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| author | Vadim Fedorenko <vfedorenko@novek.ru> | 2021-07-02 02:47:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-28 11:12:15 +0200 |
| commit | c386aaa64577f887a1154c39fecceb92d34ae903 (patch) | |
| tree | 21b44cb7c5f00d4f82ad71b7a7374b34eeb97241 /net | |
| parent | c1111029582e5a37509409b7ab5124c007f6b1f2 (diff) | |
| download | linux-stable-c386aaa64577f887a1154c39fecceb92d34ae903.tar.gz linux-stable-c386aaa64577f887a1154c39fecceb92d34ae903.tar.bz2 linux-stable-c386aaa64577f887a1154c39fecceb92d34ae903.zip | |
net: ipv6: fix return value of ip6_skb_dst_mtu
commit 40fc3054b45820c28ea3c65e2c86d041dc244a8a upstream.
Commit 628a5c561890 ("[INET]: Add IP(V6)_PMTUDISC_RPOBE") introduced
ip6_skb_dst_mtu with return value of signed int which is inconsistent
with actually returned values. Also 2 users of this function actually
assign its value to unsigned int variable and only __xfrm6_output
assigns result of this function to signed variable but actually uses
as unsigned in further comparisons and calls. Change this function
to return unsigned int value.
Fixes: 628a5c561890 ("[INET]: Add IP(V6)_PMTUDISC_RPOBE")
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/xfrm6_output.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/xfrm6_output.c b/net/ipv6/xfrm6_output.c index aff901be5353..276280d1e3da 100644 --- a/net/ipv6/xfrm6_output.c +++ b/net/ipv6/xfrm6_output.c @@ -146,7 +146,7 @@ static int __xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); struct xfrm_state *x = dst->xfrm; - int mtu; + unsigned int mtu; bool toobig; #ifdef CONFIG_NETFILTER |