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Serge E. Hallyn 7ea6600148 generic_permission: MAY_OPEN is not write access 
generic_permission was refusing CAP_DAC_READ_SEARCH-enabled
processes from opening DAC-protected files read-only, because
do_filp_open adds MAY_OPEN to the open mask.

Ignore MAY_OPEN.  After this patch, CAP_DAC_READ_SEARCH is
again sufficient to open(fname, O_RDONLY) on a file to which
DAC otherwise refuses us read permission.

Reported-by: Mike Kazantsev <mk.fraggod@gmail.com>
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Tested-by: Mike Kazantsev <mk.fraggod@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-30 12:35:44 -08:00
..
9p
9p: fix build breakage introduced by FS-Cache
2009-12-01 07:35:11 -08:00
adfs
adfs: remove redundant test on unsigned
2009-09-24 07:21:05 -07:00
affs
…
afs
afs: remove manual O_SYNC handling
2009-12-10 15:02:50 +01:00
autofs
trivial: remove unnecessary semicolons
2009-09-21 15:14:58 +02:00
autofs4
autofs4: always use lookup for lookup
2009-12-16 07:19:58 -08:00
befs
fs: Make unload_nls() NULL pointer safe
2009-09-24 07:47:42 -04:00
bfs
…
btrfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
2009-12-17 16:01:03 -08:00
cachefiles
Untangling ima mess, part 2: deal with counters
2009-12-16 12:16:47 -05:00
cifs
Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux
2009-12-16 10:43:34 -08:00
coda
sysctl: Drop & in front of every proc_handler.
2009-11-18 08:37:40 -08:00
configfs
writeback: add name to backing_dev_info
2009-09-11 09:20:26 +02:00
cramfs
…
debugfs
debugfs: fix create mutex racy fops and private data
2009-12-11 11:24:53 -08:00
devpts
devpts_get_tty() should validate inode
2009-12-11 15:18:05 -08:00
dlm
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm
2009-12-10 09:33:59 -08:00
ecryptfs
fsstack/ecryptfs: remove unused get_nlinks param to fsstack_copy_attr_all
2009-12-17 10:57:30 -05:00
efs
…
exofs
exofs: Multi-device mirror support
2009-12-10 09:59:23 +02:00
exportfs
nfs: new subdir Documentation/filesystems/nfs
2009-10-27 19:34:04 -04:00
ext2
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2009-12-16 12:04:02 -08:00
ext3
ext3: Replace lock/unlock_super() with an explicit lock for resizing
2009-12-23 13:44:12 +01:00
ext4
ext4: fix sleep inside spinlock issue with quota and dealloc (#14739)
2009-12-23 13:44:12 +01:00
fat
Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6
2009-12-16 10:29:26 -08:00
freevxfs
…
fscache
FS-Cache: Avoid maybe-used-uninitialised warning on variable
2009-12-16 07:20:13 -08:00
fuse
fuse: reject O_DIRECT flag also in fuse_create
2009-11-27 16:37:13 +01:00
gfs2
Revert "task_struct: make journal_info conditional"
2009-12-17 13:23:24 -08:00
hfs
hfs: fix a potential buffer overflow
2009-12-15 08:53:10 -08:00
hfsplus
hfsplus: refuse to mount volumes larger than 2TB
2009-10-29 07:39:27 -07:00
hostfs
…
hpfs
hpfs: use bitmap_weight()
2009-12-16 07:20:06 -08:00
hppfs
…
hugetlbfs
Untangling ima mess, part 1: alloc_file()
2009-12-16 12:16:47 -05:00
isofs
Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux
2009-12-16 10:43:34 -08:00
jbd
jbd: jbd-debug and jbd2-debug should be writable
2009-12-23 13:44:13 +01:00
jbd2
