On 25.08.2023 12:29, Dmitry Frolov wrote:
> It is true, that there is no problem during runtime
> from the first sight, because the memmory is lost just
> before qemu exits. Nevertheless, this change is necessary,
> because AddressSanitizer is not able to recognize this
> situation and produces crash-report (which is
> false-positive in fact). Lots of False-Positive warnings
> are davaluing problems, found with fuzzing, and thus the
> whole methodology of dynamic analysis.
> This patch eliminates such False-Positive reports,
> and makes every problem, found with fuzzing, more valuable.

It would be good to separe answer to the previous mail and commit message.

> 
> Fixes: 060ab76356 ("gtk: don't exit early in case gtk init fails")
> 
> Signed-off-by: Dmitry Frolov <fro...@swemel.ru>
> ---
> v2: Moved declarations in the beginning.
> 
>  ui/gtk.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/ui/gtk.c b/ui/gtk.c
> index 8ba41c8f13..23a78787df 100644
> --- a/ui/gtk.c
> +++ b/ui/gtk.c
> @@ -2360,7 +2360,7 @@ static void gtk_display_init(DisplayState *ds, 
> DisplayOptions *opts)
>  {
>      VirtualConsole *vc;
>  
> -    GtkDisplayState *s = g_malloc0(sizeof(*s));
> +    GtkDisplayState *s;
>      GdkDisplay *window_display;
>      GtkIconTheme *theme;
>      char *dir;
> @@ -2372,6 +2372,7 @@ static void gtk_display_init(DisplayState *ds, 
> DisplayOptions *opts)
>      assert(opts->type == DISPLAY_TYPE_GTK);>      s->opts = opts;
's' is already used here.

>  
> +    *s = g_malloc0(sizeof(*s));
s = g_malloc0(sizeof(*s));

>      theme = gtk_icon_theme_get_default();
>      dir = get_relocated_path(CONFIG_QEMU_ICONDIR);
>      gtk_icon_theme_prepend_search_path(theme, dir);


Otherwise, I belive the change makes sense.

--
Alexey Khoroshilov
Linux Verification Center, ISPRAS


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