diff options
Diffstat (limited to 'meta/recipes-devtools/binutils/binutils/CVE-2017-9749.patch')
| -rw-r--r-- | meta/recipes-devtools/binutils/binutils/CVE-2017-9749.patch | 75 |
1 files changed, 75 insertions, 0 deletions
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 0000000000..a033d3dce6 --- /dev/null +++ b/meta/recipes-devtools/binutils/binutils/CVE-2017-9749.patch @@ -0,0 +1,75 @@ +commit 08c7881b814c546efc3996fd1decdf0877f7a779 +Author: Nick Clifton <nickc@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@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@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@redhat.com> ++ + PR binutils/21588 + * rl78-decode.opc (OP_BUF_LEN): Define. + (GETBYTE): Check for the index exceeding OP_BUF_LEN. |