BUG: unable to handle page fault for address: ffffffffffffffc8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 7426067 P4D 7426067 PUD 7428067 PMD 0 
Oops: 0000 [#1] SMP KASAN
CPU: 1 PID: 22311 Comm: systemd-udevd Tainted: G        W         5.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ath9k_htc_rxep+0xb5/0x210 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1135
Code: 8b 43 38 48 8d 58 c8 49 39 c4 0f 84 ee 00 00 00 e8 f0 64 37 fe 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 74 06 0f 8e 0a 01 00 00 <44> 0f b6 3b 31 ff 44 89 fe e8 fd 6b 37 fe 45 84 ff 75 a8 e8 c3 64
RSP: 0000:ffffc90013c3f900 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffffffffffc8 RCX: ffffc900059ea000
RDX: 0000000000040000 RSI: ffffffff830a0050 RDI: ffffc90013c3f870
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff52002787f0e R11: 0000000000000000 R12: ffff888107bc3678
R13: ffff888107bc3240 R14: ffff888107bc3688 R15: ffff88811ec623a8
FS:  00007efe919388c0(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffc8 CR3: 0000000116a2e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ath9k_htc_rx_msg+0x2e4/0xb70 drivers/net/wireless/ath/ath9k/htc_hst.c:461
 ath9k_hif_usb_reg_in_cb+0x1ac/0x630 drivers/net/wireless/ath/ath9k/hif_usb.c:733
 __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+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1987
 call_timer_fn+0x1a5/0x630 kernel/time/timer.c:1417
 expire_timers kernel/time/timer.c:1462 [inline]
 __run_timers.part.0+0x675/0xa10 kernel/time/timer.c:1731
 __run_timers kernel/time/timer.c:1712 [inline]
 run_timer_softirq+0x80/0x120 kernel/time/timer.c:1744
 __do_softirq+0x1b0/0x910 kernel/softirq.c:558
 invoke_softirq kernel/softirq.c:432 [inline]
 __irq_exit_rcu+0x117/0x160 kernel/softirq.c:636
 irq_exit_rcu+0x5/0x10 kernel/softirq.c:648
 sysvec_apic_timer_interrupt+0x34/0x90 arch/x86/kernel/apic/apic.c:1100
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x55eb95bb3e7b
Code: 55 41 54 55 53 48 83 ec 08 48 85 ff 0f 84 ad 00 00 00 48 85 f6 48 89 f5 0f 84 c1 00 00 00 80 3f 2f 48 89 fb 0f 94 c1 80 3e 2f <0f> 94 c2 31 c0 38 d1 75 6c 4c 8d 2d f0 57 01 00 eb 3e 0f 1f 00 80
RSP: 002b:00007ffe01db5c40 EFLAGS: 00000246
RAX: 000055eb965fd230 RBX: 000055eb965fd230 RCX: 000055eb965fd201
RDX: 00007ffe01db5ba0 RSI: 000055eb95bcc266 RDI: 000055eb965fd230
RBP: 000055eb95bcc266 R08: 00007efe90a69198 R09: 0000000000001010
R10: 00007efe90a68b58 R11: 0000000000000246 R12: 000055eb95bc9856
R13: 000055eb96602e90 R14: 00000000ffffffea R15: 000055eb965f0888
Modules linked in:
CR2: ffffffffffffffc8
---[ end trace cca15b992c2a4328 ]---
RIP: 0010:ath9k_htc_rxep+0xb5/0x210 drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1135
Code: 8b 43 38 48 8d 58 c8 49 39 c4 0f 84 ee 00 00 00 e8 f0 64 37 fe 48 89 d8 48 c1 e8 03 0f b6 04 28 84 c0 74 06 0f 8e 0a 01 00 00 <44> 0f b6 3b 31 ff 44 89 fe e8 fd 6b 37 fe 45 84 ff 75 a8 e8 c3 64
RSP: 0000:ffffc90013c3f900 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffffffffffffc8 RCX: ffffc900059ea000
RDX: 0000000000040000 RSI: ffffffff830a0050 RDI: ffffc90013c3f870
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003
R10: fffff52002787f0e R11: 0000000000000000 R12: ffff888107bc3678
R13: ffff888107bc3240 R14: ffff888107bc3688 R15: ffff88811ec623a8
FS:  00007efe919388c0(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffc8 CR3: 0000000116a2e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400