general protection fault, probably for non-canonical address 0xdffffc00000001f3: 0000 [#1] SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000f98-0x0000000000000f9f]
CPU: 1 PID: 11899 Comm: syz-executor.4 Not tainted 5.8.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:580 [inline]
RIP: 0010:ath9k_hif_usb_rx_cb+0xc4d/0xf80 drivers/net/wireless/ath/ath9k/hif_usb.c:671
Code: 48 c1 ea 03 80 3c 02 00 0f 85 0e 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 08 48 8d bb 9c 0f 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8
RSP: 0018:ffff8881db309920 EFLAGS: 00010007
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900006a8000
RDX: 00000000000001f3 RSI: ffffffff82e1fcb9 RDI: 0000000000000f9c
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffff8881d92d542b
R10: 0000000000004e00 R11: 0000000000000003 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8881d92d5000 R15: ffff8881cf6e8440
FS:  00007f1ff24dd700(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020b3c000 CR3: 00000001c9999000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __usb_hcd_giveback_urb+0x32d/0x560 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1716
 dummy_timer+0x11f2/0x3240 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.part.0+0x54c/0x9e0 kernel/time/timer.c:1773
 __run_timers kernel/time/timer.c:1745 [inline]
 run_timer_softirq+0x80/0x120 kernel/time/timer.c:1786
 __do_softirq+0x222/0x95b kernel/softirq.c:292
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
 </IRQ>
 __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+0xed/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+0x150/0x1f0 kernel/softirq.c:429
 sysvec_apic_timer_interrupt+0x49/0xc0 arch/x86/kernel/apic/apic.c:1091
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:596
RIP: 0010:xa_entry include/linux/xarray.h:1180 [inline]
RIP: 0010:xas_descend lib/xarray.c:204 [inline]
RIP: 0010:xas_load+0x143/0x2d0 lib/xarray.c:240
Code: 48 8b 03 45 89 ee 4a 8d 7c f5 28 48 89 04 24 48 89 f8 48 c1 e8 03 42 80 3c 20 00 0f 85 5b 01 00 00 49 83 c6 04 4e 8b 74 f5 08 <e8> d8 b7 b7 03 31 ff 41 89 c7 89 c6 e8 fc e0 48 ff 45 85 ff 74 22
RSP: 0018:ffff8881c65ff880 EFLAGS: 00000206
RAX: 1ffff1103837a840 RBX: ffff8881c65ff908 RCX: 0000000000000000
RDX: 0000000000040000 RSI: ffffffff81f6bcf0 RDI: ffff8881c1bd4200
RBP: ffff8881c1bd4000 R08: 0000000000000001 R09: ffffffff895ad667
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000003b R14: ffffea00067e1a00 R15: 0000000000000000
 xa_load+0x109/0x270 lib/xarray.c:1305
 page_cache_readahead_unbounded+0x2ca/0x670 mm/readahead.c:205
 __do_page_cache_readahead mm/readahead.c:273 [inline]
 ra_submit mm/internal.h:64 [inline]
 ondemand_readahead+0x5f9/0xee0 mm/readahead.c:551
 page_cache_async_readahead mm/readahead.c:631 [inline]
 page_cache_async_readahead+0x281/0x3d0 mm/readahead.c:604
 generic_file_buffered_read+0x10f2/0x1e00 mm/filemap.c:2041
 generic_file_read_iter+0x347/0x490 mm/filemap.c:2307
 ext4_file_read_iter fs/ext4/file.c:131 [inline]
 ext4_file_read_iter+0x181/0x4c0 fs/ext4/file.c:114
 call_read_iter include/linux/fs.h:1901 [inline]
 new_sync_read+0x41a/0x6e0 fs/read_write.c:415
 __vfs_read+0xc9/0x100 fs/read_write.c:428
 vfs_read+0x1f6/0x420 fs/read_write.c:462
 ksys_read+0x12d/0x250 fs/read_write.c:588
 do_syscall_64+0x50/0x90 arch/x86/entry/common.c:359
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45cba9
Code: Bad RIP value.
RSP: 002b:00007f1ff24dcc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000004fd860 RCX: 000000000045cba9
RDX: 00000000cfc7f929 RSI: 0000000020003280 RDI: 0000000000000007
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000008dd R14: 00000000004cbbd5 R15: 00007f1ff24dd6d4
Modules linked in:
---[ end trace d62f697ca59b0ee8 ]---
RIP: 0010:ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:580 [inline]
RIP: 0010:ath9k_hif_usb_rx_cb+0xc4d/0xf80 drivers/net/wireless/ath/ath9k/hif_usb.c:671
Code: 48 c1 ea 03 80 3c 02 00 0f 85 0e 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 08 48 8d bb 9c 0f 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 09 84 d2 74 05 e8
RSP: 0018:ffff8881db309920 EFLAGS: 00010007
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900006a8000
RDX: 00000000000001f3 RSI: ffffffff82e1fcb9 RDI: 0000000000000f9c
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffff8881d92d542b
R10: 0000000000004e00 R11: 0000000000000003 R12: 0000000000000000
R13: 0000000000000000 R14: ffff8881d92d5000 R15: ffff8881cf6e8440
FS:  00007f1ff24dd700(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020b3c000 CR3: 00000001c9999000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400