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core(persistence): add more checks for implementation limitations

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This commit is contained in:
Alexander Alekhin
2019-11-07 14:01:51 +03:00
parent 417034518c
commit f42d5399aa
2 changed files with 12 additions and 2 deletions
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modules/core/src/persistence_xml.cpp
+4 -2
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@@ -627,6 +627,8 @@ public:
c = '\"';
else
{
if (len + 2 + i >= CV_FS_MAX_LEN)
CV_PARSE_ERROR_CPP("string is too long");
memcpy( strbuf + i, ptr-1, len + 2 );
i += len + 2;
}
@@ -635,9 +637,9 @@ public:
CV_PERSISTENCE_CHECK_END_OF_BUFFER_BUG_CPP();
}
}
if (i + 1 >= CV_FS_MAX_LEN)
CV_PARSE_ERROR_CPP("Too long string literal");
strbuf[i++] = c;
if( i >= CV_FS_MAX_LEN )
CV_PARSE_ERROR_CPP( "Too long string literal" );
}
elem->setValue(FileNode::STRING, strbuf, i);
}