------------[ cut here ]------------ usb 5-1: BOGUS control dir, pipe 80002b80 doesn't match bRequestType c0 WARNING: drivers/usb/core/urb.c:412 at usb_submit_urb+0x153e/0x1970 drivers/usb/core/urb.c:412, CPU#0: syz.4.2769/17725 Modules linked in: CPU: 0 UID: 0 PID: 17725 Comm: syz.4.2769 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+0x1549/0x1970 drivers/usb/core/urb.c:412 Code: 30 48 89 7c 24 38 e8 a6 66 a8 fa 48 8b 7c 24 38 e8 9c 71 d0 fe 48 89 c6 48 8d 3d d2 f6 7d 09 48 8b 54 24 30 45 89 e8 44 89 f9 <67> 48 0f b9 3a e9 fd ed ff ff 48 89 7c 24 30 e8 73 66 a8 fa 48 8b RSP: 0018:ffffc900041cf970 EFLAGS: 00010287 RAX: ffffffff8c5456c0 RBX: ffff8880503c1500 RCX: 0000000080002b80 RDX: ffff8880525cd660 RSI: ffffffff8c5456c0 RDI: ffffffff90948c10 RBP: ffff88805b144058 R08: 00000000000000c0 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888057510f80 R13: 00000000000000c0 R14: 0000000000000001 R15: 0000000080002b80 FS: 00007f26666116c0(0000) GS:ffff8881248f2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3f831b CR3: 0000000038c2a000 CR4: 00000000003526f0 Call Trace: usb_start_wait_urb+0x104/0x4e0 drivers/usb/core/message.c:59 usb_internal_control_msg drivers/usb/core/message.c:103 [inline] usb_control_msg+0x326/0x4a0 drivers/usb/core/message.c:154 dib0700_ctrl_rd+0x1b2/0x350 drivers/media/usb/dvb-usb/dib0700_core.c:95 dib0700_i2c_xfer_legacy drivers/media/usb/dvb-usb/dib0700_core.c:315 [inline] dib0700_i2c_xfer+0xa9a/0xe40 drivers/media/usb/dvb-usb/dib0700_core.c:361 __i2c_transfer+0x6b6/0x2100 drivers/i2c/i2c-core-base.c:2261 i2c_transfer drivers/i2c/i2c-core-base.c:2317 [inline] i2c_transfer+0x1da/0x380 drivers/i2c/i2c-core-base.c:2293 i2cdev_ioctl_rdwr+0x373/0x710 drivers/i2c/i2c-dev.c:306 i2cdev_ioctl+0x628/0x840 drivers/i2c/i2c-dev.c:467 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+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f266578f749 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2666611038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f26659e5fa0 RCX: 00007f266578f749 RDX: 0000200000000200 RSI: 0000000000000707 RDI: 0000000000000004 RBP: 00007f2665813f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f26659e6038 R14: 00007f26659e5fa0 R15: 00007fff78f2dd88 ---------------- Code disassembly (best guess): 0: 30 48 89 xor %cl,-0x77(%rax) 3: 7c 24 jl 0x29 5: 38 e8 cmp %ch,%al 7: a6 cmpsb %es:(%rdi),%ds:(%rsi) 8: 66 a8 fa data16 test $0xfa,%al b: 48 8b 7c 24 38 mov 0x38(%rsp),%rdi 10: e8 9c 71 d0 fe call 0xfed071b1 15: 48 89 c6 mov %rax,%rsi 18: 48 8d 3d d2 f6 7d 09 lea 0x97df6d2(%rip),%rdi # 0x97df6f1 1f: 48 8b 54 24 30 mov 0x30(%rsp),%rdx 24: 45 89 e8 mov %r13d,%r8d 27: 44 89 f9 mov %r15d,%ecx * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 fd ed ff ff jmp 0xffffee31 34: 48 89 7c 24 30 mov %rdi,0x30(%rsp) 39: e8 73 66 a8 fa call 0xfaa866b1 3e: 48 rex.W 3f: 8b .byte 0x8b