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Fix memory leak in xmlSchemaValidateStream

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When ctxt->schema is NULL, xmlSchemaSAXPlug->xmlSchemaPreRun
alloc a new schema for ctxt->schema and set vctxt->xsiAssemble
to 1. Then xmlSchemaVStart->xmlSchemaPreRun initialize
vctxt->xsiAssemble to 0 again which cause the alloced schema
can not be freed anymore.

Found with libFuzzer.

Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
This commit is contained in:
Zhipeng Xie 2019-08-20 16:33:06 +08:00 committed by Nick Wellnhofer
parent e45e06de90
commit 7ffcd44d7e
1 changed files with 0 additions and 1 deletions
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xmlschemas.c
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@ -28090,7 +28090,6 @@ xmlSchemaPreRun(xmlSchemaValidCtxtPtr vctxt) {
vctxt->nberrors = 0;
vctxt->depth = -1;
vctxt->skipDepth = -1;
vctxt->xsiAssemble = 0;
vctxt->hasKeyrefs = 0;
#ifdef ENABLE_IDC_NODE_TABLES_TEST
vctxt->createIDCNodeTables = 1;