diff options
Diffstat (limited to 'target/linux/generic/pending-4.9/612-netfilter_match_reduce_memory_access.patch')
| -rw-r--r-- | target/linux/generic/pending-4.9/612-netfilter_match_reduce_memory_access.patch | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.9/612-netfilter_match_reduce_memory_access.patch b/target/linux/generic/pending-4.9/612-netfilter_match_reduce_memory_access.patch new file mode 100644 index 0000000..20e0e86 --- /dev/null +++ b/target/linux/generic/pending-4.9/612-netfilter_match_reduce_memory_access.patch @@ -0,0 +1,27 @@ +From: Felix Fietkau <nbd@nbd.name> +Subject: netfilter: reduce match memory access + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + net/ipv4/netfilter/ip_tables.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c +index 9178930fca17..35d1db7b78f1 100644 +--- a/net/ipv4/netfilter/ip_tables.c ++++ b/net/ipv4/netfilter/ip_tables.c +@@ -61,9 +61,9 @@ ip_packet_match(const struct iphdr *ip, + if (ipinfo->flags & IPT_F_NO_DEF_MATCH) + return true; + +- if (NF_INVF(ipinfo, IPT_INV_SRCIP, ++ if (NF_INVF(ipinfo, IPT_INV_SRCIP, ipinfo->smsk.s_addr && + (ip->saddr & ipinfo->smsk.s_addr) != ipinfo->src.s_addr) || +- NF_INVF(ipinfo, IPT_INV_DSTIP, ++ NF_INVF(ipinfo, IPT_INV_DSTIP, ipinfo->dmsk.s_addr && + (ip->daddr & ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr)) + return false; + +-- +2.11.0 + |