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D53281.1777294613.diff
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diff --git a/sys/netpfil/ipfilter/netinet/ip_state.c b/sys/netpfil/ipfilter/netinet/ip_state.c
--- a/sys/netpfil/ipfilter/netinet/ip_state.c
+++ b/sys/netpfil/ipfilter/netinet/ip_state.c
@@ -938,10 +938,12 @@
* Look up all the interface names in the rule.
*/
for (i = 0; i < FR_NUM(fr->fr_ifnames); i++) {
- if (fr->fr_ifnames[i] == -1) {
+ if (fr->fr_ifnames[i] < 0) {
fr->fr_ifas[i] = NULL;
continue;
}
+ if (strnlen(fr->fr_ifnames[i], MAX_IFNAME_LENGTH) > fr->fr_namelen && fr->fr_namelen >= MAX_IFNAME_LENGTH)
+ continue;
name = FR_NAME(fr, fr_ifnames[i]);
fr->fr_ifas[i] = ipf_resolvenic(softc, name,
fr->fr_family);

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