binutils: CVE-2017-14729

binutils: CVE-2017-14729

Source: binutils-gdb.git
MR: 76278
Type: Security Fix
Disposition: Backport from binutils-2_29
ChangeID: 05de8bcd22d8d0b54badcd3826cd370b3aed81de
Description:

x86: Guard against corrupted PLT

There should be only one entry in PLT for a given symbol.  Set howto to
NULL after processing a PLT entry to guard against corrupted PLT so that
the duplicated PLT entries are skipped.

PR binutils/22170

Affects: <= 2.29
Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>
Reviewed-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Armin Kuster <akuster@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>