================================================================== BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:381 [inline] BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:553 [inline] BUG: KASAN: slab-out-of-bounds in ath9k_hif_usb_rx_cb+0x3be/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666 Read of size 48852 at addr ffff8881c7190000 by task kworker/1:7/3202 CPU: 1 PID: 3202 Comm: kworker/1:7 Not tainted 5.7.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xef/0x16e lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd3/0x314 mm/kasan/report.c:382 __kasan_report.cold+0x37/0x92 mm/kasan/report.c:511 kasan_report+0x33/0x50 mm/kasan/common.c:625 check_memory_region_inline mm/kasan/generic.c:187 [inline] check_memory_region+0x173/0x1d0 mm/kasan/generic.c:193 memcpy+0x20/0x60 mm/kasan/common.c:106 memcpy include/linux/string.h:381 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:553 [inline] ath9k_hif_usb_rx_cb+0x3be/0xf90 drivers/net/wireless/ath/ath9k/hif_usb.c:666 __usb_hcd_giveback_urb+0x1f2/0x470 drivers/usb/core/hcd.c:1648 usb_hcd_giveback_urb+0x368/0x420 drivers/usb/core/hcd.c:1713 dummy_timer+0x125e/0x32b4 drivers/usb/gadget/udc/dummy_hcd.c:1966 call_timer_fn+0x1ac/0x700 kernel/time/timer.c:1405 expire_timers kernel/time/timer.c:1450 [inline] __run_timers kernel/time/timer.c:1774 [inline] __run_timers kernel/time/timer.c:1741 [inline] run_timer_softirq+0x5f9/0x1500 kernel/time/timer.c:1787 __do_softirq+0x21e/0x9aa 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:1140 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:85 [inline] RIP: 0010:console_unlock+0xa6b/0xca0 kernel/printk/printk.c:2506 Code: 00 89 ee 48 c7 c7 20 d2 14 87 e8 50 cf 03 00 65 ff 0d f1 30 d8 7e e9 b5 f9 ff ff e8 4f 5f 16 00 e8 2a bb 1b 00 ff 74 24 30 9d 17 fe ff ff e8 3b 5f 16 00 48 8d 7d 08 48 89 f8 48 c1 e8 03 42 RSP: 0018:ffff8881ac77f178 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: 0000000000000200 RCX: 1ffffffff126c9bd RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8881d027213c RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff126c8bd R10: ffffffff893645e7 R11: fffffbfff126c8bc R12: ffffffff82aba0b0 R13: ffffffff874ee290 R14: 0000000000000036 R15: dffffc0000000000 vprintk_emit+0x16d/0x3e0 kernel/printk/printk.c:2021 dev_vprintk_emit+0x4fc/0x541 drivers/base/core.c:3774 dev_printk_emit+0xba/0xf1 drivers/base/core.c:3785 __dev_printk+0x1db/0x203 drivers/base/core.c:3797 _dev_warn+0xd7/0x109 drivers/base/core.c:3841 usb_set_configuration.cold+0x17e/0x1b0 drivers/usb/core/message.c:1841 usb_generic_driver_probe+0x9d/0xe0 drivers/usb/core/generic.c:241 usb_probe_device+0xd9/0x230 drivers/usb/core/driver.c:272 really_probe+0x290/0xac0 drivers/base/dd.c:520 driver_probe_device+0x223/0x350 drivers/base/dd.c:697 __device_attach_driver+0x1d1/0x290 drivers/base/dd.c:804 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x21a/0x390 drivers/base/dd.c:870 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0x1367/0x1c40 drivers/base/core.c:2538 usb_new_device.cold+0x552/0xf6e drivers/usb/core/hub.c:2553 hub_port_connect drivers/usb/core/hub.c:5207 [inline] hub_port_connect_change drivers/usb/core/hub.c:5347 [inline] port_event drivers/usb/core/hub.c:5493 [inline] hub_event+0x226d/0x43c0 drivers/usb/core/hub.c:5575 process_one_work+0x965/0x1630 kernel/workqueue.c:2268 worker_thread+0x96/0xe20 kernel/workqueue.c:2414 kthread+0x326/0x430 kernel/kthread.c:268 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:351 The buggy address belongs to the page: page:ffffea00071c6400 refcount:1 mapcount:0 mapping:00000000d4c50644 index:0x0 head:ffffea00071c6400 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x200000000010000(head) raw: 0200000000010000 dead000000000100 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881c7198400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8881c7198480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8881c7198500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc ^ ffff8881c7198580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881c7198600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================