bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P28219/1:b..l rcu: (detected by 0, t=10503 jiffies, g=108517, q=1034 ncpus=2) task:syz.4.6180 state:R running task stack:24800 pid:28219 tgid:28215 ppid:25273 task_flags:0x400140 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5260 [inline] __schedule+0x14ea/0x5050 kernel/sched/core.c:6867 preempt_schedule_notrace+0x57/0x90 kernel/sched/core.c:7144 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13 class_preempt_notrace_destructor include/linux/preempt.h:469 [inline] __do_trace_lock_release include/trace/events/lock.h:69 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0x391/0x3a0 kernel/locking/lockdep.c:5879 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x1aaa/0x23c0 arch/x86/kernel/unwind_orc.c:695 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:1433 [inline] __free_frozen_pages+0xbf8/0xd70 mm/page_alloc.c:2973 __slab_free+0x2ce/0x320 mm/slub.c:6008 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x97/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4953 [inline] slab_alloc_node mm/slub.c:5263 [inline] kmem_cache_alloc_node_noprof+0x427/0x6f0 mm/slub.c:5315 __alloc_skb+0x1d7/0x390 net/core/skbuff.c:679 alloc_skb include/linux/skbuff.h:1383 [inline] nlmsg_new include/net/netlink.h:1055 [inline] netlink_ack+0x146/0xa50 net/netlink/af_netlink.c:2487 netlink_rcv_skb+0x2b6/0x4b0 net/netlink/af_netlink.c:2556 nfnetlink_rcv+0x2c0/0x27b0 net/netfilter/nfnetlink.c:669 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] ____sys_sendmsg+0xa68/0xad0 net/socket.c:2592 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646 __sys_sendmsg net/socket.c:2678 [inline] __do_sys_sendmsg net/socket.c:2683 [inline] __se_sys_sendmsg net/socket.c:2681 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f053179aeb9 RSP: 002b:00007f05326f2028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0531a16090 RCX: 00007f053179aeb9 RDX: 0000000000000000 RSI: 0000200000000240 RDI: 0000000000000006 RBP: 00007f0531808c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f0531a16128 R14: 00007f0531a16090 R15: 00007fff22ca64f8 bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:dd:c5:79:16:e6, vlan:0)