From 241e6137a5c9a4bfccbea48ce9eac75f7f13a784 Mon Sep 17 00:00:00 2001
From: Oneric <oneric@oneric.stub>
Date: Mon, 12 Oct 2020 22:46:38 +0200
Subject: ass.c: handle style alloc failure

---
 libass/ass.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/libass/ass.c b/libass/ass.c
index f573885..38dbde1 100644
--- a/libass/ass.c
+++ b/libass/ass.c
@@ -503,6 +503,8 @@ static int process_style(ASS_Track *track, char *str)
     ass_msg(track->library, MSGL_V, "[%p] Style: %s", track, str);
 
     sid = ass_alloc_style(track);
+    if (sid < 0)
+        return -1;
 
     style = track->styles + sid;
     target = style;
@@ -621,6 +623,7 @@ static void custom_format_line_compatibility(ASS_Track *const track,
 
 static int process_styles_line(ASS_Track *track, char *str)
 {
+    int ret = 0;
     if (!strncmp(str, "Format:", 7)) {
         char *p = str + 7;
         skip_spaces(&p);
@@ -635,9 +638,9 @@ static int process_styles_line(ASS_Track *track, char *str)
     } else if (!strncmp(str, "Style:", 6)) {
         char *p = str + 6;
         skip_spaces(&p);
-        process_style(track, p);
+        ret = process_style(track, p);
     }
-    return 0;
+    return ret;
 }
 
 static inline void check_duplicate_info_line(const ASS_Track *const track,
-- 
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