From dbc051aadc79ad96fa4c507fcba7d55437fa45b7 Mon Sep 17 00:00:00 2001
From: Pompolic <pompolic@special-circumstanc.es>
Date: Mon, 26 Jul 2021 19:44:12 +0200
Subject: [PATCH] Fix off-by-one in partial ASCII85 group validation
---
pdf.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/pdf.c b/pdf.c
index ffd7874..fc31efb 100644
--- a/pdf.c
+++ b/pdf.c
@@ -466,7 +466,7 @@ act_a85partial2group(const HParseResult *p, void *u)
bool
validate_a85partial2group(HParseResult *p, void *u)
{
- return ((H_CAST_BYTES(p->ast).token[0] << 24) + (H_CAST_BYTES(p->ast).token[1] << 16)) <= A85GRPMAX;
+ return (H_CAST_BYTES(p->ast).token[0] << 24) <= A85GRPMAX;
}
HParsedToken *
@@ -506,7 +506,7 @@ act_a85partial3group(const HParseResult *p, void *u)
bool
validate_a85partial3group(HParseResult *p, void *u)
{
- return ((H_CAST_BYTES(p->ast).token[0] << 24) + (H_CAST_BYTES(p->ast).token[1] << 16) + (H_CAST_BYTES(p->ast).token[2] << 8)) <= A85GRPMAX;
+ return ((H_CAST_BYTES(p->ast).token[0] << 24) + (H_CAST_BYTES(p->ast).token[1] << 16)) <= A85GRPMAX;
}
HParsedToken *
--
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