linux-kernel - [PATCH 4.9 59/67] staging: lustre: ptlrpc: kfree used instead of kvfree

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Message-Id: <20180327162730.846541999@linuxfoundation.org>
Date:   Tue, 27 Mar 2018 18:27:51 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Peng Tao <bergwolf@...il.com>,
        Oleg Drokin <oleg.drokin@...el.com>,
        James Simmons <jsimmons@...radead.org>,
        Nadav Amit <namit@...are.com>,
        Andreas Dilger <andreas.dilger@...el.com>
Subject: [PATCH 4.9 59/67] staging: lustre: ptlrpc: kfree used instead of kvfree

4.9-stable review patch.  If anyone has any objections, please let me know.

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

From: Nadav Amit <namit@...are.com>

commit c3eec59659cf25916647d2178c541302bb4822ad upstream.

rq_reqbuf is allocated using kvmalloc() but released in one occasion
using kfree() instead of kvfree().

The issue was found using grep based on a similar bug.

Fixes: d7e09d0397e8 ("add Lustre file system client support")
Fixes: ee0ec1946ec2 ("lustre: ptlrpc: Replace uses of OBD_{ALLOC,FREE}_LARGE")

Cc: Peng Tao <bergwolf@...il.com>
Cc: Oleg Drokin <oleg.drokin@...el.com>
Cc: James Simmons <jsimmons@...radead.org>

Signed-off-by: Nadav Amit <namit@...are.com>
Signed-off-by: Andreas Dilger <andreas.dilger@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/lustre/lustre/ptlrpc/sec.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/lustre/lustre/ptlrpc/sec.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c
@@ -838,7 +838,7 @@ void sptlrpc_request_out_callback(struct
 	if (req->rq_pool || !req->rq_reqbuf)
 		return;
 
-	kfree(req->rq_reqbuf);
+	kvfree(req->rq_reqbuf);
 	req->rq_reqbuf = NULL;
 	req->rq_reqbuf_len = 0;
 }