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Merge pull request #14812 from miri64/gnrc_sixlowpan_frag_rb/fix/icnlowpan-sfr-fixes

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gnrc_sixlowpan_frag_rb: Check possibly uninitialized pointers
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Martine Lenders 2020-08-21 12:33:49 +02:00 committed by GitHub
commit 0b6394c55d
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1 changed files with 7 additions and 3 deletions
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10
sys/net/gnrc/network_layer/sixlowpan/frag/rb/gnrc_sixlowpan_frag_rb.c
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@ -150,7 +150,9 @@ void gnrc_sixlowpan_frag_rb_rm_by_datagram(const gnrc_netif_hdr_t *netif_hdr,
gnrc_sixlowpan_frag_rb_t *e = _rbuf_get_by_tag(netif_hdr, tag);
if (e != NULL) {
gnrc_pktbuf_release(e->pkt);
if (e->pkt != NULL) {
gnrc_pktbuf_release(e->pkt);
}
gnrc_sixlowpan_frag_rb_remove(e);
}
}
@ -504,8 +506,10 @@ static int _rbuf_get(const void *src, size_t src_len,
return -1;
}
*((uint64_t *)res->pkt->data) = 0; /* clean first few bytes for later
* look-ups */
if (res->pkt->data) {
/* clean first few bytes for later look-ups */
memset(res->pkt->data, 0, sizeof(uint64_t));
}
res->super.datagram_size = size;
res->super.arrival = now_usec;
memcpy(res->super.src, src, src_len);