From c4d12fa6ad2f72bfd7834477cc414cc4d11d663f Mon Sep 17 00:00:00 2001
From: Sebastian Wick <sebastian.wick@redhat.com>
Date: Mon, 29 Jun 2026 23:54:18 +0200
Subject: [PATCH] zstd-compressor: Abort on ZSTD_initCStream error

This doesn't seem to happen in practice, but the API says it's possible,
so we better abort than run into weird states.
---
 common/flatpak-zstd-compressor.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/common/flatpak-zstd-compressor.c b/common/flatpak-zstd-compressor.c
index da65b875d..67d6156e8 100644
--- a/common/flatpak-zstd-compressor.c
+++ b/common/flatpak-zstd-compressor.c
@@ -104,8 +104,14 @@ flatpak_zstd_compressor_reset (GConverter *converter)
 {
 #ifdef HAVE_ZSTD
   FlatpakZstdCompressor *compressor = FLATPAK_ZSTD_COMPRESSOR (converter);
+  size_t res;
 
-  ZSTD_initCStream(compressor->cstream, compressor->level);
+  res = ZSTD_initCStream (compressor->cstream, compressor->level);
+  if (ZSTD_isError (res))
+    {
+      g_error ("FlatpakZstdCompressor: failed to reset zstd stream: %s",
+               ZSTD_getErrorName (res));
+    }
 #endif
 }