From f657d3d60096119392760e7c9dfee67549d4b6f3 Mon Sep 17 00:00:00 2001
From: Bernhard Schelling <14200249+schellingb@users.noreply.github.com>
Date: Fri, 7 Aug 2020 21:13:40 +0900
Subject: [PATCH] More index validation and avoid qsort with NULL

---
 playlist.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/playlist.c b/playlist.c
index f80e407d04..e97c5895c5 100644
--- a/playlist.c
+++ b/playlist.c
@@ -2878,7 +2878,8 @@ void playlist_qsort(playlist_t *playlist)
    /* Avoid inadvertent sorting if 'sort mode'
     * has been set explicitly to PLAYLIST_SORT_MODE_OFF */
    if (!playlist ||
-       (playlist->sort_mode == PLAYLIST_SORT_MODE_OFF))
+       (playlist->sort_mode == PLAYLIST_SORT_MODE_OFF) ||
+       !playlist->entries)
       return;
 
    qsort(playlist->entries, RBUF_LEN(playlist->entries),
@@ -2975,7 +2976,7 @@ bool playlist_entries_are_equal(
 void playlist_get_crc32(playlist_t *playlist, size_t idx,
       const char **crc32)
 {
-   if (!playlist)
+   if (!playlist || idx >= RBUF_LEN(playlist->entries))
       return;
 
    if (crc32)
@@ -2985,7 +2986,7 @@ void playlist_get_crc32(playlist_t *playlist, size_t idx,
 void playlist_get_db_name(playlist_t *playlist, size_t idx,
       const char **db_name)
 {
-   if (!playlist)
+   if (!playlist || idx >= RBUF_LEN(playlist->entries))
       return;
 
    if (db_name)