bridge0: received packet on veth1_to_bridge with own address as source address (addr:da:9f:59:b6:9d:3f, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P31907/1:b..l rcu: (detected by 1, t=10519 jiffies, g=174613, q=1591 ncpus=2) task:syz.2.7208 state:R running task stack:26888 pid:31907 tgid:31903 ppid:25149 task_flags:0x40044c flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5533 [inline] __schedule+0x17db/0x58f0 kernel/sched/core.c:7284 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x920 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:882 [inline] RIP: 0010:class_rcu_destructor include/linux/rcupdate.h:1216 [inline] RIP: 0010:unwind_next_frame+0x1baa/0x2550 arch/x86/kernel/unwind_orc.c:709 Code: ea 0f 01 48 c7 c7 c0 c3 09 8c be 6f 03 00 00 48 c7 c2 60 c4 09 8c e8 d5 85 2b 00 48 c7 c7 a0 c8 d5 8f 4c 89 ee e8 66 6a 2b 00 c1 22 35 00 89 e8 48 83 c4 70 5b 41 5c 41 5d 41 5e 41 5f 5d e9 RSP: 0018:ffffc90008b670e0 EFLAGS: 00000282 RAX: e283521a7d609200 RBX: ffffc90008b67198 RCX: 0000000000000046 RDX: ffffc90008b67101 RSI: ffffffff8e6dcd97 RDI: ffffffff8c6dd880 RBP: 1ffffffff242b301 R08: ffffc90008b675a0 R09: 0000000000000000 R10: ffffc90008b671d8 R11: fffff5200116ce3d R12: ffffc90008b60000 R13: ffffffff817821df R14: ffffc90008b67188 R15: ffffc90008b675b0 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 kasan_save_stack+0x3e/0x60 mm/kasan/common.c:57 kasan_record_aux_stack+0xbd/0xd0 mm/kasan/generic.c:556 __call_rcu_common kernel/rcu/tree.c:3181 [inline] call_rcu+0xee/0x8b0 kernel/rcu/tree.c:3301 slab_free_hook mm/slub.c:2712 [inline] slab_free mm/slub.c:6509 [inline] kmem_cache_free+0x471/0x650 mm/slub.c:6636 anon_vma_free mm/rmap.c:137 [inline] __put_anon_vma+0x12b/0x2d0 mm/rmap.c:2974 put_anon_vma mm/internal.h:290 [inline] unlink_anon_vmas+0x544/0x720 mm/rmap.c:540 free_pgtables+0x836/0xb70 mm/memory.c:414 exit_mmap+0x4aa/0x9f0 mm/mmap.c:1327 __mmput+0x118/0x420 kernel/fork.c:1193 exit_mm+0x18e/0x240 kernel/exit.c:592 do_exit+0x6cd/0x2360 kernel/exit.c:974 do_group_exit+0x22d/0x2f0 kernel/exit.c:1129 get_signal+0x121b/0x12c0 kernel/signal.c:3112 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline] exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101 __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:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline] do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd30c59e1d9 RSP: 002b:00007fd30d3d6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000004 RBX: 00007fd30c826180 RCX: 00007fd30c59e1d9 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000002 RBP: 00007fd30c635888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd30c826218 R14: 00007fd30c826180 R15: 00007ffd55ed0ce8 net_ratelimit: 9777 callbacks suppressed bridge0: received packet on veth1_to_bridge with own address as source address (addr:da:9f:59:b6:9d:3f, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)