From 0d96e4df4812c3bad77c229dfef47a9bc115ac12 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Thu, 15 Jun 2017 06:40:17 -0700 Subject: [PATCH] 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. --- opcodes/ChangeLog | 6 ++++++ opcodes/i386-dis.c | 10 ++++++++++ 2 files changed, 16 insertions(+) diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index e489d436750..008956a8e01 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,9 @@ +2017-06-15 H.J. Lu + + PR binutils/21594 + * i386-dis.c (OP_E_register): Check valid bnd register. + (OP_G): Likewise. + 2017-06-15 Nick Clifton PR binutils/21595 diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index b35dbc046ee..d461d085944 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -15025,6 +15025,11 @@ OP_E_register (int bytemode, int sizeflag) 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: @@ -15569,6 +15574,11 @@ OP_G (int bytemode, int sizeflag) 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: -- 2.30.2