fix incorrect question
(cherry picked from commit 02ecba6ec7f97b15120f33b8e34e7765a12ef94f)
This commit is contained in:
parent
7f1bf4471e
commit
fdad35ccf0
61
0004-fix-incorrect-value.patch
Normal file
61
0004-fix-incorrect-value.patch
Normal file
@ -0,0 +1,61 @@
|
||||
From 5d7d3d14b660ef453e657dc661a380649e6f0f7d Mon Sep 17 00:00:00 2001
|
||||
From: Dingyan Li <18500469033@163.com>
|
||||
Date: Sat, 11 Mar 2023 21:48:59 +0800
|
||||
Subject: [PATCH] Fix an incorrect length value in hid descriptor.
|
||||
|
||||
While dumping descriptors of a USB hid device, I saw a weird line:
|
||||
'Report Descriptor: (length is -1)'
|
||||
|
||||
This is because variable 'n' is used to hold a potential negative
|
||||
integer value even though it's an unsigned int type in function
|
||||
dump_hid_device. When usb_control_msg() fails, overflow happens.
|
||||
It will always pass the 'if' statement below and call dump_report_desc(),
|
||||
where this weird line finally shows up.
|
||||
|
||||
To fix it, an int type should be used to avoid overflow.
|
||||
|
||||
Signed-off-by: Dingyan Li <18500469033@163.com>
|
||||
---
|
||||
lsusb.c | 10 ++++++----
|
||||
1 file changed, 6 insertions(+), 4 deletions(-)
|
||||
|
||||
diff --git a/lsusb.c b/lsusb.c
|
||||
index 90825c5..46c9b49 100644
|
||||
--- a/lsusb.c
|
||||
+++ b/lsusb.c
|
||||
@@ -2438,8 +2438,7 @@ static void dump_hid_device(libusb_device_handle *dev,
|
||||
const struct libusb_interface_descriptor *interface,
|
||||
const unsigned char *buf)
|
||||
{
|
||||
- unsigned int i, len;
|
||||
- unsigned int n;
|
||||
+ int i, len;
|
||||
unsigned char dbuf[8192];
|
||||
|
||||
if (buf[1] != LIBUSB_DT_HID)
|
||||
@@ -2474,13 +2473,13 @@ static void dump_hid_device(libusb_device_handle *dev,
|
||||
if (buf[6+3*i] != LIBUSB_DT_REPORT)
|
||||
continue;
|
||||
len = buf[7+3*i] | (buf[8+3*i] << 8);
|
||||
- if (len > (unsigned int)sizeof(dbuf)) {
|
||||
+ if (len > (int)sizeof(dbuf)) {
|
||||
printf("report descriptor too long\n");
|
||||
continue;
|
||||
}
|
||||
if (libusb_claim_interface(dev, interface->bInterfaceNumber) == 0) {
|
||||
int retries = 4;
|
||||
- n = 0;
|
||||
+ int n = 0;
|
||||
while (n < len && retries--)
|
||||
n = usb_control_msg(dev,
|
||||
LIBUSB_ENDPOINT_IN | LIBUSB_REQUEST_TYPE_STANDARD
|
||||
@@ -2495,6 +2494,9 @@ static void dump_hid_device(libusb_device_handle *dev,
|
||||
if (n < len)
|
||||
printf(" Warning: incomplete report descriptor\n");
|
||||
dump_report_desc(dbuf, n);
|
||||
+ } else {
|
||||
+ printf(" Warning: can't get report descriptor, %s\n",
|
||||
+ libusb_error_name(n));
|
||||
}
|
||||
libusb_release_interface(dev, interface->bInterfaceNumber);
|
||||
} else {
|
||||
40
0005-fix-misalignments-device-descripptor.patch
Normal file
40
0005-fix-misalignments-device-descripptor.patch
Normal file
@ -0,0 +1,40 @@
|
||||
From 4a677f085bb7b594287f9b7d598bba6c6c341fab Mon Sep 17 00:00:00 2001
|
||||
From: Dingyan Li <18500469033@163.com>
|
||||
Date: Sat, 11 Mar 2023 22:02:06 +0800
|
||||
Subject: [PATCH] Fix misalignments in hid device descripptor.
|
||||
|
||||
Extra spaces should be added when printing below lines:
|
||||
'Report Descriptors:
|
||||
** UNAVAILABLE **'
|
||||
|
||||
Signed-off-by: Dingyan Li <18500469033@163.com>
|
||||
---
|
||||
lsusb.c | 8 ++++----
|
||||
1 file changed, 4 insertions(+), 4 deletions(-)
|
||||
|
||||
diff --git a/lsusb.c b/lsusb.c
|
||||
index 46c9b49..4aba88c 100644
|
||||
--- a/lsusb.c
|
||||
+++ b/lsusb.c
|
||||
@@ -2463,8 +2463,8 @@ static void dump_hid_device(libusb_device_handle *dev,
|
||||
return;
|
||||
|
||||
if (!dev) {
|
||||
- printf(" Report Descriptors: \n"
|
||||
- " ** UNAVAILABLE **\n");
|
||||
+ printf(" Report Descriptors: \n"
|
||||
+ " ** UNAVAILABLE **\n");
|
||||
return;
|
||||
}
|
||||
|
||||
@@ -2503,8 +2503,8 @@ static void dump_hid_device(libusb_device_handle *dev,
|
||||
/* recent Linuxes require claim() for RECIP_INTERFACE,
|
||||
* so "rmmod hid" will often make these available.
|
||||
*/
|
||||
- printf(" Report Descriptors: \n"
|
||||
- " ** UNAVAILABLE **\n");
|
||||
+ printf(" Report Descriptors: \n"
|
||||
+ " ** UNAVAILABLE **\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,6 +1,6 @@
|
||||
Name: usbutils
|
||||
Version: 014
|
||||
Release: 3
|
||||
Release: 4
|
||||
Summary: Linux utilities for USB device
|
||||
License: GPLv2+
|
||||
URL: http://www.linux-usb.org/
|
||||
@ -12,6 +12,8 @@ Source2: GPL-3.0.txt
|
||||
Patch1: 0001-Fix-an-runtime-error-reported-by-undefind-sanitizer.patch
|
||||
Patch2: 0002-lsusb-h-returns-an-error.patch
|
||||
patch3: 0003-lsusb-h-fixups.patch
|
||||
Patch4: 0004-fix-incorrect-value.patch
|
||||
Patch5: 0005-fix-misalignments-device-descripptor.patch
|
||||
|
||||
BuildRequires: libusbx-devel systemd-devel gcc autoconf automake libtool
|
||||
Requires: hwdata
|
||||
@ -48,6 +50,9 @@ install -D -m 644 %{SOURCE2} %{buildroot}%{_defaultlicensedir}/%{name}/GPL-3.0.t
|
||||
%{_mandir}/*/*
|
||||
|
||||
%changelog
|
||||
* Wed Sep 18 2024 Wangmian <wangmian19@h-partners.com> - 014-4
|
||||
- Fix incorrect value type and device descripptor misalignments
|
||||
|
||||
* Sun Jun 25 2023 zhanghongtao <zhanghongtao22@hiuawei.com> - 014-3
|
||||
- Fix 'lsusb -h' returns an error
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user