pve-qemu/debian/patches/extra/CVE-2016-9916-9pfs-add-clea...

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1.3 KiB
Diff

From ae9b5c9dae96dd8d3bdf9bb6b9a0f7a2d6f532f7 Mon Sep 17 00:00:00 2001
From: Li Qiang <liq3ea@gmail.com>
Date: Wed, 23 Nov 2016 13:53:34 +0100
Subject: [PATCH 09/12] 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>
---
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 f265501..336e9fe 100644
--- a/hw/9pfs/9p-proxy.c
+++ b/hw/9pfs/9p-proxy.c
@@ -1179,9 +1179,22 @@ 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,
--
2.1.4