Oops: general protection fault, probably for non-canonical address 0xdffffc000000000c: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000060-0x0000000000000067]
CPU: 0 UID: 0 PID: 13203 Comm: syz.5.1739 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:configfs_depend_item_unlocked+0x96/0x420 fs/configfs/dir.c:1246
Code: df e8 1e 88 00 00 89 c5 31 ff 89 c6 e8 93 55 57 ff 85 ed 74 0a e8 7a 50 57 ff 4d 89 fd eb 6c 48 8d 7b 60 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 05 e8 fe 89 c2 ff 4c 8b 6b 60 48 89 df e8 e2 87
RSP: 0018:ffffc90004b1fad8 EFLAGS: 00010206
RAX: 000000000000000c RBX: 0000000000000000 RCX: ffff88802881dd00
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000060
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000060
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f61b47 R12: ffffffff8eca0680
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff8880121e9000
FS:  00007f8d3fda46c0(0000) GS:ffff888125c07000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c7f5377950 CR3: 0000000060462000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 usbg_make_tpg+0x1f6/0x590 drivers/usb/gadget/function/f_tcm.c:1686
 target_fabric_make_tpg+0xa8/0x6d0 drivers/target/target_core_fabric_configfs.c:939
 configfs_mkdir+0x4f6/0x9e0 fs/configfs/dir.c:1360
 vfs_mkdir+0x408/0x620 fs/namei.c:5410
 filename_mkdirat+0x289/0x520 fs/namei.c:5443
 __do_sys_mkdir fs/namei.c:5470 [inline]
 __se_sys_mkdir+0x34/0x150 fs/namei.c:5467
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8d41b8e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8d3fda4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 00007f8d41e16180 RCX: 00007f8d41b8e0d9
RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000200000000600
RBP: 00007f8d41c25024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8d41e16218 R14: 00007f8d41e16180 R15: 00007ffd0a28efd8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:configfs_depend_item_unlocked+0x96/0x420 fs/configfs/dir.c:1246
Code: df e8 1e 88 00 00 89 c5 31 ff 89 c6 e8 93 55 57 ff 85 ed 74 0a e8 7a 50 57 ff 4d 89 fd eb 6c 48 8d 7b 60 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 74 05 e8 fe 89 c2 ff 4c 8b 6b 60 48 89 df e8 e2 87
RSP: 0018:ffffc90004b1fad8 EFLAGS: 00010206
RAX: 000000000000000c RBX: 0000000000000000 RCX: ffff88802881dd00
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000060
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f61b47 R12: ffffffff8eca0680
R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff8880121e9000
FS:  00007f8d3fda46c0(0000) GS:ffff888125c07000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd92953ff8 CR3: 0000000060462000 CR4: 00000000003526f0
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	e8 1e 88 00 00       	call   0x8823
   5:	89 c5                	mov    %eax,%ebp
   7:	31 ff                	xor    %edi,%edi
   9:	89 c6                	mov    %eax,%esi
   b:	e8 93 55 57 ff       	call   0xff5755a3
  10:	85 ed                	test   %ebp,%ebp
  12:	74 0a                	je     0x1e
  14:	e8 7a 50 57 ff       	call   0xff575093
  19:	4d 89 fd             	mov    %r15,%r13
  1c:	eb 6c                	jmp    0x8a
  1e:	48 8d 7b 60          	lea    0x60(%rbx),%rdi
  22:	48 89 f8             	mov    %rdi,%rax
  25:	48 c1 e8 03          	shr    $0x3,%rax
* 29:	42 80 3c 30 00       	cmpb   $0x0,(%rax,%r14,1) <-- trapping instruction
  2e:	74 05                	je     0x35
  30:	e8 fe 89 c2 ff       	call   0xffc28a33
  35:	4c 8b 6b 60          	mov    0x60(%rbx),%r13
  39:	48 89 df             	mov    %rbx,%rdi
  3c:	e8                   	.byte 0xe8
  3d:	e2 87                	loop   0xffffffc6