[rpms/darktable] f43: Add cve-2026-5318.patch

[rpms/darktable] f43: Add cve-2026-5318.patch

[Germano Massullo]

A new commit has been pushed.

Repo   : rpms/darktable
Branch : f43
Commit : 3d2fe6b7f0aafb8e4a3e4306b999f77d4322fbe2
Author : Germano Massullo (Thetra) <germano.massullo@thetra.eu>
Date   : 2026-04-03T01:08:29+02:00
Stats  : +29/-0 in 2 file(s)
URL    : https://src.fedoraproject.org/rpms/darktable/c/3d2fe6b7f0aafb8e4a3e4306b999f77d4322fbe2?branch=f43

Log:
Add cve-2026-5318.patch

---
diff --git a/cve-2026-5318.patch b/cve-2026-5318.patch
new file mode 100644
index 0000000..0be8543
--- /dev/null
+++ b/cve-2026-5318.patch
@@ -0,0 +1,27 @@
+diff -urNr darktable-5.4.1-orig/src/external/LibRaw/src/decompressors/losslessjpeg.cpp darktable-5.4.1/src/external/LibRaw/src/decompressors/losslessjpeg.cpp
+--- darktable-5.4.1-orig/src/external/LibRaw/src/decompressors/losslessjpeg.cpp	2026-01-09 10:59:59.000000000 +0100
++++ darktable-5.4.1/src/external/LibRaw/src/decompressors/losslessjpeg.cpp	2026-04-02 23:23:27.630825281 +0200
+@@ -361,6 +361,7 @@
+ 		nbits--;
+       }
+ 	hufftable.resize( size_t(1ULL << nbits));
++	uint32_t tsize = 1 << nbits;
+ 	for (unsigned i = 0; i < hufftable.size(); i++) hufftable[i] = 0;
+ 
+ 	int h = 0;
+@@ -371,10 +372,14 @@
+       {
+         for (int j = 0; j < (1 << (nbits - len - 1)); j++)
+         {
+-          hufftable[h] = ((len+1) << 16) | (uint8_t(huffval[pos] & 0xff) << 8) | uint8_t(shiftval[pos] & 0xff);
++          if (h >= tsize)
++			throw LIBRAW_EXCEPTION_IO_CORRUPT;
++          hufftable[h] = ((len + 1) << 16) | (uint8_t(huffval[pos] & 0xff) << 8) | uint8_t(shiftval[pos] & 0xff);
+           h++;
+         }
+         pos++;
++		if(pos >= 256)
++			throw LIBRAW_EXCEPTION_IO_CORRUPT;
+       }
+     }
+ 	if (!disable_cache)

diff --git a/darktable.spec b/darktable.spec
index 40a4db0..8d9d024 100644
--- a/darktable.spec
+++ b/darktable.spec
@@ -21,6 +21,8 @@ Source0: https://github.com/darktable-org/darktable/releases/download/release-%{
 Patch0: 0001-Add-5.4.1-in-appdata.patch
 
 Patch1: darktable-5.4.1-lua-5.5.patch
+# https://bugzilla.redhat.com/show_bug.cgi?id=2454222
+Patch2: cve-2026-5318.patch
 
 BuildRequires: cairo-devel
 # clang is optional (OpenCL kernel build test)