From 18c52640cc1aa18113b950aaf29bedcb68da31b0 Mon Sep 17 00:00:00 2001
From: m-holger <m-holger@kubitscheck.org>
Date: Sat, 29 Jun 2024 14:43:39 +0100
Subject: [PATCH] Refine #1225

---
 libqpdf/Pl_DCT.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libqpdf/Pl_DCT.cc b/libqpdf/Pl_DCT.cc
index e9a98876..5875a0e9 100644
--- a/libqpdf/Pl_DCT.cc
+++ b/libqpdf/Pl_DCT.cc
@@ -318,6 +318,9 @@ Pl_DCT::decompress(void* cinfo_p, Buffer* b)
     // jpeg_start_decompress is called. During normal use of qpdf very large JPEGs can occasionally
     // occur legitimately and therefore must be allowed during normal operations.
     cinfo->mem->max_memory_to_use = 1'000'000'000;
+    // For some corrupt files the memory used internally by libjpeg stays within the above limits
+    // even though the size written to the next pipeline is significantly larger.
+    m->corrupt_data_limit = 100'000'000;
 #endif
     jpeg_buffer_src(cinfo, b);