linux-next

mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-12 16:58:53 +00:00

History

Tyler Hicks 2aac0cf886 eCryptfs: NULL crypt_stat dereference during lookup

If ecryptfs_encrypted_view or ecryptfs_xattr_metadata were being
specified as mount options, a NULL pointer dereference of crypt_stat
was possible during lookup.

This patch moves the crypt_stat assignment into
ecryptfs_lookup_and_interpose_lower(), ensuring that crypt_stat
will not be NULL before we attempt to dereference it.

Thanks to Dan Carpenter and his static analysis tool, smatch, for
finding this bug.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Acked-by: Dustin Kirkland <kirkland@canonical.com>
Cc: Dan Carpenter <error27@gmail.com>
Cc: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2009-03-22 11:20:43 -07:00

crypto.c

eCryptfs: NULL crypt_stat dereference during lookup

2009-03-22 11:20:43 -07:00

debug.c

eCryptfs: update comment and debug statement

2007-10-16 09:43:11 -07:00

dentry.c

eCryptfs: Swap dput() and mntput()

2008-03-19 18:53:36 -07:00

ecryptfs_kernel.h

eCryptfs: NULL crypt_stat dereference during lookup