blob: 3ad32189b107e432e418f2b65fc3de8e29fdfb4a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
commit 0d96e4df4812c3bad77c229dfef47a9bc115ac12
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Jun 15 06:40:17 2017 -0700
i386-dis: Check valid bnd register
Since there are only 4 bnd registers, return "(bad)" for register
number > 3.
PR binutils/21594
* i386-dis.c (OP_E_register): Check valid bnd register.
(OP_G): Likewise.
Upstream-Status: Backport
CVE: CVE-2017-9755
Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
Index: git/opcodes/i386-dis.c
===================================================================
--- git.orig/opcodes/i386-dis.c 2017-09-21 15:38:46.907182525 +0530
+++ git/opcodes/i386-dis.c 2017-09-21 15:38:54.703174976 +0530
@@ -15211,6 +15211,11 @@
names = address_mode == mode_64bit ? names64 : names32;
break;
case bnd_mode:
+ if (reg > 0x3)
+ {
+ oappend ("(bad)");
+ return;
+ }
names = names_bnd;
break;
case indir_v_mode:
@@ -15751,6 +15756,11 @@
oappend (names64[modrm.reg + add]);
break;
case bnd_mode:
+ if (modrm.reg > 0x3)
+ {
+ oappend ("(bad)");
+ return;
+ }
oappend (names_bnd[modrm.reg]);
break;
case v_mode:
Index: git/opcodes/ChangeLog
===================================================================
--- git.orig/opcodes/ChangeLog 2017-09-21 15:38:54.531175122 +0530
+++ git/opcodes/ChangeLog 2017-09-21 15:45:32.264491166 +0530
@@ -1,3 +1,9 @@
+2017-06-15 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR binutils/21594
+ * i386-dis.c (OP_E_register): Check valid bnd register.
+ (OP_G): Likewise.
+
2017-06-15 Nick Clifton <nickc@redhat.com>
PR binutils/21586
|
