bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P6817/1:b..l P6860/1:b..l P6884/3:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=251289, q=299 ncpus=2)
task:modprobe        state:R  running task     stack:24376 pid:6884  tgid:6884  ppid:1174   task_flags:0x400000 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x17b4/0x5680 kernel/sched/core.c:7188
 preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7369
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:190
 spin_unlock include/linux/spinlock.h:390 [inline]
 filemap_map_pages+0x1a2a/0x2100 mm/filemap.c:3942
 do_fault_around mm/memory.c:5851 [inline]
 do_read_fault mm/memory.c:5884 [inline]
 do_fault mm/memory.c:6027 [inline]
 do_pte_missing+0x1f38/0x33f0 mm/memory.c:4550
 handle_pte_fault mm/memory.c:6411 [inline]
 __handle_mm_fault mm/memory.c:6549 [inline]
 handle_mm_fault+0x1bd7/0x3170 mm/memory.c:6718
 do_user_addr_fault+0xa73/0x1340 arch/x86/mm/fault.c:1334
 handle_page_fault arch/x86/mm/fault.c:1474 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1527
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7f69b20903a0
RSP: 002b:00007ffe0f142ea8 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffe0f142eb0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
task:syz.0.8690      state:R  running task     stack:25592 pid:6860  tgid:6860  ppid:27936  task_flags:0x40004c flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x17b4/0x5680 kernel/sched/core.c:7188
 preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7369
 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
 __raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:190
 spin_unlock include/linux/spinlock.h:390 [inline]
 zap_pte_range mm/memory.c:1948 [inline]
 zap_pmd_range mm/memory.c:2004 [inline]
 zap_pud_range mm/memory.c:2032 [inline]
 zap_p4d_range mm/memory.c:2053 [inline]
 __zap_vma_range+0x3d17/0x4b40 mm/memory.c:2093
 unmap_vmas+0x379/0x530 mm/memory.c:2162
 exit_mmap+0x280/0x9e0 mm/mmap.c:1300
 __mmput+0x118/0x430 kernel/fork.c:1178
 exit_mm+0x18e/0x250 kernel/exit.c:581
 do_exit+0x6a2/0x22c0 kernel/exit.c:963
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117
 __do_sys_exit_group kernel/exit.c:1128 [inline]
 __se_sys_exit_group kernel/exit.c:1126 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1126
 x64_sys_call+0x221a/0x2240 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f421e59cdd9
RSP: 002b:00007fff79ff14a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f421e59cdd9
RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fff79ff150c R08: 0000000000000000 R09: 00000000000927c0
R10: 0000000000000001 R11: 0000000000000246 R12: 000000000000024c
R13: 00000000000927c0 R14: 000000000015a6f4 R15: 00007fff79ff1560
 </TASK>
task:syz.2.8678      state:R  running task     stack:25976 pid:6817  tgid:6814  ppid:29984  task_flags:0x40054c flags:0x00080001
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x17b4/0x5680 kernel/sched/core.c:7188
 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7512
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:547 [inline]
 irqentry_exit+0x14f/0x730 kernel/entry/common.c:164
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x221/0x350 kernel/locking/lockdep.c:5872
Code: ff ff ff e8 a1 17 17 0a f7 44 24 08 00 02 00 00 0f 84 3a ff ff ff 65 48 8b 05 8b 02 9f 11 48 3b 44 24 58 75 33 fb 48 83 c4 60 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d d8 11 95
RSP: 0018:ffffc90003e3f810 EFLAGS: 00000282
RAX: 41a8006776a78000 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 00000000813a04aa RSI: ffffffff8e24f3ee RDI: ffffffff8c289f60
RBP: ffffffff8238b77e R08: ffffffff8238b77e R09: ffffffff8e95cce0
R10: dffffc0000000000 R11: ffffed10170c8209 R12: 0000000000000002
R13: ffffffff8e95cce0 R14: 0000000000000000 R15: 0000000000000246
 rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
 rcu_read_lock include/linux/rcupdate.h:838 [inline]
 lruvec_stat_mod_folio+0x8a/0x3e0 mm/memcontrol.c:974
 mod_lruvec_page_state include/linux/vmstat.h:528 [inline]
 vfree+0x1c0/0x2f0 mm/vmalloc.c:3471
 xskq_destroy+0x40/0x60 net/xdp/xsk_queue.c:64
