tree 5c1caf2bd836717a088cdf7475b17ff8b6bd1977
parent df99c2e77cdcc6b1e335270181c636ddddb1161c
author Sunil Khatri <sunilkh@codeaurora.org> 1466586931 +0530
committer Carol_Jiang <carol_jiang@asus.com> 1473415045 +0800

ashmem: Validate ashmem memory with fops pointer

CVE-2016-5340

Validate the ashmem memory entry against f_op pointer
rather then comparing its name with path of the dentry.

This is to avoid any invalid access to ashmem area in cases
where some one deliberately set the dentry name to /ashmem.

Change-Id: I74e50cd244f68cb13009cf2355e528485f4de34b
Signed-off-by: Sunil Khatri <sunilkh@codeaurora.org>
Reviewed-on: http://mcrd1-22-pc.corpnet.asus/code-review/master/250139
Reviewed-by: steve yang <steve2_yang@asus.com>
Tested-by: steve yang <steve2_yang@asus.com>
Reviewed-by: Carol_Jiang <carol_jiang@asus.com>