[3.19.y-ckt stable] Patch "SUNRPC: Fix a memory leak in the backchannel code" has been added to staging queue
Kamal Mostafa
kamal at canonical.com
Thu Jul 16 01:00:22 UTC 2015
This is a note to let you know that I have just added a patch titled
SUNRPC: Fix a memory leak in the backchannel code
to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree
which can be found at:
http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue
This patch is scheduled to be released in version 3.19.y-ckt4.
If you, or anyone else, feels it should not be added to this tree, please
reply to this email.
For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable
Thanks.
-Kamal
------
>From eb55c5110cdeb889bb4d9d05e2fe504e3e90f9dd Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust at primarydata.com>
Date: Mon, 1 Jun 2015 15:10:25 -0400
Subject: SUNRPC: Fix a memory leak in the backchannel code
commit 88de6af24f2b48b06c514d3c3d0a8f22fafe30bd upstream.
req->rq_private_buf isn't initialised when xprt_setup_backchannel calls
xprt_free_allocation.
Fixes: fb7a0b9addbdb ("nfs41: New backchannel helper routines")
Signed-off-by: Trond Myklebust <trond.myklebust at primarydata.com>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
net/sunrpc/backchannel_rqst.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sunrpc/backchannel_rqst.c b/net/sunrpc/backchannel_rqst.c
index 9dd0ea8d..28504df 100644
--- a/net/sunrpc/backchannel_rqst.c
+++ b/net/sunrpc/backchannel_rqst.c
@@ -60,7 +60,7 @@ static void xprt_free_allocation(struct rpc_rqst *req)
dprintk("RPC: free allocations for req= %p\n", req);
WARN_ON_ONCE(test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state));
- xbufp = &req->rq_private_buf;
+ xbufp = &req->rq_rcv_buf;
free_page((unsigned long)xbufp->head[0].iov_base);
xbufp = &req->rq_snd_buf;
free_page((unsigned long)xbufp->head[0].iov_base);
--
1.9.1
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