------------[ cut here ]------------ URB ffff888112540000 submitted while active WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x1689/0x19b0 drivers/usb/core/urb.c:379, CPU#0: syz.0.163/5871 Modules linked in: CPU: 0 UID: 0 PID: 5871 Comm: syz.0.163 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:usb_submit_urb+0x168c/0x19b0 drivers/usb/core/urb.c:379 Code: 00 48 8b 04 24 48 8b 90 b0 00 00 00 e9 70 ff ff ff bb ed ff ff ff e9 ac f1 ff ff e8 be 79 b2 fc 48 8d 3d d7 b6 19 06 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 8e f1 ff ff c7 44 24 30 00 00 00 RSP: 0018:ffffc90013e2fb50 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888112540000 RCX: 0000000000000000 RDX: ffff888112d28000 RSI: ffff888112540000 RDI: ffffffff8b1c35d0 RBP: ffff88810ffb5090 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88810ffb52b8 R14: ffff88810ffb5050 R15: ffff88810ffb5050 FS: 00007f59984c56c0(0000) GS:ffff8882683e4000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2d13ca CR3: 00000001149e4000 CR4: 00000000003506f0 Call Trace: service_outstanding_interrupt.isra.0+0x166/0x270 drivers/usb/class/cdc-wdm.c:509 wdm_read+0x8a8/0xaf0 drivers/usb/class/cdc-wdm.c:615 vfs_read+0x1e4/0xb40 fs/read_write.c:572 ksys_read+0x12a/0x250 fs/read_write.c:716 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x119/0x710 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5999aae159 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:00007f59984c5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f5999d36180 RCX: 00007f5999aae159 RDX: 00000000000000b3 RSI: 0000200000000340 RDI: 000000000000001e RBP: 00007f5999b45024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f5999d36218 R14: 00007f5999d36180 R15: 00007ffc3efb3688 ---------------- Code disassembly (best guess): 0: 00 48 8b add %cl,-0x75(%rax) 3: 04 24 add $0x24,%al 5: 48 8b 90 b0 00 00 00 mov 0xb0(%rax),%rdx c: e9 70 ff ff ff jmp 0xffffff81 11: bb ed ff ff ff mov $0xffffffed,%ebx 16: e9 ac f1 ff ff jmp 0xfffff1c7 1b: e8 be 79 b2 fc call 0xfcb279de 20: 48 8d 3d d7 b6 19 06 lea 0x619b6d7(%rip),%rdi # 0x619b6fe 27: 48 89 de mov %rbx,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: bb f0 ff ff ff mov $0xfffffff0,%ebx 34: e9 8e f1 ff ff jmp 0xfffff1c7 39: c7 .byte 0xc7 3a: 44 24 30 rex.R and $0x30,%al 3d: 00 00 add %al,(%rax)