[oe-commits] [openembedded-core] 29/51: binutils: CVE-2017-9749

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commit 3306cbace5069e58bb62f31ec91ca805410bd949
Author: Thiruvadi Rajaraman <trajaraman at mvista.com>
AuthorDate: Thu Sep 21 19:06:01 2017 +0530

    binutils: CVE-2017-9749
    
    Source: binutils-gdb.git
    MR: 74010
    Type: Security Fix
    Disposition: Backport from binutils-2_29
    ChangeID: 5b89fbcab899af53585b61bd40724a38bff831d3
    Description:
    
      Prevent invalid array accesses when disassembling a corrupt bfin binary.
    
            PR binutils/21586
            * bfin-dis.c (gregs): Clip index to prevent overflow.
            (regs): Likewise.
            (regs_lo): Likewise.
            (regs_hi): Likewise.
    
    Affects: <= 2.28
    Author: Nick Clifton <nickc at redhat.com>
    Signed-off-by: Thiruvadi Rajaraman <trajaraman at mvista.com>
    Reviewed-by: Armin Kuster <akuster at mvista.com>
    Signed-off-by: Armin Kuster <akuster at mvista.com>
    Signed-off-by: Armin Kuster <akuster808 at gmail.com>
---
 meta/recipes-devtools/binutils/binutils-2.27.inc   |  1 +
 .../binutils/binutils/CVE-2017-9749.patch          | 75 ++++++++++++++++++++++
 2 files changed, 76 insertions(+)

diff --git a/meta/recipes-devtools/binutils/binutils-2.27.inc b/meta/recipes-devtools/binutils/binutils-2.27.inc
index 5c3d3ca..5e1e0be 100644
--- a/meta/recipes-devtools/binutils/binutils-2.27.inc
+++ b/meta/recipes-devtools/binutils/binutils-2.27.inc
@@ -79,6 +79,7 @@ SRC_URI = "\
      file://CVE-2017-7299_1.patch \
      file://CVE-2017-7299_2.patch \
      file://CVE-2017-9751.patch \
+     file://CVE-2017-9749.patch \
 "
 S  = "${WORKDIR}/git"
 
diff --git a/meta/recipes-devtools/binutils/binutils/CVE-2017-9749.patch b/meta/recipes-devtools/binutils/binutils/CVE-2017-9749.patch
new file mode 100644
index 0000000..a033d3d
--- /dev/null
+++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-9749.patch
@@ -0,0 +1,75 @@
+commit 08c7881b814c546efc3996fd1decdf0877f7a779
+Author: Nick Clifton <nickc at redhat.com>
+Date:   Thu Jun 15 11:52:02 2017 +0100
+
+    Prevent invalid array accesses when disassembling a corrupt bfin binary.
+    
+    	PR binutils/21586
+    	* bfin-dis.c (gregs): Clip index to prevent overflow.
+    	(regs): Likewise.
+    	(regs_lo): Likewise.
+    	(regs_hi): Likewise.
+
+Upstream-Status: Backport
+
+CVE: CVE-2017-9749
+Signed-off-by: Thiruvadi Rajaraman <trajaraman at mvista.com>
+
+Index: git/opcodes/bfin-dis.c
+===================================================================
+--- git.orig/opcodes/bfin-dis.c	2017-09-21 13:53:52.667168259 +0530
++++ git/opcodes/bfin-dis.c	2017-09-21 13:54:00.603231339 +0530
+@@ -350,7 +350,7 @@
+   REG_P0, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP,
+ };
+ 
+-#define gregs(x, i) REGNAME (decode_gregs[((i) << 3) | (x)])
++#define gregs(x, i) REGNAME (decode_gregs[(((i) << 3) | (x)) & 15])
+ 
+ /* [dregs pregs (iregs mregs) (bregs lregs)].  */
+ static const enum machine_registers decode_regs[] =
+@@ -361,7 +361,7 @@
+   REG_B0, REG_B1, REG_B2, REG_B3, REG_L0, REG_L1, REG_L2, REG_L3,
+ };
+ 
+-#define regs(x, i) REGNAME (decode_regs[((i) << 3) | (x)])
++#define regs(x, i) REGNAME (decode_regs[(((i) << 3) | (x)) & 31])
+ 
+ /* [dregs pregs (iregs mregs) (bregs lregs) Low Half].  */
+ static const enum machine_registers decode_regs_lo[] =
+@@ -372,7 +372,7 @@
+   REG_BL0, REG_BL1, REG_BL2, REG_BL3, REG_LL0, REG_LL1, REG_LL2, REG_LL3,
+ };
+ 
+-#define regs_lo(x, i) REGNAME (decode_regs_lo[((i) << 3) | (x)])
++#define regs_lo(x, i) REGNAME (decode_regs_lo[(((i) << 3) | (x)) & 31])
+ 
+ /* [dregs pregs (iregs mregs) (bregs lregs) High Half].  */
+ static const enum machine_registers decode_regs_hi[] =
+@@ -383,7 +383,7 @@
+   REG_BH0, REG_BH1, REG_BH2, REG_BH3, REG_LH0, REG_LH1, REG_LH2, REG_LH3,
+ };
+ 
+-#define regs_hi(x, i) REGNAME (decode_regs_hi[((i) << 3) | (x)])
++#define regs_hi(x, i) REGNAME (decode_regs_hi[(((i) << 3) | (x)) & 31])
+ 
+ static const enum machine_registers decode_statbits[] =
+ {
+Index: git/opcodes/ChangeLog
+===================================================================
+--- git.orig/opcodes/ChangeLog	2017-09-21 13:54:00.543230862 +0530
++++ git/opcodes/ChangeLog	2017-09-21 14:06:03.772928105 +0530
+@@ -1,5 +1,13 @@
+ 2017-06-15  Nick Clifton  <nickc at redhat.com>
+ 
++	PR binutils/21586
++	* bfin-dis.c (gregs): Clip index to prevent overflow.
++	(regs): Likewise.
++	(regs_lo): Likewise.
++	(regs_hi): Likewise.
++
++2017-06-15  Nick Clifton  <nickc at redhat.com>
++
+ 	PR binutils/21588
+ 	* rl78-decode.opc (OP_BUF_LEN): Define.
+ 	(GETBYTE): Check for the index exceeding OP_BUF_LEN.

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