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-rw-r--r--libxtables/xtables.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/libxtables/xtables.c b/libxtables/xtables.c
index 6dd0b152..34a084f4 100644
--- a/libxtables/xtables.c
+++ b/libxtables/xtables.c
@@ -920,6 +920,12 @@ void xtables_register_match(struct xtables_match *me)
exit(1);
}
+ if (me->real_name && strlen(me->real_name) >= XT_EXTENSION_MAXNAMELEN) {
+ fprintf(stderr, "%s: match `%s' has invalid real name\n",
+ xt_params->program_name, me->real_name);
+ exit(1);
+ }
+
if (me->family >= NPROTO) {
fprintf(stderr,
"%s: BUG: match %s has invalid protocol family\n",
@@ -1107,6 +1113,12 @@ void xtables_register_target(struct xtables_target *me)
exit(1);
}
+ if (me->real_name && strlen(me->real_name) >= XT_EXTENSION_MAXNAMELEN) {
+ fprintf(stderr, "%s: target `%s' has invalid real name\n",
+ xt_params->program_name, me->real_name);
+ exit(1);
+ }
+
if (me->family >= NPROTO) {
fprintf(stderr,
"%s: BUG: target %s has invalid protocol family\n",