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Fix null pointer arithmetic UB in libregexp (#136)

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This is a patch I originally wrote for the Kiesel JS engine:
https://codeberg.org/kiesel-js/kiesel/src/branch/main/patches/libregexp.patch
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Linus Groh 2023-11-29 13:43:02 +00:00 committed by GitHub
parent f181b3e54f
commit 3b034b84d9
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1 changed files with 2 additions and 1 deletions
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libregexp.c
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@ -1199,9 +1199,10 @@ static int find_group_name(REParseState *s, const char *name)
size_t len, name_len;
int capture_index;
name_len = strlen(name);
p = (char *)s->group_names.buf;
if (!p) return -1;
buf_end = (char *)s->group_names.buf + s->group_names.size;
name_len = strlen(name);
capture_index = 1;
while (p < buf_end) {
len = strlen(p);