Eric Biggers 08ae877f4e fscrypto: don't use on-stack buffer for filename encryption ... With the new (in 4.9) option to use a virtually-mapped stack (CONFIG_VMAP_STACK), stack buffers cannot be used as input/output for the scatterlist crypto API because they may not be directly mappable to struct page. For short filenames, fname_encrypt() was encrypting a stack buffer holding the padded filename. Fix it by encrypting the filename in-place in the output buffer, thereby making the temporary buffer unnecessary. This bug could most easily be observed in a CONFIG_DEBUG_SG kernel because this allowed the BUG in sg_set_buf() to be triggered. Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2016-11-13 21:56:19 -05:00
..
crypto.c	fscrypt: Let fs select encryption index/tweak	2016-11-13 20:18:16 -05:00
fname.c	fscrypto: don't use on-stack buffer for filename encryption	2016-11-13 21:56:19 -05:00
Kconfig
keyinfo.c	fscrypto: remove unnecessary includes	2016-09-15 16:41:09 -04:00
Makefile
policy.c	fscrypto: lock inode while setting encryption policy	2016-10-15 09:48:50 -04:00