riot-ci/RIOT
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Merge pull request #11182 from miri64/gnrc_ipv6_nib/fix/pkt-null-on-error

Browse Source 
gnrc_ipv6_nib: check if pkt is NULL on error
This commit is contained in:
Martine Lenders 2019-03-27 18:38:32 +01:00 committed by GitHub
commit aa8e760e46
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sys/net/gnrc/network_layer/ipv6/nib/nib.c
View File

@ -203,7 +203,7 @@ int gnrc_ipv6_nib_get_next_hop_l2addr(const ipv6_addr_t *dst,
/* _resolve_addr releases pkt only if not queued (in which case
* we also shouldn't release), but if netif is not defined we
* should release in any case. */
if (netif == NULL) {
if ((netif == NULL) && (pkt != NULL)) {
gnrc_icmpv6_error_dst_unr_send(ICMPV6_ERROR_DST_UNR_ADDR,
pkt);
gnrc_pktbuf_release_error(pkt, EHOSTUNREACH);
@ -228,10 +228,14 @@ int gnrc_ipv6_nib_get_next_hop_l2addr(const ipv6_addr_t *dst,
memcpy(&route.next_hop, dst, sizeof(route.next_hop));
}
else {
gnrc_icmpv6_error_dst_unr_send(ICMPV6_ERROR_DST_UNR_NO_ROUTE,
pkt);
res = -ENETUNREACH;
if (pkt != NULL) {
gnrc_icmpv6_error_dst_unr_send(
ICMPV6_ERROR_DST_UNR_NO_ROUTE,
pkt
);
gnrc_pktbuf_release_error(pkt, ENETUNREACH);
}
break;
}
}
@ -1201,6 +1205,7 @@ static bool _resolve_addr(const ipv6_addr_t *dst, gnrc_netif_t *netif,
return false;
}
}
/* pkt != NULL already checked above */
else {
gnrc_icmpv6_error_dst_unr_send(ICMPV6_ERROR_DST_UNR_ADDR,
pkt);