bridge0: received packet on veth0_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): P7772/1:b..l rcu: (detected by 0, t=10503 jiffies, g=23453, q=1528 ncpus=2) task:syz.2.373 state:R running task stack:28392 pid:7772 tgid:7768 ppid:5867 task_flags:0x400040 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5357 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6961 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7288 irqentry_exit+0x36/0x90 kernel/entry/common.c:197 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x66/0x70 kernel/kcov.c:235 Code: 82 18 16 00 00 83 f8 02 75 20 48 8b 8a 20 16 00 00 8b 92 1c 16 00 00 48 8b 01 48 83 c0 01 48 39 d0 73 07 48 89 01 48 89 34 c1 cc cc cc cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0000:ffffc90003c6f688 EFLAGS: 00000246 RAX: 0000000000080000 RBX: ffff88801f2dd180 RCX: ffffc9000d01d000 RDX: 0000000000080000 RSI: ffffffff823bac59 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888027abf0c0 R13: 0000000000000002 R14: ffff8880591a1980 R15: ffff88807ddfd010 rcu_read_unlock include/linux/rcupdate.h:869 [inline] __fget_files+0x1d9/0x3c0 fs/file.c:1072 __fget_light fs/file.c:1173 [inline] fdget+0x1a9/0x210 fs/file.c:1181 class_fd_constructor include/linux/file.h:83 [inline] select_poll_one fs/select.c:469 [inline] do_select+0xc46/0x17e0 fs/select.c:536 core_sys_select+0x453/0xc10 fs/select.c:677 kern_select+0x15d/0x1e0 fs/select.c:718 __do_sys_select fs/select.c:725 [inline] __se_sys_select fs/select.c:722 [inline] __x64_sys_select+0xbd/0x160 fs/select.c:722 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x490 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f13a2b8ebe9 RSP: 002b:00007f13a0df6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 RAX: ffffffffffffffda RBX: 00007f13a2dc6090 RCX: 00007f13a2b8ebe9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000000e RBP: 00007f13a2c11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000200000000100 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f13a2dc6128 R14: 00007f13a2dc6090 R15: 00007ffd6ccc46f8 bridge0: received packet on veth0_to_bridge with own address as source address (addr:42:67:7a:9b:94:d6, 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 veth0_to_bridge with own address as source address (addr:0a:e4:54:68:d6:6a, 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:42:67:7a:9b:94:d6, 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 veth0_to_bridge with own address as source address (addr:0a:e4:54:68:d6:6a, 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)