x86/microcode/intel: Fix out of bounds memory access to the extended header

Improper pointer arithmetics when calculating the address of the
extended header could lead to an out of bounds memory read and kernel
panic.

Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Link: http://lkml.kernel.org/r/20150225094125.GB30434@chrystal.uk.oracle.com
Signed-off-by: Borislav Petkov <bp@suse.de>
This commit is contained in:
Quentin Casasnovas 2015-02-26 18:03:59 +01:00 • committed by Borislav Petkov
commit d496a002ae