From 7e6a10e4a57aaf72c74c21d2ed7d2be8289d0f6f Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Thu, 25 Jan 2024 17:34:40 +0100 Subject: obj: ct_timeout: setter checks for timeout array boundaries Use _MAX definitions for timeout attribute arrays and check that timeout array is not larger than NFTNL_CTTIMEOUT_ARRAY_MAX. Fixes: 0adceeab1597 ("src: add ct timeout support") Signed-off-by: Pablo Neira Ayuso --- src/obj/ct_timeout.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'src') diff --git a/src/obj/ct_timeout.c b/src/obj/ct_timeout.c index 65b48bd..fedf9e3 100644 --- a/src/obj/ct_timeout.c +++ b/src/obj/ct_timeout.c @@ -21,7 +21,7 @@ #include "obj.h" -static const char *const tcp_state_to_name[] = { +static const char *const tcp_state_to_name[NFTNL_CTTIMEOUT_TCP_MAX] = { [NFTNL_CTTIMEOUT_TCP_SYN_SENT] = "SYN_SENT", [NFTNL_CTTIMEOUT_TCP_SYN_RECV] = "SYN_RECV", [NFTNL_CTTIMEOUT_TCP_ESTABLISHED] = "ESTABLISHED", @@ -35,7 +35,7 @@ static const char *const tcp_state_to_name[] = { [NFTNL_CTTIMEOUT_TCP_UNACK] = "UNACKNOWLEDGED", }; -static uint32_t tcp_dflt_timeout[] = { +static uint32_t tcp_dflt_timeout[NFTNL_CTTIMEOUT_TCP_MAX] = { [NFTNL_CTTIMEOUT_TCP_SYN_SENT] = 120, [NFTNL_CTTIMEOUT_TCP_SYN_RECV] = 60, [NFTNL_CTTIMEOUT_TCP_ESTABLISHED] = 432000, @@ -49,12 +49,12 @@ static uint32_t tcp_dflt_timeout[] = { [NFTNL_CTTIMEOUT_TCP_UNACK] = 300, }; -static const char *const udp_state_to_name[] = { +static const char *const udp_state_to_name[NFTNL_CTTIMEOUT_UDP_MAX] = { [NFTNL_CTTIMEOUT_UDP_UNREPLIED] = "UNREPLIED", [NFTNL_CTTIMEOUT_UDP_REPLIED] = "REPLIED", }; -static uint32_t udp_dflt_timeout[] = { +static uint32_t udp_dflt_timeout[NFTNL_CTTIMEOUT_UDP_MAX] = { [NFTNL_CTTIMEOUT_UDP_UNREPLIED] = 30, [NFTNL_CTTIMEOUT_UDP_REPLIED] = 180, }; @@ -156,6 +156,9 @@ static int nftnl_obj_ct_timeout_set(struct nftnl_obj *e, uint16_t type, memcpy(&timeout->l4proto, data, sizeof(timeout->l4proto)); break; case NFTNL_OBJ_CT_TIMEOUT_ARRAY: + if (data_len < sizeof(uint32_t) * NFTNL_CTTIMEOUT_ARRAY_MAX) + return -1; + memcpy(timeout->timeout, data, sizeof(uint32_t) * NFTNL_CTTIMEOUT_ARRAY_MAX); break; -- cgit v1.2.3