[OE-core] [oe-core][PATCH 1/1] gnome-desktop3: eliminate erroneous free()

[Burton, Ross]

Please don't patch a patch, but fix the patch.

Ross

On 6 March 2018 at 00:04, Joe Slater <joe.slater at windriver.com> wrote:

> gnome-desktop-thumbnail-don-t-convert-time_t-to-long.patch introduced
> a call to localtime() and a free() of the structure returned.  This is
> incorrect, as the structure is static.  For glibc 2.26, this will cause
> the program to abort.  Eliminate the free() and call localtime_r()
> which lets us allocate the tm structure.
>
> Signed-off-by: Joe Slater <joe.slater at windriver.com>
> ---
>  .../gnome-desktop/fix_erroneous_free.patch         | 35
> ++++++++++++++++++++++
>  .../gnome-desktop/gnome-desktop3_3.26.2.bb         |  1 +
>  2 files changed, 36 insertions(+)
>  create mode 100644 meta/recipes-gnome/gnome-desktop/gnome-desktop/fix_
> erroneous_free.patch
>
> diff --git a/meta/recipes-gnome/gnome-desktop/gnome-desktop/fix_erroneous_free.patch
> b/meta/recipes-gnome/gnome-desktop/gnome-desktop/fix_erroneous_free.patch
> new file mode 100644
> index 0000000..c27e4d5
> --- /dev/null
> +++ b/meta/recipes-gnome/gnome-desktop/gnome-desktop/fix_
> erroneous_free.patch
> @@ -0,0 +1,35 @@
> +gnome-desktop3: eliminate erroneous free()
> +
> +Do not free() a static structure.  Use re-entrant localtime_r().
> +
> +Upstream-Status: Pending
> +
> +Signed-off-by: Joe Slater <jslater at windriver.com>
> +
> +
> +--- a/libgnome-desktop/gnome-desktop-thumbnail.c
> ++++ b/libgnome-desktop/gnome-desktop-thumbnail.c
> +@@ -1200,7 +1200,7 @@ save_thumbnail (GdkPixbuf  *pixbuf,
> +   char *tmp_path = NULL;
> +   int tmp_fd;
> +   char mtime_str[21];
> +-  struct tm *tmp_mtime = NULL;
> ++  struct tm tmp_mtime;
> +   gboolean ret = FALSE;
> +   GError *error = NULL;
> +   const char *width, *height;
> +@@ -1220,11 +1220,10 @@ save_thumbnail (GdkPixbuf  *pixbuf,
> +     goto out;
> +   close (tmp_fd);
> +
> +-  tmp_mtime = localtime (&mtime);
> +-  if (!tmp_mtime)
> ++  if (!localtime_r (&mtime,&tmp_mtime))
> +     goto out;
> +-  strftime (mtime_str, 21, "%s", tmp_mtime);
> +-  free (tmp_mtime);
> ++
> ++  strftime (mtime_str, 21, "%s", &tmp_mtime);
> +   width = gdk_pixbuf_get_option (pixbuf, "tEXt::Thumb::Image::Width");
> +   height = gdk_pixbuf_get_option (pixbuf, "tEXt::Thumb::Image::Height");
> +
> diff --git a/meta/recipes-gnome/gnome-desktop/gnome-desktop3_3.26.2.bb
> b/meta/recipes-gnome/gnome-desktop/gnome-desktop3_3.26.2.bb
> index cd6c194..2cd3234 100644
> --- a/meta/recipes-gnome/gnome-desktop/gnome-desktop3_3.26.2.bb
> +++ b/meta/recipes-gnome/gnome-desktop/gnome-desktop3_3.26.2.bb
> @@ -14,6 +14,7 @@ SRC_URI += " \
>             file://gnome-desktop-thumbnail-don-t-convert-time_t-to-long.patch
> \
>             file://0001-configure.ac-Remove-gnome-common-macro-calls.patch
> \
>             file://0001-Disable-libseccomp-sycall-filtering-mechanism.patch
> \
> +           file://fix_erroneous_free.patch \
>             "
>
>  DEPENDS += "intltool-native gsettings-desktop-schemas gconf
> virtual/libx11 gtk+3 glib-2.0 startup-notification xkeyboard-config
> iso-codes udev"
> --
> 2.7.4
>
> --
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>
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