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: 0 PID: 5046 Comm: syz-executor.4 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: 0018:ffffc900000079b8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffffffffffc8 RCX: ffffc90005939000 RDX: 0000000000040000 RSI: ffffffff830a0050 RDI: ffffc90000007928 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003 R10: fffff52000000f25 R11: 0000000000000000 R12: ffff88811f753678 R13: ffff88811f753240 R14: ffff88811f753688 R15: ffff88811a4136a8 FS: 00000000029fd400(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffc8 CR3: 00000001444c5000 CR4: 00000000001506f0 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+0x6a/0x90 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:finish_task_switch.isra.0+0x208/0x860 kernel/sched/core.c:4557 Code: 8b 3b 4c 89 f7 48 c7 03 00 00 00 00 ff d2 4d 85 ff 75 bd 4c 89 f7 e8 e7 b2 a1 04 e8 92 9f 28 00 fb 65 48 8b 1c 25 40 ef 01 00 <48> 8d bb 20 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffffc900016cfb40 EFLAGS: 00000246 RAX: 0000000000000007 RBX: ffff88814313b680 RCX: 1ffffffff111e09d RDX: 0000000000000000 RSI: ffffffff81477161 RDI: ffffffff811ed17e RBP: ffffc900016cfb80 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81477148 R11: 0000000000000001 R12: ffffffff888f04ec R13: ffff888109053680 R14: ffff8881f684f4c0 R15: ffff8881f684f4d8 context_switch kernel/sched/core.c:4686 [inline] __schedule+0x949/0x22b0 kernel/sched/core.c:5940 schedule+0xcf/0x270 kernel/sched/core.c:6019 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x197/0x6a0 kernel/time/hrtimer.c:1896 hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:1949 common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1227 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1267 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1245 [inline] __x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1245 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x48a75a Code: 83 ff 03 74 3b 48 83 ec 28 b8 fa ff ff ff 83 ff 02 49 89 ca 0f 44 f8 64 8b 04 25 18 00 00 00 85 c0 75 2d b8 e6 00 00 00 0f 05 <89> c2 f7 da 3d 00 f0 ff ff b8 00 00 00 00 0f 47 c2 48 83 c4 28 c3 RSP: 002b:00007ffcf1dfe2f0 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 0000000000000137 RCX: 000000000048a75a RDX: 00007ffcf1dfe330 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffcf1dfe3cc R08: 000000000000012e R09: 00007ffcf1f27080 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000032 R13: 00000000000493c7 R14: 0000000000000004 R15: 00007ffcf1dfe430 Modules linked in: CR2: ffffffffffffffc8 ---[ end trace 348b660c37508b02 ]--- 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: 0018:ffffc900000079b8 EFLAGS: 00010046 RAX: 0000000000000000 RBX: ffffffffffffffc8 RCX: ffffc90005939000 RDX: 0000000000040000 RSI: ffffffff830a0050 RDI: ffffc90000007928 RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000003 R10: fffff52000000f25 R11: 0000000000000000 R12: ffff88811f753678 R13: ffff88811f753240 R14: ffff88811f753688 R15: ffff88811a4136a8 FS: 00000000029fd400(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffc8 CR3: 00000001444c5000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400