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): P5921/1:b..l rcu: (detected by 1, t=10502 jiffies, g=11609, q=922 ncpus=2) task:syz.2.9 state:R running task stack:24200 pid:5921 tgid:5912 ppid:5849 task_flags:0x400040 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5392 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6781 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7104 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:199 Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc cc 66 66 66 66 66 66 2e RSP: 0000:ffffc90004c67298 EFLAGS: 00000a02 RAX: dffffc0000000000 RBX: ffffffff81724882 RCX: dae39ec2f2f0a500 RDX: 0000000000000000 RSI: ffffffff81724882 RDI: 1ffffffff1c27968 RBP: ffffffff81724865 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc90004c67478 R11: ffffffff81ac9730 R12: 0000000000000002 R13: ffffffff8e13cb40 R14: ffffffff8e13cb40 R15: 0000000000000000 __kasan_check_byte+0x12/0x40 mm/kasan/common.c:556 kasan_check_byte include/linux/kasan.h:399 [inline] lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5845 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:841 [inline] class_rcu_constructor include/linux/rcupdate.h:1155 [inline] unwind_next_frame+0xc2/0x2390 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122 save_stack+0xf7/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:308 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1258 [inline] __free_frozen_pages+0xc68/0xe50 mm/page_alloc.c:2721 discard_slab mm/slub.c:2716 [inline] __put_partials+0x161/0x1c0 mm/slub.c:3185 put_cpu_partial+0x17c/0x250 mm/slub.c:3260 __slab_free+0x2f7/0x400 mm/slub.c:4512 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:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4147 [inline] kmem_cache_alloc_bulk_noprof+0x4e0/0x790 mm/slub.c:5371 __io_alloc_req_refill+0x9d/0x280 io_uring/io_uring.c:967 io_alloc_req io_uring/io_uring.h:448 [inline] io_submit_sqes+0xc31/0x1c50 io_uring/io_uring.c:2318 __do_sys_io_uring_enter io_uring/io_uring.c:3396 [inline] __se_sys_io_uring_enter+0x2df/0x2b20 io_uring/io_uring.c:3330 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: 0033:0x7f2b59d8e969 RSP: 002b:00007f2b57791038 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 00007f2b59fb6240 RCX: 00007f2b59d8e969 RDX: 0000000000000000 RSI: 00000000000047f6 RDI: 0000000000000008 RBP: 00007f2b59e10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2b59fb6240 R15: 00007f2b5a0dfa28 net_ratelimit: 16348 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 bridge_slave_0 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:a2:b7:f9:84:d6:4c, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:b7:f9:84:d6:4c, vlan:0) net_ratelimit: 17161 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:b7:f9:84:d6:4c, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, 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: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)