1 files changed, 37 insertions, 0 deletions
diff --git a/app-text/calibre/files/calibre-2.83.0-lzxd-bounds-error-bug-540596.patch b/app-text/calibre/files/calibre-2.83.0-lzxd-bounds-error-bug-540596.patch
new file mode 100644
index 00000000..5f7d5a46
--- /dev/null
+++ b/app-text/calibre/files/calibre-2.83.0-lzxd-bounds-error-bug-540596.patch
@@ -0,0 +1,37 @@
+From f335c8719b224d3ca7a967b6e91cebd5b26684fe Mon Sep 17 00:00:00 2001
+From: Zac Medico <zmedico@gentoo.org>
+Date: Sun, 23 Apr 2017 16:13:00 -0700
+Subject: [PATCH] Fix bounds error in lzxd_static_init
+
+https://bugs.gentoo.org/show_bug.cgi?id=540596
+https://github.com/kovidgoyal/calibre/pull/650
+
+This includes the changes from the following upstream commits:
+
+https://github.com/kyz/libmspack/commit/6a42ddd1d472afeaf0f7da91e16b60ab2063fb92
+https://github.com/kyz/libmspack/commit/ce3cc03aa500dd9c0b6b820f9519f6b6b9dede05
+---
+ src/calibre/utils/lzx/lzxd.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/calibre/utils/lzx/lzxd.c b/src/calibre/utils/lzx/lzxd.c
+index e683a9e..c531aaa 100644
+--- a/src/calibre/utils/lzx/lzxd.c
++++ b/src/calibre/utils/lzx/lzxd.c
+@@ -357,11 +357,12 @@ static unsigned char extra_bits[51];
+ static void lzxd_static_init(void) {
+   int i, j;
+ 
+-  for (i = 0, j = 0; i < 51; i += 2) {
++  for (i = 0, j = 0; i < 50; i += 2) {
+     extra_bits[i]   = j; /* 0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7... */
+     extra_bits[i+1] = j;
+     if ((i != 0) && (j < 17)) j++; /* 0,0,1,2,3,4...15,16,17,17,17,17... */
+   }
++  extra_bits[50] = 17;
+ 
+   for (i = 0, j = 0; i < 51; i++) {
+     position_base[i] = j; /* 0,1,2,3,4,6,8,12,16,24,32,... */
+-- 
+2.10.2
+