hid-generic 0000:0000:0000.0013: unknown main item tag 0x0 hid-generic 0000:0000:0000.0013: unknown main item tag 0x0 vhci_hcd: invalid port number 76 hid-generic 0000:0000:0000.0013: unknown main item tag 0x0 ================================================================== 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 ffff8801ce24443c by task syz-executor3/9542 CPU: 1 PID: 9542 Comm: syz-executor3 Not tainted 4.19.0-rc6+ #265 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: 0033:0x457579 Code: 1d b4 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f345bfa1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 0000000020000040 RSI: 00000000c0185500 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f345bfa26d4 R13: 00000000004bf6c0 R14: 00000000004cf598 R15: 00000000ffffffff Allocated by task 5614: 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 mm/slab.c:3718 [inline] __kmalloc_track_caller+0x14a/0x750 mm/slab.c:3733 kvasprintf+0xb5/0x150 lib/kasprintf.c:25 kvasprintf_const+0x67/0x190 lib/kasprintf.c:49 kobject_set_name_vargs+0x5b/0x150 lib/kobject.c:281 kobject_add_varg lib/kobject.c:376 [inline] kobject_init_and_add+0xbc/0x140 lib/kobject.c:453 rx_queue_add_kobject net/core/net-sysfs.c:932 [inline] net_rx_queue_update_kobjects+0x246/0x630 net/core/net-sysfs.c:964 register_queue_kobjects net/core/net-sysfs.c:1535 [inline] netdev_register_kobject+0x27f/0x3f0 net/core/net-sysfs.c:1755 register_netdevice+0x99a/0x10f0 net/core/dev.c:8479 bond_newlink+0x49/0xa0 drivers/net/bonding/bond_netlink.c:453 rtnl_newlink+0xec6/0x1d40 net/core/rtnetlink.c:3103 rtnetlink_rcv_msg+0x46a/0xc20 net/core/rtnetlink.c:4715 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2454 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4733 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 14: 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 usb_control_msg+0x3d6/0x4e0 drivers/usb/core/message.c:158 get_port_status drivers/usb/core/hub.c:566 [inline] hub_ext_port_status+0x122/0x4a0 drivers/usb/core/hub.c:583 hub_port_status drivers/usb/core/hub.c:605 [inline] hub_activate+0x5a7/0x1940 drivers/usb/core/hub.c:1083 hub_init_func2+0x1e/0x30 drivers/usb/core/hub.c:1239 process_one_work+0xc90/0x1b90 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x420 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 The buggy address belongs to the object at ffff8801ce244400 which belongs to the cache kmalloc-32 of size 32 The buggy address is located 28 bytes to the right of 32-byte region [ffff8801ce244400, ffff8801ce244420) The buggy address belongs to the page: page:ffffea0007389100 count:1 mapcount:0 mapping:ffff8801da8001c0 index:0xffff8801ce244fc1 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffffea000739ee88 ffffea0007350588 ffff8801da8001c0 raw: ffff8801ce244fc1 ffff8801ce244000 000000010000003f 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801ce244300: 05 fc fc fc fc fc fc fc 05 fc fc fc fc fc fc fc ffff8801ce244380: 05 fc fc fc fc fc fc fc 05 fc fc fc fc fc fc fc >ffff8801ce244400: 05 fc fc fc fc fc fc fc 06 fc fc fc fc fc fc fc ^ ffff8801ce244480: 06 fc fc fc fc fc fc fc 00 fc fc fc fc fc fc fc ffff8801ce244500: 00 fc fc fc fc fc fc fc 00 fc fc fc fc fc fc fc 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