usb 5-1: USB disconnect, device number 2 usb 5-1: new high-speed USB device number 3 using dummy_hcd usb 5-1: Using ep0 maxpacket: 8 usb 5-1: config index 0 descriptor too short (expected 92, got 18) usb 5-1: config 1 has 1 interface, different from the descriptor's value: 2 usb 5-1: config 1 interface 0 altsetting 0 has 0 endpoint descriptors, different from the interface descriptor's value: 1 usb 5-1: New USB device found, idVendor=0225, idProduct=0000, bcdDevice= 0.00 usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 hub 5-1:1.0: bad descriptor, ignoring hub hub 5-1:1.0: probe with driver hub failed with error -5 cdc_wdm 5-1:1.0: probe with driver cdc_wdm failed with error -22 skbuff: skb_under_panic: text:ffffffff8a27e968 len:136 put:40 head:ffff888045b8c000 data:ffff888045b8bfe8 tail:0x70 end:0x6c0 dev:team0 ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:213! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 4763 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: mld mld_ifc_work RIP: 0010:skb_panic+0x157/0x160 net/core/skbuff.c:213 Code: c7 60 ac 6f 8c 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 55 41 57 41 56 e8 ce 6a f5 ff 48 83 c4 20 90 <0f> 0b cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90002647400 EFLAGS: 00010286 RAX: 0000000000000087 RBX: dffffc0000000000 RCX: fc946373200f1900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 00000000000006c0 R08: ffffc90002647167 R09: 1ffff920004c8e2c R10: dffffc0000000000 R11: fffff520004c8e2d R12: ffff888037d4a8d0 R13: ffff888045b8c000 R14: ffff888045b8bfe8 R15: 0000000000000070 FS: 0000000000000000(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000011dd0000 CR4: 0000000000352ef0 Call Trace: skb_under_panic net/core/skbuff.c:223 [inline] skb_push+0xc3/0xe0 net/core/skbuff.c:2641 ip6gre_header+0xc8/0x790 net/ipv6/ip6_gre.c:1371 dev_hard_header include/linux/netdevice.h:3436 [inline] neigh_connected_output+0x286/0x460 net/core/neighbour.c:1618 __ip6_finish_output net/ipv6/ip6_output.c:-1 [inline] ip6_finish_output+0x234/0x7d0 net/ipv6/ip6_output.c:220 NF_HOOK_COND include/linux/netfilter.h:307 [inline] ip6_output+0x340/0x550 net/ipv6/ip6_output.c:247 NF_HOOK+0x9e/0x380 include/linux/netfilter.h:318 mld_sendpack+0x8d4/0xe60 net/ipv6/mcast.c:1855 mld_send_cr net/ipv6/mcast.c:2154 [inline] mld_ifc_work+0x83e/0xd60 net/ipv6/mcast.c:2693 process_one_work kernel/workqueue.c:3257 [inline] process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x510/0xa50 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:skb_panic+0x157/0x160 net/core/skbuff.c:213 Code: c7 60 ac 6f 8c 48 8b 74 24 08 48 8b 54 24 10 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 55 41 57 41 56 e8 ce 6a f5 ff 48 83 c4 20 90 <0f> 0b cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90002647400 EFLAGS: 00010286 RAX: 0000000000000087 RBX: dffffc0000000000 RCX: fc946373200f1900 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 00000000000006c0 R08: ffffc90002647167 R09: 1ffff920004c8e2c R10: dffffc0000000000 R11: fffff520004c8e2d R12: ffff888037d4a8d0 R13: ffff888045b8c000 R14: ffff888045b8bfe8 R15: 0000000000000070 FS: 0000000000000000(0000) GS:ffff88808d416000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000117e7000 CR4: 0000000000352ef0