BUG: sleeping function called from invalid context at kernel/locking/mutex.c:908
in_atomic(): 1, irqs_disabled(): 0, pid: 4639, name: syz-executor.1
1 lock held by syz-executor.1/4639:
 #0: 00000000a33dc857 ((&toneport->timer)){+.-.}, at: lockdep_copy_map include/linux/lockdep.h:170 [inline]
 #0: 00000000a33dc857 ((&toneport->timer)){+.-.}, at: call_timer_fn+0xc9/0x5e0 kernel/time/timer.c:1315
CPU: 1 PID: 4639 Comm: syz-executor.1 Not tainted 5.1.0-rc3+ #8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xca/0x13e lib/dump_stack.c:113
 ___might_sleep.cold+0x10f/0x129 kernel/sched/core.c:6190
 __mutex_lock_common kernel/locking/mutex.c:908 [inline]
 __mutex_lock+0xc8/0x12b0 kernel/locking/mutex.c:1072
 line6_pcm_acquire+0x30/0x210 sound/usb/line6/pcm.c:311
 call_timer_fn+0x15c/0x5e0 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x586/0x1400 kernel/time/timer.c:1694
 __do_softirq+0x21f/0x8bc kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:374 [inline]
 irq_exit+0x17c/0x1a0 kernel/softirq.c:414
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0xf1/0x490 arch/x86/kernel/apic/apic.c:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:fsnotify+0x1e/0xb20 fs/notify/fsnotify.c:329
Code: ff e8 06 50 ec ff e9 98 fe ff ff 90 41 57 41 56 49 89 fe 41 55 41 54 55 53 48 bb 00 00 00 00 00 fc ff df 48 81 ec d0 00 00 00 <48> 8d 44 24 50 48 89 7c 24 20 48 c1 e8 03 89 74 24 1c 48 89 44 24
RSP: 0018:ffff8881b1dafd38 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: ffff8881cd8b9800 RBX: dffffc0000000000 RCX: 0000000000000001
RDX: ffff8881cc6b0f10 RSI: 0000000000000001 RDI: ffff8881c8830810
RBP: ffff8881cc6b0f00 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed103b665737 R11: ffff8881db32b9bb R12: ffff8881c8830810
R13: ffff8881cc6b0f10 R14: ffff8881c8830810 R15: 0000000000000001
 fsnotify_path include/linux/fsnotify.h:54 [inline]
 fsnotify_path include/linux/fsnotify.h:47 [inline]
 fsnotify_access include/linux/fsnotify.h:247 [inline]
 vfs_read+0x35e/0x3d0 fs/read_write.c:454
 ksys_read+0xcc/0x1d0 fs/read_write.c:578
 do_syscall_64+0xbd/0x500 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x412ae0
Code: 01 f0 ff ff 0f 83 70 1b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d ad 37 64 00 00 75 14 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 44 1b 00 00 c3 48 83 ec 08 e8 6a fc ff ff
RSP: 002b:00007ffeb0dce578 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000412ae0
RDX: 0000000000000038 RSI: 0000000000738020 RDI: 00000000000000f9
RBP: 00000000000004b4 R08: 0000000000006000 R09: 0000000000004000
R10: 00007ffeb0dcdf10 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb0dce5b0 R14: 0000000000118401 R15: 00007ffeb0dce5c0
==================================================================
BUG: KASAN: null-ptr-deref in memset include/linux/string.h:337 [inline]
BUG: KASAN: null-ptr-deref in submit_audio_out_urb+0x919/0x1780 sound/usb/line6/playback.c:246
Write of size 20 at addr 0000000000000010 by task syz-executor.1/4639

CPU: 1 PID: 4639 Comm: syz-executor.1 Tainted: G        W         5.1.0-rc3+ #8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xca/0x13e lib/dump_stack.c:113
 kasan_report.cold+0x5/0x35 mm/kasan/report.c:321
 memset+0x20/0x40 mm/kasan/common.c:115
 memset include/linux/string.h:337 [inline]
 submit_audio_out_urb+0x919/0x1780 sound/usb/line6/playback.c:246
 line6_submit_audio_out_all_urbs+0xc9/0x120 sound/usb/line6/playback.c:295
 line6_stream_start+0x156/0x1f0 sound/usb/line6/pcm.c:199
 line6_pcm_acquire+0x134/0x210 sound/usb/line6/pcm.c:322
 call_timer_fn+0x15c/0x5e0 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x586/0x1400 kernel/time/timer.c:1694
 __do_softirq+0x21f/0x8bc kernel/softirq.c:293
 invoke_softirq kernel/softirq.c:374 [inline]
 irq_exit+0x17c/0x1a0 kernel/softirq.c:414
 exiting_irq arch/x86/include/asm/apic.h:536 [inline]
 smp_apic_timer_interrupt+0xf1/0x490 arch/x86/kernel/apic/apic.c:1062
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807
 </IRQ>
RIP: 0010:fsnotify+0x1e/0xb20 fs/notify/fsnotify.c:329
Code: ff e8 06 50 ec ff e9 98 fe ff ff 90 41 57 41 56 49 89 fe 41 55 41 54 55 53 48 bb 00 00 00 00 00 fc ff df 48 81 ec d0 00 00 00 <48> 8d 44 24 50 48 89 7c 24 20 48 c1 e8 03 89 74 24 1c 48 89 44 24
RSP: 0018:ffff8881b1dafd38 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13
RAX: ffff8881cd8b9800 RBX: dffffc0000000000 RCX: 0000000000000001
RDX: ffff8881cc6b0f10 RSI: 0000000000000001 RDI: ffff8881c8830810
RBP: ffff8881cc6b0f00 R08: 0000000000000000 R09: 0000000000000000
R10: ffffed103b665737 R11: ffff8881db32b9bb R12: ffff8881c8830810
R13: ffff8881cc6b0f10 R14: ffff8881c8830810 R15: 0000000000000001
 fsnotify_path include/linux/fsnotify.h:54 [inline]
 fsnotify_path include/linux/fsnotify.h:47 [inline]
 fsnotify_access include/linux/fsnotify.h:247 [inline]
 vfs_read+0x35e/0x3d0 fs/read_write.c:454
 ksys_read+0xcc/0x1d0 fs/read_write.c:578
 do_syscall_64+0xbd/0x500 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x412ae0
Code: 01 f0 ff ff 0f 83 70 1b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d ad 37 64 00 00 75 14 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 44 1b 00 00 c3 48 83 ec 08 e8 6a fc ff ff
RSP: 002b:00007ffeb0dce578 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000412ae0
RDX: 0000000000000038 RSI: 0000000000738020 RDI: 00000000000000f9
RBP: 00000000000004b4 R08: 0000000000006000 R09: 0000000000004000
R10: 00007ffeb0dcdf10 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeb0dce5b0 R14: 0000000000118401 R15: 00007ffeb0dce5c0
==================================================================