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 ffff888218c33862 by task kworker/1:3/535

CPU: 1 PID: 535 Comm: kworker/1:3 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 5582:
 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]
 ext4_htree_store_dirent+0x8d/0x610 fs/ext4/dir.c:450
 htree_dirblock_to_tree+0x293/0x5e0 fs/ext4/namei.c:1021
 ext4_htree_fill_tree+0x229/0x990 fs/ext4/namei.c:1098
 ext4_dx_readdir fs/ext4/dir.c:574 [inline]
 ext4_readdir+0x14ae/0x2d10 fs/ext4/dir.c:121
 iterate_dir+0x481/0x5e0 fs/readdir.c:51
 __do_sys_getdents fs/readdir.c:231 [inline]
 __se_sys_getdents fs/readdir.c:212 [inline]
 __x64_sys_getdents+0x1e2/0x370 fs/readdir.c:212
 do_syscall_64+0xcf/0x4f0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 5582:
 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
 free_rb_tree_fname+0x84/0xe0 fs/ext4/dir.c:402
 ext4_htree_free_dir_info fs/ext4/dir.c:424 [inline]
 ext4_release_dir+0x46/0x60 fs/ext4/dir.c:622
 __fput+0x2df/0x8c0 fs/file_table.c:278
 task_work_run+0x149/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop+0x243/0x270 arch/x86/entry/common.c:166
 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:268 [inline]
 do_syscall_64+0x40c/0x4f0 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff888218c33840
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 34 bytes inside of
 64-byte region [ffff888218c33840, ffff888218c33880)
The buggy address belongs to the page:
page:ffffea0008630cc0 count:1 mapcount:0 mapping:ffff88812c3f5600 index:0x0
flags: 0x57ff00000000200(slab)
raw: 057ff00000000200 ffffea000862a700 0000002a00000002 ffff88812c3f5600
raw: 0000000000000000 00000000802a002a 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888218c33700: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc
 ffff888218c33780: fb fb fb fb fb fb fb fb fc fc fc fc 00 00 00 00
>ffff888218c33800: 00 00 fc fc fc fc fc fc fb fb fb fb fb fb fb fb
                                                       ^
 ffff888218c33880: fc fc fc fc fb fb fb fb fb fb fb fb fc fc fc fc
 ffff888218c33900: fb fb fb fb fb fb fb fb fc fc fc fc fb fb fb fb
==================================================================