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-rw-r--r--net/ethtool/bitset.c3
-rw-r--r--net/ethtool/bitset.h2
2 files changed, 4 insertions, 1 deletions
diff --git a/net/ethtool/bitset.c b/net/ethtool/bitset.c
index 8977fe1f3946..ef9197541cb3 100644
--- a/net/ethtool/bitset.c
+++ b/net/ethtool/bitset.c
@@ -305,7 +305,8 @@ nla_put_failure:
static const struct nla_policy bitset_policy[ETHTOOL_A_BITSET_MAX + 1] = {
[ETHTOOL_A_BITSET_UNSPEC] = { .type = NLA_REJECT },
[ETHTOOL_A_BITSET_NOMASK] = { .type = NLA_FLAG },
- [ETHTOOL_A_BITSET_SIZE] = { .type = NLA_U32 },
+ [ETHTOOL_A_BITSET_SIZE] = NLA_POLICY_MAX(NLA_U32,
+ ETHNL_MAX_BITSET_SIZE),
[ETHTOOL_A_BITSET_BITS] = { .type = NLA_NESTED },
[ETHTOOL_A_BITSET_VALUE] = { .type = NLA_BINARY },
[ETHTOOL_A_BITSET_MASK] = { .type = NLA_BINARY },
diff --git a/net/ethtool/bitset.h b/net/ethtool/bitset.h
index b8247e34109d..b849f9d19676 100644
--- a/net/ethtool/bitset.h
+++ b/net/ethtool/bitset.h
@@ -3,6 +3,8 @@
#ifndef _NET_ETHTOOL_BITSET_H
#define _NET_ETHTOOL_BITSET_H
+#define ETHNL_MAX_BITSET_SIZE S16_MAX
+
typedef const char (*const ethnl_string_array_t)[ETH_GSTRING_LEN];
int ethnl_bitset_is_compact(const struct nlattr *bitset, bool *compact);