Oops: general protection fault, probably for non-canonical address 0xdffffc0000000024: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000120-0x0000000000000127]
CPU: 0 UID: 0 PID: 16170 Comm: dhcpcd-run-hook Not tainted 6.13.0-rc6-syzkaller-00006-g5428dc1906dd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:tty_insert_flip_char include/linux/tty_flip.h:67 [inline]
RIP: 0010:qt2_process_read_urb drivers/usb/serial/quatech2.c:538 [inline]
RIP: 0010:qt2_read_bulk_callback+0x3b2/0x1160 drivers/usb/serial/quatech2.c:574
Code: 00 00 42 0f b6 04 28 84 c0 0f 85 e0 08 00 00 c6 84 24 d0 00 00 00 00 48 8b 44 24 08 48 8d 98 20 01 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 0f 1b 81 fa 4c 8b 3b 4d 8d 67 08
RSP: 0018:ffffc90000007720 EFLAGS: 00010006
RAX: 0000000000000024 RBX: 0000000000000120 RCX: ffffc90000007700
RDX: ffffc90002203000 RSI: 000000000000007a RDI: 000000000000007b
RBP: ffffc90000007870 R08: ffffffff8784cba6 R09: 1ffffffff203303e
R10: dffffc0000000000 R11: fffffbfff203303f R12: ffff88806ce31813
R13: dffffc0000000000 R14: 00000000000000a5 R15: ffff88803035b800
FS:  00007f674868d380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30f1aff8 CR3: 000000005f8b6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __usb_hcd_giveback_urb+0x42c/0x6e0 drivers/usb/core/hcd.c:1650
 dummy_timer+0x856/0x4620 drivers/usb/gadget/udc/dummy_hcd.c:1993
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:vma_interval_tree_insert_after+0xa2/0x2b0 mm/interval_tree.c:36
Code: 48 8b 44 24 08 48 8d 68 78 48 89 e8 48 c1 e8 03 4c 2b 23 42 80 3c 38 00 74 08 48 89 ef e8 16 54 1d 00 48 89 1c 24 48 8b 6d 00 <4c> 89 f7 48 89 ee e8 b3 f2 b6 ff 49 39 ee 0f 85 e2 01 00 00 4c 89
RSP: 0018:ffffc900044df850 EFLAGS: 00000246
RAX: 1ffff11004fe0ec9 RBX: ffff88806fdff3e0 RCX: ffff888031dd5a00
RDX: 0000000000000000 RSI: ffff888027f075d0 RDI: ffff88806fdff3e8
RBP: 00000000000000be R08: ffffffff815fb06a R09: 1ffff11004b0e483
R10: dffffc0000000000 R11: ffffed1004b0e484 R12: 0000000000003000
R13: ffff888025872388 R14: 00000000000000be R15: dffffc0000000000
 dup_mmap kernel/fork.c:741 [inline]
 dup_mm kernel/fork.c:1691 [inline]
 copy_mm+0x10d0/0x1fd0 kernel/fork.c:1743
 copy_process+0x1845/0x3d50 kernel/fork.c:2394
 kernel_clone+0x226/0x8e0 kernel/fork.c:2806
 __do_sys_clone kernel/fork.c:2949 [inline]
 __se_sys_clone kernel/fork.c:2933 [inline]
 __x64_sys_clone+0x258/0x2a0 kernel/fork.c:2933
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f67487c7a12
Code: 41 5d 41 5e 41 5f c3 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 e7 43 0f 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffda9cfb8a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f67487c7a12
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 000055681a704b70 R08: 0000000000000000 R09: 0000000000000000
R10: 00007f674868d650 R11: 0000000000000246 R12: 0000000000000084
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000024
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:tty_insert_flip_char include/linux/tty_flip.h:67 [inline]
RIP: 0010:qt2_process_read_urb drivers/usb/serial/quatech2.c:538 [inline]
RIP: 0010:qt2_read_bulk_callback+0x3b2/0x1160 drivers/usb/serial/quatech2.c:574
Code: 00 00 42 0f b6 04 28 84 c0 0f 85 e0 08 00 00 c6 84 24 d0 00 00 00 00 48 8b 44 24 08 48 8d 98 20 01 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 0f 1b 81 fa 4c 8b 3b 4d 8d 67 08
RSP: 0018:ffffc90000007720 EFLAGS: 00010006
RAX: 0000000000000024 RBX: 0000000000000120 RCX: ffffc90000007700
RDX: ffffc90002203000 RSI: 000000000000007a RDI: 000000000000007b
RBP: ffffc90000007870 R08: ffffffff8784cba6 R09: 1ffffffff203303e
R10: dffffc0000000000 R11: fffffbfff203303f R12: ffff88806ce31813
R13: dffffc0000000000 R14: 00000000000000a5 R15: ffff88803035b800
FS:  00007f674868d380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30f1aff8 CR3: 000000005f8b6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
   7:	84 c0                	test   %al,%al
   9:	0f 85 e0 08 00 00    	jne    0x8ef
   f:	c6 84 24 d0 00 00 00 	movb   $0x0,0xd0(%rsp)
  16:	00
  17:	48 8b 44 24 08       	mov    0x8(%rsp),%rax
  1c:	48 8d 98 20 01 00 00 	lea    0x120(%rax),%rbx
  23:	48 89 d8             	mov    %rbx,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 08                	je     0x39
  31:	48 89 df             	mov    %rbx,%rdi
  34:	e8 0f 1b 81 fa       	call   0xfa811b48
  39:	4c 8b 3b             	mov    (%rbx),%r15
  3c:	4d 8d 67 08          	lea    0x8(%r15),%r12