ksys_ioctl fs/ioctl.c:742 [inline]
__do_sys_ioctl fs/ioctl.c:749 [inline]
__se_sys_ioctl fs/ioctl.c:747 [inline]
__x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747
do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x5c/0xc1
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 376 Comm: syz-executor921 Not tainted 5.4.242-syzkaller-00065-g10e0626a3202 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:__device_attach+0xb4/0x490 drivers/base/dd.c:909
Code: 5c 24 68 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 3d 32 fd fe 4c 8b 2b 49 8d 9d c8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 51 03 00 00 0f b6 1b 89 de 83 e6 01 45
RSP: 0018:ffff8881dbe779c0 EFLAGS: 00010202
RAX: 0000000000000019 RBX: 00000000000000c8 RCX: ffffffff844f0c25
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881dbe77940
RBP: ffff8881dbe77a90 R08: dffffc0000000000 R09: ffffed103b7cef29
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881dc493030
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000555555b75300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e3b9542a4 CR3: 00000001dc3a0000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
proc_ioctl+0x441/0x610 drivers/usb/core/devio.c:2259
proc_ioctl_default+0xb9/0xf0 drivers/usb/core/devio.c:2294
usbdev_do_ioctl+0x13e5/0x1e40 drivers/usb/core/devio.c:2650
usbdev_ioctl+0x1e/0x30 drivers/usb/core/devio.c:2710
do_vfs_ioctl+0x742/0x1720 fs/ioctl.c:47
ksys_ioctl fs/ioctl.c:742 [inline]
__do_sys_ioctl fs/ioctl.c:749 [inline]
__se_sys_ioctl fs/ioctl.c:747 [inline]
__x64_sys_ioctl+0xd4/0x110 fs/ioctl.c:747
do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace 741c69ad8305fde0 ]---
RIP: 0010:__device_attach+0xb4/0x490 drivers/base/dd.c:909
Code: 5c 24 68 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 3d 32 fd fe 4c 8b 2b 49 8d 9d c8 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 51 03 00 00 0f b6 1b 89 de 83 e6 01 45
RSP: 0018:ffff8881dbe779c0 EFLAGS: 00010202
RAX: 0000000000000019 RBX: 00000000000000c8 RCX: ffffffff844f0c25
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881dbe77940
RBP: ffff8881dbe77a90 R08: dffffc0000000000 R09: ffffed103b7cef29
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881dc493030
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000555555b75300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e3b9542a4 CR3: 00000001dc3a0000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 5c pop %rsp
1: 24 68 and $0x68,%al
3: 48 89 d8 mov %rbx,%rax
6: 48 c1 e8 03 shr $0x3,%rax
a: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1)
f: 74 08 je 0x19
11: 48 89 df mov %rbx,%rdi
14: e8 3d 32 fd fe callq 0xfefd3256
19: 4c 8b 2b mov (%rbx),%r13
1c: 49 8d 9d c8 00 00 00 lea 0xc8(%r13),%rbx
23: 48 89 d8 mov %rbx,%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 51 03 00 00 jne 0x388
37: 0f b6 1b movzbl (%rbx),%ebx
3a: 89 de mov %ebx,%esi
3c: 83 e6 01 and $0x1,%esi
3f: 45 rex.RB