linux-kernel - [PATCH] can: ems_usb: Fix memory leak on ems_usb

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 linux-cve-announce 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:   Fri, 27 Jul 2018 18:50:42 +0300
From:   Anton Vasilyev <vasilyev@...ras.ru>
To:     Wolfgang Grandegger <wg@...ndegger.com>
Cc:     Anton Vasilyev <vasilyev@...ras.ru>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Martin Kelly <mkelly@...o.com>,
        Martin Lederhilger <m.lederhilger@...automotion.com>,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, ldv-project@...uxtesting.org
Subject: [PATCH] can: ems_usb: Fix memory leak on ems_usb_disconnect

ems_usb_probe() allocates memory for dev->tx_msg_buffer, but there
is no its deallocation in ems_usb_disconnect.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Anton Vasilyev <vasilyev@...ras.ru>
---
 drivers/net/can/usb/ems_usb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c
index 12ff0020ecd6..b7dfd4109d24 100644
--- a/drivers/net/can/usb/ems_usb.c
+++ b/drivers/net/can/usb/ems_usb.c
@@ -1072,6 +1072,7 @@ static void ems_usb_disconnect(struct usb_interface *intf)
 		usb_free_urb(dev->intr_urb);
 
 		kfree(dev->intr_in_buffer);
+		kfree(dev->tx_msg_buffer);
 	}
 }
 
-- 
2.18.0