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linux-next/fs
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Oleg Nesterov b95c35e76b oom: fix the unsafe usage of badness() in proc_oom_score() 
proc_oom_score(task) has a reference to task_struct, but that is all.
If this task was already released before we take tasklist_lock

	- we can't use task->group_leader, it points to nowhere

	- it is not safe to call badness() even if this task is
	  ->group_leader, has_intersects_mems_allowed() assumes
	  it is safe to iterate over ->thread_group list.

	- even worse, badness() can hit ->signal == NULL

Add the pid_alive() check to ensure __unhash_process() was not called.

Also, use "task" instead of task->group_leader. badness() should return
the same result for any sub-thread. Currently this is not true, but
this should be changed anyway.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-04-01 08:50:21 -07:00
..
9p
9p: Skip check for mandatory locks when unlocking
2010-03-13 09:05:37 -06:00
adfs
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
affs
Merge branch 'for-next' into for-linus
2010-03-08 16:55:37 +01:00
afs
AFS: Potential null dereference
2010-03-22 09:57:19 -07:00
autofs
trivial: remove unnecessary semicolons
2009-09-21 15:14:58 +02:00
autofs4
Use kill_litter_super() in autofs4 ->kill_sb()
2010-03-03 14:07:54 -05:00
befs
befs: fix leak
2010-02-07 03:06:21 -05:00
bfs
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
btrfs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
2010-03-18 16:50:55 -07:00
cachefiles
CacheFiles: Fix a race in cachefiles_delete_object() vs rename
2010-02-20 10:06:35 -05:00
ceph
ceph: fix use after free on mds __unregister_request
2010-03-28 21:23:56 -07:00
cifs
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
2010-03-19 09:36:18 -07:00
coda
sysctl: Drop & in front of every proc_handler.
2009-11-18 08:37:40 -08:00
configfs
Fix configfs leak
2010-01-14 09:05:42 -05:00
cramfs
…
debugfs
Lose the new_name argument of fsnotify_move()
2010-02-08 14:38:36 -05:00
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/jikos/trivial
2010-03-12 16:04:50 -08:00
ecryptfs
ecryptfs: use after free
2010-01-19 22:36:06 -06:00
efs
get rid of BKL in fs/efs
2009-06-17 00:36:36 -04:00
exofs
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
exportfs
nfs: new subdir Documentation/filesystems/nfs
2009-10-27 19:34:04 -04:00
ext2
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
2010-03-05 13:20:53 -08:00
ext3
ext3: fix broken handling of EXT3_STATE_NEW
2010-03-29 14:30:19 -07:00
ext4
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2010-03-25 14:10:53 -07:00
fat
fat: fix buffer overflow in vfat_create_shortname()
2010-03-31 10:34:11 -07:00
freevxfs
headers: smp_lock.h redux
2009-07-12 12:22:34 -07:00
fscache
SLOW_WORK: CONFIG_SLOW_WORK_PROC should be CONFIG_SLOW_WORK_DEBUG
2010-03-29 09:14:47 -07:00
fuse
Merge branch 'for-next' into for-linus
2010-03-08 16:55:37 +01:00
gfs2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
2010-03-13 14:38:53 -08:00
hfs
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
hfsplus
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
hostfs
hostfs: set maximum filesize in superblock for proper LFS support
2009-06-30 18:56:03 -07:00
hpfs
Don't mess with generic_permission() under ->d_lock in hpfs
