bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5547/1:b..l rcu: (detected by 0, t=10502 jiffies, g=292537, q=2017 ncpus=2) task:syz.1.7732 state:R running task stack:26440 pid:5547 tgid:5546 ppid:32013 task_flags:0x400040 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5357 [inline] __schedule+0x1798/0x4cc0 kernel/sched/core.c:6961 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7288 irqentry_exit+0x6f/0x90 kernel/entry/common.c:197 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire+0x175/0x360 kernel/locking/lockdep.c:5872 Code: 00 00 00 00 9c 8f 44 24 30 f7 44 24 30 00 02 00 00 0f 85 cd 00 00 00 f7 44 24 08 00 02 00 00 74 01 fb 65 48 8b 05 7b 71 03 11 <48> 3b 44 24 58 0f 85 f2 00 00 00 48 83 c4 60 5b 41 5c 41 5d 41 5e RSP: 0018:ffffc9000eac74d0 EFLAGS: 00000206 RAX: 921db475c062a700 RBX: 0000000000000000 RCX: 921db475c062a700 RDX: 0000000000000000 RSI: ffffffff8dba996e RDI: ffffffff8be33f80 RBP: ffffffff822e4832 R08: 0000000000000000 R09: ffffffff822e4832 R10: dffffc0000000000 R11: fffff940002fe9f7 R12: 0000000000000002 R13: ffffffff8e13a0e0 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] page_ext_get+0x3e/0x2f0 mm/page_ext.c:527 __reset_page_owner+0x28/0x1f0 mm/page_owner.c:294 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1395 [inline] __free_frozen_pages+0xbc4/0xd30 mm/page_alloc.c:2895 discard_slab mm/slub.c:2758 [inline] __put_partials+0x156/0x1a0 mm/slub.c:3223 put_cpu_partial+0x17c/0x250 mm/slub.c:3298 __slab_free+0x2d5/0x3c0 mm/slub.c:4565 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:340 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4191 [inline] kmem_cache_alloc_bulk_noprof+0x4e0/0x790 mm/slub.c:5426 __io_alloc_req_refill+0x9d/0x280 io_uring/io_uring.c:1003 io_alloc_req io_uring/io_uring.h:453 [inline] io_alloc_notif+0x2a0/0x380 io_uring/notif.c:113 io_send_zc_prep+0x113/0xa10 io_uring/net.c:1349 io_init_req io_uring/io_uring.c:2197 [inline] io_submit_sqe io_uring/io_uring.c:2244 [inline] io_submit_sqes+0x914/0x1d30 io_uring/io_uring.c:2396 __do_sys_io_uring_enter io_uring/io_uring.c:3463 [inline] __se_sys_io_uring_enter+0x2df/0x2b20 io_uring/io_uring.c:3397 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f69ac98eec9 RSP: 002b:00007f69ad8d6038 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007f69acbe5fa0 RCX: 00007f69ac98eec9 RDX: 0000000000000000 RSI: 00000000000047bc RDI: 0000000000000003 RBP: 00007f69aca11f91 R08: 0000000000000000 R09: fffffffffffffd6b R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f69acbe6038 R14: 00007f69acbe5fa0 R15: 00007f69acd0fa28 bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:29:b4:67:f8:91, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:29:b4:67:f8:91, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) net_ratelimit: 14673 callbacks suppressed bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:29:b4:67:f8:91, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:29:b4:67:f8:91, vlan:0)