RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000005
RBP: 00007f3422513fd0 R08: 0000000000000001 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000200000000000 R14: 0000000000000000 R15: 0000000000000000
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 5130 Comm: syz.4.1368 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:trace_event_raw_event_udc_log_req+0x1a8/0x6d0 drivers/usb/gadget/udc/trace.h:232
Code: 92 fe 49 8b 4d 00 be 00 02 00 00 4c 89 ff 48 c7 c2 a0 34 58 85 e8 d8 46 4f ff 48 8b 54 24 10 4c 8d 6a 08 4c 89 e8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 f6 02 00 00 45 8b 7d 00 4d 8d 6c 24 0c
RSP: 0018:ffffc90001b57960 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 1ffff9200036af30 RCX: 83e33f043d9abf00
RDX: 0000000000000000 RSI: 0000000000027253 RDI: 0000000000027254
RBP: ffffc90001b57a48 R08: ffff8881192dbc00 R09: 0000000000000012
R10: 0000000000000012 R11: 0000000000000002 R12: ffff88812e93f364
R13: 0000000000000008 R14: dffffc0000000000 R15: ffff88812e93f3a4
FS:  00007f34225156c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000007fe0 CR3: 000000011a8eb000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 trace_usb_ep_alloc_request drivers/usb/gadget/udc/trace.h:254 [inline]
 usb_ep_alloc_request+0x12c/0x180 drivers/usb/gadget/udc/core.c:187
 gadget_bind+0xe1/0x580 drivers/usb/gadget/legacy/raw_gadget.c:292
 udc_bind_to_driver+0x24e/0x6d0 drivers/usb/gadget/udc/core.c:1573
 usb_gadget_probe_driver+0x1fc/0x380 drivers/usb/gadget/udc/core.c:1639
 raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:548 [inline]
 raw_ioctl+0x114d/0x3040 drivers/usb/gadget/legacy/raw_gadget.c:1255
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:739
 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:739
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f3423abbdeb
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:00007f3422512f00 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f3423abbdeb
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000005
RBP: 00007f3422513fd0 R08: 0000000000000001 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000200000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 190f4db0d8e2ef39 ]---
RIP: 0010:trace_event_raw_event_udc_log_req+0x1a8/0x6d0 drivers/usb/gadget/udc/trace.h:232
Code: 92 fe 49 8b 4d 00 be 00 02 00 00 4c 89 ff 48 c7 c2 a0 34 58 85 e8 d8 46 4f ff 48 8b 54 24 10 4c 8d 6a 08 4c 89 e8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 f6 02 00 00 45 8b 7d 00 4d 8d 6c 24 0c
RSP: 0018:ffffc90001b57960 EFLAGS: 00010202
RAX: 0000000000000001 RBX: 1ffff9200036af30 RCX: 83e33f043d9abf00
RDX: 0000000000000000 RSI: 0000000000027253 RDI: 0000000000027254
RBP: ffffc90001b57a48 R08: ffff8881192dbc00 R09: 0000000000000012
R10: 0000000000000012 R11: 0000000000000002 R12: ffff88812e93f364
R13: 0000000000000008 R14: dffffc0000000000 R15: ffff88812e93f3a4
FS:  00007f34225156c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000007fe0 CR3: 000000011a8eb000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	92                   	xchg   %eax,%edx
   1:	fe 49 8b             	decb   -0x75(%rcx)
   4:	4d 00 be 00 02 00 00 	rex.WRB add %r15b,0x200(%r14)
   b:	4c 89 ff             	mov    %r15,%rdi
   e:	48 c7 c2 a0 34 58 85 	mov    $0xffffffff855834a0,%rdx
  15:	e8 d8 46 4f ff       	call   0xff4f46f2
  1a:	48 8b 54 24 10       	mov    0x10(%rsp),%rdx
  1f:	4c 8d 6a 08          	lea    0x8(%rdx),%r13
  23:	4c 89 e8             	mov    %r13,%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 f6 02 00 00    	jne    0x32d
  37:	45 8b 7d 00          	mov    0x0(%r13),%r15d
  3b:	4d 8d 6c 24 0c       	lea    0xc(%r12),%r13