Heinrich Schuchardt 56e3b14703 net: don't memcpy to NULL ...

In ndisc_receive() 7 bytes are copied from a buffer of size 6 to NULL.

net_nd_packet_mac is a pointer. If it is NULL, we should set it to the
address of the buffer with the MAC address.

Addresses-Coverity-ID: 430974 ("Out-of-bounds access")
Fixes: c6610e1d90 ("net: ipv6: Add Neighbor Discovery Protocol (NDP)")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Viacheslav Mitrofanov <v.v.mitrofanov@yadro.com>

2022-12-22 15:39:13 -05:00

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