debian/patches/extra/CVE-2016-9916-9pfs-add-cleanup-operation-for-proxy-backend-driver.patch

   1 From ae9b5c9dae96dd8d3bdf9bb6b9a0f7a2d6f532f7 Mon Sep 17 00:00:00 2001
   2 From: Li Qiang <liq3ea@gmail.com>
   3 Date: Wed, 23 Nov 2016 13:53:34 +0100
   4 Subject: [PATCH 09/12] 9pfs: add cleanup operation for proxy backend driver
   5
   6 In the init operation of proxy backend dirver, it allocates a
   7 V9fsProxy struct and some other resources. We should free these
   8 resources when the 9pfs device is unrealized. This is what this
   9 patch does.
  10
  11 Signed-off-by: Li Qiang <liq3ea@gmail.com>
  12 Reviewed-by: Greg Kurz <groug@kaod.org>
  13 Signed-off-by: Greg Kurz <groug@kaod.org>
  14 ---
  15  hw/9pfs/9p-proxy.c | 13 +++++++++++++
  16  1 file changed, 13 insertions(+)
  17
  18 diff --git a/hw/9pfs/9p-proxy.c b/hw/9pfs/9p-proxy.c
  19 index f265501..336e9fe 100644
  20 --- a/hw/9pfs/9p-proxy.c
  21 +++ b/hw/9pfs/9p-proxy.c
  22 @@ -1179,9 +1179,22 @@ static int proxy_init(FsContext *ctx)
  23      return 0;
  24  }
  25
  26 +static void proxy_cleanup(FsContext *ctx)
  27 +{
  28 +    V9fsProxy *proxy = ctx->private;
  29 +
  30 +    g_free(proxy->out_iovec.iov_base);
  31 +    g_free(proxy->in_iovec.iov_base);
  32 +    if (ctx->export_flags & V9FS_PROXY_SOCK_NAME) {
  33 +        close(proxy->sockfd);
  34 +    }
  35 +    g_free(proxy);
  36 +}
  37 +
  38  FileOperations proxy_ops = {
  39      .parse_opts   = proxy_parse_opts,
  40      .init         = proxy_init,
  41 +    .cleanup      = proxy_cleanup,
  42      .lstat        = proxy_lstat,
  43      .readlink     = proxy_readlink,
  44      .close        = proxy_close,
  45 --
  46 2.1.4
  47