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pcre: a rule with no ACL a match data of its own, not itself

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A rule whose ACL was missing was handed to the filters as the
connection's data, which they read as a match data block and freed:
a pointer into the configuration, dereferenced as another type and
given back to malloc. A rule without an ACL now skips the check and
goes on with a block of its own, and nothing a filter is given is
ever the rule itself.

(cherry picked from commit a7e5a8b48b)
This commit is contained in:
Vladimir Dubrovin 2026-11-08 14:39:32 +03:00
parent 01600e46d6
commit a00c0823f5
1 changed files with 7 additions and 6 deletions
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5
src/pcre.c
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@ -264,13 +264,14 @@ static FILTER_ACTION pcre_filter_client(void *fo, struct clientparam * param, vo
struct pcre_filter_data *rule = (struct pcre_filter_data *)fo;
struct pcre_client_data *pcd;
*fc = fo;
*fc = NULL;
if(!fo) return PASS;
if(!rule->acl) return CONTINUE;
if(rule->acl){
memset (&tmpace, 0, sizeof(struct ace));
tmpace.src = rule->acl->src;
res = pl->ACLMatches(&tmpace, param);
if(!res) return PASS;
}
/* the connection goes on with a match data of its own */
if(!(pcd = pl->mallocfunc(sizeof(struct pcre_client_data)))){
*fc = NULL;