASK>