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linux-next/fs
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Oleg Nesterov 329f7dba5f [PATCH] fix de_thread() vs send_group_sigqueue() race 
When non-leader thread does exec, de_thread calls release_task(leader) before
calling exit_itimers(). If local timer interrupt happens in between, it can
oops in send_group_sigqueue() while taking ->sighand->siglock == NULL.

However, we can't change send_group_sigqueue() to check p->signal != NULL,
because sys_timer_create() does get_task_struct() only in SIGEV_THREAD_ID
case. So it is possible that this task_struct was already freed and we can't
trust p->signal.

This patch changes de_thread() so that leader released after exit_itimers()
call.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-08 12:58:38 -08:00
..
9p
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
adfs
[ARM] fs/adfs/adfs.h: "extern inline" doesn't make sense
2005-08-20 17:20:28 +01:00
affs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
afs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
autofs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
autofs4
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
befs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
bfs
[PATCH] bfs iget() abuses
2005-10-04 13:22:01 -07:00
cifs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
coda
[PATCH] Driver Core: fix up all callers of class_device_create()
2005-10-28 09:52:52 -07:00
cramfs
[PATCH] fs/cramfs/uncompress.c should #include <linux/cramfs_fs.h>
2005-09-10 10:06:35 -07:00
debugfs
[PATCH] remove duplicate get_dentry functions in various places
2005-06-23 09:45:20 -07:00
devfs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
devpts
[PATCH] Generic VFS fallback for security xattrs
2005-09-05 00:05:52 -07:00
efs
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
exportfs
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ext2
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
ext3
[PATCH] Test for sb_getblk return value
2005-10-30 17:37:26 -08:00
fat
[PATCH] fat: Remove duplicate directory scanning code
2005-10-30 17:37:32 -08:00
freevxfs
[PATCH] vxfs: use generic_ro_fops
2005-11-07 07:53:41 -08:00
fuse
[PATCH] FUSE: pass file handle in setattr
2005-11-07 07:53:42 -08:00
hfs
[PATCH] gfp_t: fs/*
2005-10-28 08:16:47 -07:00
hfsplus
[PATCH] gfp_t: fs/*
2005-10-28 08:16:47 -07:00
hostfs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
hpfs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
hppfs
[PATCH] hppfs: fix symlink error path
2005-08-26 11:39:19 -07:00
hugetlbfs
[PATCH] hugetlb: overcommit accounting check
2005-10-29 21:40:43 -07:00
isofs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
jbd
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
jffs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
jffs2
Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6
2005-11-07 10:24:08 -08:00
jfs
[PATCH] mm: split page table lock
2005-10-29 21:40:42 -07:00
lockd
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
minix
[PATCH] update filesystems for new delete_inode behavior
2005-09-09 13:57:27 -07:00
msdos
[PATCH] fat: remove the unneeded vfat_find() in vfat_rename()
2005-10-30 17:37:32 -08:00
ncpfs
[PATCH] update filesystems for new delete_inode behavior
2005-09-09 13:57:27 -07:00
nfs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
nfs_common
[PATCH] nfsacl: Solaris VxFS compatibility fix
2005-10-11 09:46:54 -07:00
nfsd
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
nls
[PATCH] make some things static
2005-05-05 16:36:47 -07:00
ntfs
NTFS: Fix a stupid bug causing writes to non-initialized pages to segfault.
2005-11-01 15:49:31 +00:00
openpromfs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
partitions
[PATCH] s390: cleanup of include/asm-s390/vtoc.h
2005-11-07 07:53:34 -08:00
proc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge
2005-11-07 20:23:46 -08:00
qnx4
[PATCH] update filesystems for new delete_inode behavior
2005-09-09 13:57:27 -07:00
ramfs
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
reiserfs
[PATCH] reiserfs: [kv]free() checking cleanup
2005-10-30 17:37:17 -08:00
relayfs
[PATCH] relayfs: fix bogus param value in call to vmap
2005-10-10 08:39:50 -07:00
romfs
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
smbfs
[PATCH] smbfs: 'names_cache' memory leak
2005-11-07 07:53:39 -08:00
sysfs
[PATCH] Fix oops in sysfs_hash_and_remove_file()
2005-08-26 19:37:13 -07:00
sysv
[PATCH] update filesystems for new delete_inode behavior
2005-09-09 13:57:27 -07:00
udf
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
ufs
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
vfat
[PATCH] fat: remove the unneeded vfat_find() in vfat_rename()
