general protection fault, probably for non-canonical address 0xdffffc00000001f5: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000fa8-0x0000000000000faf] CPU: 0 PID: 3873 Comm: kworker/u4:12 Not tainted 5.19.0-rc6-syzkaller-00418-g972a278fe60c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Workqueue: netns cleanup_net RIP: 0010:ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:642 [inline] RIP: 0010:ath9k_hif_usb_rx_cb+0x87a/0x10d0 drivers/net/wireless/ath/ath9k/hif_usb.c:686 Code: 00 00 00 48 8d 78 08 48 89 fa 48 c1 ea 03 80 3c 1a 00 0f 85 b8 05 00 00 48 8b 40 08 48 8d b8 a8 0f 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 1a 84 d2 74 09 80 fa 03 0f 8e 0f 06 00 00 83 80 a8 0f 00 RSP: 0018:ffffc90000007918 EFLAGS: 00010016 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffc90001cb1000 RDX: 00000000000001f5 RSI: ffffffff8539a942 RDI: 0000000000000fa8 RBP: 000000000000003d R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000044 R13: 0000000000000000 R14: 000000000000003d R15: ffff88807bde63c0 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f817059d090 CR3: 0000000076c01000 CR4: 0000000000350ef0 Call Trace: __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1670 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1747 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x29b/0x9c2 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:lock_acquire+0x1ef/0x570 kernel/locking/lockdep.c:5633 Code: 1c a4 7e 83 f8 01 0f 85 e8 02 00 00 9c 58 f6 c4 02 0f 85 fb 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc90004df7a50 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff920009bef4c RCX: 4d92f5567311e828 RDX: 1ffff11005e318ab RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff90684907 R10: fffffbfff20d0920 R11: 0000000000000001 R12: 0000000000000002 R13: 0000000000000000 R14: ffffffff8bd870a0 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:269 [inline] rcu_read_lock include/linux/rcupdate.h:695 [inline] inet_twsk_purge+0x117/0x850 net/ipv4/inet_timewait_sock.c:270 ops_exit_list+0x125/0x170 net/core/net_namespace.c:167 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:594 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:642 [inline] RIP: 0010:ath9k_hif_usb_rx_cb+0x87a/0x10d0 drivers/net/wireless/ath/ath9k/hif_usb.c:686 Code: 00 00 00 48 8d 78 08 48 89 fa 48 c1 ea 03 80 3c 1a 00 0f 85 b8 05 00 00 48 8b 40 08 48 8d b8 a8 0f 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 1a 84 d2 74 09 80 fa 03 0f 8e 0f 06 00 00 83 80 a8 0f 00 RSP: 0018:ffffc90000007918 EFLAGS: 00010016 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffc90001cb1000 RDX: 00000000000001f5 RSI: ffffffff8539a942 RDI: 0000000000000fa8 RBP: 000000000000003d R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000044 R13: 0000000000000000 R14: 000000000000003d R15: ffff88807bde63c0 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f817059d090 CR3: 0000000076c01000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 48 8d add %cl,-0x73(%rax) 5: 78 08 js 0xf 7: 48 89 fa mov %rdi,%rdx a: 48 c1 ea 03 shr $0x3,%rdx e: 80 3c 1a 00 cmpb $0x0,(%rdx,%rbx,1) 12: 0f 85 b8 05 00 00 jne 0x5d0 18: 48 8b 40 08 mov 0x8(%rax),%rax 1c: 48 8d b8 a8 0f 00 00 lea 0xfa8(%rax),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 0f b6 14 1a movzbl (%rdx,%rbx,1),%edx <-- trapping instruction 2e: 84 d2 test %dl,%dl 30: 74 09 je 0x3b 32: 80 fa 03 cmp $0x3,%dl 35: 0f 8e 0f 06 00 00 jle 0x64a 3b: 83 .byte 0x83 3c: 80 .byte 0x80 3d: a8 0f test $0xf,%al