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8eeee4e2f04fc551f50c9d9847da2d73d7d33728
linux/fs
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Oleg Nesterov 8eeee4e2f0 send_sigio_to_task: sanitize the usage of fown->signum 
send_sigio_to_task() reads fown->signum several times, we can race with
F_SETSIG which changes ->signum lockless.  In theory, this can fool
security checks or we can call group_send_sig_info() with the wrong
->si_signo which does not match "int sig".

Change the code to cache ->signum.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-16 15:36:17 -07:00
..
9p
Fix a leak in failure exit in 9p ->get_sb()
2009-05-09 10:49:40 -04:00
adfs
Fix adfs GET_FRAG_ID() on big-endian
2009-06-11 21:36:14 -04:00
affs
affs: add ->sync_fs
2009-06-11 21:36:14 -04:00
afs
push BKL down into ->put_super
2009-06-11 21:36:07 -04:00
autofs
switch follow_down()
2009-06-11 21:36:01 -04:00
autofs4
switch follow_down()
2009-06-11 21:36:01 -04:00
befs
NLS: update handling of Unicode
2009-06-15 21:44:43 -07:00
bfs
bfs: add ->sync_fs
2009-06-11 21:36:14 -04:00
btrfs
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
2009-06-16 11:46:45 -07:00
cachefiles
enforce ->sync_fs is only called for rw superblock
2009-06-11 21:36:06 -04:00
cifs
push BKL down into ->put_super
2009-06-11 21:36:07 -04:00
coda
splice: implement default splice_read method
2009-05-11 14:13:10 +02:00
configfs
configfs: Rework configfs_depend_item() locking and make lockdep happy
2009-04-30 10:48:26 -07:00
cramfs
fs/cramfs: return f_fsid for statfs(2)
2009-04-02 19:05:08 -07:00
debugfs
debugfs: use specified mode to possibly mark files read/write only
2009-06-15 21:30:28 -07:00
devpts
devpts: unregister the file system on error
2009-06-11 08:51:06 -07:00
dlm
dlm: use more NOFS allocation
2009-05-15 11:24:59 -05:00
ecryptfs
push BKL down into ->put_super
2009-06-11 21:36:07 -04:00
efs
fs/efs: return f_fsid for statfs(2)
2009-04-02 19:05:09 -07:00
exofs
[SCSI] Merge branch 'linus'
2009-06-12 10:02:03 -05:00
exportfs
…
ext2
trivial: ext2: fix a typo in comment in ext2.h
2009-06-12 18:01:44 +02:00
ext3
Push BKL down into ->remount_fs()
2009-06-11 21:36:11 -04:00
ext4
Push BKL down into ->remount_fs()
2009-06-11 21:36:11 -04:00
fat
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
2009-06-16 13:06:10 -07:00
freevxfs
push BKL down into ->put_super
2009-06-11 21:36:07 -04:00
fscache
FS-Cache: Fixup renamed filenames in comments in internal.h
2009-05-27 10:20:13 -07:00
fuse
Merge branch 'cuse' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
2009-06-12 09:31:20 -07:00
gfs2
GFS2: Remove lock_kernel from gfs2_put_super()
2009-06-12 13:40:47 +01:00
hfs
hfs: add ->sync_fs
2009-06-11 21:36:15 -04:00
hfsplus
hfsplus: add ->sync_fs
2009-06-11 21:36:16 -04:00
hostfs
constify dentry_operations: misc filesystems
2009-03-27 14:44:00 -04:00
hpfs
Push BKL down into ->remount_fs()
2009-06-11 21:36:11 -04:00
hppfs
hppfs: hppfs_read_file() may return -ERROR
2009-04-02 19:04:53 -07:00
hugetlbfs
Merge branch 'master' into next
2009-05-22 18:40:59 +10:00
isofs
NLS: update handling of Unicode
2009-06-15 21:44:43 -07:00
jbd
jbd: fix race in buffer processing in commit code
2009-06-09 16:59:03 -07:00
jbd2
jbd2: Fix minor typos in comments in fs/jbd2/journal.c
2009-06-09 00:06:20 -04:00
jffs2
jffs2: call jffs2_write_super from jffs2_sync_fs
2009-06-11 21:36:16 -04:00
jfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6
2009-06-16 12:23:52 -07:00
lockd
lockd: fix list corruption on lockd restart
2009-05-06 17:19:36 -04:00
minix
switch minix to simple_fsync()
2009-06-11 21:36:12 -04:00
ncpfs
NLS: update handling of Unicode
2009-06-15 21:44:43 -07:00
nfs
Push BKL down into ->remount_fs()
2009-06-11 21:36:11 -04:00
nfs_common
…
nfsd
switch follow_down()
2009-06-11 21:36:01 -04:00
nilfs2
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
2009-06-15 09:13:49 -07:00
nls
NLS: update handling of Unicode
2009-06-15 21:44:43 -07:00
notify
fsnotify: allow groups to set freeing_mark to null
2009-06-11 14:57:55 -04:00
ntfs
Push BKL down into ->remount_fs()
2009-06-11 21:36:11 -04:00
ocfs2
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
2009-06-16 12:11:57 -07:00
omfs
switch omfs to simple_fsync()
2009-06-11 21:36:13 -04:00
openpromfs
…
partitions
Merge branch 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
2009-06-12 09:29:42 -07:00
proc
Move junk from proc_fs.h to fs/proc/internal.h
2009-06-11 21:36:01 -04:00
qnx4
fs/qnx4: sanitize includes
2009-06-11 21:36:12 -04:00
quota
quota: cleanup dquota sync functions (version 4)
2009-06-11 21:36:04 -04:00
ramfs
ramfs: ignore unknown mount options
2009-06-14 17:58:25 -07:00
reiserfs
Push BKL down into ->remount_fs()
2009-06-11 21:36:11 -04:00
romfs
ROMFS: romfs_dev_read() error ignored
2009-05-09 10:49:41 -04:00
smbfs
push BKL down into ->put_super
2009-06-11 21:36:07 -04:00
squashfs
push BKL down into ->put_super
2009-06-11 21:36:07 -04:00
sysfs
Sysfs: fix possible memleak in sysfs_follow_link
2009-06-15 21:30:23 -07:00
sysv
sysv: add ->sync_fs
2009-06-11 21:36:16 -04:00
ubifs
ubifs: register backing_dev_info
2009-06-16 08:21:04 +02:00
udf
switch udf to simple_fsync()
2009-06-11 21:36:13 -04:00
ufs
ufs: add ->sync_fs
2009-06-11 21:36:16 -04:00
xfs
Merge branch 'master' of git://oss.sgi.com/xfs/xfs into for-linus
2009-06-12 21:28:59 -05:00
aio.c
aio: lookup_ioctx can return the wrong value when looking up a bogus context
2009-03-19 15:57:18 -07:00
anon_inodes.c
constify dentry_operations: rest
2009-03-27 14:44:03 -04:00
attr.c
vfs: Use lowercase names of quota functions
2009-03-26 02:18:35 +01:00
bad_inode.c
…
binfmt_aout.c
…
binfmt_elf_fdpic.c
ptrace: s/parent/real_parent/ in binfmt_elf_fdpic.c
2009-05-02 15:36:10 -07:00
binfmt_elf.c
Trim includes in binfmt_elf
2009-03-31 23:00:27 -04:00
binfmt_em86.c
…
binfmt_flat.c
flat: fix data sections alignment
2009-05-29 08:40:02 -07:00
binfmt_misc.c
…
binfmt_script.c
…
binfmt_som.c
Don't crap into descriptor table in binfmt_som
2009-03-31 23:00:28 -04:00
bio-integrity.c
block: add private bio_set for bio integrity allocations
2009-03-24 12:35:17 +01:00
bio.c
block: remove some includings of blktrace_api.h
2009-06-16 11:19:36 +02:00
block_dev.c
vfs: Rename fsync_super() to sync_filesystem() (version 4)
2009-06-11 21:36:04 -04:00
buffer.c
Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block
2009-06-11 11:10:35 -07:00
char_dev.c
fs: Remove i_cindex from struct inode
2009-06-11 21:36:09 -04:00
compat_binfmt_elf.c
…
compat_ioctl.c
trivial: fix typo compatiable/compatiability has extra 'a'.
2009-06-12 18:01:46 +02:00
compat.c
trivial: fix comment typo in fs/compat.c
2009-06-12 18:01:44 +02:00
dcache.c
dcache: extrace and use d_unlinked()
2009-06-11 21:36:06 -04:00
dcookies.c
…
direct-io.c
block: Do away with the notion of hardsect_size
2009-05-22 23:22:54 +02:00
drop_caches.c
vfs: skip I_CLEAR state inodes
2009-04-02 19:04:48 -07:00
eventfd.c
eventfd: export eventfd_signal and eventfd_fget for lguest
2009-06-12 22:27:09 +09:30
eventpoll.c
epoll: fix size check in epoll_create()
2009-05-12 14:11:35 -07:00
exec.c
Merge branch 'perfcounters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-06-11 14:01:07 -07:00
fcntl.c
send_sigio_to_task: sanitize the usage of fown->signum
2009-06-16 15:36:17 -07:00
fifo.c
…
file_table.c
fs: move mark_files_ro into file_table.c
2009-06-11 21:36:02 -04:00
file.c
…
filesystems.c
fs: Mark get_filesystem_list() as __init function.
2009-04-20 23:02:52 -04:00
fs_struct.c
Get rid of indirect include of fs_struct.h
2009-03-31 23:00:27 -04:00
fs-writeback.c
fs: block_dump missing dentry locking
2009-06-11 21:36:10 -04:00
generic_acl.c
New helper - current_umask()
2009-03-31 23:00:26 -04:00
inode.c
trivial: fs/inode: Fix typo in file_update_time nanodoc
2009-06-12 18:01:45 +02:00
internal.h
Trim a bit of crap from fs.h
2009-06-11 21:36:07 -04:00
ioctl.c
fiemap: fix problem with setting FIEMAP_EXTENT_LAST
2009-05-06 16:36:09 -07:00
ioprio.c
…
Kconfig
CUSE: implement CUSE - Character device in Userspace
2009-06-09 11:24:11 +02:00
Kconfig.binfmt
…
libfs.c
New helper - simple_fsync()
2009-06-11 21:36:11 -04:00
locks.c
…
Makefile
nilfs2: update makefile and Kconfig
2009-04-07 08:31:16 -07:00
mbcache.c
…
mpage.c
ext4: Properly initialize the buffer_head state
2009-05-13 15:13:42 -04:00
namei.c
switch lookup_mnt()
2009-06-11 21:36:01 -04:00
namespace.c
Push BKL down into do_remount_sb()
2009-06-11 21:36:08 -04:00
nfsctl.c
…
no-block.c
…
open.c
fs: introduce mnt_clone_write
2009-06-11 21:36:02 -04:00
pipe.c
splice: implement default splice_read method
2009-05-11 14:13:10 +02:00
pnode.c
…
pnode.h
…
posix_acl.c
…
read_write.c
splice: implement default splice_read method
2009-05-11 14:13:10 +02:00
read_write.h
…
readdir.c
…
select.c
…
seq_file.c
cpumask: fix seq_bitmap_*() functions.
2009-03-30 22:05:11 +10:30
signalfd.c
…
splice.c
splice: fix kmaps in default_file_splice_write()
2009-05-19 11:37:46 +02:00
stack.c
…
stat.c
kill vfs_stat_fd / vfs_lstat_fd
2009-04-20 23:02:52 -04:00
super.c
Push BKL down into ->remount_fs()
2009-06-11 21:36:11 -04:00
sync.c
remove the call to ->write_super in __sync_filesystem
2009-06-11 21:36:17 -04:00
timerfd.c
…
utimes.c
…
xattr_acl.c
…
xattr.c
fs: introduce mnt_clone_write
2009-06-11 21:36:02 -04:00