jbd: jbd-debug and jbd2-debug should be writable
2009-12-23 13:44:13 +01:00
jffs2
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
2009-12-16 12:04:02 -08:00
jfs
jfs: Fix 32bit build warning
2009-12-22 12:27:35 -05:00
lockd
Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linux
2009-12-16 10:43:34 -08:00
minix
V3 minixfs: add missing directory type checking
2009-09-23 07:39:57 -07:00
ncpfs
tree-wide: fix assorted typos all over the place
2009-12-04 15:39:55 +01:00
nfs
Revert "fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)"
2009-12-17 12:51:05 -08:00
nfs_common
…
nfsd
nfsd: fix "insecure" export option
2009-12-20 20:19:51 -08:00
nilfs2
Revert "task_struct: make journal_info conditional"
2009-12-17 13:23:24 -08:00
nls
Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6
2009-09-30 09:31:14 -07:00
notify
switch alloc_file() to passing struct path
2009-12-16 12:16:42 -05:00
ntfs
kill I_LOCK
2009-12-17 11:03:25 -05:00
ocfs2
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
2009-12-24 12:59:11 -08:00
omfs
tree-wide: fix assorted typos all over the place
2009-12-04 15:39:55 +01:00
openpromfs
…
partitions
partitions: read whole sector with EFI GPT header
2009-11-23 09:29:58 +01:00
proc
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-12-19 09:47:49 -08:00
qnx4
qnx4: use hweight8
2009-12-16 07:20:18 -08:00
quota
quota: Improve checking of quota file header
2009-12-23 13:44:13 +01:00
ramfs
nommu: ramfs: remove unused local var
2009-12-17 15:45:31 -08:00
reiserfs
reiserfs: truncate blocks not used by a write
2009-12-17 15:45:30 -08:00
romfs
ROMFS: fix length used with romfs_dev_strnlen() function
2009-10-11 11:33:56 -07:00
smbfs
fs: Make unload_nls() NULL pointer safe
2009-09-24 07:47:42 -04:00
squashfs
const: mark remaining super_operations const
2009-09-22 07:17:24 -07:00
sysfs
Driver core: bin_attribute parameters can often be const*
2009-12-23 11:23:43 -08:00
sysv
…
ubifs
kill I_LOCK
2009-12-17 11:03:25 -05:00
udf
udf: Avoid IO in udf_clear_inode
2009-12-14 21:40:04 +01:00
ufs
ufs: NFS support
2009-12-16 07:20:06 -08:00
xfs
kill I_LOCK
2009-12-17 11:03:25 -05:00
aio.c
aio: remove unused field
2009-12-16 07:20:13 -08:00
anon_inodes.c
Sanitize f_flags helpers
2009-12-22 12:27:34 -05:00
attr.c
truncate: new helpers
2009-09-24 08:41:47 -04:00
bad_inode.c
…
binfmt_aout.c
mm: introduce coredump parameter structure
2009-12-17 15:45:31 -08:00
binfmt_elf_fdpic.c
mm: introduce coredump parameter structure
2009-12-17 15:45:31 -08:00
binfmt_elf.c
mm: introduce coredump parameter structure
2009-12-17 15:45:31 -08:00
binfmt_em86.c
…
binfmt_flat.c
mm: introduce coredump parameter structure
2009-12-17 15:45:31 -08:00
binfmt_misc.c
…
binfmt_script.c
…
binfmt_som.c
mm: introduce coredump parameter structure
2009-12-17 15:45:31 -08:00
bio-integrity.c
…
bio.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2009-12-09 19:43:33 -08:00
block_dev.c
Merge branch 'for-linus' into for-2.6.33
2009-11-03 21:14:39 +01:00
buffer.c
Merge branch 'writeback' of git://git.kernel.dk/linux-2.6-block
2009-09-25 09:27:30 -07:00
char_dev.c
fs/char_dev.c: remove useless loop
2009-09-24 07:21:03 -07:00
compat_binfmt_elf.c
…
compat_ioctl.c
