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malloc-fail: Fix use-after-free in xmlBufBackToBuffer

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This commit is contained in:
Nick Wellnhofer 2024-03-04 01:25:46 +01:00
parent edbf1eb63b
commit 9c2d451c02
1 changed files with 9 additions and 2 deletions
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11
buf.c
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@ -863,12 +863,19 @@ xmlBufBackToBuffer(xmlBufPtr buf) {
if (buf == NULL)
return(NULL);
CHECK_COMPAT(buf)
if ((buf->error) || (buf->buffer == NULL)) {
ret = buf->buffer;
if ((buf->error) || (ret == NULL)) {
xmlBufFree(buf);
if (ret != NULL) {
ret->content = NULL;
ret->contentIO = NULL;
ret->use = 0;
ret->size = 0;
}
return(NULL);
}
ret = buf->buffer;
/*
* What to do in case of error in the buffer ???
*/