Ryan Ware 8592536bcf EVM: Use crypto_memneq() for digest comparisons ... commit 613317bd21 upstream. This patch fixes vulnerability CVE-2016-2085. The problem exists because the vm_verify_hmac() function includes a use of memcmp(). Unfortunately, this allows timing side channel attacks; specifically a MAC forgery complexity drop from 2^128 to 2^12. This patch changes the memcmp() to the cryptographically safe crypto_memneq(). Reported-by: Xiaofei Rex Guo <xiaofei.rex.guo@intel.com> Signed-off-by: Ryan Ware <ware@linux.intel.com> Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by: James Morris <james.l.morris@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-02-17 12:31:04 -08:00
..
evm_crypto.c	KEYS: Merge the type-specific data with the payload data	2015-10-21 15:18:36 +01:00
evm_main.c	EVM: Use crypto_memneq() for digest comparisons	2016-02-17 12:31:04 -08:00
evm_posix_acl.c
evm_secfs.c
evm.h
Kconfig
Makefile