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Hugh Dickins 2e7842b887 [PATCH] fix umask when noACL kernel meets extN tuned for ACLs ... Fix insecure default behaviour reported by Tigran Aivazian: if an ext2 or ext3 or ext4 filesystem is tuned to mount with "acl", but mounted by a kernel built without ACL support, then umask was ignored when creating inodes - though root or user has umask 022, touch creates files as 0666, and mkdir creates directories as 0777. This appears to have worked right until 2.6.11, when a fix to the default mode on symlinks (always 0777) assumed VFS applies umask: which it does, unless the mount is marked for ACLs; but ext[234] set MS_POSIXACL in s_flags according to s_mount_opt set according to def_mount_opts. We could revert to the 2.6.10 ext[234]_init_acl (adding an S_ISLNK test); but other filesystems only set MS_POSIXACL when ACLs are configured. We could fix this at another level; but it seems most robust to avoid setting the s_mount_opt flag in the first place (at the expense of more ifdefs). Likewise don't set the XATTR_USER flag when built without XATTR support. Signed-off-by: Hugh Dickins <hugh@veritas.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Cc: <linux-ext4@vger.kernel.org> Cc: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		18 years ago
..
Makefile	…
acl.c	…
acl.h	…
balloc.c	…
dir.c	[PATCH] ext2: skip pages past number of blocks in ext2_find_entry	18 years ago
ext2.h	…
file.c	…
fsync.c	…
ialloc.c	…
inode.c	…
ioctl.c	[PATCH] ext2: change uses of f_{dentry, vfsmnt} to use f_path	18 years ago
namei.c	…
super.c	[PATCH] fix umask when noACL kernel meets extN tuned for ACLs	18 years ago
symlink.c	…
xattr.c	[PATCH] Remove superfluous lock_super() in extN xattr code	18 years ago
xattr.h	…
xattr_security.c	…
xattr_trusted.c	…
xattr_user.c	…
xip.c	…
xip.h	…