rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2636 jiffies s: 202713 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13825 Comm: syz.0.13540 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__perf_event_account_interrupt+0x47/0x280 kernel/events/core.c:9391
Code: dc ff 48 c7 c7 c0 b1 94 8a e8 05 04 8c 08 65 4c 8b 3d e5 f9 5d 7e 4c 8d a3 00 02 00 00 4c 89 e5 48 c1 ed 03 42 80 7c 2d 00 00 <74> 08 4c 89 e7 e8 ef 24 2e 00 4d 8b 2c 24 4c 89 ff 4c 89 ee e8 80
RSP: 0018:ffffc90000007488 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff8880227b6600 RCX: dc10f58ebd7bfc00
RDX: 0000000000000100 RSI: ffffffff8a94b1c0 RDI: ffffffff8adf6420
RBP: 1ffff110044f6d00 R08: ffff8880227b6a7b R09: 1ffff110044f6d4f
R10: dffffc0000000000 R11: ffffed10044f6d50 R12: ffff8880227b6800
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000035de9
FS:  00007fbd182026c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c256046 CR3: 0000000051c6f000 CR4: 00000000003506f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __perf_event_overflow+0x9d/0x630 kernel/events/core.c:9455
 perf_swevent_overflow kernel/events/core.c:9589 [inline]
 perf_swevent_event+0x315/0x570 kernel/events/core.c:9640
 perf_tp_event+0x36b/0xc10 kernel/events/core.c:10074
 perf_trace_run_bpf_submit+0xf3/0x1c0 kernel/events/core.c:10042
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
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 12 6c 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc90000007ac0 EFLAGS: 00000206
RAX: dc10f58ebd7bfc00 RBX: 1ffff92000000f60 RCX: dc10f58ebd7bfc00
RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: ffffffff8adf6420
RBP: ffffc90000007bc0 R08: ffffffff90b132ff R09: 1ffffffff216265f
R10: dffffc0000000000 R11: fffffbfff2162660 R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8e3bb00 R15: 0000000000000001
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ieee80211_rx_napi+0x23d/0x3c0 net/mac80211/rx.c:5341
 ieee80211_rx include/net/mac80211.h:4849 [inline]
 ieee80211_handle_queued_frames+0x104/0x1a0 net/mac80211/main.c:317
 tasklet_action_common+0x2d0/0x460 kernel/softirq.c:827
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_schedule_irq+0xb6/0x160 kernel/sched/core.c:6875
Code: 00 00 43 c6 44 37 04 f8 74 0b 0f 0b 48 f7 03 08 00 00 00 74 7f bf 01 00 00 00 e8 45 e2 1e f7 e8 b0 bf 4e f7 fb bf 01 00 00 00 <e8> 25 ba ff ff 43 c6 44 37 08 00 48 c7 44 24 40 00 00 00 00 9c 8f
RSP: 0018:ffffc90003ae73e0 EFLAGS: 00000282
RAX: dc10f58ebd7bfc00 RBX: 0000000000000000 RCX: dc10f58ebd7bfc00
RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: 0000000000000001
RBP: ffffc90003ae7480 R08: ffffffff90b132ff R09: 1ffffffff216265f
R10: dffffc0000000000 R11: fffffbfff2162660 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200075ce7c
 irqentry_exit+0x63/0x70 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:put_cpu_partial+0x1b0/0x250 mm/slub.c:2666
Code: 3b 44 24 18 0f 85 b4 00 00 00 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 4c 43 5e 08 f7 c5 00 02 00 00 74 c0 fb 4d 85 e4 <75> bf eb c8 e8 f7 d2 3f 02 85 c0 0f 84 e9 fe ff ff 83 3d 90 46 4e
RSP: 0018:ffffc90003ae7548 EFLAGS: 00000246
RAX: dc10f58ebd7bfc00 RBX: ffff888018a63500 RCX: dc10f58ebd7bfc00
RDX: dffffc0000000000 RSI: ffffffff8a8c18a0 RDI: ffffffff8adf6420
RBP: 0000000000000286 R08: ffffffff90b132ff R09: 1ffffffff216265f
R10: dffffc0000000000 R11: fffffbfff2162660 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8880622cbc00 R15: ffff8880b8e44620
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:306
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x4b/0x490 mm/slab.h:737
 slab_alloc_node mm/slub.c:3359 [inline]
 __kmem_cache_alloc_node+0x19d/0x270 mm/slub.c:3398
 kmalloc_trace+0x26/0xe0 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 tcp_sendmsg_fastopen+0x1d5/0x600 net/ipv4/tcp.c:1193
 tcp_sendmsg_locked+0x356b/0x39e0 net/ipv4/tcp.c:1259
 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1494
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5ed/0x9a0 net/socket.c:2519
 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2573
 __sys_sendmsg net/socket.c:2602 [inline]
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg+0x1c3/0x2b0 net/socket.c:2609
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbd1739e159
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:00007fbd18202028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fbd17626090 RCX: 00007fbd1739e159
RDX: 000000003000c085 RSI: 0000200000000080 RDI: 0000000000000004
RBP: 00007fbd17435024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fbd17626128 R14: 00007fbd17626090 R15: 00007ffc974e9268
 </TASK>