| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 044/152] xprtrdma: Double free in rpcrdma_sendctxs_create() | Date | Mon, 25 Feb 2019 22:10:36 +0100 |
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4.19-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 6e17f58c486d9554341f70aa5b63b8fbed07b3fa ]
The clean up is handled by the caller, rpcrdma_buffer_create(), so this call to rpcrdma_sendctxs_destroy() leads to a double free.
Fixes: ae72950abf99 ("xprtrdma: Add data structure to manage RDMA Send arguments") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- net/sunrpc/xprtrdma/verbs.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index 956a5ea47b58e..3d6bf790cf1fb 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -872,7 +872,7 @@ static int rpcrdma_sendctxs_create(struct rpcrdma_xprt *r_xprt) for (i = 0; i <= buf->rb_sc_last; i++) { sc = rpcrdma_sendctx_create(&r_xprt->rx_ia); if (!sc) - goto out_destroy; + return -ENOMEM; sc->sc_xprt = r_xprt; buf->rb_sc_ctxs[i] = sc; @@ -880,10 +880,6 @@ static int rpcrdma_sendctxs_create(struct rpcrdma_xprt *r_xprt) buf->rb_flags = 0; return 0; - -out_destroy: - rpcrdma_sendctxs_destroy(buf); - return -ENOMEM; } /* The sendctx queue is not guaranteed to have a size that is a -- 2.19.1
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