bond1: (slave lo): failed to get link speed/duplex ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:2273! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 6144 Comm: kworker/u32:15 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: bond3 bond_resend_igmp_join_requests_delayed RIP: 0010:pskb_expand_head+0x62d/0xf80 net/core/skbuff.c:2273 Code: b6 04 02 84 c0 74 08 3c 03 0f 8e af 08 00 00 8b 44 24 28 8b 74 24 2c 29 f0 01 83 e0 00 00 00 e9 72 ff ff ff e8 04 54 7e f8 90 <0f> 0b e8 fc 53 7e f8 90 0f 0b e8 f4 53 7e f8 41 81 cd 00 00 02 00 RSP: 0018:ffffc900043475d8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888055912280 RCX: ffffffff8940a625 RDX: ffff8880352e0000 RSI: ffffffff8940ab8c RDI: 0000000000000005 RBP: ffff88805591234c R08: 0000000000000005 R09: 0000000000000000 R10: 0000000095c02e70 R11: ffff8880352e0b30 R12: 0000000095c02e70 R13: 0000000000000820 R14: 0000000095c03530 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880d68f1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f34281b0d58 CR3: 00000000251f2000 CR4: 0000000000352ef0 Call Trace: ipgre_header+0xdc/0x610 net/ipv4/ip_gre.c:900 dev_hard_header include/linux/netdevice.h:3436 [inline] neigh_connected_output+0x366/0x620 net/core/neighbour.c:1618 neigh_output include/net/neighbour.h:556 [inline] ip6_finish_output2+0xad1/0x1cf0 net/ipv6/ip6_output.c:136 __ip6_finish_output+0x3cd/0x1010 net/ipv6/ip6_output.c:209 ip6_finish_output net/ipv6/ip6_output.c:220 [inline] NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip6_output+0x253/0x710 net/ipv6/ip6_output.c:247 dst_output+0xa8/0x4b0 include/net/dst.h:464 NF_HOOK include/linux/netfilter.h:318 [inline] NF_HOOK include/linux/netfilter.h:312 [inline] mld_sendpack+0xa30/0xed0 net/ipv6/mcast.c:1855 mld_send_report+0xd7/0x3c0 net/ipv6/mcast.c:2061 ipv6_mc_rejoin_groups net/ipv6/mcast.c:2868 [inline] ipv6_mc_netdev_event+0x2b8/0x3a0 net/ipv6/mcast.c:2883 notifier_call_chain+0xbc/0x3e0 kernel/notifier.c:85 call_netdevice_notifiers_info+0xbe/0x110 net/core/dev.c:2243 call_netdevice_notifiers_extack net/core/dev.c:2281 [inline] call_netdevice_notifiers+0x7c/0xb0 net/core/dev.c:2295 bond_resend_igmp_join_requests_delayed+0x5e/0x170 drivers/net/bonding/bond_main.c:893 process_one_work+0x9ba/0x1b20 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3421 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pskb_expand_head+0x62d/0xf80 net/core/skbuff.c:2273 Code: b6 04 02 84 c0 74 08 3c 03 0f 8e af 08 00 00 8b 44 24 28 8b 74 24 2c 29 f0 01 83 e0 00 00 00 e9 72 ff ff ff e8 04 54 7e f8 90 <0f> 0b e8 fc 53 7e f8 90 0f 0b e8 f4 53 7e f8 41 81 cd 00 00 02 00 RSP: 0018:ffffc900043475d8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888055912280 RCX: ffffffff8940a625 RDX: ffff8880352e0000 RSI: ffffffff8940ab8c RDI: 0000000000000005 RBP: ffff88805591234c R08: 0000000000000005 R09: 0000000000000000 R10: 0000000095c02e70 R11: ffff8880352e0b30 R12: 0000000095c02e70 R13: 0000000000000820 R14: 0000000095c03530 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880d68f1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f34281b0d58 CR3: 000000000e184000 CR4: 0000000000352ef0