2010-03-03 14:07:58 -05:00
hppfs
hppfs can use existing proc_mnt, no need for do_kern_mount() in there
2010-03-03 14:08:00 -05:00
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
Merge branch 'for-next' into for-linus
2010-03-08 16:55:37 +01:00
jbd2
jbd2: clean up an assertion in jbd2_journal_commit_transaction()
2010-02-24 12:11:20 -05:00
jffs2
jffs2: fix up rb_root initializations to use RB_ROOT
2010-03-17 18:43:47 -07:00
jfs
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
2010-03-05 13:20:53 -08:00
lockd
lockd: don't clear sm_monitored on nsm_reboot_lookup
2010-02-08 16:20:35 -05:00
logfs
[LogFS] Erase new journal segments
2010-03-29 21:14:52 +02:00
minix
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
ncpfs
tree-wide: fix assorted typos all over the place
2009-12-04 15:39:55 +01:00
nfs
NFS: don't try to decode GETATTR if DELEGRETURN returned error
2010-03-22 05:34:13 -04:00
nfs_common
…
nfsd
Merge branch 'for-next' into for-linus
2010-03-08 16:55:37 +01:00
nilfs2
nilfs2: fix imperfect completion wait in nilfs_wait_on_logs
2010-03-24 01:17:20 +09:00
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 inotify_user to anon_inode
2010-02-19 03:35:12 -05:00
ntfs
ntfs: use bitmap_weight
2010-03-17 18:43:47 -07:00
ocfs2
ocfs2: Fix a race in o2dlm lockres mastery
2010-03-23 18:22:59 -07:00
omfs
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
openpromfs
…
partitions
fs/partition/msdos: fix unusable extended partition for > 512B sector
2010-03-24 16:31:22 -07:00
proc
oom: fix the unsafe usage of badness() in proc_oom_score()
2010-04-01 08:50:21 -07:00
qnx4
fs/qnx4: decrement sizeof size in strncmp
2010-02-04 11:55:46 +01:00
quota
quota: stop using QUOTA_OK / NO_QUOTA
2010-03-05 00:20:31 +01:00
ramfs
nommu: fix shared mmap after truncate shrinkage problems
2010-01-16 12:15:40 -08:00
reiserfs
reiserfs: properly honor read-only devices
2010-03-24 16:31:21 -07:00
romfs
fix leak in romfs_fill_super()
2010-01-26 22:22:26 -05:00
smbfs
fs: Make unload_nls() NULL pointer safe
2009-09-24 07:47:42 -04:00
squashfs
Squashfs: get rid of obsolete definition in header file
2010-03-05 15:35:35 +00:00
sysfs
sysfs: Kill unused sysfs_sb variable.
2010-03-07 17:04:52 -08:00
sysv
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
ubifs
Revert "lib: build list_sort() only if needed"
2010-03-07 09:54:44 -08:00
udf
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6
2010-03-12 16:22:50 -08:00
ufs
ufs: make solaris fsck happy
2010-03-12 15:52:35 -08:00
xfs
xfs: don't warn about page discards on shutdown
2010-03-16 15:40:53 -05:00
aio.c
aio: remove unused field
2009-12-16 07:20:13 -08:00
anon_inodes.c
anon_inodes: mark the anon inode private
2010-03-12 16:25:23 -08:00
attr.c
fs: use rlimit helpers
2010-03-06 11:26:29 -08:00
bad_inode.c
…
binfmt_aout.c
fs/binfmt_aout.c: fix pointer warnings
2010-03-24 16:31:19 -07:00
binfmt_elf_fdpic.c
FDPIC: For-loop in elf_core_vma_data_size() is incorrect
2010-03-24 16:43:29 -07:00
binfmt_elf.c
coredump: pass mm->flags as a coredump parameter for consistency
2010-03-06 11:26:46 -08:00
binfmt_em86.c
…
binfmt_flat.c
fs: use rlimit helpers
2010-03-06 11:26:29 -08:00
binfmt_misc.c
…
binfmt_script.c
…
binfmt_som.c
Split 'flush_old_exec' into two functions
2010-01-29 08:22:01 -08:00
bio-integrity.c
block: fix bugs in bio-integrity mempool usage
