================================================================== BUG: KASAN: null-ptr-deref in memset include/linux/string.h:344 [inline] BUG: KASAN: null-ptr-deref in submit_audio_out_urb+0x919/0x1780 sound/usb/line6/playback.c:242 Write of size 20 at addr 0000000000000010 by task kworker/0:3/2765 CPU: 0 PID: 2765 Comm: kworker/0:3 Not tainted 5.2.0-rc6+ #15 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events line6_startup_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 __kasan_report.cold+0x5/0x32 mm/kasan/report.c:321 kasan_report+0xe/0x20 mm/kasan/common.c:614 memset+0x20/0x40 mm/kasan/common.c:107 memset include/linux/string.h:344 [inline] submit_audio_out_urb+0x919/0x1780 sound/usb/line6/playback.c:242 line6_submit_audio_out_all_urbs+0xc9/0x120 sound/usb/line6/playback.c:291 line6_stream_start+0x156/0x1f0 sound/usb/line6/pcm.c:195 line6_pcm_acquire+0x134/0x210 sound/usb/line6/pcm.c:318 line6_startup_work+0x42/0x50 sound/usb/line6/driver.c:725 process_one_work+0x905/0x1570 kernel/workqueue.c:2269 worker_thread+0x96/0xe20 kernel/workqueue.c:2415 kthread+0x30b/0x410 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 ================================================================== Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 2765 Comm: kworker/0:3 Tainted: G B 5.2.0-rc6+ #15 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events line6_startup_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 panic+0x292/0x6c9 kernel/panic.c:219 end_report+0x43/0x49 mm/kasan/report.c:95 __kasan_report.cold+0xd/0x32 mm/kasan/report.c:324 kasan_report+0xe/0x20 mm/kasan/common.c:614 memset+0x20/0x40 mm/kasan/common.c:107 memset include/linux/string.h:344 [inline] submit_audio_out_urb+0x919/0x1780 sound/usb/line6/playback.c:242 line6_submit_audio_out_all_urbs+0xc9/0x120 sound/usb/line6/playback.c:291 line6_stream_start+0x156/0x1f0 sound/usb/line6/pcm.c:195 line6_pcm_acquire+0x134/0x210 sound/usb/line6/pcm.c:318 line6_startup_work+0x42/0x50 sound/usb/line6/driver.c:725 process_one_work+0x905/0x1570 kernel/workqueue.c:2269 worker_thread+0x96/0xe20 kernel/workqueue.c:2415 kthread+0x30b/0x410 kernel/kthread.c:255 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..