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Tyler Hicks 5cc0261b6a eCryptfs: Clear LOOKUP_OPEN flag when creating lower file

commit 2e21b3f124 upstream.

eCryptfs was passing the LOOKUP_OPEN flag through to the lower file
system, even though ecryptfs_create() doesn't support the flag. A valid
filp for the lower filesystem could be returned in the nameidata if the
lower file system's create() function supported LOOKUP_OPEN, possibly
resulting in unencrypted writes to the lower file.

However, this is only a potential problem in filesystems (FUSE, NFS,
CIFS, CEPH, 9p) that eCryptfs isn't known to support today.

https://bugs.launchpad.net/ecryptfs/+bug/641703

Reported-by: Kevin Buhr
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2010-12-09 13:26:45 -08:00

crypto.c

ecryptfs: use after free

2010-01-25 10:49:17 -08:00

debug.c

…

dentry.c

constify dentry_operations: ecryptfs

2009-03-27 14:44:01 -04:00

ecryptfs_kernel.h

const: mark remaining address_space_operations const

2009-09-22 07:17:24 -07:00