bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	1-...!: (1 GPs behind) idle=1164/1/0x4000000000000000 softirq=57018/57034 fqs=1
rcu: 	(detected by 0, t=10502 jiffies, g=45877, q=453 ncpus=2)
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 14639 Comm: syz.1.3468 Not tainted 6.14.0-rc1-syzkaller-00235-g9946eaf552b1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__kasan_check_read+0xa/0x20 mm/kasan/shadow.c:31
Code: c7 c7 80 c6 7f 8d 5b 5d 41 5c e9 21 3d 7c ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 89 f6 <31> d2 e9 7f f0 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00
RSP: 0018:ffffc90000a18df8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff8880b872c780 RCX: ffffffff81a70668
RDX: ffff888062498000 RSI: 0000000000000008 RDI: ffffffff90623610
RBP: ffff88806f212340 R08: 0000000000000005 R09: 0000000000000007
R10: 0000000000000001 R11: 0000000000000003 R12: 0000000000000001
R13: 0000000000000000 R14: ffff8880b872c680 R15: ffffffff896a13c0
FS:  00007f31575ac6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f53199d4f98 CR3: 00000000359b0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 cpumask_test_cpu include/linux/cpumask.h:570 [inline]
 cpu_online include/linux/cpumask.h:1116 [inline]
 trace_hrtimer_start include/trace/events/timer.h:222 [inline]
 debug_activate kernel/time/hrtimer.c:497 [inline]
 enqueue_hrtimer+0x78/0x3c0 kernel/time/hrtimer.c:1100
 __run_hrtimer kernel/time/hrtimer.c:1818 [inline]
 __hrtimer_run_queues+0x903/0xae0 kernel/time/hrtimer.c:1865
 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1927
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 8b 74 24 08 48 89 fb 48 83 c7 18 e8 8a a8 3d f6 48 89 df e8 e2 27 3e f6 e8 0d 94 68 f6 fb bf 01 00 00 00 <e8> a2 fe 2e f6 65 8b 05 13 e4 aa 74 85 c0 74 06 5b c3 cc cc cc cc
RSP: 0018:ffffc900103278c8 EFLAGS: 00000202
RAX: 000000000000acbf RBX: ffff88806f7eb828 RCX: 1ffffffff2de5d28
RDX: 0000000000000000 RSI: ffffffff8b6ced20 RDI: 0000000000000001
RBP: ffff88807a4e4600 R08: 0000000000000001 R09: fffffbfff2dd7bbc
R10: ffffffff96ebdde7 R11: 0000000000000002 R12: ffff88806f7eb828
R13: ffff88807183b2c8 R14: ffff88807a4e4630 R15: ffff88807a4e4608
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 io_poll_remove_entry io_uring/poll.c:149 [inline]
 io_poll_remove_entries.part.0+0x271/0x7e0 io_uring/poll.c:179
 io_poll_remove_entries io_uring/poll.c:589 [inline]
 __io_arm_poll_handler+0xdbd/0x1430 io_uring/poll.c:603
 io_arm_poll_handler+0x69d/0xc40 io_uring/poll.c:707
 io_queue_async+0xaa/0x420 io_uring/io_uring.c:1925
 io_queue_sqe io_uring/io_uring.c:1954 [inline]
 io_req_task_submit+0x1c8/0x1f0 io_uring/io_uring.c:1373
 io_handle_tw_list+0x4c3/0x540 io_uring/io_uring.c:1059
 tctx_task_work_run+0xac/0x390 io_uring/io_uring.c:1123
 tctx_task_work+0x7b/0xd0 io_uring/io_uring.c:1141
 task_work_run+0x14e/0x250 kernel/task_work.c:227
 get_signal+0x1d3/0x26c0 kernel/signal.c:2809
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f315678cde9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f31575ac038 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa
RAX: 0000000000000200 RBX: 00007f31569a5fa0 RCX: 00007f315678cde9
RDX: 0000000000000000 RSI: 0000000000003516 RDI: 0000000000000004
RBP: 00007f315680e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f31569a5fa0 R15: 00007ffff6c11708
 </TASK>
rcu: rcu_preempt kthread starved for 10500 jiffies! g45877 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:28344 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0xf43/0x5890 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6856
 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2024
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2226
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 5815 Comm: syz-executor Not tainted 6.14.0-rc1-syzkaller-00235-g9946eaf552b1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline]
RIP: 0010:smp_call_function_many_cond+0x4e3/0x12c0 kernel/smp.c:885
Code: 49 01 c4 83 c5 03 e8 fc 04 0c 00 f3 90 41 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 e8 0b 00 00 8b 43 08 31 ff 83 e0 01 41 89 c5 <89> c6 e8 d6 ff 0b 00 45 85 ed 75 d0 e8 cc 04 0c 00 e8 c7 04 0c 00
RSP: 0018:ffffc9000402f938 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff8880b8744a80 RCX: ffffffff81adcf0a
RDX: ffff888020f0a440 RSI: ffffffff81adcee4 RDI: 0000000000000000
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed10170e8951
R13: 0000000000000001 R14: ffff8880b863fe80 R15: ffff8880b8744a88
FS:  000055557759f500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ed1dff8 CR3: 0000000030f72000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1052
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:966 [inline]
 flush_tlb_mm_range+0x271/0x4a0 arch/x86/mm/tlb.c:1054
 dup_mmap kernel/fork.c:787 [inline]
 dup_mm kernel/fork.c:1700 [inline]
 copy_mm kernel/fork.c:1752 [inline]
 copy_process+0x70fb/0x8c50 kernel/fork.c:2403
 kernel_clone+0xfd/0x960 kernel/fork.c:2815
 __do_sys_clone+0xba/0x100 kernel/fork.c:2958
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff065383653
Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00
RSP: 002b:00007ffec9a49b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff065383653
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 000055557759f7d0 R11: 0000000000000246 R12: 0000000000000000
R13: 00000000000927c0 R14: 000000000003ffcd R15: 00007ffec9a49d00
 </TASK>