 xsk_release+0x709/0x9c0 net/xdp/xsk.c:1326
 __sock_release net/socket.c:722 [inline]
 sock_close+0xc3/0x240 net/socket.c:1514
 __fput+0x44f/0xa60 fs/file_table.c:510
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x70f/0x22c0 kernel/exit.c:975
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117
 get_signal+0x1284/0x1330 kernel/signal.c:3037
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa54ef9cdd9
RSP: 002b:00007fa54fe58028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007fa54f216180 RCX: 00007fa54ef9cdd9
RDX: 0000200000000200 RSI: 0000000000008946 RDI: 0000000000000005
RBP: 00007fa54f032d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa54f216218 R14: 00007fa54f216180 R15: 00007fffe9df3a28
 </TASK>
rcu: rcu_preempt kthread starved for 819 jiffies! g251289 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:27736 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5387 [inline]
 __schedule+0x17b4/0x5680 kernel/sched/core.c:7188
 __schedule_loop kernel/sched/core.c:7267 [inline]
 schedule+0x164/0x360 kernel/sched/core.c:7282
 schedule_timeout+0x158/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x312/0x11d0 kernel/rcu/tree.c:2095
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6879 Comm: syz.4.8695 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:114 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:128 [inline]
RIP: 0010:get_random_u32+0xb5/0x8b0 drivers/char/random.c:541
Code: f3 f3 e8 4e 2a 7e fc 4c 89 7c 24 28 43 c6 44 2f 10 04 c7 84 24 c0 00 00 00 00 00 00 00 0f 1f 44 00 00 e8 2e 2a 7e fc 9c 41 5f <fa> 4c 89 fe 48 81 e6 00 02 00 00 31 ff e8 f9 2e 7e fc 49 81 e7 00
RSP: 0018:ffffc90000a08ac0 EFLAGS: 00000246
RAX: ffffffff8547a6c2 RBX: ffffc90000a08b20 RCX: ffff888053319ec0
RDX: 0000000000000100 RSI: 00000000000000c8 RDI: 0000000000000014
RBP: ffffc90000a08be8 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000141174 R12: f8f8f8f8f1f1f1f1
R13: dffffc0000000000 R14: ffffc90000a08b80 R15: 0000000000000246
FS:  000055556876f500(0000) GS:ffff888125313000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f00baf7f2fe CR3: 0000000077236000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __get_random_u32_below+0x14/0x90 drivers/char/random.c:555
 get_random_u32_below include/linux/random.h:63 [inline]
 mrp_join_timer_arm net/802/mrp.c:596 [inline]
 mrp_join_timer+0x5b0/0x7f0 net/802/mrp.c:612
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1799 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x652/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
 handle_softirqs+0x22a/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210
Code: 89 fb e8 23 00 00 00 48 8b 3d 24 ef 63 0c 48 89 de 5b e9 63 ea 5f 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0d 08 ff 7a 11 65 8b 15 29 ff 7a
RSP: 0018:ffffc90003647ae0 EFLAGS: 00000286
RAX: ffffffff818acb55 RBX: 0000000080000000 RCX: 0000000000000000
RDX: ffff888053319ec0 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90003647c30 R08: ffffffff818746d8 R09: ffffffff8e99c650
R10: dffffc0000000000 R11: fffff520006c8f45 R12: dffffc0000000000
R13: 0000000000000009 R14: dffffc0000000000 R15: 0000000000000003
 percpu_up_read include/linux/percpu-rwsem.h:134 [inline]
 cgroup_threadgroup_change_end+0x142/0x240 include/linux/cgroup-defs.h:901
 do_exit+0x3a8/0x22c0 kernel/exit.c:917
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117
 get_signal+0x1284/0x1330 kernel/signal.c:3037
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f290e99cdd9
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:00007fff3f5e2d28 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffff92 RBX: 000000000015f2a0 RCX: 00007f290e99cdd9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f290ec1618c
RBP: 0000000000000032 R08: 3fffffffffffffff R09: 0000000000000000
R10: 00007fff3f5e2e30 R11: 0000000000000246 R12: 00007fff3f5e2e50
R13: 00007f290ec1618c R14: 000000000015f2d2 R15: 00007fff3f5e2e30
 </TASK>
net_ratelimit: 715 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
net_ratelimit: 1505 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fe:87:17:a9:c1:26, vlan:0)