syzbot

bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
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kernel BUG at net/core/skbuff.c:3522!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 3015 Comm: kworker/u8:10 Not tainted 6.16.0-rc4-syzkaller-00109-gb9fd9888a565 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:skb_checksum+0x8b0/0x8c0 net/core/skbuff.c:3522
Code: 66 ff d3 f8 e9 45 f9 ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 5b f9 ff ff 4c 89 ff e8 eb fe d3 f8 e9 4e f9 ff ff e8 a1 7c 70 f8 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc90000006948 EFLAGS: 00010246
RAX: ffffffff894fe1ff RBX: 0000000000000006 RCX: ffff88802fd4da00
RDX: 0000000000000100 RSI: 0000000000000006 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000100 R12: 0000000000000000
R13: 0000000000000088 R14: 0000000000000088 R15: 000000000000008e
FS:  0000000000000000(0000) GS:ffff888125c1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b5fdf96a58 CR3: 000000000df38000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 __skb_checksum_complete+0x4b/0x3d0 net/core/skbuff.c:3721
 __skb_checksum_validate_complete include/linux/skbuff.h:4683 [inline]
 icmpv6_rcv+0x815/0x1c80 net/ipv6/icmp.c:933
 ip6_protocol_deliver_rcu+0xe0b/0x15c0 net/ipv6/ip6_input.c:436
 ip6_input_finish+0xde/0x190 net/ipv6/ip6_input.c:480
 NF_HOOK+0x30c/0x3a0 include/linux/netfilter.h:317
 ip6_input+0x16a/0x270 net/ipv6/ip6_input.c:491
 ip6_mc_input+0x79a/0xbe0 net/ipv6/ip6_input.c:588
 ip_sabotage_in+0x1e1/0x270 net/bridge/br_netfilter_hooks.c:993
 nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
 nf_hook_slow+0xc5/0x220 net/netfilter/core.c:623
 nf_hook include/linux/netfilter.h:272 [inline]
 NF_HOOK+0x206/0x3a0 include/linux/netfilter.h:315
 __netif_receive_skb_one_core net/core/dev.c:5977 [inline]
 __netif_receive_skb+0xd3/0x380 net/core/dev.c:6090
 netif_receive_skb_internal net/core/dev.c:6176 [inline]
 netif_receive_skb+0x1cb/0x790 net/core/dev.c:6235
 NF_HOOK+0x9d/0x390 include/linux/netfilter.h:318
 br_handle_frame_finish+0x14d1/0x19b0 net/bridge/br_input.c:-1
 br_nf_hook_thresh+0x3c3/0x4a0 net/bridge/br_netfilter_hooks.c:-1
 br_nf_pre_routing_finish_ipv6+0x948/0xd00 net/bridge/br_netfilter_ipv6.c:-1
 NF_HOOK include/linux/netfilter.h:317 [inline]
 br_nf_pre_routing_ipv6+0x37e/0x6b0 net/bridge/br_netfilter_ipv6.c:184
 nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]
 nf_hook_bridge_pre net/bridge/br_input.c:283 [inline]
 br_handle_frame+0x97f/0x14c0 net/bridge/br_input.c:434
 __netif_receive_skb_core+0x10de/0x4180 net/core/dev.c:5863
 __netif_receive_skb_one_core net/core/dev.c:5975 [inline]
 __netif_receive_skb+0x72/0x380 net/core/dev.c:6090
 process_backlog+0x60e/0x14f0 net/core/dev.c:6442
 __napi_poll+0xc4/0x480 net/core/dev.c:7414
 napi_poll net/core/dev.c:7478 [inline]
 net_rx_action+0x707/0xe30 net/core/dev.c:7605
 handle_softirqs+0x286/0x870 kernel/softirq.c:579
 do_softirq+0xec/0x180 kernel/softirq.c:480
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x17d/0x1c0 kernel/softirq.c:407
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
 nsim_dev_trap_report_work+0x7c7/0xb80 drivers/net/netdevsim/dev.c:851
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x70e/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:skb_checksum+0x8b0/0x8c0 net/core/skbuff.c:3522
Code: 66 ff d3 f8 e9 45 f9 ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 5b f9 ff ff 4c 89 ff e8 eb fe d3 f8 e9 4e f9 ff ff e8 a1 7c 70 f8 90 <0f> 0b 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90
RSP: 0018:ffffc90000006948 EFLAGS: 00010246
RAX: ffffffff894fe1ff RBX: 0000000000000006 RCX: ffff88802fd4da00
RDX: 0000000000000100 RSI: 0000000000000006 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000002
R10: 0000000000000003 R11: 0000000000000100 R12: 0000000000000000
R13: 0000000000000088 R14: 0000000000000088 R15: 000000000000008e
FS:  0000000000000000(0000) GS:ffff888125c1d000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b5fdf96a58 CR3: 000000000df38000 CR4: 00000000003526f0