diff --git a/netpbm-c99-2.patch b/netpbm-c99-2.patch
new file mode 100644
index 0000000..bcb8a99
--- /dev/null
+++ b/netpbm-c99-2.patch
@@ -0,0 +1,41 @@
+Remove the contents of libjasper_compat.c.  The assignment
+
+        *errorP  = errorP;
+
+is bogus because it creates a non-null value in *errorP even on
+success, and the caller expects a null pointer int his case.
+
+The source file is compiled, but not actually linked in, so this is
+only a problem because of the type error that fails the build.
+
+diff --git a/converter/other/jpeg2000/libjasper_compat.c b/converter/other/jpeg2000/libjasper_compat.c
+index 101820a321212dc6..e69de29bb2d1d643 100644
+--- a/converter/other/jpeg2000/libjasper_compat.c
++++ b/converter/other/jpeg2000/libjasper_compat.c
+@@ -1,26 +0,0 @@
+-#include "netpbm/nstring.h"
+-
+-#include "jasper/jasper.h"
+-#include "jasper/jas_image.h"
+-
+-#ifndef JAS_HAVE_PMJAS_IMAGE_DECODE
+-
+-void
+-pmjas_image_decode(jas_stream_t * const in,
+-                   int            const fmtArg,
+-                   const char *   const optstr,
+-                   jas_image_t ** const imagePP,
+-                   const char **  const errorP) {
+-
+-    jas_image_t * const jasperP = jas_image_decode(in, fmtArg, optstr);
+-
+-    if (jasperP) {
+-        *imagePP = jasperP;
+-        *errorP  = errorP;
+-    } else {
+-        pm_asprintf(errorP, "Failed.  Details may have been written to "
+-                    "Standard Error");
+-    }
+-}
+-
+-#endif
diff --git a/netpbm-cmuwtopbm.patch b/netpbm-cmuwtopbm.patch
deleted file mode 100644
index f5b328b..0000000
--- a/netpbm-cmuwtopbm.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-diff -up netpbm-10.61.01/converter/pbm/cmuwmtopbm.c.cmuwtopbmfix netpbm-10.61.01/converter/pbm/cmuwmtopbm.c
---- netpbm-10.61.01/converter/pbm/cmuwmtopbm.c.cmuwtopbmfix	2013-01-02 18:39:57.000000000 +0100
-+++ netpbm-10.61.01/converter/pbm/cmuwmtopbm.c	2013-01-03 05:41:36.024984241 +0100
-@@ -18,7 +18,7 @@
-    This program does not check the pad bits at the end of each row.
- */
- 
--
-+#include <stdint.h>
- #include "pbm.h"
- 
- /*--------------------------
-@@ -42,7 +42,7 @@ readCmuwmHeader(FILE *         const ifP
-         "CMU window manager header EOF / read error";
-     uint32_t const cmuwmMagic = 0xf10040bb;
- 
--    long l;
-+    uint32_t l;
-     short s;
-     int rc;
- 
diff --git a/netpbm.spec b/netpbm.spec
index 4a2328c..33547e2 100644
--- a/netpbm.spec
+++ b/netpbm.spec
@@ -1,7 +1,7 @@
 Summary:         A library for handling different graphics file formats
 Name:            netpbm
 Version:         11.02.00
-Release:         4%{?dist}
+Release:         5%{?dist}
 # See copyright_summary for details
 License:         BSD and GPLv2 and IJG and MIT and Public Domain
 URL: http://netpbm.sourceforge.net/
@@ -24,12 +24,12 @@ Patch9:          netpbm-xwdfix.patch
 Patch10:         netpbm-multilib.patch
 Patch11:         netpbm-glibc.patch
 Patch12:         netpbm-docfix.patch
-Patch13:         netpbm-cmuwtopbm.patch
 Patch14:         netpbm-pamtojpeg2k.patch
 Patch15:         netpbm-manfix.patch
 Patch16:         netpbm-jasper.patch
 Patch17:         netpbm-libdir-so.patch
 Patch18:         netpbm-c99.patch
+Patch19: netpbm-c99-2.patch
 
 BuildRequires: make
 BuildRequires:   libjpeg-devel, libpng-devel, libtiff-devel, flex, gcc, jbigkit-devel
@@ -230,6 +230,11 @@ popd
 %doc userguide/*
 
 %changelog
+* Sun Jan 21 2024 Florian Weimer <fweimer@redhat.com> - 11.02.00-5
+- GCC 14 compatibility fixes:
+  Drop netpbm-cmuwtopbm.patch to fix an out-of-bounds stack write (#2259450)
+  Stub out unused converter/other/jpeg2000/libjasper_compat.c (#2259448)
+
 * Sun Jan 21 2024 Fedora Release Engineering <releng@fedoraproject.org> - 11.02.00-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild