lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 23 Sep 2020 14:27:52 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Marc Kleine-Budde <mkl@...gutronix.de>
Cc:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Thomas Kopp <thomas.kopp@...rochip.com>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, linux-can@...r.kernel.org,
        netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: [PATCH net-next] can: mcp25xxfd: fix a leak in mcp25xxfd_ring_free()

This loop doesn't free the first element of the array.  The "i > 0" has
to be changed to "i >= 0".

Fixes: 55e5b97f003e ("can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN")
Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>
---
 drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c b/drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c
index bd2ba981ae36..7e094afaac04 100644
--- a/drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c
+++ b/drivers/net/can/spi/mcp25xxfd/mcp25xxfd-core.c
@@ -377,7 +377,7 @@ static void mcp25xxfd_ring_free(struct mcp25xxfd_priv *priv)
 {
 	int i;
 
-	for (i = ARRAY_SIZE(priv->rx) - 1; i > 0; i--) {
+	for (i = ARRAY_SIZE(priv->rx) - 1; i >= 0; i--) {
 		kfree(priv->rx[i]);
 		priv->rx[i] = NULL;
 	}
-- 
2.28.0

Powered by blists - more mailing lists