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X-Received-From: 2a00:1450:400c:c0c::243 Subject: [Qemu-devel] [PATCH 1/7] hw/rdma: Fix possible munmap call on a NULL pointer X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, yuval.shaia@oracle.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Coverity CID 1390620: we call munmap() on a NULL pointer. Reported-by: Peter Maydell Signed-off-by: Marcel Apfelbaum Reviewed-by: Yuval Shaia --- hw/rdma/vmw/pvrdma_cmd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/rdma/vmw/pvrdma_cmd.c b/hw/rdma/vmw/pvrdma_cmd.c index 99019d8741..f9dd78cb27 100644 --- a/hw/rdma/vmw/pvrdma_cmd.c +++ b/hw/rdma/vmw/pvrdma_cmd.c @@ -232,7 +232,7 @@ static int create_mr(PVRDMADev *dev, union pvrdma_cmd_r= eq *req, cmd->start, cmd->length, host_virt, cmd->access_flags, &resp->mr_handle, &resp->lkey, &resp->rkey); - if (!resp->hdr.err) { + if (host_virt && !resp->hdr.err) { munmap(host_virt, cmd->length); } =20 --=20 2.14.3