Message ID | 20240624181809.18127-2-bethany.jamison@canonical.com |
---|---|
State | New |
Headers | show
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Series |
CVE-2024-36008
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expand
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diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 15c37c8113fc8..f67d3d6fe9345 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2166,6 +2166,9 @@ int ip_route_use_hint(struct sk_buff *skb, __be32 daddr, __be32 saddr, int err = -EINVAL; u32 tag = 0; + if (!in_dev) + return -EINVAL; + if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr)) goto martian_source;