linux-sg2042/fs/ext3
Satyam Sharma 3bd858ab1c Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check
Introduce is_owner_or_cap() macro in fs.h, and convert over relevant
users to it. This is done because we want to avoid bugs in the future
where we check for only effective fsuid of the current task against a
file's owning uid, without simultaneously checking for CAP_FOWNER as
well, thus violating its semantics.
[ XFS uses special macros and structures, and in general looked ...
untouchable, so we leave it alone -- but it has been looked over. ]

The (current->fsuid != inode->i_uid) check in generic_permission() and
exec_permission_lite() is left alone, because those operations are
covered by CAP_DAC_OVERRIDE and CAP_DAC_READ_SEARCH. Similarly operations
falling under the purview of CAP_CHOWN and CAP_LEASE are also left alone.

Signed-off-by: Satyam Sharma <ssatyam@cse.iitk.ac.in>
Cc: Al Viro <viro@ftp.linux.org.uk>
Acked-by: Serge E. Hallyn <serge@hallyn.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 12:00:03 -07:00
..
Makefile [PATCH] ext3: uninline large functions 2006-12-07 08:39:35 -08:00
acl.c Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check 2007-07-17 12:00:03 -07:00
acl.h [PATCH] Remove leftover ext3 acl declarations 2006-07-10 13:24:26 -07:00
balloc.c [PATCH] ext[234]: update documentation 2007-02-20 17:10:14 -08:00
bitmap.c [PATCH] ext3 and jbd cleanup: remove whitespace 2006-09-27 08:26:09 -07:00
dir.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ext3_jbd.c [PATCH] ext3: uninline large functions 2006-12-07 08:39:35 -08:00
file.c sendfile: remove .sendfile from filesystems that use generic_file_sendfile() 2007-07-10 08:04:13 +02:00
fsync.c [PATCH] ext3 and jbd cleanup: remove whitespace 2006-09-27 08:26:09 -07:00
hash.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
ialloc.c [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
inode.c ext3: remove extra IS_RDONLY() check 2007-07-16 09:05:48 -07:00
ioctl.c Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid check 2007-07-17 12:00:03 -07:00
namei.c ext3/ext4: orphan list corruption due bad inode 2007-07-16 09:05:46 -07:00
namei.h [PATCH] ext3: sparse fixes 2005-10-30 17:37:25 -08:00
resize.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
super.c knfsd: exportfs: add exportfs.h header 2007-07-17 10:23:06 -07:00
symlink.c [PATCH] mark struct inode_operations const 1 2007-02-12 09:48:46 -08:00
xattr.c [PATCH] "ext[34]: EA block reference count racing fix" performance fix 2007-03-23 11:01:22 -07:00
xattr.h Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
xattr_security.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
xattr_trusted.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
xattr_user.c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00