xavi/android_kernel_m2note/arch/x86/kernel/microcode_intel_early.c, branch lp-5.1Unnamed repository; edit this file 'description' to name the repository.
https://gitea.privatedns.org/xavi/android_kernel_m2note/atom?h=lp-5.12016-08-26T17:15:07+00:00x86/microcode/intel: Guard against stack overflow in the loader2016-08-26T17:15:07+00:00Quentin Casasnovasquentin.casasnovas@oracle.com2015-02-03T12:00:22+00:00urn:sha1:1f776d4adecb97c361dd083926f77c2fe3e9f45c
commit f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4 upstream.
mc_saved_tmp is a static array allocated on the stack, we need to make
sure mc_saved_count stays within its bounds, otherwise we're overflowing
the stack in _save_mc(). A specially crafted microcode header could lead
to a kernel crash or potentially kernel execution.
Signed-off-by: Quentin Casasnovas <quentin.casasnovas@oracle.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1422964824-22056-1-git-send-email-quentin.casasnovas@oracle.com
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stefan Guendhoer <stefan@guendhoer.com>
first commit2016-08-15T02:19:42+00:00Meizu OpenSourcepatchwork@meizu.com2016-08-15T02:19:42+00:00urn:sha1:d2e1446d81725c351dc73a03b397ce043fb18452