ae 47e558ffe5 Explicitly initialize the memory buffer to store O_ICMP6TYPE opcode.
By default next_cmd() initializes only first u32 of opcode. O_ICMP6TYPE
opcode has array of bit masks to store corresponding ICMPv6 types.
An opcode that precedes O_ICMP6TYPE, e.g. O_IP6_DST, can have variable
length and during opcode filling it can modify memory that will be used
by O_ICMP6TYPE opcode. Without explicit initialization this leads to
creation of wrong opcode.

Reported by:	Boris N. Lytochkin
Obtained from:	Yandex LLC
MFC after:	3 days
2019-10-15 09:50:02 +00:00
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