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Merge pull request #7530 from ton31337/fix/safeguard_path->attr

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bgpd: Make sure path->attr is not NULL before dereferencing
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Mark Stapp 2020-11-17 07:09:54 -05:00 committed by GitHub
commit 92395aa0b7
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1 changed files with 4 additions and 2 deletions
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bgpd/bgp_flowspec_vty.c
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@ -268,7 +268,7 @@ void route_vty_out_flowspec(struct vty *vty, const struct prefix *p,
json_object *json_ecom_path = NULL; json_object *json_ecom_path = NULL;
json_object *json_time_path = NULL; json_object *json_time_path = NULL;
char timebuf[BGP_UPTIME_LEN]; char timebuf[BGP_UPTIME_LEN];
struct ecommunity *ipv6_ecomm; struct ecommunity *ipv6_ecomm = NULL;
if (p == NULL || p->family != AF_FLOWSPEC) if (p == NULL || p->family != AF_FLOWSPEC)
return; return;
@ -300,7 +300,9 @@ void route_vty_out_flowspec(struct vty *vty, const struct prefix *p,
if (!path) if (!path)
return; return;
ipv6_ecomm = bgp_attr_get_ipv6_ecommunity(path->attr); if (path->attr)
ipv6_ecomm = bgp_attr_get_ipv6_ecommunity(path->attr);
if (path->attr && (path->attr->ecommunity || ipv6_ecomm)) { if (path->attr && (path->attr->ecommunity || ipv6_ecomm)) {
/* Print attribute */ /* Print attribute */
attr = path->attr; attr = path->attr;