linux-kernel - [PATCH] usb: gadget: function: printer: Fix usb function descriptors leak

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]

Message-Id: <20201014075523.15688-1-qiang.zhang@windriver.com>
Date:   Wed, 14 Oct 2020 15:55:23 +0800
From:   Zqiang <qiang.zhang@...driver.com>
To:     balbi@...nel.org, gregkh@...uxfoundation.org
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] usb: gadget: function: printer: Fix usb function descriptors leak

If an error occurs after call 'usb_assign_descriptors' func, the
'usb_free_all_descriptors' need to be call to release memory space
occupied by function descriptors.

Signed-off-by: Zqiang <qiang.zhang@...driver.com>
---
 drivers/usb/gadget/function/f_printer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c
index 64a4112068fc..2f1eb2e81d30 100644
--- a/drivers/usb/gadget/function/f_printer.c
+++ b/drivers/usb/gadget/function/f_printer.c
@@ -1162,6 +1162,7 @@ static int printer_func_bind(struct usb_configuration *c,
 		printer_req_free(dev->in_ep, req);
 	}
 
+	usb_free_all_descriptors(f);
 	return ret;
 
 }
-- 
2.17.1