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authorjinming_wang <jinming_wang@foxitsoftware.com>2016-04-11 10:43:19 -0700
committerCommit bot <commit-bot@chromium.org>2016-04-11 10:43:19 -0700
commitf3209c1fe0fdea79bf2f4e2b6f77ea4ef5db1ad2 (patch)
tree34dd5c7ddf4cfc8977847af29bacb17329ec8418
parente1aebd43b0c75133f94f8b141b33d12e2e715524 (diff)
downloadpdfium-f3209c1fe0fdea79bf2f4e2b6f77ea4ef5db1ad2.tar.xz
fix infinite loops when rebuild the cross reference table
BUG=chromium:401189 Review URL: https://codereview.chromium.org/1871373002
-rw-r--r--core/fpdfapi/fpdf_parser/cpdf_parser.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/core/fpdfapi/fpdf_parser/cpdf_parser.cpp b/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
index 97b03f046c..f1816f2028 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_parser.cpp
@@ -931,9 +931,9 @@ FX_BOOL CPDF_Parser::RebuildCrossRef() {
}
pos += size;
- // If the position has not changed at all in a loop iteration, then break
- // out to prevent infinite looping.
- if (pos == saved_pos)
+ // If the position has not changed at all or went backwards in a loop
+ // iteration, then break out to prevent infinite looping.
+ if (pos <= saved_pos)
break;
}