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gnrc_sixlowpan_iphc: zero IPv6 header before decompressing into it

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This commit is contained in:
Martine S. Lenders 2020-03-25 14:54:18 +01:00
parent c4a8c63002
commit ac222521ab
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1 changed files with 3 additions and 0 deletions
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3
sys/net/gnrc/network_layer/sixlowpan/iphc/gnrc_sixlowpan_iphc.c
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@ -158,6 +158,9 @@ static size_t _iphc_ipv6_decode(const uint8_t *iphc_hdr,
payload_offset++;
}
/* bits of the uncompressed address might not be written in decompression,
* so zero the whole header first */
memset(ipv6_hdr, 0, sizeof(*ipv6_hdr));
ipv6_hdr_set_version(ipv6_hdr);
switch (iphc_hdr[IPHC1_IDX] & SIXLOWPAN_IPHC1_TF) {