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 ffff888218885442 by task kworker/1:1/21 CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.1.0-rc5-319617-gd34f951 #4 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+0x1398/0x3b00 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 1: 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:547 [inline] __kthread_create_on_node+0xd7/0x410 kernel/kthread.c:298 kthread_create_on_node+0xc0/0x100 kernel/kthread.c:386 cryptomgr_schedule_test crypto/algboss.c:255 [inline] cryptomgr_notify+0x583/0xbd0 crypto/algboss.c:276 notifier_call_chain+0xca/0x240 kernel/notifier.c:93 __blocking_notifier_call_chain kernel/notifier.c:317 [inline] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] blocking_notifier_call_chain kernel/notifier.c:328 [inline] blocking_notifier_call_chain+0x8a/0xb0 kernel/notifier.c:325 crypto_probing_notify+0x27/0x80 crypto/api.c:254 crypto_wait_for_test+0x42/0xe0 crypto/algapi.c:368 crypto_register_alg crypto/algapi.c:401 [inline] crypto_register_alg+0xab/0xd0 crypto/algapi.c:384 crypto_register_rng crypto/rng.c:193 [inline] crypto_register_rngs+0x100/0x1b0 crypto/rng.c:208 do_one_initcall+0xde/0x597 init/main.c:901 do_initcall_level init/main.c:969 [inline] do_initcalls init/main.c:977 [inline] do_basic_setup init/main.c:995 [inline] kernel_init_freeable+0x4da/0x5c7 init/main.c:1150 kernel_init+0x12/0x1ca init/main.c:1068 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Freed by task 1: 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/0x280 mm/slub.c:3958 __kthread_create_on_node+0x30b/0x410 kernel/kthread.c:350 kthread_create_on_node+0xc0/0x100 kernel/kthread.c:386 cryptomgr_schedule_test crypto/algboss.c:255 [inline] cryptomgr_notify+0x583/0xbd0 crypto/algboss.c:276 notifier_call_chain+0xca/0x240 kernel/notifier.c:93 __blocking_notifier_call_chain kernel/notifier.c:317 [inline] __blocking_notifier_call_chain kernel/notifier.c:304 [inline] blocking_notifier_call_chain kernel/notifier.c:328 [inline] blocking_notifier_call_chain+0x8a/0xb0 kernel/notifier.c:325 crypto_probing_notify+0x27/0x80 crypto/api.c:254 crypto_wait_for_test+0x42/0xe0 crypto/algapi.c:368 crypto_register_alg crypto/algapi.c:401 [inline] crypto_register_alg+0xab/0xd0 crypto/algapi.c:384 crypto_register_rng crypto/rng.c:193 [inline] crypto_register_rngs+0x100/0x1b0 crypto/rng.c:208 do_one_initcall+0xde/0x597 init/main.c:901 do_initcall_level init/main.c:969 [inline] do_initcalls init/main.c:977 [inline] do_basic_setup init/main.c:995 [inline] kernel_init_freeable+0x4da/0x5c7 init/main.c:1150 kernel_init+0x12/0x1ca init/main.c:1068 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 The buggy address belongs to the object at ffff888218885420 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 34 bytes inside of 64-byte region [ffff888218885420, ffff888218885460) The buggy address belongs to the page: page:ffffea0008622140 count:1 mapcount:0 mapping:ffff88812c3f5600 index:0x0 flags: 0x57ff00000000200(slab) raw: 057ff00000000200 dead000000000100 dead000000000200 ffff88812c3f5600 raw: 0000000000000000 00000000802a002a 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888218885300: fb fb fb fb fb fb fb fb fc fc fc fc 00 00 00 00 ffff888218885380: 00 00 00 00 fc fc fc fc 00 00 00 00 00 00 fc fc >ffff888218885400: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff888218885480: fb fb fb fb fb fb fb fb fc fc fc fc fb fb fb fb ffff888218885500: fb fb fb fb fc fc fc fc 00 00 00 00 00 00 fc fc 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