bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:16:53:b5:e8:65, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P27442/1:b..l rcu: (detected by 1, t=10503 jiffies, g=313529, q=1431 ncpus=2) task:syz.6.5853 state:R running task stack:25192 pid:27442 tgid:27440 ppid:21076 task_flags:0x40054c flags:0x00080003 Call Trace: context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1821/0x5740 kernel/sched/core.c:7189 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x760 kernel/entry/common.c:164 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_next_frame+0x73e/0x2550 arch/x86/kernel/unwind_orc.c:530 Code: 0b 80 e3 01 48 8b 44 24 38 0f b6 04 28 84 c0 0f 85 c4 17 00 00 48 8b 44 24 18 88 18 0f b7 1e 83 e3 0f 83 fb 04 4c 8b 7c 24 78 <7e> 7a 83 fb 06 0f 8e 7a 01 00 00 83 fb 07 0f 84 c7 02 00 00 83 fb RSP: 0018:ffffc9000301f558 EFLAGS: 00000246 RAX: ffffc9000301f65d RBX: 0000000000000004 RCX: ffffffff90485be8 RDX: ffffffff90c3aff0 RSI: ffffffff90c3aff4 RDI: ffffffff8c28b600 RBP: dffffc0000000000 R08: 0000000000000005 R09: ffffffff8e95cca0 R10: ffffc9000301f678 R11: ffffffff81b0f020 R12: ffffffff90c3aff5 R13: 1ffff92000603ec5 R14: ffffc9000301f628 R15: ffffc9000301f660 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 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1402 [inline] __free_frozen_pages+0xbc7/0xd30 mm/page_alloc.c:2943 vfree+0x1d1/0x2f0 mm/vmalloc.c:3472 kcov_put kernel/kcov.c:442 [inline] kcov_close+0x28/0x50 kernel/kcov.c:543 __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:976 do_group_exit+0x21b/0x2d0 kernel/exit.c:1119 get_signal+0x1284/0x1330 kernel/signal.c:3037 arch_do_signal_or_restart+0xbc/0x840 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline] exit_to_user_mode_loop+0x8c/0x4d0 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:230 [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: 0033:0x7f7b7ef9ce59 RSP: 002b:00007f7b7fe300e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f7b7f216098 RCX: 00007f7b7ef9ce59 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7b7f216098 RBP: 00007f7b7f216090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7b7f216128 R14: 00007f7b7f33f960 R15: 00007f7b7f33fa48 net_ratelimit: 18417 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:72:16:53:b5:e8:65, 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:72:16:53:b5:e8:65, vlan:0) bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 19986 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:72:16:53:b5:e8:65, 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:72:16:53:b5:e8:65, 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:72:16:53:b5:e8:65, vlan:0)