================================================================== BUG: KASAN: use-after-free in memcpy include/linux/fortify-string.h:191 [inline] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:562 [inline] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_cb+0x3d3/0x1050 drivers/net/wireless/ath/ath9k/hif_usb.c:680 Read of size 41740 at addr ffff88802d308000 by task swapper/1/0 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.12.0-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:79 [inline] dump_stack+0xfa/0x151 lib/dump_stack.c:120 print_address_description.constprop.0.cold+0x5b/0x2f8 mm/kasan/report.c:232 __kasan_report mm/kasan/report.c:399 [inline] kasan_report.cold+0x7c/0xd8 mm/kasan/report.c:416 check_region_inline mm/kasan/generic.c:180 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:186 memcpy+0x20/0x60 mm/kasan/shadow.c:65 memcpy include/linux/fortify-string.h:191 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:562 [inline] ath9k_hif_usb_rx_cb+0x3d3/0x1050 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726 dummy_timer+0x11f4/0x32a0 drivers/usb/gadget/udc/dummy_hcd.c:1971 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1431 expire_timers kernel/time/timer.c:1476 [inline] __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1745 __run_timers kernel/time/timer.c:1726 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1758 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu kernel/softirq.c:422 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:137 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] RIP: 0010:acpi_idle_do_entry+0x1c9/0x250 drivers/acpi/processor_idle.c:516 Code: 3d 07 6e f8 84 db 75 ac e8 b4 00 6e f8 e8 6f ea 73 f8 e9 0c 00 00 00 e8 a5 00 6e f8 0f 00 2d ae 39 c5 00 e8 99 00 6e f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 74 08 6e f8 48 85 db RSP: 0018:ffffc90000d47d18 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880115c3780 RSI: ffffffff890536d7 RDI: 0000000000000000 RBP: ffff8881414cd864 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff81792168 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8881414cd800 R14: ffff8881414cd864 R15: ffff888017f01804 acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:647 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:158 [inline] cpuidle_idle_call kernel/sched/idle.c:239 [inline] do_idle+0x3e1/0x590 kernel/sched/idle.c:300 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:397 start_secondary+0x274/0x350 arch/x86/kernel/smpboot.c:272 secondary_startup_64_no_verify+0xb0/0xbb The buggy address belongs to the page: page:000000002d440752 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2d308 head:000000002d440752 order:3 compound_mapcount:0 compound_pincount:0 flags: 0xfff00000010000(head) raw: 00fff00000010000 dead000000000100 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88802d30ff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88802d30ff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88802d310000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88802d310080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88802d310100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================