technisat-usb2: i2c-error: out failed 53 = -22
rc rc2: lirc_dev: driver technisat-usb2 registered at minor = 2, raw IR receiver, no transmitter
dvb-usb: MAC address reading failed.
dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
==================================================================
BUG: KASAN: slab-out-of-bounds in technisat_usb2_get_ir drivers/media/usb/dvb-usb/technisat-usb2.c:664 [inline]
BUG: KASAN: slab-out-of-bounds in technisat_usb2_rc_query+0x5fa/0x660 drivers/media/usb/dvb-usb/technisat-usb2.c:679
Read of size 1 at addr ffff8880919585e8 by task kworker/0:2/534

CPU: 0 PID: 534 Comm: kworker/0:2 Not tainted 5.2.0-rc6-g7829a89 #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events dvb_usb_read_remote_control
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:188
 __kasan_report.cold+0x1a/0x39 mm/kasan/report.c:317
 kasan_report+0xe/0x20 mm/kasan/common.c:614
 technisat_usb2_get_ir drivers/media/usb/dvb-usb/technisat-usb2.c:664 [inline]
 technisat_usb2_rc_query+0x5fa/0x660 drivers/media/usb/dvb-usb/technisat-usb2.c:679
 dvb_usb_read_remote_control drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:115 [inline]
 dvb_usb_read_remote_control+0xe5/0x1c0 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:92
 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269
 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415
 kthread+0x315/0x420 kernel/kthread.c:255
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352

Allocated by task 534:
 save_stack+0x1b/0x80 mm/kasan/common.c:71
 set_track mm/kasan/common.c:79 [inline]
 __kasan_kmalloc mm/kasan/common.c:489 [inline]
 __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:462
 dvb_usb_init drivers/media/usb/dvb-usb/dvb-usb-init.c:149 [inline]
 dvb_usb_device_init.cold+0x317/0x10b3 drivers/media/usb/dvb-usb/dvb-usb-init.c:274
 technisat_usb2_probe+0x82/0x2d0 drivers/media/usb/dvb-usb/technisat-usb2.c:763
 usb_probe_interface+0x31b/0x810 drivers/usb/core/driver.c:361
 really_probe+0x2cb/0xaf0 drivers/base/dd.c:509
 driver_probe_device+0x228/0x360 drivers/base/dd.c:670
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:777
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x21c/0x390 drivers/base/dd.c:843
 bus_probe_device+0x1eb/0x2a0 drivers/base/bus.c:514
 device_add+0xac4/0x16d0 drivers/base/core.c:2111
 usb_set_configuration+0xdfb/0x1750 drivers/usb/core/message.c:2023
 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210
 usb_probe_device+0xba/0x150 drivers/usb/core/driver.c:266
 really_probe+0x2cb/0xaf0 drivers/base/dd.c:509
 driver_probe_device+0x228/0x360 drivers/base/dd.c:670
 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:777
 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454
 __device_attach+0x21c/0x390 drivers/base/dd.c:843
 bus_probe_device+0x1eb/0x2a0 drivers/base/bus.c:514
 device_add+0xac4/0x16d0 drivers/base/core.c:2111
 usb_new_device.cold+0x540/0xcb7 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+0x315/0x420 kernel/kthread.c:255
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff888091958500
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 232 bytes inside of
 256-byte region [ffff888091958500, ffff888091958600)
The buggy address belongs to the page:
page:ffffea0002465600 refcount:1 mapcount:0 mapping:ffff8880a8c02e00 index:0x0
flags: 0xfff00000000200(slab)
raw: 00fff00000000200 dead000000000100 dead000000000200 ffff8880a8c02e00
raw: 0000000000000000 00000000000c000c 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888091958480: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888091958500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888091958580: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
                                                          ^
 ffff888091958600: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
 ffff888091958680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================