UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000019: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x00000000000000c8-0x00000000000000cf] CPU: 0 UID: 0 PID: 8714 Comm: syz.1.668 Not tainted 6.16.0-syzkaller-12016-gbec077162bd0 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:577 [inline] RIP: 0010:__mutex_lock+0x13b/0x1360 kernel/locking/mutex.c:760 Code: 20 43 ab 99 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 3d 10 00 00 83 3d 03 1f 31 0e 00 75 23 49 8d 7c 24 60 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 19 f2 a8 f6 4d 39 64 24 60 0f 85 3f 0f 00 RSP: 0018:ffffc9001dbfeec0 EFLAGS: 00010202 RAX: 0000000000000019 RBX: ffffc9001dbfefa0 RCX: ffffffff99ab4303 RDX: ffff888029f48000 RSI: ffffffff8dba3778 RDI: 00000000000000c8 RBP: ffffc9001dbff078 R08: ffffc9001dbfefe7 R09: 0000000000000000 R10: ffffc9001dbfefc0 R11: fffff52003b7fdfd R12: 0000000000000068 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125c21000(0063) knlGS:00000000f54deb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000005720999c CR3: 000000007fb34000 CR4: 00000000003526f0 Call Trace: dvb_usbv2_generic_write+0x26/0x60 drivers/media/usb/dvb-usb-v2/dvb_usb_urb.c:77 mxl111sf_ctrl_msg+0x16a/0x2e0 drivers/media/usb/dvb-usb-v2/mxl111sf.c:73 mxl111sf_write_reg+0xa0/0x180 drivers/media/usb/dvb-usb-v2/mxl111sf.c:123 mxl111sf_i2c_start drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:130 [inline] mxl111sf_i2c_sw_xfer_msg drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:-1 [inline] mxl111sf_i2c_xfer+0x461/0x4f00 drivers/media/usb/dvb-usb-v2/mxl111sf-i2c.c:813 __i2c_transfer+0x871/0x2170 drivers/i2c/i2c-core-base.c:-1 i2c_smbus_xfer_emulated drivers/i2c/i2c-core-smbus.c:470 [inline] __i2c_smbus_xfer+0xfb0/0x1e50 drivers/i2c/i2c-core-smbus.c:608 i2c_smbus_xfer+0x275/0x3c0 drivers/i2c/i2c-core-smbus.c:546 i2cdev_ioctl_smbus+0x43d/0x6d0 drivers/i2c/i2c-dev.c:389 compat_i2cdev_ioctl+0x299/0x5c0 drivers/i2c/i2c-dev.c:585 __do_compat_sys_ioctl fs/ioctl.c:696 [inline] __se_compat_sys_ioctl fs/ioctl.c:639 [inline] __ia32_compat_sys_ioctl+0x540/0x840 fs/ioctl.c:639 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0xb6/0x2b0 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x34/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf70ee539 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:00000000f54de55c EFLAGS: 00000206 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 0000000000000720 RDX: 00000000800003c0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:577 [inline] RIP: 0010:__mutex_lock+0x13b/0x1360 kernel/locking/mutex.c:760 Code: 20 43 ab 99 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 3d 10 00 00 83 3d 03 1f 31 0e 00 75 23 49 8d 7c 24 60 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 19 f2 a8 f6 4d 39 64 24 60 0f 85 3f 0f 00 RSP: 0018:ffffc9001dbfeec0 EFLAGS: 00010202 RAX: 0000000000000019 RBX: ffffc9001dbfefa0 RCX: ffffffff99ab4303 RDX: ffff888029f48000 RSI: ffffffff8dba3778 RDI: 00000000000000c8 RBP: ffffc9001dbff078 R08: ffffc9001dbfefe7 R09: 0000000000000000 R10: ffffc9001dbfefc0 R11: fffff52003b7fdfd R12: 0000000000000068 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125d21000(0063) knlGS:00000000f54deb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000032d22ff8 CR3: 000000007fb34000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 20 43 ab and %al,-0x55(%rbx) 3: 99 cltd 4: 48 c1 e8 03 shr $0x3,%rax 8: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax d: 84 c0 test %al,%al f: 0f 85 3d 10 00 00 jne 0x1052 15: 83 3d 03 1f 31 0e 00 cmpl $0x0,0xe311f03(%rip) # 0xe311f1f 1c: 75 23 jne 0x41 1e: 49 8d 7c 24 60 lea 0x60(%r12),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 74 05 je 0x36 31: e8 19 f2 a8 f6 call 0xf6a8f24f 36: 4d 39 64 24 60 cmp %r12,0x60(%r12) 3b: 0f .byte 0xf 3c: 85 3f test %edi,(%rdi) 3e: 0f .byte 0xf