2010-01-30 20:28:19 +01:00
bio.c
Merge branch 'for-next' into for-linus
2010-03-08 16:55:37 +01:00
block_dev.c
freeze_bdev: don't deactivate successfully frozen MS_RDONLY sb
2010-02-07 03:06:21 -05:00
buffer.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2010-03-12 16:04:50 -08:00
char_dev.c
fs/char_dev.c: remove useless loop
2009-09-24 07:21:03 -07:00
compat_binfmt_elf.c
elf coredump: replace ELF_CORE_EXTRA_* macros by functions
2010-03-06 11:26:45 -08:00
compat_ioctl.c
fs/compat_ioctl.c: suppress two warnings
2010-03-06 11:26:35 -08:00
compat.c
Add generic sys_old_select()
2010-03-12 15:52:32 -08:00
dcache.c
fix race in d_splice_alias()
2010-03-03 14:13:08 -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
eventfd - allow atomic read and waitqueue remove
2010-01-25 12:26:38 -02:00
eventpoll.c
anonfd: Allow making anon files read-only
2009-12-22 12:27:34 -05:00
exec.c
coredump: suppress uid comparison test if core output files are pipes
2010-03-06 11:26:46 -08:00
fcntl.c
fs: use rlimit helpers
2010-03-06 11:26:29 -08:00
fifo.c
…
file_table.c
vfs: take f_lock on modifying f_mode after open time
2010-03-06 11:26:25 -08:00
file.c
fs: use rlimit helpers
2010-03-06 11:26:29 -08:00
filesystems.c
fs: Mark get_filesystem_list() as __init function.
2009-04-20 23:02:52 -04:00
fs_struct.c
…
fs-writeback.c
pass writeback_control to ->write_inode
2010-03-05 13:25:52 -05:00
generic_acl.c
make generic_acl slightly more generic
2009-12-16 12:16:49 -05:00
inode.c
dquot: move dquot initialization responsibility into the filesystem
2010-03-05 00:20:30 +01:00
internal.h
Take vfsmount_lock to fs/internal.h
2010-03-03 14:07:59 -05:00
ioctl.c
__generic_block_fiemap(): fix for files bigger than 4GB
2009-11-12 07:26:01 -08:00
ioprio.c
…
Kconfig
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2010-03-19 09:43:06 -07:00
Kconfig.binfmt
…
libfs.c
libfs: Unexport and kill simple_prepare_write
2010-03-03 13:00:17 -05:00
locks.c
Merge branch 'for-next' into for-linus
2010-03-08 16:55:37 +01:00
Makefile
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
2010-03-19 09:43:06 -07:00
mbcache.c
…
mpage.c
Fix misspellings of "invocation" in comments.
2010-02-04 11:55:45 +01:00
namei.c
Restore LOOKUP_DIRECTORY hint handling in final lookup on open()
2010-03-26 12:41:05 -04:00
namespace.c
vfs: add NOFOLLOW flag to umount(2)
2010-03-03 14:08:00 -05:00
nfsctl.c
Switch may_open() and break_lease() to passing O_...
2010-03-03 13:00:21 -05:00
no-block.c
…
open.c
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
2010-03-05 13:20:53 -08:00
pipe.c
fs: no games with DCACHE_UNHASHED
2009-12-17 10:51:40 -05:00
pnode.c
Kill CL_PROPAGATION, sanitize fs/pnode.c:get_source()
2010-03-03 13:00:22 -05:00
pnode.h
VFS: Clean up shared mount flag propagation
2010-03-03 14:07:55 -05:00
posix_acl.c
…
read_write.c
do_sync_read/write() should set kiocb.ki_nbytes to be consistent
2010-03-24 16:43:29 -07:00
read_write.h
…
readdir.c
…
select.c
Add generic sys_old_select()
2010-03-12 15:52:32 -08:00
seq_file.c
seq_file: fix new kernel-doc warnings
2010-03-07 15:48:26 -08:00
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
Mirror MS_KERNMOUNT in ->mnt_flags
2010-03-03 14:08:00 -05:00
sync.c
quota: move code from sync_quota_sb into vfs_quota_sync
2010-03-05 00:20:24 +01:00
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