================================================================== 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 ffff8881cdba4030 by task swapper/1/0 CPU: 1 PID: 0 Comm: swapper/1 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+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 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x178/0x1a0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:546 [inline] smp_apic_timer_interrupt+0x141/0x540 arch/x86/kernel/apic/apic.c:1107 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 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 8c a6 fb e8 cb 8c a6 fb e8 b6 e5 ab fb e9 0c 00 00 00 e8 bc 8c a6 fb 0f 00 2d 25 99 6b 00 e8 b0 8c a6 fb fb f4 e8 c8 ec ab fb 5b e9 a2 8c a6 fb 48 89 df e8 6a 3b d0 fb eb ab RSP: 0018:ffff8881da227c60 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8881da20b200 RBX: 0000000000000000 RCX: 1ffffffff0fd4d4a RDX: 0000000000000000 RSI: ffffffff85992400 RDI: ffff8881da20ba38 RBP: ffff8881d8c9b064 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881d8c9b064 R13: 1ffff1103b444f96 R14: ffff8881d8c9b065 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+0x2ae/0x390 arch/x86/kernel/smpboot.c:268 secondary_startup_64+0xb6/0xc0 arch/x86/kernel/head_64.S:242 Allocated by task 0: (stack is not available) Freed by task 0: (stack is not available) The buggy address belongs to the object at ffff8881cdba3200 which belongs to the cache task_struct of size 6144 The buggy address is located 3632 bytes inside of 6144-byte region [ffff8881cdba3200, ffff8881cdba4a00) The buggy address belongs to the page: page:ffffea000736e800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 head:ffffea000736e800 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x200000000010200(slab|head) raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da11c000 raw: 0000000000000000 0000000080050005 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881cdba3f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881cdba3f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8881cdba4000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8881cdba4080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881cdba4100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================