gnrc_sixlowpan: Various hardening fixes [backport 2022.10]#18820

Merged

maribu merged 10 commits intoRIOT-OS:2022.10-branchfrom miri64:backport/2022.10/gnrc_sixlowpan/fix/harden

Oct 29, 2022

+111-63

Commits on Oct 29, 2022

gnrc_sixlowpan_iphc: fix buffer overflow in gnrc_sixlowpan_iphc_recv()
miri64
committed
gnrc_sixlowpan_iphc: fix integer underflow in gnrc_sixlowpan_iphc_recv()
miri64
committed
gnrc_sixlowpan_frag_rb: fix integer underflow in _6lo_frag_size()
miri64
committed
gnrc_sixlowpan_iphc: fix null pointer dereference in _iphc_encode()

Diff-fusion
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miri64
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gnrc_sixlowpan_iphc: fix packet type confusion in _iphc_encode()
miri64
committed
ieee802154: Adjust parsing of IEEE 802.15.4 frame header

Diff-fusion
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miri64
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gnrc_netif_ieee802154: Ignore packets without source address

Diff-fusion
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miri64
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gnrc_sixlowpan_frag_vrb: Assert no usage of a vrb with src_len == 0

Diff-fusion
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miri64
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gnrc_sixlowpan_iphc.c: dereference ipv6_hdr in DEBUG() after assignment
miri64
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tests/unittests: fix get_frame_hdr_len tests for hardened parsing
miri64
committed