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/935_shiftanchor.patch b/debian/patches/935_shiftanchor.patch
new file mode 100644
index 0000000..7927290
--- /dev/null
+++ b/debian/patches/935_shiftanchor.patch
@@ -0,0 +1,26 @@
+Subject: Prevent negative array index for marks in shiftAnchorPosition()
+From: Tatsuya Kinoshita <tats@debian.org>
+Bug-Debian: https://github.com/tats/w3m/issues/62
+Origin: https://anonscm.debian.org/cgit/collab-maint/w3m.git/commit/?id=d57c13282afc6b7dca029f992331b7afa0413356
+
+---
+ anchor.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/anchor.c b/anchor.c
+index ecb211d..bed8db2 100644
+--- a/anchor.c
++++ b/anchor.c
+@@ -551,7 +551,8 @@ shiftAnchorPosition(AnchorList *al, HmarkerList *hl, int line, int pos,
+ 	    break;
+ 	if (a->start.pos > pos) {
+ 	    a->start.pos += shift;
+-	    if (hl && hl->marks && hl->marks[a->hseq].line == line)
++	    if (hl && hl->marks &&
++		a->hseq >= 0 && hl->marks[a->hseq].line == line)
+ 		hl->marks[a->hseq].pos = a->start.pos;
+ 	}
+ 	if (a->end.pos >= pos)
+-- 
+2.10.2
+