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-rw-r--r--arch/um/drivers/vector_kern.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index 8fa094770965..45ec9bc2430f 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -121,7 +121,8 @@ static int get_mtu(struct arglist *def)
if (mtu != NULL) {
if (kstrtoul(mtu, 10, &result) == 0)
- return result;
+ if ((result < (1 << 16) - 1) && (result >= 576))
+ return result;
}
return ETH_MAX_PACKET;
}