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Diffstat (limited to 'net/ipv4/fib_rules.c')
-rw-r--r--net/ipv4/fib_rules.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 8325224ef072..9517b8667e00 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -249,6 +249,12 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
int err = -EINVAL;
struct fib4_rule *rule4 = (struct fib4_rule *) rule;
+ if (tb[FRA_FLOWLABEL] || tb[FRA_FLOWLABEL_MASK]) {
+ NL_SET_ERR_MSG(extack,
+ "Flow label cannot be specified for IPv4 FIB rules");
+ goto errout;
+ }
+
if (!inet_validate_dscp(frh->tos)) {
NL_SET_ERR_MSG(extack,
"Invalid dsfield (tos): ECN bits must be 0");