From: "Gustavo A. R. Silva" gustavoars@kernel.org

Use 2-factor argument form kvcalloc() instead of kvzalloc().

Link: https://github.com/KSPP/linux/issues/162 Cc: stable@vger.kernel.org Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Signed-off-by: Gustavo A. R. Silva gustavoars@kernel.org [Jason: Gustavo's link above is for KSPP, but this isn't actually a security fix, as table_size is bounded to 8192 anyway, and gcc realizes this, so the codegen comes out to be about the same.] Signed-off-by: Jason A. Donenfeld Jason@zx2c4.com --- drivers/net/wireguard/ratelimiter.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireguard/ratelimiter.c b/drivers/net/wireguard/ratelimiter.c index 3fedd1d21f5e..dd55e5c26f46 100644 --- a/drivers/net/wireguard/ratelimiter.c +++ b/drivers/net/wireguard/ratelimiter.c @@ -176,12 +176,12 @@ int wg_ratelimiter_init(void) (1U << 14) / sizeof(struct hlist_head))); max_entries = table_size * 8;

- table_v4 = kvzalloc(table_size * sizeof(*table_v4), GFP_KERNEL); + table_v4 = kvcalloc(table_size, sizeof(*table_v4), GFP_KERNEL); if (unlikely(!table_v4)) goto err_kmemcache;

#if IS_ENABLED(CONFIG_IPV6) - table_v6 = kvzalloc(table_size * sizeof(*table_v6), GFP_KERNEL); + table_v6 = kvcalloc(table_size, sizeof(*table_v6), GFP_KERNEL); if (unlikely(!table_v6)) { kvfree(table_v4); goto err_kmemcache;