bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (10488 ticks this GP) idle=5f24/1/0x4000000000000000 softirq=21697/21699 fqs=350 rcu: hardirqs softirqs csw/system rcu: number: 2179638 2555 0 rcu: cputime: 33141 19272 60 ==> 52470(ms) rcu: (t=10500 jiffies g=24433 q=853 ncpus=2) rcu: rcu_preempt kthread starved for 717 jiffies! g24433 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:26992 pid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x1553/0x45a0 kernel/sched/core.c:6700 schedule+0xbd/0x170 kernel/sched/core.c:6774 schedule_timeout+0x188/0x2d0 kernel/time/timer.c:2168 rcu_gp_fqs_loop+0x313/0x1590 kernel/rcu/tree.c:1667 rcu_gp_kthread+0x9d/0x3b0 kernel/rcu/tree.c:1866 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 rcu: Stack dump where RCU GP kthread last ran: CPU: 0 PID: 8450 Comm: syz.3.759 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:get_current arch/x86/include/asm/current.h:41 [inline] RIP: 0010:write_comp_data kernel/kcov.c:244 [inline] RIP: 0010:__sanitizer_cov_trace_cmp8+0x8/0x80 kernel/kcov.c:293 Code: 08 04 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d 90 88 7c 7e 65 8b 15 91 88 7c 7e 81 e2 00 01 ff 00 74 RSP: 0018:ffffc900000064b0 EFLAGS: 00000202 RAX: ffffffff813b3949 RBX: ffffffff816b9bb8 RCX: ffff8880218a5a00 RDX: 0000000000000100 RSI: 0000000000000001 RDI: ffffffff816b9bb8 RBP: ffffc900000065d8 R08: ffffc90000006650 R09: 0000000000000023 R10: 0000000000000004 R11: 0000000000000100 R12: ffffc90000006588 R13: dffffc0000000000 R14: ffffc900000065bd R15: 0000000000000001 FS: 00007f4a9347d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd7ee17dac CR3: 000000007a264000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: orc_find arch/x86/kernel/unwind_orc.c:202 [inline] unwind_next_frame+0x189/0x2970 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0x144/0x190 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4e/0x70 mm/kasan/common.c:53 kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:237 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1811 [inline] slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837 slab_free mm/slub.c:3830 [inline] kmem_cache_free+0xf8/0x270 mm/slub.c:3852 skb_ext_del include/linux/skbuff.h:4830 [inline] nf_bridge_info_free net/bridge/br_netfilter_hooks.c:152 [inline] br_nf_dev_queue_xmit+0x492/0x1b80 net/bridge/br_netfilter_hooks.c:-1 NF_HOOK+0x66e/0x700 include/linux/netfilter.h:304 br_nf_post_routing+0xb41/0xfb0 net/bridge/br_netfilter_hooks.c:977 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:259 [inline] NF_HOOK+0x23e/0x3e0 include/linux/netfilter.h:302 br_forward_finish+0xd3/0x130 net/bridge/br_forward.c:66 br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:1184 [inline] br_nf_forward_finish+0xa51/0xe80 net/bridge/br_netfilter_hooks.c:684 NF_HOOK+0x66e/0x700 include/linux/netfilter.h:304 br_nf_forward_ip+0xcc1/0x1110 net/bridge/br_netfilter_hooks.c:754 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:259 [inline] NF_HOOK+0x23e/0x3e0 include/linux/netfilter.h:302 __br_forward+0x433/0x610 net/bridge/br_forward.c:115 br_handle_frame_finish+0x13c5/0x18f0 net/bridge/br_input.c:215 br_nf_hook_thresh+0x3cd/0x4a0 net/bridge/br_netfilter_hooks.c:1184 br_nf_pre_routing_finish_ipv6+0x9dc/0xd00 net/bridge/br_netfilter_ipv6.c:-1 NF_HOOK include/linux/netfilter.h:304 [inline] br_nf_pre_routing_ipv6+0x349/0x6b0 net/bridge/br_netfilter_ipv6.c:184 