linux-kernel - [PATCH 3.16 30/99] brcmfmac: Fix memory leak in brcmf_usbdev

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Message-ID: <lsq.1589984008.28533969@decadent.org.uk>
Date:   Wed, 20 May 2020 15:13:58 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Kalle Valo" <kvalo@...eaurora.org>,
        "Navid Emamdoost" <navid.emamdoost@...il.com>
Subject: [PATCH 3.16 30/99] brcmfmac: Fix memory leak in brcmf_usbdev_qinit

3.16.84-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Navid Emamdoost <navid.emamdoost@...il.com>

commit 4282dc057d750c6a7dd92953564b15c26b54c22c upstream.

In the implementation of brcmf_usbdev_qinit() the allocated memory for
reqs is leaking if usb_alloc_urb() fails. Release reqs in the error
handling path.

Fixes: 71bb244ba2fd ("brcm80211: fmac: add USB support for bcm43235/6/8 chipsets")
Signed-off-by: Navid Emamdoost <navid.emamdoost@...il.com>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/net/wireless/brcm80211/brcmfmac/usb.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
@@ -365,6 +365,7 @@ fail:
 			usb_free_urb(req->urb);
 		list_del(q->next);
 	}
+	kfree(reqs);
 	return NULL;
 
 }