------------[ cut here ]------------ usb 1-1: BOGUS control dir, pipe 80000780 doesn't match bRequestType c0 WARNING: drivers/usb/core/urb.c:411 at usb_submit_urb+0x1573/0x1910 drivers/usb/core/urb.c:411, CPU#0: syz.3.227/6921 Modules linked in: CPU: 0 UID: 0 PID: 6921 Comm: syz.3.227 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:usb_submit_urb+0x157e/0x1910 drivers/usb/core/urb.c:411 Code: d2 74 5d 48 89 54 24 40 e8 4f 67 b7 fa 4c 89 ef e8 67 9b de fe 48 89 c6 48 8d 3d 2d ef 94 09 48 8b 54 24 40 45 89 f8 44 89 f1 <67> 48 0f b9 3a e9 c7 ed ff ff e8 23 67 b7 fa 89 ee bf ff 00 00 00 RSP: 0018:ffffc90006db7680 EFLAGS: 00010293 RAX: ffffffff8c80f0e0 RBX: ffff8880380e8400 RCX: 0000000080000780 RDX: ffff88807888a820 RSI: ffffffff8c80f0e0 RDI: ffffffff90e67fd0 RBP: ffff88802d39b058 R08: 00000000000000c0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880472cb9a0 R13: ffff88802d39b0b0 R14: 0000000080000780 R15: 00000000000000c0 FS: 00007ff4cab026c0(0000) GS:ffff88812433c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000cd4000 CR3: 0000000034823000 CR4: 00000000003526f0 Call Trace: usb_start_wait_urb+0x10e/0x580 drivers/usb/core/message.c:62 usb_internal_control_msg drivers/usb/core/message.c:117 [inline] usb_control_msg+0x328/0x4b0 drivers/usb/core/message.c:167 dtv5100_i2c_msg+0x1be/0x340 drivers/media/usb/dvb-usb/dtv5100.c:65 dtv5100_i2c_xfer+0x131/0x3d0 drivers/media/usb/dvb-usb/dtv5100.c:91 __i2c_transfer+0x5d9/0x17f0 drivers/i2c/i2c-core-base.c:2261 i2c_smbus_xfer_emulated+0x22a/0x10e0 drivers/i2c/i2c-core-smbus.c:470 __i2c_smbus_xfer+0x5b7/0x1080 drivers/i2c/i2c-core-smbus.c:608 i2c_smbus_xfer+0x185/0x3c0 drivers/i2c/i2c-core-smbus.c:546 i2cdev_ioctl_smbus+0x389/0xac0 drivers/i2c/i2c-dev.c:389 i2cdev_ioctl+0x3cf/0x830 drivers/i2c/i2c-dev.c:478 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff4c9b9c799 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:00007ff4cab02028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff4c9e16090 RCX: 00007ff4c9b9c799 RDX: 0000200000000980 RSI: 0000000000000720 RDI: 0000000000000006 RBP: 00007ff4c9c32c99 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff4c9e16128 R14: 00007ff4c9e16090 R15: 00007ffd8979c798 ---------------- Code disassembly (best guess): 0: d2 74 5d 48 shlb %cl,0x48(%rbp,%rbx,2) 4: 89 54 24 40 mov %edx,0x40(%rsp) 8: e8 4f 67 b7 fa call 0xfab7675c d: 4c 89 ef mov %r13,%rdi 10: e8 67 9b de fe call 0xfede9b7c 15: 48 89 c6 mov %rax,%rsi 18: 48 8d 3d 2d ef 94 09 lea 0x994ef2d(%rip),%rdi # 0x994ef4c 1f: 48 8b 54 24 40 mov 0x40(%rsp),%rdx 24: 45 89 f8 mov %r15d,%r8d 27: 44 89 f1 mov %r14d,%ecx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 c7 ed ff ff jmp 0xffffedfb 34: e8 23 67 b7 fa call 0xfab7675c 39: 89 ee mov %ebp,%esi 3b: bf ff 00 00 00 mov $0xff,%edi