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_bridge_pre net/bridge/br_input.c:277 [inline] br_handle_frame+0x1245/0x14d0 net/bridge/br_input.c:424 __netif_receive_skb_core+0xfab/0x3af0 net/core/dev.c:5540 __netif_receive_skb_one_core net/core/dev.c:5644 [inline] __netif_receive_skb+0x74/0x290 net/core/dev.c:5760 process_backlog+0x391/0x6f0 net/core/dev.c:6088 __napi_poll+0xc0/0x460 net/core/dev.c:6650 napi_poll net/core/dev.c:6717 [inline] net_rx_action+0x616/0xc40 net/core/dev.c:6853 handle_softirqs+0x280/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:info_print_prefix+0x18f/0x360 kernel/printk/printk.c:1355 Code: cb 8a e8 a4 1a 0d 09 48 98 48 01 c3 4c 8d 6c 24 40 49 83 c6 14 4c 89 f0 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df 0f b6 04 10 <84> c0 0f 85 00 01 00 00 45 8b 26 4c 8b 7c 24 10 4d 8d 34 1f 48 89 RSP: 0018:ffffc900044de600 EFLAGS: 00000a03 RAX: 0000000000000000 RBX: 000000000000000e RCX: e1751909d8434d00 RDX: dffffc0000000000 RSI: 000000000002c4f5 RDI: 000000000002c4f6 RBP: ffffc900044de6b0 R08: ffffc900044de74d R09: 1ffff9200089bce9 R10: dffffc0000000000 R11: fffff5200089bcea R12: 0000000000000000 R13: ffffc900044de640 R14: ffffc900044de8d4 R15: ffffc900044de8c8 record_print_text+0x177/0x450 kernel/printk/printk.c:1402 printk_get_next_message+0x2ab/0x980 kernel/printk/printk.c:2876 console_emit_next_record kernel/printk/printk.c:2911 [inline] console_flush_all+0x3a8/0xd20 kernel/printk/printk.c:3000 console_unlock+0xad/0x350 kernel/printk/printk.c:3069 vprintk_emit+0x497/0x610 kernel/printk/printk.c:2341 _printk+0xde/0x130 kernel/printk/printk.c:2366 validate_nla lib/nlattr.c:414 [inline] __nla_validate_parse+0x17fa/0x2ea0 lib/nlattr.c:635 __nla_validate+0x40/0x50 lib/nlattr.c:677 nlmsg_validate_deprecated include/net/netlink.h:898 [inline] rtm_to_fib_config+0x91/0x13b0 net/ipv4/fib_frontend.c:736 inet_rtm_newroute+0x116/0x240 net/ipv4/fib_frontend.c:907 rtnetlink_rcv_msg+0x869/0xfa0 net/core/rtnetlink.c:6476 netlink_rcv_skb+0x241/0x4d0 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x751/0x8d0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8d0/0xbf0 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x5ba/0x960 net/socket.c:2594 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2648 __sys_sendmsg net/socket.c:2677 [inline] __do_sys_sendmsg net/socket.c:2686 [inline] __se_sys_sendmsg+0x1c2/0x2b0 net/socket.c:2684 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f4a9259ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4a9347d028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4a92815fa0 RCX: 00007f4a9259ce59 RDX: 000000002002c040 RSI: 00002000000003c0 RDI: 0000000000000007 RBP: 00007f4a92632e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4a92816038 R14: 00007f4a92815fa0 R15: 00007ffcf5c61ad8 CPU: 0 PID: 8450 Comm: syz.3.759 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:get_current arch/x86/include/asm/current.h:41 [inline] RIP: 0010:write_comp_data kernel/kcov.c:244 [inline] RIP: 0010:__sanitizer_cov_trace_cmp8+0x8/0x80 kernel/kcov.c:293 Code: 08 04 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0d 90 88 7c 7e 65 8b 15 91 88 7c 7e 81 e2 00 01 ff 00 74 RSP: 0018:ffffc900000064b0 EFLAGS: 00000202 RAX: ffffffff813b3949 RBX: ffffffff816b9bb8 RCX: ffff8880218a5a00 RDX: 0000000000000100 RSI: 0000000000000001 RDI: ffffffff816b9bb8 RBP: ffffc900000065d8 R08: ffffc90000006650 R09: 0000000000000023 R10: 0000000000000004 R11: 