Patch "crypto: cavium - fix memory leak on info" has been added to the 4.15-stable tree

Patch "crypto: cavium - fix memory leak on info" has been added to the 4.15-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    crypto: cavium - fix memory leak on info

to the 4.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     crypto-cavium-fix-memory-leak-on-info.patch
and it can be found in the queue-4.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Fri Mar 16 15:11:07 CET 2018
From: Colin Ian King <colin.king@canonical.com>
Date: Wed, 15 Nov 2017 12:37:19 +0000
Subject: crypto: cavium - fix memory leak on info

From: Colin Ian King <colin.king@canonical.com>


[ Upstream commit 87aae50af730a28dc1d8846d86dca5e9aa724a9f ]

The object info is being leaked on an error return path, fix this
by setting ret to -ENOMEM and exiting via the request_cleanup path
that will free info.

Detected by CoverityScan, CID#1408439 ("Resource Leak")

Fixes: c694b233295b ("crypto: cavium - Add the Virtual Function driver for CPT")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/crypto/cavium/cpt/cptvf_reqmanager.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/crypto/cavium/cpt/cptvf_reqmanager.c
+++ b/drivers/crypto/cavium/cpt/cptvf_reqmanager.c
@@ -459,7 +459,8 @@ int process_request(struct cpt_vf *cptvf
 	info->completion_addr = kzalloc(sizeof(union cpt_res_s), GFP_KERNEL);
 	if (unlikely(!info->completion_addr)) {
 		dev_err(&pdev->dev, "Unable to allocate memory for completion_addr\n");
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto request_cleanup;
 	}
 
 	result = (union cpt_res_s *)info->completion_addr;


Patches currently in stable-queue which might be from colin.king@canonical.com are

queue-4.15/usbip-vudc-fix-null-pointer-dereference-on-udc-lock.patch
queue-4.15/crypto-cavium-fix-memory-leak-on-info.patch
queue-4.15/staging-rtl8822be-fix-missing-null-check-on-dev_alloc_skb-return.patch