From a96e25a44218a9530a26dbc70cf347a3e426e1a1 Mon Sep 17 00:00:00 2001
From: DarthSim <darthsim@gmail.com>
Date: Thu, 14 Nov 2019 18:47:04 +0600
Subject: [PATCH] Fix segfaults on watermarking in somme cases

---
 CHANGELOG.md | 3 +++
 process.go   | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 875a9ba1..dbda6d09 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,9 @@
 ### Changed
 - Boolean processing options such as `enlarge` and `extend` are properly parsed. `1`, `t`, `TRUE`, `true`, `True` are truthy, `0`, `f`, `F`, `FALSE`, `false`, `False` are falsy. All other values are treated as falsy and generate a warning message.
 
+### Fixed
+- Fix segfaults on watermarking in somme cases
+
 ## [2.6.2] - 2019-11-11
 ### Fixed
 - Fix `format` option in presets.
diff --git a/process.go b/process.go
index 6c390a54..91d50f1a 100644
--- a/process.go
+++ b/process.go
@@ -252,6 +252,10 @@ func applyWatermark(img *vipsImage, wmData *imageData, opts *watermarkOptions, f
 		return err
 	}
 
+	if err := img.CopyMemory(); err != nil {
+		return err
+	}
+
 	wm := new(vipsImage)
 	defer wm.Clear()