0000000000000100 R12: ffffc90000006588 R13: dffffc0000000000 R14: ffffc900000065bd R15: 0000000000000001 FS: 00007f4a9347d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd7ee17dac CR3: 000000007a264000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: orc_find arch/x86/kernel/unwind_orc.c:202 [inline] unwind_next_frame+0x189/0x2970 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0x144/0x190 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4e/0x70 mm/kasan/common.c:53 kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522 ____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:237 kasan_slab_free include/linux/kasan.h:164 [inline] slab_free_hook mm/slub.c:1811 [inline] slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837 slab_free mm/slub.c:3830 [inline] kmem_cache_free+0xf8/0x270 mm/slub.c:3852 skb_ext_del include/linux/skbuff.h:4830 [inline] nf_bridge_info_free net/bridge/br_netfilter_hooks.c:152 [inline] br_nf_dev_queue_xmit+0x492/0x1b80 net/bridge/br_netfilter_hooks.c:-1 NF_HOOK+0x66e/0x700 include/linux/netfilter.h:304 br_nf_post_routing+0xb41/0xfb0 net/bridge/br_netfilter_hooks.c:977 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:259 [inline] NF_HOOK+0x23e/0x3e0 include/linux/netfilter.h:302 br_forward_finish+0xd3/0x130 net/bridge/br_forward.c:66 br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:1184 [inline] br_nf_forward_finish+0xa51/0xe80 net/bridge/br_netfilter_hooks.c:684 NF_HOOK+0x66e/0x700 include/linux/netfilter.h:304 br_nf_forward_ip+0xcc1/0x1110 net/bridge/br_netfilter_hooks.c:754 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:259 [inline] NF_HOOK+0x23e/0x3e0 include/linux/netfilter.h:302 __br_forward+0x433/0x610 net/bridge/br_forward.c:115 br_handle_frame_finish+0x13c5/0x18f0 net/bridge/br_input.c:215 br_nf_hook_thresh+0x3cd/0x4a0 net/bridge/br_netfilter_hooks.c:1184 br_nf_pre_routing_finish_ipv6+0x9dc/0xd00 net/bridge/br_netfilter_ipv6.c:-1 NF_HOOK include/linux/netfilter.h:304 [inline] br_nf_pre_routing_ipv6+0x349/0x6b0 net/bridge/br_netfilter_ipv6.c:184 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_bridge_pre net/bridge/br_input.c:277 [inline] br_handle_frame+0x1245/0x14d0 net/bridge/br_input.c:424 __netif_receive_skb_core+0xfab/0x3af0 net/core/dev.c:5540 __netif_receive_skb_one_core net/core/dev.c:5644 [inline] __netif_receive_skb+0x74/0x290 net/core/dev.c:5760 process_backlog+0x391/0x6f0 net/core/dev.c:6088 __napi_poll+0xc0/0x460 net/core/dev.c:6650 napi_poll net/core/dev.c:6717 [inline] net_rx_action+0x616/0xc40 net/core/dev.c:6853 handle_softirqs+0x280/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:info_print_prefix+0x18f/0x360 kernel/printk/printk.c:1355 Code: cb 8a e8 a4 1a 0d 09 48 98 48 01 c3 4c 8d 6c 24 40 49 83 c6 14 4c 89 f0 48 c1 e8 03 48 ba 00 00 00 00 00 fc ff df 0f b6 04 10 <84> c0 0f 85 00 01 00 00 45 8b 26 4c 8b 7c 24 10 4d 8d 34 1f 48 89 RSP: 0018:ffffc900044de600 EFLAGS: 00000a03 RAX: 0000000000000000 RBX: 000000000000000e RCX: e1751909d8434d00 RDX: dffffc0000000000 RSI: 000000000002c4f5 RDI: 000000000002c4f6 RBP: ffffc900044de6b0 R08: ffffc900044de74d R09: 1ffff9200089bce9 R10: dffffc0000000000 R11: fffff5200089bcea R12: 0000000000000000 R13: ffffc900044de640 R14: ffffc900044de8d4 R15: ffffc900044de8c8 record_print_text+0x177/0x450 kernel/printk/printk.c:1402 printk_get_next_message+0x2ab/0x980 kernel/printk/printk.c:2876 console_emit_next_record kernel/printk/printk.c:2911 [inline] console_flush_all+0x3a8/0xd20 kernel/printk/printk.c:3000 console_unlock+0xad/0x350 kernel/printk/printk.c:3069 vprintk_emit+0x497/0x610 kernel/printk/printk.c:2341 _printk+0xde/0x130 kernel/printk/printk.c:2366 validate_nla lib/nlattr.c:414 [inline] __nla_validate_parse+0x17fa/0x2ea0 lib/nlattr.c:635 __nla_validate+0x40/0x50 lib/nlattr.c:677 nlmsg_validate_deprecated include/net/netlink.h:898 [inline] rtm_to_fib_config+0x91/0x13b0 net/ipv4/fib_frontend.c:736 inet_rtm_newroute+0x116/0x240 net/ipv4/fib_frontend.c:907 rtnetlink_rcv_msg+0x869/0xfa0 net/core/rtnetlink.c:6476 netlink_rcv_skb+0x241/0x4d0 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x751/0x8d0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8d0/0xbf0 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x5ba/0x960 net/socket.c:2594 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2648 __sys_sendmsg net/socket.c:2677 [inline] __do_sys_sendmsg net/socket.c:2686 [inline] __se_sys_sendmsg+0x1c2/0x2b0 net/socket.c:2684 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f4a9259ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4a9347d028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4a92815fa0 RCX: 00007f4a9259ce59 RDX: 000000002002c040 RSI: 00002000000003c0 RDI: 0000000000000007 RBP: 00007f4a92632e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4a92816038 R14: 00007f4a92815fa0 R15: 00007ffcf5c61ad8 net_ratelimit: 7151 callbacks suppressed bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) NMI backtrace for cpu 0 CPU: 0 PID: 8450 Comm: syz.3.759 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline] RIP: 0010:__orc_find arch/x86/kernel/unwind_orc.c:102 [inline] RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline] RIP: 0010:unwind_next_frame+0x4aa/0x2970 arch/x86/kernel/unwind_orc.c:494 Code: 29 e0 48 89 c1 48 c1 f9 02 48 c1 e8 3f 48 01 c8 48 83 e0 fe 4d 8d 3c 44 4c 89 f8 48 c1 e8 03 0f b6 04 10 84 c0 75 3e 4d 63 2f <4d> 01 fd 4c 89 ef 4c 89 f6 e8 28 f1 4b 00 49 8d 47 04 4d 39 f5 4c RSP: 0018:ffffc90000006a98 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff8ef6f248 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 000000000017c419 RDI: 000000000017c41a RBP: ffffffff8ef6f248 R08: ffffc90000006c30 R09: 0000000000000009 R10: 0000000000000004 R11: 0000000000000100 R12: ffffffff8ef6f248 R13: fffffffffa6aa100 R14: ffffffff8961a304 R15: ffffffff8ef6f248 FS: 00007f4a9347d6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd7ee17dac CR3: 000000007a264000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x144/0x190 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:46 [inline] kasan_set_track+0x4e/0x70 mm/kasan/common.c:53 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x6e/0x4b0 mm/slab.h:767 slab_alloc_node mm/slub.c:3495 [inline] slab_alloc mm/slub.c:3503 [inline] __kmem_cache_alloc_lru mm/slub.c:3510 [inline] kmem_cache_alloc+0x11a/0x2d0 mm/slub.c:3519 skb_ext_maybe_cow net/core/skbuff.c:6670 [inline] skb_ext_add+0x1b3/0x8e0 net/core/skbuff.c:6744 nf_bridge_unshare net/bridge/br_netfilter_hooks.c:165 [inline] br_nf_forward_ip+0xc6/0x1110 net/bridge/br_netfilter_hooks.c:709 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_slow+0xbd/0x200 net/netfilter/core.c:626 nf_hook include/linux/netfilter.h:259 [inline] NF_HOOK+0x23e/0x3e0 include/linux/netfilter.h:302 __br_forward+0x433/0x610 net/bridge/br_forward.c:115 br_handle_frame_finish+0x13c5/0x18f0 net/bridge/br_input.c:215 