From: Aizal Khan <aizumusheer2@gmail.com>
Date: Sun, 5 Jul 2026 08:19:07 +0000 (+0530)
Subject: fix out-of-bounds read in rastertolabel delta-row compare
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F1644%2Fhead;p=thirdparty%2Fcups.git

fix out-of-bounds read in rastertolabel delta-row compare

Signed-off-by: Aizal Khan <aizumusheer2@gmail.com>
---

diff --git a/filter/rastertolabel.c b/filter/rastertolabel.c
index 0434d159e8..bee0f2aa8e 100644
--- a/filter/rastertolabel.c
+++ b/filter/rastertolabel.c
@@ -953,8 +953,8 @@ PCLCompress(unsigned char *line,	/* I - Line to compress */
       * The seed buffer is valid, so compare against it...
       */
 
-      while (*line_ptr == *seed &&
-             line_ptr < line_end)
+      while (line_ptr < line_end &&
+             *line_ptr == *seed)
       {
         line_ptr ++;
         seed ++;
@@ -971,8 +971,8 @@ PCLCompress(unsigned char *line,	/* I - Line to compress */
 
       start = line_ptr;
       count = 0;
-      while (*line_ptr != *seed &&
-             line_ptr < line_end &&
+      while (line_ptr < line_end &&
+             *line_ptr != *seed &&
              count < 8)
       {
         line_ptr ++;