Fix multiple vulnerabilities (closes: #850432)

- New patch 934_menu.patch to fix buffer overflow (tats/w3m#49)
- New patch 935_shiftanchor.patch to fix buffer overflow (tats/w3m#62)
- New patch 936_metarefresh.patch to fix buffer overflow (tats/w3m#63)
- New patch 937_lineproc0.patch to fix buffer overflow (tats/w3m#67)
- New patch 938_lineproc2body.patch to fix buffer overflow (tats/w3m#61)
- New patch 939_textarea.patch to fix buffer overflow (tats/w3m#58)
- New patch 940_tabattr.patch to fix buffer overflow (tats/w3m#60)
- New patch 941_integeredwidth.patch to fix buffer overflow (tats/w3m#70)
- New patch 942_tridvalue.patch to fix buffer overflow (tats/w3m#71)
- New patch 943_pushlink.patch to fix buffer overflow (tats/w3m#64, #66)
- New patch 944_lineproc0.patch to fix use after free (tats/w3m#65)
- New patch 945_wtfstrwidth.patch to fix buffer overflow (tats/w3m#57)
- New patch 946_strnewsize.patch to fix buffer overflow (tats/w3m#72)
- New patch 947_realcolumn.patch to fix buffer overflow (tats/w3m#69)
- New patch 948_getmclen.patch to fix buffer overflow
  (tats/w3m#59, #73, #74, #75, #76, #78, #79, #80, #83, #84)
- New patch 949_wtftowcs.patch to fix buffer overflow (tats/w3m#77)
- New patch 950_textarea.patch to fix infinite loop (tats/w3m#85)
- New patch 951_lineproc0.patch to fix use after free (tats/w3m#81)
- New patch 952_formupdatebuffer.patch to fix buffer overflow (tats/w3m#82)
- New patch 953_formupdateline.patch to fix buffer overflow
  (tats/w3m#68#issuecomment-266214643)
- New patch 954_wtfparse1.patch to fix buffer overflow (tats/w3m#68)

1 files changed, 26 insertions, 0 deletions

diff --git a/debian/patches/952_formupdatebuffer.patch b/debian/patches/952_formupdatebuffer.patch
new file mode 100644
index 0000000..c5b7444
--- /dev/null
+++ b/debian/patches/952_formupdatebuffer.patch
@@ -0,0 +1,26 @@
+Subject: Prevent invalid form_update_line() call in formUpdateBuffer()
+From: Tatsuya Kinoshita <tats@debian.org>
+Bug-Debian: https://github.com/tats/w3m/issues/82
+Origin: https://anonscm.debian.org/cgit/collab-maint/w3m.git/commit/?id=dc32152dc051923e322fc251aaa2dbd5e54c0fbf
+
+---
+ form.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/form.c b/form.c
+index 1aaaf19..162439a 100644
+--- a/form.c
++++ b/form.c
+@@ -490,7 +490,8 @@ formUpdateBuffer(Anchor *a, Buffer *buf, FormItemList *form)
+ 		spos = a->start.pos;
+ 		epos = a->end.pos;
+ 	    }
+-	    if (a->start.line != a->end.line || spos > epos || epos >= l->len || spos < 0 || epos < 0)
++	    if (a->start.line != a->end.line || spos > epos || epos >= l->len ||
++		spos < 0 || epos < 0 || COLPOS(l, epos) < col)
+ 		break;
+ 	    pos = form_update_line(l, &p, spos, epos, COLPOS(l, epos) - col,
+ 				   rows > 1,
+-- 
+2.10.2
+