diff --git a/backport-CVE-2022-0907.patch b/backport-CVE-2022-0907.patch
new file mode 100644
index 0000000..ce1af73
--- /dev/null
+++ b/backport-CVE-2022-0907.patch
@@ -0,0 +1,89 @@
+From 10b4736669928673cc9a5c5f2a88ffdc92f1b560 Mon Sep 17 00:00:00 2001
+From: Augustus <wangdw.augustus@qq.com>
+Date: Mon, 7 Mar 2022 18:21:49 +0800
+Subject: [PATCH 1/3] add checks for return value of limitMalloc (#392)
+
+---
+ tools/tiffcrop.c | 33 +++++++++++++++++++++------------
+ 1 file changed, 21 insertions(+), 12 deletions(-)
+
+diff --git a/tools/tiffcrop.c b/tools/tiffcrop.c
+index 302a7e9..e407bf5 100644
+--- a/tools/tiffcrop.c
++++ b/tools/tiffcrop.c
+@@ -7357,7 +7357,11 @@ createImageSection(uint32_t sectsize, unsigned char **sect_buff_ptr)
+   if (!sect_buff)
+     {
+     sect_buff = (unsigned char *)limitMalloc(sectsize);
+-    *sect_buff_ptr = sect_buff;
++    if (!sect_buff)
++    {
++        TIFFError("createImageSection", "Unable to allocate/reallocate section buffer");
++        return (-1);
++    }
+     _TIFFmemset(sect_buff, 0, sectsize);
+     }
+   else
+@@ -7373,15 +7377,15 @@ createImageSection(uint32_t sectsize, unsigned char **sect_buff_ptr)
+       else
+         sect_buff = new_buff;
+ 
++      if (!sect_buff)
++      {
++          TIFFError("createImageSection", "Unable to allocate/reallocate section buffer");
++          return (-1);
++      }
+       _TIFFmemset(sect_buff, 0, sectsize);
+       }
+     }
+ 
+-  if (!sect_buff)
+-    {
+-    TIFFError("createImageSection", "Unable to allocate/reallocate section buffer");
+-    return (-1);
+-    }
+   prev_sectsize = sectsize;
+   *sect_buff_ptr = sect_buff;
+ 
+@@ -7648,7 +7652,11 @@ createCroppedImage(struct image_data *image, struct crop_mask *crop,
+   if (!crop_buff)
+     {
+     crop_buff = (unsigned char *)limitMalloc(cropsize);
+-    *crop_buff_ptr = crop_buff;
++    if (!crop_buff)
++    {
++        TIFFError("createCroppedImage", "Unable to allocate/reallocate crop buffer");
++        return (-1);
++    }
+     _TIFFmemset(crop_buff, 0, cropsize);
+     prev_cropsize = cropsize;
+     }
+@@ -7664,15 +7672,15 @@ createCroppedImage(struct image_data *image, struct crop_mask *crop,
+         }
+       else
+         crop_buff = new_buff;
++      if (!crop_buff)
++      {
++          TIFFError("createCroppedImage", "Unable to allocate/reallocate crop buffer");
++          return (-1);
++      }
+       _TIFFmemset(crop_buff, 0, cropsize);
+       }
+     }
+ 
+-  if (!crop_buff)
+-    {
+-    TIFFError("createCroppedImage", "Unable to allocate/reallocate crop buffer");
+-    return (-1);
+-    }
+   *crop_buff_ptr = crop_buff;
+ 
+   if (crop->crop_mode & CROP_INVERT)
+@@ -9231,3 +9239,4 @@ invertImage(uint16_t photometric, uint16_t spp, uint16_t bps, uint32_t width, ui
+  * fill-column: 78
+  * End:
+  */
++
+-- 
+2.35.1
+
diff --git a/libtiff.spec b/libtiff.spec
index a69c493..88ba576 100644
--- a/libtiff.spec
+++ b/libtiff.spec
@@ -1,6 +1,6 @@
 Name:           libtiff
 Version:        4.3.0
-Release:        6
+Release:        7
 Summary:        TIFF Library and Utilities
 License:        libtiff
 URL:            https://www.simplesystems.org/libtiff/
@@ -12,7 +12,8 @@ Patch6002:	backport-0001-CVE-2022-22844.patch
 Patch6003:	backport-0002-CVE-2022-22844.patch
 Patch6004:	backport-0003-CVE-2022-22844.patch
 Patch6005:	backport-CVE-2022-0891.patch
-Patch6006:      backport-CVE-2022-0908.patch
+Patch6006:      backport-CVE-2022-0907.patch
+Patch6007:      backport-CVE-2022-0908.patch
 
 BuildRequires:  gcc gcc-c++ zlib-devel libjpeg-devel jbigkit-devel
 BuildRequires:  libtool automake autoconf pkgconfig 
@@ -133,6 +134,9 @@ find html -name 'Makefile*' | xargs rm
 %exclude %{_datadir}/html/man/tiffgt.1.html
 
 %changelog
+* Mon Mar 28 2022 yangcheng <yangcheng87@h-partners.com> - 4.3.0-7
+- fix CVE-2022-0907
+
 * Tue Mar 22 2022 yangcheng <yangcheng87@h-partners.com> - 4.3.0-6
 - Type:cve
 - ID:CVE-2022-0908