cdc_mbim 8-1:1.0: wdm_int_callback - usb_submit_urb failed with result -1
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 UID: 0 PID: 29 Comm: ksoftirqd/1 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__skb_unlink include/linux/skbuff.h:2428 [inline]
RIP: 0010:defer_bh+0xf5/0x360 drivers/net/usb/usbnet.c:443
Code: 00 00 48 8d 78 08 4c 8b 6b 08 48 b9 00 00 00 00 00 fc ff df 48 c7 43 08 00 00 00 00 48 89 fe 48 c7 03 00 00 00 00 48 c1 ee 03 <80> 3c 0e 00 0f 85 de 01 00 00 4c 89 ee 4c 89 68 08 48 b9 00 00 00
RSP: 0018:ffffc90000687978 EFLAGS: 00010002
RAX: 0000000000000000 RBX: ffff888023f6fb80 RCX: dffffc0000000000
RDX: 1ffff110047edf70 RSI: 0000000000000001 RDI: 0000000000000008
RBP: ffff888050d04d80 R08: 0000000000000001 R09: fffff520000d0f1d
R10: 0000000000000003 R11: 0000000000000000 R12: ffff888023f6fb88
R13: 0000000000000000 R14: ffff888050d04fa8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806a700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe3f6629ff8 CR3: 00000000321be000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rx_complete+0x63a/0xbe0 drivers/net/usb/usbnet.c:665
 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
 dummy_timer+0x17f7/0x3960 drivers/usb/gadget/udc/dummy_hcd.c:1993
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1803
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1820
 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
 run_ksoftirqd kernel/softirq.c:950 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:942
 smpboot_thread_fn+0x661/0xa30 kernel/smpboot.c:164
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__skb_unlink include/linux/skbuff.h:2428 [inline]
RIP: 0010:defer_bh+0xf5/0x360 drivers/net/usb/usbnet.c:443
Code: 00 00 48 8d 78 08 4c 8b 6b 08 48 b9 00 00 00 00 00 fc ff df 48 c7 43 08 00 00 00 00 48 89 fe 48 c7 03 00 00 00 00 48 c1 ee 03 <80> 3c 0e 00 0f 85 de 01 00 00 4c 89 ee 4c 89 68 08 48 b9 00 00 00
RSP: 0018:ffffc90000687978 EFLAGS: 00010002
RAX: 0000000000000000 RBX: ffff888023f6fb80 RCX: dffffc0000000000
RDX: 1ffff110047edf70 RSI: 0000000000000001 RDI: 0000000000000008
RBP: ffff888050d04d80 R08: 0000000000000001 R09: fffff520000d0f1d
R10: 0000000000000003 R11: 0000000000000000 R12: ffff888023f6fb88
R13: 0000000000000000 R14: ffff888050d04fa8 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff88806a700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe3f6629ff8 CR3: 00000000321be000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	48 8d 78 08          	lea    0x8(%rax),%rdi
   6:	4c 8b 6b 08          	mov    0x8(%rbx),%r13
   a:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  11:	fc ff df
  14:	48 c7 43 08 00 00 00 	movq   $0x0,0x8(%rbx)
  1b:	00
  1c:	48 89 fe             	mov    %rdi,%rsi
  1f:	48 c7 03 00 00 00 00 	movq   $0x0,(%rbx)
  26:	48 c1 ee 03          	shr    $0x3,%rsi
* 2a:	80 3c 0e 00          	cmpb   $0x0,(%rsi,%rcx,1) <-- trapping instruction
  2e:	0f 85 de 01 00 00    	jne    0x212
  34:	4c 89 ee             	mov    %r13,%rsi
  37:	4c 89 68 08          	mov    %r13,0x8(%rax)
  3b:	48                   	rex.W
  3c:	b9                   	.byte 0xb9
  3d:	00 00                	add    %al,(%rax)