From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 19 Aug 2021 14:53:51 +0000 (+0200)
Subject: import: don't attempt full-file clones if we only are supposed to write a part of... 
X-Git-Tag: v250-rc1~789^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=50b9c30ceaf283b6245a1c7643484616446a3b33;p=thirdparty%2Fsystemd.git

import: don't attempt full-file clones if we only are supposed to write a part of the file

Otherwise we'll copy more than we were told to.
---

diff --git a/src/import/import-raw.c b/src/import/import-raw.c
index fcb07751d20..153b74d123f 100644
--- a/src/import/import-raw.c
+++ b/src/import/import-raw.c
@@ -322,6 +322,9 @@ static int raw_import_try_reflink(RawImport *i) {
         if (i->compress.type != IMPORT_COMPRESS_UNCOMPRESSED)
                 return 0;
 
+        if (i->offset != UINT64_MAX || i->size_max != UINT64_MAX)
+                return 0;
+
         if (!S_ISREG(i->input_stat.st_mode) || !S_ISREG(i->output_stat.st_mode))
                 return 0;