mirror of
https://gitlab.gnome.org/GNOME/libxml2.git
synced 2024-12-23 17:33:50 +03:00
da996c8d0f
Fix many places where malloc failures weren't reported, for example after calling xmlStrdup. Introduce new public API functions that return a separate error code if a memory allocation fails: - xmlParseURISafe - xmlBuildURISafe - xmlBuildRelativeURISafe Update the fuzzer to check whether malloc failures are reported.
105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/*
|
|
* uri.c: a libFuzzer target to test the URI module.
|
|
*
|
|
* See Copyright for the status of this software.
|
|
*/
|
|
|
|
#include <libxml/uri.h>
|
|
#include "fuzz.h"
|
|
|
|
int
|
|
LLVMFuzzerInitialize(int *argc ATTRIBUTE_UNUSED,
|
|
char ***argv ATTRIBUTE_UNUSED) {
|
|
xmlFuzzMemSetup();
|
|
xmlSetGenericErrorFunc(NULL, xmlFuzzErrorFunc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
LLVMFuzzerTestOneInput(const char *data, size_t size) {
|
|
xmlURIPtr uri;
|
|
size_t maxAlloc;
|
|
const char *str1, *str2;
|
|
char *copy;
|
|
xmlChar *strRes;
|
|
int intRes;
|
|
|
|
if (size > 10000)
|
|
return(0);
|
|
|
|
xmlFuzzDataInit(data, size);
|
|
maxAlloc = xmlFuzzReadInt(4) % (size * 8 + 100);
|
|
str1 = xmlFuzzReadString(NULL);
|
|
str2 = xmlFuzzReadString(NULL);
|
|
|
|
xmlFuzzMemSetLimit(maxAlloc);
|
|
|
|
xmlFuzzResetMallocFailed();
|
|
intRes = xmlParseURISafe(str1, &uri);
|
|
xmlFuzzCheckMallocFailure("xmlParseURISafe", intRes == -1);
|
|
|
|
if (uri != NULL) {
|
|
xmlFuzzResetMallocFailed();
|
|
strRes = xmlSaveUri(uri);
|
|
xmlFuzzCheckMallocFailure("xmlSaveURI", strRes == NULL);
|
|
xmlFree(strRes);
|
|
xmlFreeURI(uri);
|
|
}
|
|
|
|
xmlFreeURI(xmlParseURI(str1));
|
|
|
|
uri = xmlParseURIRaw(str1, 1);
|
|
xmlFree(xmlSaveUri(uri));
|
|
xmlFreeURI(uri);
|
|
|
|
xmlFuzzResetMallocFailed();
|
|
strRes = BAD_CAST xmlURIUnescapeString(str1, -1, NULL);
|
|
xmlFuzzCheckMallocFailure("xmlURIUnescapeString",
|
|
str1 != NULL && strRes == NULL);
|
|
xmlFree(strRes);
|
|
|
|
xmlFree(xmlURIEscape(BAD_CAST str1));
|
|
|
|
xmlFuzzResetMallocFailed();
|
|
strRes = xmlCanonicPath(BAD_CAST str1);
|
|
xmlFuzzCheckMallocFailure("xmlCanonicPath",
|
|
str1 != NULL && strRes == NULL);
|
|
xmlFree(strRes);
|
|
|
|
xmlFuzzResetMallocFailed();
|
|
strRes = xmlPathToURI(BAD_CAST str1);
|
|
xmlFuzzCheckMallocFailure("xmlPathToURI", str1 != NULL && strRes == NULL);
|
|
xmlFree(strRes);
|
|
|
|
xmlFuzzResetMallocFailed();
|
|
intRes = xmlBuildURISafe(BAD_CAST str2, BAD_CAST str1, &strRes);
|
|
xmlFuzzCheckMallocFailure("xmlBuildURISafe", intRes == -1);
|
|
xmlFree(strRes);
|
|
|
|
xmlFree(xmlBuildURI(BAD_CAST str2, BAD_CAST str1));
|
|
|
|
xmlFuzzResetMallocFailed();
|
|
intRes = xmlBuildRelativeURISafe(BAD_CAST str2, BAD_CAST str1, &strRes);
|
|
xmlFuzzCheckMallocFailure("xmlBuildRelativeURISafe", intRes == -1);
|
|
xmlFree(strRes);
|
|
|
|
xmlFree(xmlBuildRelativeURI(BAD_CAST str2, BAD_CAST str1));
|
|
|
|
xmlFuzzResetMallocFailed();
|
|
strRes = xmlURIEscapeStr(BAD_CAST str1, BAD_CAST str2);
|
|
xmlFuzzCheckMallocFailure("xmlURIEscapeStr",
|
|
str1 != NULL && strRes == NULL);
|
|
xmlFree(strRes);
|
|
|
|
copy = (char *) xmlCharStrdup(str1);
|
|
xmlNormalizeURIPath(copy);
|
|
xmlFree(copy);
|
|
|
|
xmlFuzzMemSetLimit(0);
|
|
xmlFuzzDataCleanup();
|
|
|
|
return 0;
|
|
}
|
|
|