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kernel-ark/kernel
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Roland McGrath 7324328446 Return EPERM not ECHILD on security_task_wait failure 
wait* syscalls return -ECHILD even when an individual PID of a live child
was requested explicitly, when security_task_wait denies the operation.
This means that something like a broken SELinux policy can produce an
unexpected failure that looks just like a bug with wait or ptrace or
something.

This patch makes do_wait return -EACCES (or other appropriate error returned
from security_task_wait() instead of -ECHILD if some children were ruled out
solely because security_task_wait failed.

[jmorris@namei.org: switch error code to EACCES]
Signed-off-by: Roland McGrath <roland@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:57 -07:00
..
irq MSI: arch must connect the irq and the msi_desc 2007-05-02 19:02:38 -07:00
power Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
time [PATCH] fix jiffies clocksource inittime 2007-04-04 21:12:47 -07:00
.gitignore
acct.c
audit.c [NETLINK]: Switch cb_lock spinlock to mutex and allow to override it 2007-04-25 22:29:03 -07:00
audit.h
auditfilter.c [PATCH] minor update to rule add/delete messages (ver 2) 2007-02-17 21:30:09 -05:00
auditsc.c [PATCH] fix deadlock in audit_log_task_context() 2007-03-14 15:27:48 -07:00
capability.c [PATCH] pid: replace do/while_each_task_pid with do/while_each_pid_task 2007-02-12 09:48:32 -08:00
compat.c
configs.c
cpu.c [PATCH] Fix microcode-related suspend problem 2007-04-02 10:06:09 -07:00
cpuset.c cpusets: allow TIF_MEMDIE threads to allocate anywhere 2007-05-07 12:12:53 -07:00
delayacct.c KMEM_CACHE(): simplify slab cache creation 2007-05-07 12:12:55 -07:00
dma.c
exec_domain.c
exit.c Return EPERM not ECHILD on security_task_wait failure 2007-05-07 12:12:57 -07:00
extable.c
fork.c slab allocators: Remove SLAB_DEBUG_INITIAL flag 2007-05-07 12:12:57 -07:00
futex_compat.c
futex.c [PATCH] futex: PI state locking fix 2007-03-16 19:25:06 -07:00
hrtimer.c [NET]: Fix networking compilation errors 2007-04-27 15:31:24 -07:00
itimer.c [PATCH] hrtimers: prevent possible itimer DoS 2007-02-16 08:13:59 -08:00
kallsyms.c Extend print_symbol capability 2007-04-30 16:40:39 -07:00
Kconfig.hz
Kconfig.preempt
kexec.c
kfifo.c
kmod.c Revert "Driver core: let request_module() send a /sys/modules/kmod/-uevent" 2007-02-23 14:54:57 -08:00
kprobes.c [PATCH] kprobes: list all active probes in the system 2007-02-20 17:10:14 -08:00
ksysfs.c remove "struct subsystem" as it is no longer needed 2007-05-02 18:57:59 -07:00
kthread.c
latency.c
lockdep_internals.h
lockdep_proc.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
lockdep.c [PATCH] lockdep: debug_show_all_locks & debug_show_held_locks vs. debug_locks 2007-03-22 19:39:06 -07:00
Makefile [PATCH] sysctl: move utsname sysctls to their own file 2007-02-14 08:09:58 -08:00
module.c Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6 2007-05-05 14:55:20 -07:00
mutex-debug.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
mutex-debug.h
mutex.c
mutex.h
nsproxy.c
panic.c
params.c remove "struct subsystem" as it is no longer needed 2007-05-02 18:57:59 -07:00
pid.c KMEM_CACHE(): simplify slab cache creation 2007-05-07 12:12:55 -07:00
posix-cpu-timers.c [PATCH] posix timers: RCU optimization for clock_gettime() 2007-02-16 08:14:00 -08:00
posix-timers.c [PATCH] hrtimers: add high resolution timer support 2007-02-16 08:13:59 -08:00
printk.c kernel/printk.c: comment fix 2007-02-17 20:10:16 +01:00
profile.c
ptrace.c
rcupdate.c
rcutorture.c [PATCH] Publish rcutorture module parameters via sysfs, read-only 2007-03-06 09:30:25 -08:00
relay.c [PATCH] kernel-doc fixes for 2.6.20-git15 (non-drivers) 2007-03-01 14:53:37 -08:00
resource.c libata/IDE: remove combined mode quirk 2007-04-28 14:15:59 -04:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c [PATCH] hrtimers: namespace and enum cleanup 2007-02-16 08:13:58 -08:00
rtmutex.h
rwsem.c
sched.c Safer nr_node_ids and nr_node_ids determination and initial values 2007-05-07 12:12:51 -07:00
seccomp.c
signal.c KMEM_CACHE(): simplify slab cache creation 2007-05-07 12:12:55 -07:00
softirq.c [PATCH] tick-management: dyntick / highres functionality 2007-02-16 08:13:59 -08:00
softlockup.c
spinlock.c
srcu.c
stacktrace.c
stop_machine.c
sys_ni.c
sys.c [PATCH] pid: replace do/while_each_task_pid with do/while_each_pid_task 2007-02-12 09:48:32 -08:00
sysctl.c Allow reading tainted flag as user 2007-04-24 08:23:08 -07:00
taskstats.c KMEM_CACHE(): simplify slab cache creation 2007-05-07 12:12:55 -07:00
time.c [TCP] tcp_probe: improvements for net-2.6.22 2007-04-25 22:28:10 -07:00
timer.c [AF_RXRPC]: Make it possible to merely try to cancel timers from a module 2007-04-26 15:46:56 -07:00
tsacct.c [PATCH] time: x86_64: split x86_64/kernel/time.c up 2007-02-16 08:14:00 -08:00
uid16.c
user.c
utsname_sysctl.c [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
utsname.c
wait.c
workqueue.c [PATCH] Add debugging feature /proc/timer_stat 2007-02-16 08:13:59 -08:00