rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10495 ticks this GP) idle=4d54/1/0x4000000000000000 softirq=113886/113887 fqs=3920
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1448723          0            0
rcu: 	cputime:    15608      36871           62   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=163061 q=1741 ncpus=2)
CPU: 0 PID: 27849 Comm: syz.1.5876 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:rcu_read_unlock_special+0x83/0x470 kernel/rcu/tree_plugin.h:698
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 1e 0d 92 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:ffffc90000007220 EFLAGS: 00000206
RAX: 496cc536a62eca00 RBX: 1ffff92000000e48 RCX: 496cc536a62eca00
RDX: dffffc0000000000 RSI: ffffffff8acac900 RDI: ffffffff8b1c81e0
RBP: ffffc900000072e8 R08: ffffffff911bf58f R09: 1ffffffff2237eb1
R10: dffffc0000000000 R11: fffffbfff2237eb2 R12: ffffffff8d137200
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001
FS:  00007fb92300a6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000066fae000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __rcu_read_unlock+0x7c/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:818 [inline]
 is_bpf_text_address+0x27e/0x2a0 kernel/bpf/core.c:743
 kernel_text_address+0xa0/0xd0 kernel/extable.c:125
 __kernel_text_address+0xd/0x30 kernel/extable.c:79
 unwind_get_return_address+0x5d/0xc0 arch/x86/kernel/unwind_orc.c:369
 arch_stack_walk+0x11d/0x190 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:46 [inline]
 kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
 kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522
 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:237
 kasan_slab_free include/linux/kasan.h:164 [inline]
 slab_free_hook mm/slub.c:1811 [inline]
 slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837
 slab_free mm/slub.c:3830 [inline]
 kmem_cache_free+0xf8/0x270 mm/slub.c:3852
 inet_bind_bucket_destroy net/ipv4/inet_hashtables.c:92 [inline]
 __inet_put_port net/ipv4/inet_hashtables.c:198 [inline]
 inet_put_port+0x4aa/0x780 net/ipv4/inet_hashtables.c:216
 tcp_set_state+0x4d7/0x680 net/ipv4/tcp.c:2677
 tcp_done+0x107/0x330 net/ipv4/tcp.c:4591
 tcp_done_with_error+0x4b/0xc0 net/ipv4/tcp_input.c:4447
 tcp_write_err net/ipv4/tcp_timer.c:72 [inline]
 tcp_write_timeout net/ipv4/tcp_timer.c:281 [inline]
 tcp_retransmit_timer+0x1728/0x3020 net/ipv4/tcp_timer.c:576
 tcp_write_timer+0x12a/0x280 net/ipv4/tcp_timer.c:709
 call_timer_fn+0x189/0x540 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x542/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x67/0xf0 kernel/time/timer.c:2036
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 __do_softirq kernel/softirq.c:612 [inline]
 invoke_softirq kernel/softirq.c:452 [inline]
 __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
 sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__schedule+0x1563/0x45a0 kernel/sched/core.c:6706
Code: 20 00 74 08 4c 89 f7 e8 1b d1 52 f7 4d 89 3e 4c 89 ef 4c 89 fe e8 cd df 73 f6 48 89 c7 e8 35 f2 d0 f6 48 8b 84 24 90 00 00 00 <66> 42 c7 44 20 12 f8 f8 48 c7 84 24 00 01 00 00 0e 36 e0 45 4a c7
RSP: 0018:ffffc9000d5377c0 EFLAGS: 00000286
RAX: 1ffff92001aa6f18 RBX: ffff8880b8e3cd48 RCX: 496cc536a62eca00
RDX: dffffc0000000000 RSI: ffffffff8acac900 RDI: ffff8880768e15f8
RBP: ffffc9000d5379d0 R08: ffffffff911bf5ff R09: 1ffffffff2237ebf
R10: dffffc0000000000 R11: fffffbfff2237ec0 R12: dffffc0000000000
R13: ffff8880768e0000 R14: ffff8880b8e3c010 R15: ffff888042be3c00
 preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6867
 preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6891
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
 smp_call_function_single+0x48d/0x5a0 kernel/smp.c:652
 task_function_call kernel/events/core.c:120 [inline]
 perf_install_in_context+0x5be/0x920 kernel/events/core.c:2948
 __do_sys_perf_event_open kernel/events/core.c:12915 [inline]
 __se_sys_perf_event_open+0x1836/0x1c50 kernel/events/core.c:12567
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb92219bf79
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:00007fb92300a028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fb922415fa0 RCX: 00007fb92219bf79
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007fb9222327e0 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb922416038 R14: 00007fb922415fa0 R15: 00007ffec6368058
 </TASK>