bridge0: received packet on veth1 with own address as source address (addr:aa:aa:aa:aa:aa:18, vlan:0) bridge0: received packet on veth1 with own address as source address (addr:aa:aa:aa:aa:aa:18, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P30610/1:b..l rcu: (detected by 1, t=10543 jiffies, g=272713, q=1857 ncpus=2) task:syz.3.5862 state:R running task stack:23496 pid:30610 tgid:30609 ppid:18934 task_flags:0x400140 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5526 [inline] __schedule+0x17db/0x58f0 kernel/sched/core.c:7276 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7598 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x910 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_release+0x2e1/0x3c0 kernel/locking/lockdep.c:5968 Code: c7 f1 11 00 00 00 00 eb b5 e8 5b 97 41 0a f7 c3 00 02 00 00 74 b9 65 48 8b 05 b3 82 f1 11 48 3b 44 24 28 75 48 fb 48 83 c4 30 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 d0 9b 44 0a cc 48 8d 3d e8 0a da RSP: 0018:ffffc900062b6548 EFLAGS: 00000286 RAX: 208b1fa446be7b00 RBX: 0000000000000206 RCX: 0000000000000046 RDX: ffffc900062b6601 RSI: ffffffff8e6fe7fc RDI: ffffffff8c6d9a80 RBP: ffff8880284e8bd8 R08: ffffc900062b7820 R09: 0000000000000000 R10: ffffc900062b6678 R11: fffff52000c56cd1 R12: 0000000000000001 R13: 0000000000000001 R14: ffffffff8ed5c8a0 R15: ffff8880284e8000 rcu_lock_release include/linux/rcupdate.h:319 [inline] rcu_read_unlock include/linux/rcupdate.h:880 [inline] class_rcu_destructor include/linux/rcupdate.h:1216 [inline] unwind_next_frame+0x1baa/0x2550 arch/x86/kernel/unwind_orc.c:709 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 unpoison_slab_object mm/kasan/common.c:340 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4683 [inline] slab_alloc_node mm/slub.c:4996 [inline] kmem_cache_alloc_node_noprof+0x354/0x610 mm/slub.c:5068 __alloc_skb+0x1db/0x7a0 net/core/skbuff.c:704 alloc_skb include/linux/skbuff.h:1384 [inline] nlmsg_new include/net/netlink.h:1055 [inline] rtmsg_ifinfo_build_skb+0x7f/0x260 net/core/rtnetlink.c:4580 rtmsg_ifinfo_event net/core/rtnetlink.c:4622 [inline] rtmsg_ifinfo+0x8c/0x1a0 net/core/rtnetlink.c:4631 netif_state_change+0x297/0x3a0 net/core/dev.c:1627 do_setlink+0x3c57/0x4670 net/core/rtnetlink.c:3513 rtnl_group_changelink net/core/rtnetlink.c:3919 [inline] __rtnl_newlink net/core/rtnetlink.c:4085 [inline] rtnl_newlink+0x146f/0x1c30 net/core/rtnetlink.c:4215 rtnetlink_rcv_msg+0x802/0xc00 net/core/rtnetlink.c:7132 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7bd/0x940 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:800 __sock_sendmsg net/socket.c:815 [inline] ____sys_sendmsg+0x54e/0x850 net/socket.c:2713 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2767 __sys_sendmsg net/socket.c:2799 [inline] __do_sys_sendmsg net/socket.c:2804 [inline] __se_sys_sendmsg net/socket.c:2802 [inline] __x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2802 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1ecc19e159 RSP: 002b:00007f1ecd03b028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f1ecc425fa0 RCX: 00007f1ecc19e159 RDX: 0000000000000000 RSI: 0000200000003880 RDI: 0000000000000003 RBP: 00007f1ecc23503b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1ecc426038 R14: 00007f1ecc425fa0 R15: 00007f1ecc54fa48