David S. Miller 7dd7eb9513 ipv6: Check ip6_find_1stfragopt() return value properly. ...

Do not use unsigned variables to see if it returns a negative
error or not.

Fixes: 2423496af3 ("ipv6: Prevent overrun when parsing v6 header options")
Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

2017-05-17 22:54:11 -04:00

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