From 4ca6dc3853c68de723caaffb1c52159489b4abd8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
Date: Tue, 21 May 2024 08:13:18 +0300
Subject: [PATCH] gstreamer: bufferlist: Check index/length when removing a
 buffer

Out of range values give assertions in the C function.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1447>
---
 gstreamer/src/bufferlist.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gstreamer/src/bufferlist.rs b/gstreamer/src/bufferlist.rs
index d837111fe..24851e692 100644
--- a/gstreamer/src/bufferlist.rs
+++ b/gstreamer/src/bufferlist.rs
@@ -44,6 +44,10 @@ impl BufferListRef {
 
     #[doc(alias = "gst_buffer_list_remove")]
     pub fn remove(&mut self, idx: u32, len: u32) {
+        let n = self.len() as u32;
+        assert!(idx < n);
+        assert!(idx.checked_add(len).unwrap() <= n);
+
         unsafe { ffi::gst_buffer_list_remove(self.as_mut_ptr(), idx, len) }
     }