bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P7395/1:b..l rcu: (detected by 0, t=10503 jiffies, g=26049, q=2336 ncpus=2) task:syz.3.357 state:R running task stack:26752 pid:7395 tgid:7392 ppid:5845 task_flags:0x400040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5295 [inline] __schedule+0x1585/0x5340 kernel/sched/core.c:6907 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7234 irqentry_exit+0x599/0x620 kernel/entry/common.c:239 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_release+0x2d7/0x3d0 kernel/locking/lockdep.c:5893 Code: b0 79 11 00 00 00 00 eb b5 e8 65 2d 0a 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 e5 6a 79 11 48 3b 44 24 28 75 44 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 ca 13 0d 0a cc 48 8d 3d 52 fe 72 RSP: 0018:ffffc9000d1bf1a0 EFLAGS: 00000286 RAX: c37327c87eecb100 RBX: 0000000000000202 RCX: 0000000000000046 RDX: 0000000000000001 RSI: ffffffff8e15c5bc RDI: ffffffff8c279800 RBP: ffff88807ee58b40 R08: ffffc9000d1bff38 R09: 0000000000000000 R10: ffffc9000d1bf2f8 R11: fffff52001a37e61 R12: 0000000000000001 R13: 0000000000000001 R14: ffffffff8e7603e0 R15: ffff88807ee58000 rcu_lock_release include/linux/rcupdate.h:322 [inline] rcu_read_unlock include/linux/rcupdate.h:881 [inline] class_rcu_destructor include/linux/rcupdate.h:1193 [inline] unwind_next_frame+0x1aaa/0x23c0 arch/x86/kernel/unwind_orc.c:695 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __set_page_owner+0x8d/0x4c0 mm/page_owner.c:341 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x231/0x280 mm/page_alloc.c:1888 prep_new_page mm/page_alloc.c:1896 [inline] get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3961 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5249 alloc_slab_page mm/slub.c:3238 [inline] allocate_slab+0x77/0x660 mm/slub.c:3411 new_slab mm/slub.c:3469 [inline] refill_objects+0x331/0x3c0 mm/slub.c:7091 __kmem_cache_alloc_bulk+0x3c/0x1a0 mm/slub.c:7128 kmem_cache_alloc_bulk_noprof+0x4d3/0x7e0 mm/slub.c:7180 __io_alloc_req_refill+0xb4/0x360 io_uring/io_uring.c:965 io_alloc_req io_uring/io_uring.h:508 [inline] io_submit_sqes+0xfb2/0x2370 io_uring/io_uring.c:2032 __do_sys_io_uring_enter io_uring/io_uring.c:2603 [inline] __se_sys_io_uring_enter+0x2cc/0x18c0 io_uring/io_uring.c:2538 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdbc7d9bf79 RSP: 002b:00007fdbc8ca8028 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007fdbc8016090 RCX: 00007fdbc7d9bf79 RDX: 0000000000000004 RSI: 00000000000066ab RDI: 0000000000000008 RBP: 00007fdbc7e327e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fdbc8016128 R14: 00007fdbc8016090 R15: 00007fdbc813fa48 net_ratelimit: 14886 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:16:77:c7:df:9f, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:16:77:c7:df:9f, vlan:1) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:1)