2005-10-30 17:37:32 -08:00
xfs
[PATCH] mm: rename kmem_cache_s to kmem_cache
2005-11-07 07:53:24 -08:00
aio.c
[PATCH] aio: remove aio_max_nr accounting race
2005-11-07 07:53:38 -08:00
attr.c
[PATCH] fs/attr.c: remove BUG()
2005-10-30 17:37:27 -08:00
bad_inode.c
[PATCH] make some things static
2005-05-05 16:36:47 -07:00
binfmt_aout.c
[PATCH] mm: mm_init set_mm_counters
2005-10-29 21:40:38 -07:00
binfmt_elf_fdpic.c
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
binfmt_elf.c
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
binfmt_em86.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
binfmt_flat.c
[PATCH] mm: mm_init set_mm_counters
2005-10-29 21:40:38 -07:00
binfmt_misc.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
binfmt_script.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
binfmt_som.c
[PATCH] mm: mm_init set_mm_counters
2005-10-29 21:40:38 -07:00
bio.c
[PATCH] gfp_t: fs/*
2005-10-28 08:16:47 -07:00
block_dev.c
[PATCH] block: add unlocked_ioctl support for block devices
2005-06-23 09:45:32 -07:00
buffer.c
[PATCH] __find_get_block_slow() cleanup
2005-11-07 07:53:39 -08:00
char_dev.c
[PATCH] cdev: cdev_put oops
2005-07-12 16:01:02 -07:00
compat_ioctl.c
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
compat.c
[PATCH] mm: update_hiwaters just in time
2005-10-29 21:40:39 -07:00
dcache.c
[PATCH] Remove hlist_for_each_rcu() API, convert existing use to hlist_for_each_entry_rcu
2005-11-07 07:53:35 -08:00
dcookies.c
[PATCH] dcookies.c: use proper refcounting functions
2005-07-07 18:23:52 -07:00
direct-io.c
[PATCH] core remove PageReserved
2005-10-29 21:40:39 -07:00
dnotify.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
dquot.c
[PATCH] saner handling of auto_acct_off() and DQUOT_OFF() in umount
2005-11-07 18:18:09 -08:00
eventpoll.c
[PATCH] epoll: handle timeout overflow
2005-09-28 07:46:41 -07:00
exec.c
[PATCH] fix de_thread() vs send_group_sigqueue() race
2005-11-08 12:58:38 -08:00
fcntl.c
[PATCH] files: lock-free fd look-up
2005-09-09 13:57:55 -07:00
fifo.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
file_table.c
[PATCH] mm: rename kmem_cache_s to kmem_cache
2005-11-07 07:53:24 -08:00
file.c
[PATCH] Fix the fdtable freeing in the case of vmalloced fdset/arrays
2005-09-14 12:38:26 -07:00
filesystems.c
[PATCH] fix missing includes
2005-10-30 17:37:32 -08:00
fs-writeback.c
[PATCH] kernel-docs: fix kernel-doc format problems
2005-11-07 07:53:55 -08:00
inode.c
[PATCH] fix nr_unused accounting, and avoid recursing in iput with I_WILL_FREE set
2005-10-30 17:37:26 -08:00
inotify.c
[PATCH] inotify/idr leak fix
2005-10-23 16:38:39 -07:00
ioctl.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ioprio.c
Don't allow normal users to set idle IO priority
2005-08-20 18:51:29 -07:00
Kconfig
Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6
2005-11-07 10:24:08 -08:00
Kconfig.binfmt
[PATCH] CONFIG_IA32
2005-10-30 17:37:10 -08:00
libfs.c
[PATCH] fix fsync(dir) return value for ram-based filesystems
2005-06-25 16:24:38 -07:00
locks.c
Fix Connectathon locking test failure
2005-10-18 14:20:21 -07:00
Makefile
[PATCH] beginning of the shared-subtree proper
2005-11-07 18:18:10 -08:00
mbcache.c
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00
mpage.c
[PATCH] gfp flags annotations - part 1
2005-10-08 15:00:57 -07:00
namei.c
[PATCH] VFS: pass file pointer to filesystem from ftruncate()
2005-11-07 07:53:42 -08:00
namespace.c
[PATCH] unbindable mounts
2005-11-07 18:18:11 -08:00
nfsctl.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
open.c
[PATCH] VFS: pass file pointer to filesystem from ftruncate()
2005-11-07 07:53:42 -08:00
pipe.c
[PATCH] sched: TASK_NONINTERACTIVE
2005-09-10 10:06:22 -07:00
pnode.c
[PATCH] unbindable mounts
2005-11-07 18:18:11 -08:00
pnode.h
[PATCH] unbindable mounts
2005-11-07 18:18:11 -08:00
posix_acl.c
[PATCH] gfp flags annotations - part 1
2005-10-08 15:00:57 -07:00
quota_v1.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
quota_v2.c
[PATCH] quota: possible bug in quota format v2 support
2005-04-16 15:25:47 -07:00
quota.c
[PATCH] quota: small cleanups
2005-11-07 07:53:39 -08:00
read_write.c
[PATCH] readv/writev syscalls are not checked by lsm
2005-09-29 15:42:08 -07:00
readdir.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
select.c
[PATCH] files: lock-free fd look-up
2005-09-09 13:57:55 -07:00
seq_file.c
[PATCH] allow callers of seq_open do allocation themselves
2005-11-07 18:18:09 -08:00
stat.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
super.c
[PATCH] saner handling of auto_acct_off() and DQUOT_OFF() in umount
2005-11-07 18:18:09 -08:00
xattr_acl.c
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
xattr.c
[PATCH] kfree cleanup: fs
2005-11-07 07:54:06 -08:00