br_nf_hook_thresh+0x3cd/0x4a0 net/bridge/br_netfilter_hooks.c:1184 br_nf_pre_routing_finish_ipv6+0x9dc/0xd00 net/bridge/br_netfilter_ipv6.c:-1 NF_HOOK include/linux/netfilter.h:304 [inline] br_nf_pre_routing_ipv6+0x349/0x6b0 net/bridge/br_netfilter_ipv6.c:184 nf_hook_entry_hookfn include/linux/netfilter.h:144 [inline] nf_hook_bridge_pre net/bridge/br_input.c:277 [inline] br_handle_frame+0x1245/0x14d0 net/bridge/br_input.c:424 __netif_receive_skb_core+0xfab/0x3af0 net/core/dev.c:5540 __netif_receive_skb_one_core net/core/dev.c:5644 [inline] __netif_receive_skb+0x74/0x290 net/core/dev.c:5760 process_backlog+0x391/0x6f0 net/core/dev.c:6088 __napi_poll+0xc0/0x460 net/core/dev.c:6650 napi_poll net/core/dev.c:6717 [inline] net_rx_action+0x616/0xc40 net/core/dev.c:6853 handle_softirqs+0x280/0x820 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661 irq_exit_rcu+0x9/0x20 kernel/softirq.c:673 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:vsnprintf+0x14d5/0x1ba0 lib/vsprintf.c:2773 Code: 41 8b 17 49 bf 00 00 00 00 00 fc ff df 4c 89 ef 4c 89 e6 48 89 d9 e8 ea 2e 00 00 49 89 c5 48 89 e8 48 c1 e8 03 42 0f b6 04 38 <84> c0 75 77 80 7d 00 00 0f 84 a8 05 00 00 e8 b8 54 0e f7 49 89 ef RSP: 0018:ffffc900044de478 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000005b RDX: 0000000000000000 RSI: ffffffff8acb8d40 RDI: ffffc900044de740 RBP: ffffffff8acb8d41 R08: ffffc900044de740 R09: 1ffff9200089bce8 R10: dffffc0000000000 R11: fffff5200089bce9 R12: ffffc900844de73f R13: ffffc900044de741 R14: 0000000000000001 R15: dffffc0000000000 sprintf+0xe8/0x140 lib/vsprintf.c:3027 print_time kernel/printk/printk.c:1327 [inline] info_print_prefix+0x16c/0x360 kernel/printk/printk.c:1353 record_print_text+0x177/0x450 kernel/printk/printk.c:1402 printk_get_next_message+0x2ab/0x980 kernel/printk/printk.c:2876 console_emit_next_record kernel/printk/printk.c:2911 [inline] console_flush_all+0x3a8/0xd20 kernel/printk/printk.c:3000 console_unlock+0xad/0x350 kernel/printk/printk.c:3069 vprintk_emit+0x497/0x610 kernel/printk/printk.c:2341 _printk+0xde/0x130 kernel/printk/printk.c:2366 validate_nla lib/nlattr.c:414 [inline] __nla_validate_parse+0x17fa/0x2ea0 lib/nlattr.c:635 __nla_validate+0x40/0x50 lib/nlattr.c:677 nlmsg_validate_deprecated include/net/netlink.h:898 [inline] rtm_to_fib_config+0x91/0x13b0 net/ipv4/fib_frontend.c:736 inet_rtm_newroute+0x116/0x240 net/ipv4/fib_frontend.c:907 rtnetlink_rcv_msg+0x869/0xfa0 net/core/rtnetlink.c:6476 netlink_rcv_skb+0x241/0x4d0 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x751/0x8d0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8d0/0xbf0 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x5ba/0x960 net/socket.c:2594 ___sys_sendmsg+0x2a6/0x360 net/socket.c:2648 __sys_sendmsg net/socket.c:2677 [inline] __do_sys_sendmsg net/socket.c:2686 [inline] __se_sys_sendmsg+0x1c2/0x2b0 net/socket.c:2684 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f4a9259ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4a9347d028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f4a92815fa0 RCX: 00007f4a9259ce59 RDX: 000000002002c040 RSI: 00002000000003c0 RDI: 0000000000000007 RBP: 00007f4a92632e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4a92816038 R14: 00007f4a92815fa0 R15: 00007ffcf5c61ad8 bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0) bridge0: received packet on bond0 with own address as source address (addr:8a:91:ec:11:b6:91, vlan:0)