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sys/net/rpl: fix possible NULL dereference

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fixes https://github.com/RIOT-OS/RIOT/issues/15006
This commit is contained in:
Marian Buschsieweke 2023-05-18 01:25:13 +02:00
parent 19ce68dd2e
commit 273f92a411
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1 changed files with 1 additions and 1 deletions
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sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c
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@ -1231,7 +1231,7 @@ void gnrc_rpl_recv_DAO_ACK(gnrc_rpl_dao_ack_t *dao_ack, kernel_pid_t iface, ipv6
#endif #endif
if (!IS_ACTIVE(CONFIG_GNRC_RPL_WITHOUT_VALIDATION)) { if (!IS_ACTIVE(CONFIG_GNRC_RPL_WITHOUT_VALIDATION)) {
if (!gnrc_rpl_validation_DAO_ACK(dao_ack, len, dst)) { if (!dst || !gnrc_rpl_validation_DAO_ACK(dao_ack, len, dst)) {
return; return;
} }
} }