usb 1-1: config 0 has no interface number 0 usb 1-1: New USB device found, idVendor=04fa, idProduct=2490, bcdDevice=74.f9 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 ffff8880a7941322 by task kworker/1:0/17 CPU: 1 PID: 17 Comm: kworker/1:0 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 3906: 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] lsm_task_alloc security/security.c:544 [inline] security_task_alloc+0x113/0x180 security/security.c:1456 copy_process.part.0+0x1c62/0x76b0 kernel/fork.c:1898 copy_process kernel/fork.c:1709 [inline] _do_fork+0x234/0xed0 kernel/fork.c:2226 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 3929: 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 security_task_free+0x9a/0xf0 security/security.c:1470 __put_task_struct+0xec/0x4d0 kernel/fork.c:724 put_task_struct include/linux/sched/task.h:98 [inline] delayed_put_task_struct+0x189/0x290 kernel/exit.c:181 __rcu_reclaim kernel/rcu/rcu.h:227 [inline] rcu_do_batch kernel/rcu/tree.c:2475 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2788 [inline] rcu_core+0x83b/0x1a80 kernel/rcu/tree.c:2769 __do_softirq+0x22a/0x8cd kernel/softirq.c:293 The buggy address belongs to the object at ffff8880a7941300 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 34 bytes inside of 64-byte region [ffff8880a7941300, ffff8880a7941340) The buggy address belongs to the page: page:ffffea00029e5040 count:1 mapcount:0 mapping:ffff88812c3f5600 index:0x0 flags: 0xfff00000000200(slab) raw: 00fff00000000200 ffffea000257ff80 0000000500000005 ffff88812c3f5600 raw: 0000000000000000 00000000002a002a 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a7941200: fb fb fb fb fc fc fc fc fb fb fb fb fb fb fb fb ffff8880a7941280: fc fc fc fc 00 00 00 00 00 00 fc fc fc fc fc fc >ffff8880a7941300: fb fb fb fb fb fb fb fb fc fc fc fc 00 00 00 00 ^ ffff8880a7941380: 00 00 00 00 fc fc fc fc fb fb fb fb fb fb fb fb ffff8880a7941400: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc ==================================================================