------------[ cut here ]------------ usb 5-1: BOGUS control dir, pipe 80001780 doesn't match bRequestType c0 WARNING: drivers/usb/core/urb.c:414 at usb_submit_urb+0x105c/0x18d0 drivers/usb/core/urb.c:412, CPU#0: syz.3.405/7345 Modules linked in: CPU: 0 UID: 0 PID: 7345 Comm: syz.3.405 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:usb_submit_urb+0x111c/0x18d0 drivers/usb/core/urb.c:412 Code: b8 00 00 00 00 00 fc ff df 0f b6 44 05 00 84 c0 0f 85 a7 05 00 00 45 0f b6 45 00 48 8b 3c 24 48 8b 74 24 20 4c 89 fa 44 89 f1 <67> 48 0f b9 3a 49 bf 00 00 00 00 00 fc ff df e9 b7 f2 ff ff 89 e9 RSP: 0018:ffffc90002f77660 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88807d6d3c00 RCX: 0000000080001780 RDX: ffff888079140d40 RSI: ffffffff8c1409c0 RDI: ffffffff8f8ee220 RBP: 1ffff110058936a4 R08: 00000000000000c0 R09: 0000000000000000 R10: ffffc90002f77760 R11: fffff520005eeef8 R12: ffff888056c49100 R13: ffff88802c49b520 R14: 0000000080001780 R15: ffff888079140d40 FS: 0000000000000000(0000) GS:ffff888125e35000(0063) knlGS:00000000f549db40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7fd6e40 CR3: 000000007927a000 CR4: 00000000003526f0 Call Trace: usb_start_wait_urb+0x115/0x4f0 drivers/usb/core/message.c:59 usb_internal_control_msg drivers/usb/core/message.c:103 [inline] usb_control_msg+0x232/0x3e0 drivers/usb/core/message.c:154 dib0700_ctrl_rd drivers/media/usb/dvb-usb/dib0700_core.c:95 [inline] dib0700_i2c_xfer_legacy drivers/media/usb/dvb-usb/dib0700_core.c:315 [inline] dib0700_i2c_xfer+0xba7/0xf70 drivers/media/usb/dvb-usb/dib0700_core.c:361 __i2c_transfer+0x871/0x2110 drivers/i2c/i2c-core-base.c:-1 i2c_transfer+0x25b/0x3a0 drivers/i2c/i2c-core-base.c:2317 i2cdev_ioctl_rdwr+0x460/0x740 drivers/i2c/i2c-dev.c:306 compat_i2cdev_ioctl+0x5a8/0x5c0 drivers/i2c/i2c-dev.c:575 __do_compat_sys_ioctl fs/ioctl.c:695 [inline] __se_compat_sys_ioctl fs/ioctl.c:638 [inline] __ia32_compat_sys_ioctl+0x543/0x840 fs/ioctl.c:638 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x1f7/0x590 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x34/0x80 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf70ad539 Code: 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f549d55c EFLAGS: 00000206 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 0000000000000707 RDX: 0000000080000080 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: b8 00 00 00 00 mov $0x0,%eax 5: 00 fc add %bh,%ah 7: ff (bad) 8: df 0f fisttps (%rdi) a: b6 44 mov $0x44,%dh c: 05 00 84 c0 0f add $0xfc08400,%eax 11: 85 a7 05 00 00 45 test %esp,0x45000005(%rdi) 17: 0f b6 45 00 movzbl 0x0(%rbp),%eax 1b: 48 8b 3c 24 mov (%rsp),%rdi 1f: 48 8b 74 24 20 mov 0x20(%rsp),%rsi 24: 4c 89 fa mov %r15,%rdx 27: 44 89 f1 mov %r14d,%ecx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 36: fc ff df 39: e9 b7 f2 ff ff jmp 0xfffff2f5 3e: 89 e9 mov %ebp,%ecx