File 0121-9pfs-add-cleanup-operation-for-prox.patch of Package qemu.7646

Overview Repositories Revisions Requests Users Attributes Meta

File 0121-9pfs-add-cleanup-operation-for-prox.patch of Package qemu.7646

From 3f2ae48a2461d0029e9935345ee223296c105ef0 Mon Sep 17 00:00:00 2001
From: Li Qiang <liq3ea@gmail.com>
Date: Wed, 23 Nov 2016 13:53:34 +0100
Subject: [PATCH] 9pfs: add cleanup operation for proxy backend driver

In the init operation of proxy backend dirver, it allocates a
V9fsProxy struct and some other resources. We should free these
resources when the 9pfs device is unrealized. This is what this
patch does.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
(cherry picked from commit 898ae90a44551d25b8e956fd87372d303c82fe68)
[BR: CVE-2016-9913 BSC#1014110]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 hw/9pfs/9p-proxy.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/hw/9pfs/9p-proxy.c b/hw/9pfs/9p-proxy.c
index 00a4eb2a7b..7c6aaf390a 100644
--- a/hw/9pfs/9p-proxy.c
+++ b/hw/9pfs/9p-proxy.c
@@ -1181,9 +1181,22 @@ static int proxy_init(FsContext *ctx)
     return 0;
 }
 
+static void proxy_cleanup(FsContext *ctx)
+{
+    V9fsProxy *proxy = ctx->private;
+
+    g_free(proxy->out_iovec.iov_base);
+    g_free(proxy->in_iovec.iov_base);
+    if (ctx->export_flags & V9FS_PROXY_SOCK_NAME) {
+        close(proxy->sockfd);
+    }
+    g_free(proxy);
+}
+
 FileOperations proxy_ops = {
     .parse_opts   = proxy_parse_opts,
     .init         = proxy_init,
+    .cleanup      = proxy_cleanup,
     .lstat        = proxy_lstat,
     .readlink     = proxy_readlink,
     .close        = proxy_close,

Places

File 0121-9pfs-add-cleanup-operation-for-prox.patch of Package qemu.7646

Places