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-rw-r--r--net/core/ethtool.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index a0f4964033d2..a3a7e9a48dff 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -347,8 +347,9 @@ static noinline_for_stack int ethtool_get_rxnfc(struct net_device *dev,
if (info.cmd == ETHTOOL_GRXCLSRLALL) {
if (info.rule_cnt > 0) {
- rule_buf = kmalloc(info.rule_cnt * sizeof(u32),
- GFP_USER);
+ if (info.rule_cnt <= KMALLOC_MAX_SIZE / sizeof(u32))
+ rule_buf = kmalloc(info.rule_cnt * sizeof(u32),
+ GFP_USER);
if (!rule_buf)
return -ENOMEM;
}