fs/compat_ioctl.c: fix build error when !BLOCK
2009-12-22 12:27:33 -05:00
compat.c
compat.c: Remove dependence on nfsd private headers
2009-12-14 18:12:10 -05:00
dcache.c
libfs: move EXPORT_SYMBOL for d_alloc_name
2009-12-16 12:16:48 -05:00
dcookies.c
…
direct-io.c
dio: fix use-after-free
2009-12-17 04:52:13 -05:00
drop_caches.c
sysctl: remove "struct file *" argument of ->proc_handler
2009-09-24 07:21:04 -07:00
eventfd.c
anonfd: Allow making anon files read-only
2009-12-22 12:27:34 -05:00
eventpoll.c
anonfd: Allow making anon files read-only
2009-12-22 12:27:34 -05:00
exec.c
mm: introduce coredump parameter structure
2009-12-17 15:45:31 -08:00
fcntl.c
fcntl: rename F_OWNER_GID to F_OWNER_PGRP
2009-11-17 17:40:33 -08:00
fifo.c
…
file_table.c
alloc_file(): simplify handling of mnt_clone_write() errors
2009-12-22 12:27:33 -05:00
file.c
headers: remove sched.h from interrupt.h
2009-10-11 11:20:58 -07:00
filesystems.c
…
fs_struct.c
…
fs-writeback.c
writeback: remove unused nonblocking and congestion checks
2009-12-03 13:54:25 +01:00
generic_acl.c
make generic_acl slightly more generic
2009-12-16 12:16:49 -05:00
inode.c
kill I_LOCK
2009-12-17 11:03:25 -05:00
internal.h
Fix f_flags/f_mode in case of lookup_instantiate_filp() from open(pathname, 3)
2009-12-22 12:27:34 -05:00
ioctl.c
__generic_block_fiemap(): fix for files bigger than 4GB
2009-11-12 07:26:01 -08:00
ioprio.c
…
Kconfig
Revert "task_struct: make journal_info conditional"
2009-12-17 13:23:24 -08:00
Kconfig.binfmt
…
libfs.c
libfs: move EXPORT_SYMBOL for d_alloc_name
2009-12-16 12:16:48 -05:00
locks.c
const: make lock_manager_operations const
2009-09-22 07:17:25 -07:00
Makefile
…
mbcache.c
…
mpage.c
…
namei.c
generic_permission: MAY_OPEN is not write access
2009-12-30 12:35:44 -08:00
namespace.c
Revert "fix mismerge with Trond's stuff (create_mnt_ns() export is gone now)"
2009-12-17 12:51:05 -08:00
nfsctl.c
vfs: nfsctl.c un-used nfsd #includes
2009-12-14 18:12:11 -05:00
no-block.c
…
open.c
Sanitize f_flags helpers
2009-12-22 12:27:34 -05:00
pipe.c
fs: no games with DCACHE_UNHASHED
2009-12-17 10:51:40 -05:00
pnode.c
…
pnode.h
…
posix_acl.c
…
read_write.c
sendfile(): check f_op.splice_write() rather than f_op.sendpage()
2009-11-04 09:09:52 +01:00
read_write.h
…
readdir.c
…
select.c
headers: remove sched.h from poll.h
2009-10-04 15:05:10 -07:00
seq_file.c
vfs: seq_file: add helpers for data filling
2009-09-24 07:47:35 -04:00
signalfd.c
anonfd: Allow making anon files read-only
2009-12-22 12:27:34 -05:00
splice.c
sendfile(): check f_op.splice_write() rather than f_op.sendpage()
2009-11-04 09:09:52 +01:00
stack.c
VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size
2009-12-17 10:58:17 -05:00
stat.c
Add unlocked version of inode_add_bytes() function
2009-12-23 13:33:54 +01:00
super.c
vfs: get_sb_single() - do not pass options twice
2009-12-23 11:23:43 -08:00
sync.c
fold do_sync_file_range into sys_sync_file_range
2009-12-17 11:03:25 -05:00
timerfd.c
anonfd: Allow making anon files read-only
2009-12-22 12:27:34 -05:00
utimes.c
…
xattr_acl.c
VFS: Use GFP_NOFS in posix_acl_from_xattr()
2009-12-03 11:48:07 +00:00
xattr.c
sanitize xattr handler prototypes
2009-12-16 12:16:49 -05:00