================================================================== BUG: KASAN: slab-out-of-bounds in snd_usb_mixer_notify_id+0x219/0x2a0 sound/usb/mixer.c:3240 Write of size 4 at addr ffff8880a7749660 by task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x188/0x20d lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd3/0x413 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530 snd_usb_mixer_notify_id+0x219/0x2a0 sound/usb/mixer.c:3240 snd_usb_mixer_interrupt+0x416/0x980 sound/usb/mixer.c:3379 __usb_hcd_giveback_urb+0x2af/0x4b0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716 __skb_queue_head_init include/linux/skbuff.h:1854 [inline] skbpoolfree drivers/block/aoe/aoedev.c:435 [inline] freedev drivers/block/aoe/aoedev.c:290 [inline] dummy_timer+0x1243/0x2fe1 drivers/block/aoe/aoedev.c:366 call_timer_fn+0x1ac/0x780 kernel/time/timer.c:1404 expire_timers kernel/time/timer.c:1449 [inline] __run_timers kernel/time/timer.c:1773 [inline] __run_timers kernel/time/timer.c:1740 [inline] run_timer_softirq+0x623/0x1600 kernel/time/timer.c:1786 __do_softirq+0x26c/0x9f7 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x192/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:546 [inline] smp_apic_timer_interrupt+0x19e/0x600 arch/x86/kernel/apic/apic.c:1107 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: cc cc cc cc cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d 84 9c 4a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 74 9c 4a 00 fb f4 cc 41 56 41 55 41 54 55 53 e8 33 9c 83 f9 e8 be c8 bf fb 0f 1f RSP: 0018:ffffffff89807c50 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffffffff89886580 RBX: 0000000000000000 RCX: 1ffffffff15173ba RDX: 0000000000000000 RSI: ffffffff87de1248 RDI: ffffffff89886e00 RBP: ffff88821af54864 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88821af54864 R13: 1ffffffff1300f95 R14: ffff88821af54865 R15: 0000000000000001 arch_safe_halt arch/x86/include/asm/paravirt.h:150 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] acpi_safe_halt+0x8d/0x110 drivers/acpi/processor_idle.c:108 acpi_idle_do_entry+0xa9/0xe0 drivers/acpi/processor_idle.c:525 acpi_idle_enter+0x437/0xb20 drivers/acpi/processor_idle.c:651 cpuidle_enter_state+0xdd/0xd60 drivers/cpuidle/cpuidle.c:234 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:345 call_cpuidle kernel/sched/idle.c:117 [inline] cpuidle_idle_call kernel/sched/idle.c:207 [inline] do_idle+0x42f/0x690 kernel/sched/idle.c:269 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:365 start_kernel+0x9be/0x9fb init/main.c:1041 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:242 Allocated by task 2682: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc mm/kasan/common.c:494 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:467 kmem_cache_alloc_trace+0x153/0x7d0 mm/slab.c:3551 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:669 [inline] add_single_ctl_with_resume+0x53/0x1d0 sound/usb/mixer_quirks.c:147 snd_mbox1_create_sync_switch sound/usb/mixer_quirks.c:719 [inline] snd_usb_mixer_apply_create_quirk+0x17ac/0x2000 sound/usb/mixer_quirks.c:2654 snd_usb_create_mixer+0x7de/0x18c0 sound/usb/mixer.c:3538 create_standard_mixer_quirk+0x57/0x70 sound/usb/quirks.c:508 snd_usb_create_quirk+0x9f/0xd0 sound/usb/quirks.c:563 create_composite_quirk+0x1d5/0x420 sound/usb/quirks.c:48