system-config-printer/0001-udev-configure-printer-Add-checks-for-NULL.patch
2019-11-01 16:03:53 +01:00

72 lines
1.8 KiB
Diff

diff --git a/NEWS b/NEWS
index f4b774e..0b53aa8 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,6 @@
1.5.13 changes
--------------
+- add checks for NULL in udev-configure-printer (Fedora #1761097)
1.5.12 changes
--------------
diff --git a/udev/udev-configure-printer.c b/udev/udev-configure-printer.c
index 83092fc..8f6ce3d 100644
--- a/udev/udev-configure-printer.c
+++ b/udev/udev-configure-printer.c
@@ -1285,7 +1285,8 @@ normalize_device_uri(const char *str_orig)
{
int i, j;
int havespace = 0;
- char *str;
+ char *str = NULL;
+ char *cropped_str = NULL;
if (str_orig == NULL)
return NULL;
@@ -1333,7 +1334,11 @@ normalize_device_uri(const char *str_orig)
(strstr(str, "packard ") == str) ||
(strstr(str, "apollo ") == str) ||
(strstr(str, "usb ") == str))
- str = strchr(str, ' ') + 1;
+ {
+ cropped_str = strdup(strchr(str, ' ') + 1);
+ free(str);
+ str = cropped_str;
+ }
return str;
}
@@ -1411,7 +1416,7 @@ for_each_matching_queue (struct device_uris *device_uris,
const char *printer_state_message = NULL;
int state = 0;
size_t i, l;
- char *this_device_uri_n, *device_uri_n;
+ char *this_device_uri_n = NULL, *device_uri_n = NULL;
const char *ps1, *ps2, *pi1, *pi2;
while (attr && ippGetGroupTag (attr) != IPP_TAG_PRINTER)
@@ -1507,13 +1512,21 @@ for_each_matching_queue (struct device_uris *device_uris,
break;
}
}
+ if (device_uri_n != NULL)
+ {
+ free(device_uri_n);
+ device_uri_n = NULL;
+ }
}
firstqueue = 0;
skip:
- free(device_uri_n);
- free(this_device_uri_n);
+ if (this_device_uri_n != NULL)
+ {
+ free(this_device_uri_n);
+ this_device_uri_n = NULL;
+ }
if (!attr)
break;
}