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net: fib_rules: Correctly set table field when table number exceeds 8 bits 

[ Upstream commit 540e585a79e9d643ede077b73bcc7aa2d7b4d919 ]

In 709772e6e0, RT_TABLE_COMPAT was added to
allow legacy software to deal with routing table numbers >= 256, but the
same change to FIB rule queries was overlooked.

Signed-off-by: Jethro Beekman <jethro@fortanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jethro Beekman 2020-02-12 16:43:41 +01:00 committed by Greg Kroah-Hartman
parent 59b5714c67
commit 9310357f61
1 changed files with 1 additions and 1 deletions
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2
net/core/fib_rules.c
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@ -967,7 +967,7 @@ static int fib_nl_fill_rule(struct sk_buff *skb, struct fib_rule *rule,
frh = nlmsg_data(nlh);
frh->family = ops->family;
frh->table = rule->table;
frh->table = rule->table < 256 ? rule->table : RT_TABLE_COMPAT;
if (nla_put_u32(skb, FRA_TABLE, rule->table))
goto nla_put_failure;
if (nla_put_u32(skb, FRA_SUPPRESS_PREFIXLEN, rule->suppress_prefixlen))