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FIXED: Fix potential bug in Aho-Corasick search:

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Fletcher T. Penney 2017-03-14 23:50:26 -04:00
parent 0ea87af748
commit 11f1f0e137
1 changed files with 3 additions and 1 deletions
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4
Sources/libMultiMarkdown/aho-corasick.c
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@ -331,6 +331,7 @@ match * match_new(size_t start, size_t len, unsigned short match_type) {
m->len = len;
m->match_type = match_type;
m->next = NULL;
m->prev = NULL;
}
return m;
@ -483,7 +484,8 @@ void match_set_filter_leftmost_longest(match * header) {
}
}
while (m->prev->len &&
while (m->prev &&
m->prev->len &&
m->prev->start >= m->start) {
// We are "lefter" than previous
n = m->prev;