================================================================== BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:627 [inline] BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0xdb4/0x1050 drivers/net/wireless/ath/ath9k/hif_usb.c:671 Read of size 4 at addr ffff8881ac16c090 by task swapper/1/0 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.8.0-rc1-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+0xf6/0x16e lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd3/0x415 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x37/0x7c mm/kasan/report.c:530 ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:627 [inline] ath9k_hif_usb_rx_cb+0xdb4/0x1050 drivers/net/wireless/ath/ath9k/hif_usb.c:671 __usb_hcd_giveback_urb+0x29a/0x550 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1716 dummy_timer+0x125e/0x32b4 drivers/usb/gadget/udc/dummy_hcd.c:1967 call_timer_fn+0x1ac/0x6e0 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+0x5e5/0x14c0 kernel/time/timer.c:1786 __do_softirq+0x21e/0x996 kernel/softirq.c:292 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0x109/0x140 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:387 [inline] __irq_exit_rcu kernel/softirq.c:417 [inline] irq_exit_rcu+0x16f/0x1a0 kernel/softirq.c:429 sysvec_apic_timer_interrupt+0xd3/0x1b0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:49 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline] RIP: 0010:acpi_safe_halt+0x72/0x90 drivers/acpi/processor_idle.c:108 Code: 74 06 5b e9 d0 05 a6 fb e8 cb 05 a6 fb e8 d6 69 ab fb e9 0c 00 00 00 e8 bc 05 a6 fb 0f 00 2d 75 58 6b 00 e8 b0 05 a6 fb fb f4 e8 c8 67 ab fb 5b e9 a2 05 a6 fb 48 89 df e8 8a b4 cf fb eb ab RSP: 0018:ffff8881da22fc60 EFLAGS: 00000293 RAX: ffff8881da213200 RBX: 0000000000000000 RCX: 1ffffffff0fd4d12 RDX: 0000000000000000 RSI: ffffffff85996970 RDI: ffff8881da213a38 RBP: ffff8881d8cba864 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d8cba864 R13: 1ffff1103b445f96 R14: ffff8881d8cba865 R15: 0000000000000001 acpi_idle_do_entry+0xa9/0xe0 drivers/acpi/processor_idle.c:525 acpi_idle_enter+0x42b/0xac0 drivers/acpi/processor_idle.c:651 cpuidle_enter_state+0xdb/0xc20 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+0x3c2/0x500 kernel/sched/idle.c:269 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:365 start_secondary+0x294/0x370 arch/x86/kernel/smpboot.c:268 secondary_startup_64+0xb6/0xc0 arch/x86/kernel/head_64.S:243 Allocated by task 0: (stack is not available) Freed by task 0: (stack is not available) The buggy address belongs to the object at ffff8881ac16c000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 144 bytes inside of 1024-byte region [ffff8881ac16c000, ffff8881ac16c400) The buggy address belongs to the page: page:ffffea0006b05a00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea0006b05a00 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x200000000010200(slab|head) raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da002280 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881ac16bf80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881ac16c000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8881ac16c080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8881ac16c100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881ac16c180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================