external/hunspell/0001-invalid-read-memory-access-624.patch

   1 From ac938e2ecb48ab4dd21298126c7921689d60571b Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Caol=C3=A1n=20McNamara?= <caolanm@redhat.com>
   3 Date: Tue, 12 Nov 2019 20:03:15 +0000
   4 Subject: [PATCH] invalid read memory access #624
   5
   6 ---
   7  src/hunspell/suggestmgr.cxx | 2 +-
   8  1 file changed, 1 insertion(+), 1 deletion(-)
   9
  10 diff --git a/src/hunspell/suggestmgr.cxx b/src/hunspell/suggestmgr.cxx
  11 index dba084e..c23f165 100644
  12 --- a/src/hunspell/suggestmgr.cxx
  13 +++ b/src/hunspell/suggestmgr.cxx
  14 @@ -2040,7 +2040,7 @@ int SuggestMgr::leftcommonsubstring(
  15    int l2 = su2.size();
  16    // decapitalize dictionary word
  17    if (complexprefixes) {
  18 -    if (su1[l1 - 1] == su2[l2 - 1])
  19 +    if (l1 && l2 && su1[l1 - 1] == su2[l2 - 1])
  20        return 1;
  21    } else {
  22      unsigned short idx = su2.empty() ? 0 : (su2[0].h << 8) + su2[0].l;
  23 --
  24 2.23.0
  25