tequilaOS/platform_bionic

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Author	SHA1	Message	Date
Josh Gao	fe9d0ed6cb	Move setjmp cookie to a shared globals struct. Change-Id: I59a4c187d61524c4e48655c4c6376dba0d41eee2	2015-10-09 15:59:04 -07:00
Josh Gao	7fda8d2aa4	Implement setjmp cookies on ARM. Reuse the top bits of _JB_SIGFLAG field previously used to store a boolean to store a cookie that's validated by [sig]longjmp to make it harder to use as a ROP gadget. Additionally, encrypt saved registers with the cookie so that an attacker can't modify a register's value to a specific value without knowing the cookie. Bug: http://b/23942752 Change-Id: Id0eb8d06916e89d5d776bfcaa9458f8826717ba3	2015-09-17 14:07:24 -07:00

Author

SHA1

Message

Date

Josh Gao

fe9d0ed6cb

Move setjmp cookie to a shared globals struct.

Change-Id: I59a4c187d61524c4e48655c4c6376dba0d41eee2

2015-10-09 15:59:04 -07:00

Josh Gao

7fda8d2aa4

Implement setjmp cookies on ARM.

Reuse the top bits of _JB_SIGFLAG field previously used to store a
boolean to store a cookie that's validated by [sig]longjmp to make it
harder to use as a ROP gadget. Additionally, encrypt saved registers
with the cookie so that an attacker can't modify a register's value to
a specific value without knowing the cookie.

Bug: http://b/23942752
Change-Id: Id0eb8d06916e89d5d776bfcaa9458f8826717ba3

2015-09-17 14:07:24 -07:00

2 commits