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-rw-r--r--pkg/tcpip/header/BUILD3
-rw-r--r--pkg/tcpip/header/ipv4.go2
2 files changed, 2 insertions, 3 deletions
diff --git a/pkg/tcpip/header/BUILD b/pkg/tcpip/header/BUILD
index b558350c3..a255231a3 100644
--- a/pkg/tcpip/header/BUILD
+++ b/pkg/tcpip/header/BUILD
@@ -1,9 +1,8 @@
load("@io_bazel_rules_go//go:def.bzl", "go_test")
+load("//tools/go_stateify:defs.bzl", "go_library")
package(licenses = ["notice"])
-load("//tools/go_stateify:defs.bzl", "go_library")
-
go_library(
name = "header",
srcs = [
diff --git a/pkg/tcpip/header/ipv4.go b/pkg/tcpip/header/ipv4.go
index 554632a64..e5360e7c1 100644
--- a/pkg/tcpip/header/ipv4.go
+++ b/pkg/tcpip/header/ipv4.go
@@ -284,7 +284,7 @@ func (b IPv4) IsValid(pktSize int) bool {
hlen := int(b.HeaderLength())
tlen := int(b.TotalLength())
- if hlen > tlen || tlen > pktSize {
+ if hlen < IPv4MinimumSize || hlen > tlen || tlen > pktSize {
return false
}