Thomas Gleixner 3c80fe4ac9 audit: Call tty_audit_push_task() outside preempt disabled ... While auditing all tasklist_lock read_lock sites I stumbled over the following call chain: audit_prepare_user_tty() read_lock(&tasklist_lock); tty_audit_push_task(); mutex_lock(&buf->mutex); --> buf->mutex is locked with preemption disabled. Solve this by acquiring a reference to the task struct under rcu_read_lock and call tty_audit_push_task outside of the preempt disabled region. Move all code which needs to be protected by sighand lock into tty_audit_push_task() and use lock/unlock_sighand as we do not hold tasklist_lock. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Eric Paris <eparis@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2010-10-30 08:45:25 -04:00
..
agp	parisc-agp: fix missing slab.h include	2010-10-29 13:26:48 -04:00
hw_random
ip2	drivers/char/ip2/Makefile: replace the use of <module>-objs with <module>-y	2010-10-27 18:03:14 -07:00
ipmi	drivers/char/ipmi/Makefile: replace the use of <module>-objs with <module>-y	2010-10-27 18:03:14 -07:00
mwave	drivers/char/mwave/Makefile: clean up	2010-10-27 18:03:15 -07:00
pcmcia	drivers/char/pcmcia/ipwireless/Makefile: Makefile: replace the use of <module>-objs with <module>-y	2010-10-27 18:03:15 -07:00
rio	drivers/char/rio/Makefile: replace the use of <module>-objs with <module>-y	2010-10-27 18:03:15 -07:00
tpm	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-10-24 13:41:39 -07:00
xilinx_hwicap	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
.gitignore
amiserial.c	tty: icount changeover for other main devices	2010-10-22 10:20:05 -07:00
apm-emulation.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-10-24 13:41:39 -07:00
applicom.c	drivers/char/applicom.c: fix information leak to userland	2010-10-27 18:03:14 -07:00
applicom.h
bfin_jtag_comm.c
bfin-otp.c
briq_panel.c
bsr.c
cd1865.h
consolemap.c
cp437.uni
cs5535_gpio.c
cyclades.c	tty: icount changeover for other main devices	2010-10-22 10:20:05 -07:00
defkeymap.c_shipped
defkeymap.map
digi1.h
digiFep1.h
digiPCI.h
ds1302.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
ds1620.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
dsp56k.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
dtlk.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
efirtc.c
epca.c
epca.h
epcaconfig.h
generic_nvram.c
generic_serial.c
genrtc.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
hangcheck-timer.c
hpet.c	drivers/char/hpet.c: fix information leak to userland	2010-10-26 16:52:11 -07:00
hvc_beat.c
hvc_console.c	drivers/char/hvc_console.c: remove unneeded __set_current_state(TASK_RUNNING)	2010-10-27 18:03:14 -07:00
hvc_console.h
hvc_irq.c
hvc_iseries.c
hvc_iucv.c	[S390] hvc_iucv: do not call iucv_unregister if iucv_register failed	2010-10-25 16:10:17 +02:00
hvc_rtas.c
hvc_tile.c
hvc_udbg.c
hvc_vio.c
hvc_xen.c	Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen	2010-10-28 17:11:17 -07:00
hvcs.c
hvsi.c
i8k.c
isicom.c
istallion.c
Kconfig	add ttyprintk driver	2010-10-22 10:20:02 -07:00
keyboard.c
lp.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
Makefile	add ttyprintk driver	2010-10-22 10:20:02 -07:00
mbcs.c
mbcs.h
mem.c	vfs: introduce FMODE_UNSIGNED_OFFSET for allowing negative f_pos	2010-10-25 21:18:21 -04:00
misc.c
mmtimer.c	SGI Altix IA64 mmtimer: eliminate long interval timer holdoffs	2010-10-27 18:03:14 -07:00
moxa.c
moxa.h
mspec.c
mxser.c	drivers/char/mxser.c: fix compilation warning in mxser.c	2010-10-27 18:03:15 -07:00
mxser.h
n_gsm.c
n_hdlc.c
n_r3964.c
n_tty.c
nozomi.c	tty: icount changeover for other main devices	2010-10-22 10:20:05 -07:00
nsc_gpio.c
nvram.c
nwbutton.c
nwbutton.h
nwflash.c
pc8736x_gpio.c
ppdev.c	drivers/char/ppdev.c: fix information leak to userland	2010-10-27 18:03:14 -07:00
ps3flash.c
pty.c	tty: Remove __GFP_NOFAIL from tty_add_file()	2010-10-22 10:19:58 -07:00
ramoops.c	ramoops: use the platform data structure instead of module params	2010-10-27 18:03:18 -07:00
random.c
raw.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
riscom8_reg.h
riscom8.c
riscom8.h
rocket_int.h
rocket.c	drivers/char/rocket.c: release_region or error path	2010-10-27 18:03:14 -07:00
rocket.h
rtc.c
scc.h
scx200_gpio.c
selection.c
ser_a2232.c
ser_a2232.h
ser_a2232fw.ax
ser_a2232fw.h
serial167.c
snsc_event.c
snsc.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
snsc.h
sonypi.c
specialix_io8.h
specialix.c
stallion.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-10-24 13:41:39 -07:00
sx.c
sx.h
sxboards.h
sxwindow.h
synclink_gt.c	drivers/char/synclink_gt.c: add extended sync feature	2010-10-27 18:03:14 -07:00
synclink.c	tty: icount changeover for other main devices	2010-10-22 10:20:05 -07:00
synclinkmp.c	tty: icount changeover for other main devices	2010-10-22 10:20:05 -07:00
sysrq.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2010-10-25 07:59:01 -07:00
tb0219.c
tlclk.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
toshiba.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
tty_audit.c	audit: Call tty_audit_push_task() outside preempt disabled	2010-10-30 08:45:25 -04:00
tty_buffer.c
tty_io.c	tty: Make tiocgicount a handler	2010-10-22 10:20:04 -07:00
tty_ioctl.c
tty_ldisc.c
tty_mutex.c
tty_port.c
ttyprintk.c	add ttyprintk driver	2010-10-22 10:20:02 -07:00
uv_mmtimer.c
vc_screen.c	vcs: invoke the vt update callback when /dev/vcs* is written to	2010-10-22 10:20:06 -07:00
viotape.c	Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl	2010-10-22 10:52:56 -07:00
virtio_console.c	virtio: console: Disable lseek(2) for port file operations	2010-10-21 17:44:04 +10:30
vme_scc.c
vt_ioctl.c	drivers/char/vt_ioctl.c: fix VT_OPENQRY error value	2010-10-27 18:03:05 -07:00
vt.c	vcs: invoke the vt update callback when /dev/vcs* is written to	2010-10-22 10:20:06 -07:00