new file mode 100644
@@ -0,0 +1,34 @@
+From 415b59839dcf46bb05e08de7422a21e65ab28e03 Mon Sep 17 00:00:00 2001
+From: Dirk Farin <dirk.farin@gmail.com>
+Date: Mon, 13 Apr 2026 19:49:06 +0200
+Subject: [PATCH] fix: reject malformed sequence files with saiz samples but no
+ chunks
+
+(cherry picked from commit 71755d3d41a117685a3274bdd1214fc50a760f20)
+
+CVE: CVE-2026-41071
+Upstream-Status: Backport [https://github.com/strukturag/libheif/commit/71755d3d41a117685a3274bdd1214fc50a760f20]
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ libheif/sequences/track.cc | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/libheif/sequences/track.cc b/libheif/sequences/track.cc
+index acb916fa..ac5d5687 100644
+--- a/libheif/sequences/track.cc
++++ b/libheif/sequences/track.cc
+@@ -443,6 +443,14 @@ Error Track::load(const std::shared_ptr<Box_trak>& trak_box)
+ };
+ }
+
++ if (saio->get_num_chunks() != 1 && m_chunks.empty() && saiz->get_num_samples() > 0) {
++ return Error{
++ heif_error_Invalid_input,
++ heif_suberror_Unspecified,
++ "'saiz' box references samples but no chunks exist."
++ };
++ }
++
+ if (aux_info_type == fourcc("suid")) {
+ m_aux_reader_content_ids = std::make_unique<SampleAuxInfoReader>(saiz, saio, m_chunks);
+ }
new file mode 100644
@@ -0,0 +1,44 @@
+From b79d7d2a4f1502e93739453025ac2dbfd59e514f Mon Sep 17 00:00:00 2001
+From: Dirk Farin <dirk.farin@gmail.com>
+Date: Mon, 13 Apr 2026 20:09:26 +0200
+Subject: [PATCH] fix: reject malformed sequence files where saiz sample count
+ exceeds actual samples
+
+(cherry picked from commit f20c81745e917b4c496615140385c86d7a2fa58d)
+CVE: CVE-2026-41071
+Upstream-Status: Backport [https://github.com/strukturag/libheif/commit/f20c81745e917b4c496615140385c86d7a2fa58d]
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ libheif/sequences/track.cc | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/libheif/sequences/track.cc b/libheif/sequences/track.cc
+index ac5d5687..e4b08afa 100644
+--- a/libheif/sequences/track.cc
++++ b/libheif/sequences/track.cc
+@@ -138,7 +138,9 @@ SampleAuxInfoReader::SampleAuxInfoReader(std::shared_ptr<Box_saiz> saiz,
+ for (uint32_t i = 0; i < nSamples; i++) {
+ if (!oneChunk && i > chunks[current_chunk]->last_sample_number()) {
+ current_chunk++;
+- assert(current_chunk < chunks.size());
++ if (current_chunk >= chunks.size()) {
++ break;
++ }
+ offset = saio->get_chunk_offset(current_chunk);
+ }
+
+@@ -451,6 +453,14 @@ Error Track::load(const std::shared_ptr<Box_trak>& trak_box)
+ };
+ }
+
++ if (saiz->get_num_samples() > m_stsz->num_samples()) {
++ return Error{
++ heif_error_Invalid_input,
++ heif_suberror_Unspecified,
++ "Number of samples in 'saiz' box exceeds actual number of samples."
++ };
++ }
++
+ if (aux_info_type == fourcc("suid")) {
+ m_aux_reader_content_ids = std::make_unique<SampleAuxInfoReader>(saiz, saio, m_chunks);
+ }
@@ -12,6 +12,8 @@ SRC_URI = "git://github.com/strukturag/libheif.git;protocol=https;branch=master;
file://CVE-2026-32739.patch \
file://CVE-2026-32740.patch \
file://CVE-2026-32741.patch \
+ file://CVE-2026-41071-1.patch \
+ file://CVE-2026-41071-2.patch \
"
SRCREV = "62f1b8c76ed4d8305071fdacbe74ef9717bacac5"