usb 1-1: config 0 has no interface number 0 usb 1-1: New USB device found, idVendor=04fa, idProduct=2490, bcdDevice=f5.2f usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? ================================================================== BUG: KASAN: use-after-free in ds_probe+0x604/0x760 drivers/w1/masters/ds2490.c:1019 Read of size 1 at addr ffff88821b3f48c2 by task kworker/0:1/12 CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.1.0-rc4-319354-g9a33b36 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xe8/0x16e lib/dump_stack.c:113 print_address_description+0x6c/0x236 mm/kasan/report.c:187 kasan_report.cold+0x1a/0x3c mm/kasan/report.c:317 ds_probe+0x604/0x760 drivers/w1/masters/ds2490.c:1019 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Allocated by task 4976: set_track mm/kasan/common.c:87 [inline] __kasan_kmalloc mm/kasan/common.c:497 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:470 kmalloc include/linux/slab.h:552 [inline] kzalloc include/linux/slab.h:742 [inline] kobject_get_path+0xb7/0x200 lib/kobject.c:171 kobject_uevent_env+0x23f/0x13d0 lib/kobject_uevent.c:521 netdev_queue_add_kobject net/core/net-sysfs.c:1478 [inline] netdev_queue_update_kobjects+0x306/0x3e0 net/core/net-sysfs.c:1492 register_queue_kobjects net/core/net-sysfs.c:1534 [inline] netdev_register_kobject+0x2b1/0x440 net/core/net-sysfs.c:1752 register_netdevice+0x803/0xf20 net/core/dev.c:8713 register_netdev+0x32/0x50 net/core/dev.c:8831 vti6_init_net+0x50a/0x810 net/ipv6/ip6_vti.c:1126 ops_init+0xb7/0x410 net/core/net_namespace.c:129 setup_net+0x2c7/0x700 net/core/net_namespace.c:315 copy_net_ns+0x1de/0x340 net/core/net_namespace.c:438 create_new_namespaces+0x400/0x7b0 kernel/nsproxy.c:107 unshare_nsproxy_namespaces+0xc2/0x200 kernel/nsproxy.c:206 ksys_unshare+0x43e/0x8a0 kernel/fork.c:2549 __do_sys_unshare kernel/fork.c:2617 [inline] __se_sys_unshare kernel/fork.c:2615 [inline] __x64_sys_unshare+0x32/0x40 kernel/fork.c:2615 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 4976: set_track mm/kasan/common.c:87 [inline] __kasan_slab_free+0x130/0x180 mm/kasan/common.c:459 slab_free_hook mm/slub.c:1429 [inline] slab_free_freelist_hook+0x5e/0x140 mm/slub.c:1456 slab_free mm/slub.c:3003 [inline] kfree+0xce/0x290 mm/slub.c:3958 kobject_uevent_env+0x287/0x13d0 lib/kobject_uevent.c:621 netdev_queue_add_kobject net/core/net-sysfs.c:1478 [inline] netdev_queue_update_kobjects+0x306/0x3e0 net/core/net-sysfs.c:1492 register_queue_kobjects net/core/net-sysfs.c:1534 [inline] netdev_register_kobject+0x2b1/0x440 net/core/net-sysfs.c:1752 register_netdevice+0x803/0xf20 net/core/dev.c:8713 register_netdev+0x32/0x50 net/core/dev.c:8831 vti6_init_net+0x50a/0x810 net/ipv6/ip6_vti.c:1126 ops_init+0xb7/0x410 net/core/net_namespace.c:129 setup_net+0x2c7/0x700 net/core/net_namespace.c:315 copy_net_ns+0x1de/0x340 net/core/net_namespace.c:438 create_new_namespaces+0x400/0x7b0 kernel/nsproxy.c:107 unshare_nsproxy_namespaces+0xc2/0x200 kernel/nsproxy.c:206 ksys_unshare+0x43e/0x8a0 kernel/fork.c:2549 __do_sys_unshare kernel/fork.c:2617 [inline] __se_sys_unshare kernel/fork.c:2615 [inline] __x64_sys_unshare+0x32/0x40 kernel/fork.c:2615 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff88821b3f48a0 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 34 bytes inside of 64-byte region [ffff88821b3f48a0, ffff88821b3f48e0) The buggy address belongs to the page: page:ffffea00086cfd00 count:1 mapcount:0 mapping:ffff88812c3f5600 index:0x0 flags: 0x57ff00000000200(slab) raw: 057ff00000000200 dead000000000100 dead000000000200 ffff88812c3f5600 raw: 0000000000000000 00000000002a002a 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88821b3f4780: fb fb fb fb fb fb fb fb fc fc fc fc fb fb fb fb ffff88821b3f4800: fb fb fb fb fc fc fc fc 00 00 00 00 00 00 fc fc >ffff88821b3f4880: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff88821b3f4900: 00 00 00 00 00 00 fc fc fc fc fc fc 00 00 00 00 ffff88821b3f4980: 00 00 00 fc fc fc fc fc 00 00 00 00 00 00 fc fc ==================================================================