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net: netlink: Update attr validation to require exact length for some types
authorDavid Ahern <dsahern@gmail.com>
Wed, 8 Nov 2017 05:59:40 +0000 (21:59 -0800)
committerDavid S. Miller <davem@davemloft.net>
Sat, 11 Nov 2017 06:14:38 +0000 (15:14 +0900)
commit0eb48551b84046d85733bed0cdc046857f04b53b
tree28b50e6aced09e14ff02b907745ec511d2ee8790tree | snapshot
parentd8f3f0ab1fc85813a1643ee575021bc9d0ab1714commit | diff
net: netlink: Update attr validation to require exact length for some types

Attributes using NLA_U* and NLA_S* (where * is 8, 16,32 and 64) are
expected to be an exact length. Split these data types from
nla_attr_minlen into nla_attr_len and update validate_nla to require
the attribute to have exact length for them.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
lib/nlattr.c diff | blob | history
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