RSP: 002b:00007f4f7e1baef0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4f7d750320 RCX: 00007f4f7d39f7ab
RDX: 00007f4f7d75034c RSI: 0000000040095505 RDI: 000000000000000d
RBP: 000000000000000d R08: 0000000000000000 R09: 0000000000000039
R10: 000000000000000d R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4f7d750530 R14: 0000000000000000 R15: 00007f4f7d75034e
 </TASK>
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 UID: 0 PID: 2826 Comm: syz.0.686 Not tainted syzkaller #0 696230b0126414627535663eb488b8b4d474df7d
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:do_trace_event_raw_event_udc_log_req drivers/usb/gadget/udc/trace.h:242 [inline]
RIP: 0010:trace_event_raw_event_udc_log_req+0x1c1/0x6e0 drivers/usb/gadget/udc/trace.h:223
Code: 1c 3f 4c 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 ce 02 00 00 41 c6 07 00 48 8b 54 24 08 4c 8d 7a 08 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 c8 02 00 00 41 8b 1f 4d 8d 7c 24 0c 4c
RSP: 0018:ffffc900116afa60 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 000000000000000b RCX: ffffffff83be2d94
RDX: 0000000000000000 RSI: ffffffff866ddec0 RDI: ffff888121328394
RBP: ffffc900116afb58 R08: 75622d6e69327065 R09: 6b6c75622d6e6932
R10: dffffc0000000000 R11: ffffed1024265074 R12: ffff888121328354
R13: ffffffff866ddec0 R14: dffffc0000000000 R15: 0000000000000008
FS:  00007f4f7e1bd6c0(0000) GS:ffff8881f6d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f95bf589d58 CR3: 000000011ba8e000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 trace_usb_ep_alloc_request drivers/usb/gadget/udc/trace.h:264 [inline]
 usb_ep_alloc_request+0x16e/0x1c0 drivers/usb/gadget/udc/core.c:211
 raw_ioctl_ep_enable drivers/usb/gadget/legacy/raw_gadget.c:891 [inline]
 raw_ioctl+0x26f8/0x37a0 drivers/usb/gadget/legacy/raw_gadget.c:1319
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl+0x123/0x1b0 fs/ioctl.c:892
 __x64_sys_ioctl+0x7f/0xa0 fs/ioctl.c:892
 x64_sys_call+0x1878/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:17
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f4f7d39f7ab
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f4f7e1baef0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f4f7d750320 RCX: 00007f4f7d39f7ab
RDX: 00007f4f7d75034c RSI: 0000000040095505 RDI: 000000000000000d
RBP: 000000000000000d R08: 0000000000000000 R09: 0000000000000039
R10: 000000000000000d R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4f7d750530 R14: 0000000000000000 R15: 00007f4f7d75034e
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_trace_event_raw_event_udc_log_req drivers/usb/gadget/udc/trace.h:242 [inline]
RIP: 0010:trace_event_raw_event_udc_log_req+0x1c1/0x6e0 drivers/usb/gadget/udc/trace.h:223
Code: 1c 3f 4c 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 0f 85 ce 02 00 00 41 c6 07 00 48 8b 54 24 08 4c 8d 7a 08 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 c8 02 00 00 41 8b 1f 4d 8d 7c 24 0c 4c
RSP: 0018:ffffc900116afa60 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 000000000000000b RCX: ffffffff83be2d94
RDX: 0000000000000000 RSI: ffffffff866ddec0 RDI: ffff888121328394
RBP: ffffc900116afb58 R08: 75622d6e69327065 R09: 6b6c75622d6e6932
R10: dffffc0000000000 R11: ffffed1024265074 R12: ffff888121328354
R13: ffffffff866ddec0 R14: dffffc0000000000 R15: 0000000000000008
FS:  00007f4f7e1bd6c0(0000) GS:ffff8881f6d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f95bf589d58 CR3: 000000011ba8e000 CR4: 00000000003526b0
----------------
Code disassembly (best guess):
   0:	1c 3f                	sbb    $0x3f,%al
   2:	4c 89 f8             	mov    %r15,%rax
   5:	48 c1 e8 03          	shr    $0x3,%rax
   9:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax
   e:	84 c0                	test   %al,%al
  10:	0f 85 ce 02 00 00    	jne    0x2e4
  16:	41 c6 07 00          	movb   $0x0,(%r15)
  1a:	48 8b 54 24 08       	mov    0x8(%rsp),%rdx
  1f:	4c 8d 7a 08          	lea    0x8(%rdx),%r15
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 30       	movzbl (%rax,%r14,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 c8 02 00 00    	jne    0x2ff
  37:	41 8b 1f             	mov    (%r15),%ebx
  3a:	4d 8d 7c 24 0c       	lea    0xc(%r12),%r15
  3f:	4c                   	rex.WR