[PATCH 3.2 020/110] SUNRPC: Fix a memory leak in the backchannel code

From: Ben Hutchings
Date: Mon Aug 10 2015 - 06:36:23 EST

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


From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>

commit 88de6af24f2b48b06c514d3c3d0a8f22fafe30bd upstream.

req->rq_private_buf isn't initialised when xprt_setup_backchannel calls

Fixes: fb7a0b9addbdb ("nfs41: New backchannel helper routines")
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
net/sunrpc/backchannel_rqst.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/sunrpc/backchannel_rqst.c
+++ b/net/sunrpc/backchannel_rqst.c
@@ -59,7 +59,7 @@ static void xprt_free_allocation(struct

dprintk("RPC: free allocations for req= %p\n", req);
BUG_ON(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);

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/