bridge0: received packet on veth0_to_bridge with own address as source address (addr:66:e5:77:6d:fd:ab, vlan:0) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 20 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Modules linked in: CPU: 1 PID: 20 Comm: ksoftirqd/1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226 Code: 24 45 31 f6 31 ff 89 de e8 7d 94 d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 00 91 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe RSP: 0018:ffffc90000da6588 EFLAGS: 00010246 RAX: ffffffff81a08ea0 RBX: 0000000000000000 RCX: ffff888017a08000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffc90000da69b7 R09: ffffc90000da6984 R10: dffffc0000000000 R11: fffff520001b4d37 R12: ffff888017a09788 R13: ffffc90001308030 R14: ffffc90000da65e8 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe5091f9d58 CR3: 00000000626b7000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline] ____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline] bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163 bpf_prog_f2594087b0f175cc+0x32/0x30c bpf_dispatcher_nop_func include/linux/bpf.h:888 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] bpf_prog_run_pin_on_cpu include/linux/filter.h:652 [inline] bpf_flow_dissect+0x12b/0x3f0 net/core/flow_dissector.c:896 __skb_flow_dissect+0x792/0x60b0 net/core/flow_dissector.c:1024 fib6_rules_early_flow_dissect include/net/ip6_fib.h:614 [inline] ip6_route_input+0x5b7/0xa40 net/ipv6/route.c:2579 ip6_rcv_finish+0x136/0x240 net/ipv6/ip6_input.c:77 ip_sabotage_in+0x1e6/0x290 net/bridge/br_netfilter_hooks.c:979 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_slow+0xb9/0x200 net/netfilter/core.c:584 nf_hook include/linux/netfilter.h:257 [inline] NF_HOOK+0x1f2/0x390 include/linux/netfilter.h:300 __netif_receive_skb_one_core net/core/dev.c:5525 [inline] __netif_receive_skb+0xcc/0x290 net/core/dev.c:5639 netif_receive_skb_internal net/core/dev.c:5725 [inline] netif_receive_skb+0x19e/0x700 net/core/dev.c:5784 NF_HOOK+0x9b/0x360 include/linux/netfilter.h:302 br_handle_frame_finish+0xfda/0x1270 net/bridge/br_input.c:-1 br_nf_hook_thresh+0x3c9/0x4a0 net/bridge/br_netfilter_hooks.c:1155 br_nf_pre_routing_finish_ipv6+0x9c2/0xc90 net/bridge/br_netfilter_ipv6.c:-1 NF_HOOK include/linux/netfilter.h:302 [inline] br_nf_pre_routing_ipv6+0x355/0x680 net/bridge/br_netfilter_ipv6.c:237 nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline] nf_hook_bridge_pre net/bridge/br_input.c:242 [inline] br_handle_frame+0x893/0x1190 net/bridge/br_input.c:384 __netif_receive_skb_core+0xfef/0x3690 net/core/dev.c:5419 __netif_receive_skb_one_core net/core/dev.c:5523 [inline] __netif_receive_skb+0x74/0x290 net/core/dev.c:5639 process_backlog+0x370/0x790 net/core/dev.c:6516 __napi_poll+0xc0/0x430 net/core/dev.c:7075 napi_poll net/core/dev.c:7142 [inline] net_rx_action+0x4d4/0xa10 net/core/dev.c:7232 handle_softirqs+0x339/0x830 kernel/softirq.c:576 run_ksoftirqd+0xa4/0x100 kernel/softirq.c:943 smpboot_thread_fn+0x4f6/0x970 kernel/smpboot.c:164 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287