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Michael Halcrow ac97b9f9a2 eCryptfs: Allocate up to two scatterlists for crypto ops on keys ... I have received some reports of out-of-memory errors on some older AMD architectures. These errors are what I would expect to see if crypt_stat->key were split between two separate pages. eCryptfs should not assume that any of the memory sent through virt_to_scatterlist() is all contained in a single page, and so this patch allocates two scatterlist structs instead of one when processing keys. I have received confirmation from one person affected by this bug that this patch resolves the issue for him, and so I am submitting it for inclusion in a future stable release. Note that virt_to_scatterlist() runs sg_init_table() on the scatterlist structs passed to it, so the calls to sg_init_table() in decrypt_passphrase_encrypted_session_key() are redundant. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Reported-by: Paulo J. S. Silva <pjssilva@ime.usp.br> Cc: "Leon Woestenberg" <leon.woestenberg@gmail.com> Cc: Tim Gardner <tim.gardner@canonical.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		16 years ago
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Makefile	eCryptfs: remove netlink transport	16 years ago
crypto.c	ecryptfs: fix memory corruption when storing crypto info in xattrs	16 years ago
debug.c	eCryptfs: update comment and debug statement	17 years ago
dentry.c	eCryptfs: Swap dput() and mntput()	17 years ago
ecryptfs_kernel.h	eCryptfs: remove netlink transport	16 years ago
file.c	eCryptfs: remove retry loop in ecryptfs_readdir()	16 years ago
inode.c	[PATCH] kill nameidata passing to permission(), rename to inode_permission()	17 years ago
keystore.c	eCryptfs: Allocate up to two scatterlists for crypto ops on keys	16 years ago
kthread.c	eCryptfs: Privileged kthread for lower file opens	17 years ago
main.c	[PATCH] assorted path_lookup() -> kern_path() conversions	16 years ago
messaging.c	eCryptfs: remove netlink transport	16 years ago
miscdev.c	ecryptfs: discard ecryptfsd registration messages in miscdev	17 years ago
mmap.c	ecryptfs: convert to use new aops	16 years ago
read_write.c	eCryptfs: remove unnecessary page decrypt call	17 years ago
super.c	ecryptfs: remove debug as mount option, and warn if set via modprobe	17 years ago