vhci_hcd: invalid port number 76
==================================================================
BUG: KASAN: slab-out-of-bounds in vhci_hub_control+0x1b6d/0x1be0 drivers/usb/usbip/vhci_hcd.c:441
Read of size 4 at addr ffff8801cddd44bc by task syz-executor2/30568

CPU: 1 PID: 30568 Comm: syz-executor2 Not tainted 4.19.0-rc8+ #285
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c4/0x2b4 lib/dump_stack.c:113
 print_address_description.cold.8+0x9/0x1ff mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.9+0x242/0x309 mm/kasan/report.c:412
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432
 vhci_hub_control+0x1b6d/0x1be0 drivers/usb/usbip/vhci_hcd.c:441
 rh_call_control drivers/usb/core/hcd.c:679 [inline]
 rh_urb_enqueue drivers/usb/core/hcd.c:838 [inline]
 usb_hcd_submit_urb+0x17bb/0x20a0 drivers/usb/core/hcd.c:1651
 usb_submit_urb+0x893/0x14e0 drivers/usb/core/urb.c:570
 usb_start_wait_urb+0x13d/0x370 drivers/usb/core/message.c:57
 usb_internal_control_msg drivers/usb/core/message.c:101 [inline]
 usb_control_msg+0x332/0x4e0 drivers/usb/core/message.c:152
 proc_control+0x99b/0xef0 drivers/usb/core/devio.c:1106
 usbdev_do_ioctl+0x1eb8/0x3b50 drivers/usb/core/devio.c:2412
 usbdev_ioctl+0x25/0x30 drivers/usb/core/devio.c:2569
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:685
 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:702
 __do_sys_ioctl fs/ioctl.c:709 [inline]
 __se_sys_ioctl fs/ioctl.c:707 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:707
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457569
Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007facae617c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569
RDX: 0000000020000140 RSI: 00000000c0185500 RDI: 0000000000000003
RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007facae6186d4
R13: 00000000004bf6ac R14: 00000000004cf598 R15: 00000000ffffffff

Allocated by task 30224:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553
 __do_kmalloc_node mm/slab.c:3682 [inline]
 __kmalloc_node_track_caller+0x47/0x70 mm/slab.c:3696
 __kmalloc_reserve.isra.39+0x41/0xe0 net/core/skbuff.c:137
 pskb_expand_head+0x230/0x10f0 net/core/skbuff.c:1460
 netlink_trim+0x2ea/0x380 net/netlink/af_netlink.c:1299
 netlink_broadcast_filtered+0xf4/0x1680 net/netlink/af_netlink.c:1496
 netlink_broadcast net/netlink/af_netlink.c:1541 [inline]
 nlmsg_multicast include/net/netlink.h:591 [inline]
 nlmsg_notify+0xa0/0x1a0 net/netlink/af_netlink.c:2497
 rtnl_notify net/core/rtnetlink.c:736 [inline]
 rtmsg_ifinfo_send net/core/rtnetlink.c:3342 [inline]
 rtmsg_ifinfo_event.part.31+0xb2/0xe0 net/core/rtnetlink.c:3357
 rtmsg_ifinfo_event net/core/rtnetlink.c:3351 [inline]
 rtnetlink_event+0x144/0x170 net/core/rtnetlink.c:4781
 notifier_call_chain+0x17e/0x380 kernel/notifier.c:93
 __raw_notifier_call_chain kernel/notifier.c:394 [inline]
 raw_notifier_call_chain+0x2d/0x40 kernel/notifier.c:401
 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1733
 call_netdevice_notifiers net/core/dev.c:1751 [inline]
 dev_set_mac_address+0x293/0x3b0 net/core/dev.c:7692
 do_setlink+0x7c7/0x3f20 net/core/rtnetlink.c:2379
 rtnl_newlink+0x136f/0x1d40 net/core/rtnetlink.c:3043
 rtnetlink_rcv_msg+0x46a/0xc20 net/core/rtnetlink.c:4730
 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4748
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:631
 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116
 __sys_sendmsg+0x11d/0x280 net/socket.c:2154
 __do_sys_sendmsg net/socket.c:2163 [inline]
 __se_sys_sendmsg net/socket.c:2161 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 30224:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521
 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
 __cache_free mm/slab.c:3498 [inline]
 kfree+0xcf/0x230 mm/slab.c:3813
 skb_free_head+0x99/0xc0 net/core/skbuff.c:550
 skb_release_data+0x6a4/0x880 net/core/skbuff.c:570
 skb_release_all+0x4a/0x60 net/core/skbuff.c:627
 __kfree_skb net/core/skbuff.c:641 [inline]
 consume_skb+0x1ae/0x570 net/core/skbuff.c:701
 netlink_broadcast_filtered+0x6e6/0x1680 net/netlink/af_netlink.c:1519
 netlink_broadcast net/netlink/af_netlink.c:1541 [inline]
 nlmsg_multicast include/net/netlink.h:591 [inline]
 nlmsg_notify+0xa0/0x1a0 net/netlink/af_netlink.c:2497
 rtnl_notify net/core/rtnetlink.c:736 [inline]
 rtmsg_ifinfo_send net/core/rtnetlink.c:3342 [inline]
 rtmsg_ifinfo_event.part.31+0xb2/0xe0 net/core/rtnetlink.c:3357
 rtmsg_ifinfo_event net/core/rtnetlink.c:3351 [inline]
 rtnetlink_event+0x144/0x170 net/core/rtnetlink.c:4781
 notifier_call_chain+0x17e/0x380 kernel/notifier.c:93
 __raw_notifier_call_chain kernel/notifier.c:394 [inline]
 raw_notifier_call_chain+0x2d/0x40 kernel/notifier.c:401
 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1733
 call_netdevice_notifiers net/core/dev.c:1751 [inline]
 dev_set_mac_address+0x293/0x3b0 net/core/dev.c:7692
 do_setlink+0x7c7/0x3f20 net/core/rtnetlink.c:2379
 rtnl_newlink+0x136f/0x1d40 net/core/rtnetlink.c:3043
 rtnetlink_rcv_msg+0x46a/0xc20 net/core/rtnetlink.c:4730
 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4748
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1908
 sock_sendmsg_nosec net/socket.c:621 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:631
 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116
 __sys_sendmsg+0x11d/0x280 net/socket.c:2154
 __do_sys_sendmsg net/socket.c:2163 [inline]
 __se_sys_sendmsg net/socket.c:2161 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161
 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8801cddd4580
 which belongs to the cache kmalloc-2048 of size 2048
The buggy address is located 196 bytes to the left of
 2048-byte region [ffff8801cddd4580, ffff8801cddd4d80)
The buggy address belongs to the page:
page:ffffea0007377500 count:1 mapcount:0 mapping:ffff8801da800c40 index:0x0 compound_mapcount: 0
flags: 0x2fffc0000008100(slab|head)
raw: 02fffc0000008100 ffffea0006329788 ffffea00063e6d08 ffff8801da800c40
raw: 0000000000000000 ffff8801cddd4580 0000000100000003 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801cddd4380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8801cddd4400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8801cddd4480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                        ^
 ffff8801cddd4500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8801cddd4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================