Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Oleg Nesterov 485d527686 sys_personality: change sys_personality() to accept "unsigned int" instead of u_long ... task_struct->pesonality is "unsigned int", but sys_personality() paths use "unsigned long pesonality". This means that every assignment or comparison is not right. In particular, if this argument does not fit into "unsigned int" __set_personality() changes the caller's personality and then sys_personality() returns -EINVAL. Turn this argument into "unsigned int" and avoid overflows. Obviously, this is the user-visible change, we just ignore the upper bits. But this can't break the sane application. There is another thing which can confuse the poorly written applications. User-space thinks that this syscall returns int, not long. This means that the returned value can be negative and look like the error code. But note that libc won't be confused and thus errno won't be set, and with this patch the user-space can never get -1 unless sys_personality() really fails. And, most importantly, the negative RET != -1 is only possible if that app previously called personality(RET). Pointed-out-by: Wenming Zhang <wezhang@redhat.com> Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-06-04 15:21:45 -07:00
..
debug	x86, kgdb, init: Add early and late debug states	2010-05-20 21:04:29 -05:00
gcov
irq	genirq: Clear CPU mask in affinity_hint when none is provided	2010-05-12 11:23:34 +02:00
power	PM / Hibernate: Fix block_io.c printk warning	2010-05-10 23:08:18 +02:00
time	Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-19 17:11:10 -07:00
trace	blktrace: Fix new kernel-doc warnings	2010-05-31 09:58:20 +02:00
.gitignore
acct.c	Merge branch 'next' into for-linus	2010-05-18 08:57:00 +10:00
async.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
audit.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
audit.h
audit_tree.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
audit_watch.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
auditfilter.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
auditsc.c	audit: preface audit printk with audit	2010-04-05 13:19:45 -07:00
backtracetest.c
bounds.c	kbuild: move bounds.h to include/generated	2009-12-12 13:08:14 +01:00
capability.c	sched: Remove remaining USER_SCHED code	2010-04-02 20:12:00 +02:00
cgroup.c	cgroups: make cftype.unregister_event() void-returning	2010-05-27 09:12:44 -07:00
cgroup_freezer.c	Freezer / cgroup freezer: Update stale locking comments	2010-05-10 23:18:47 +02:00
compat.c	cpumask: fix compat getaffinity	2010-05-19 11:48:18 -07:00
configs.c
cpu.c	fix cpu_chain section mismatch...	2010-06-01 09:22:50 -07:00
cpuset.c	cpusets: new round-robin rotor for SLAB allocations	2010-05-27 09:12:44 -07:00
cred.c	umh: creds: kill subprocess_info->cred logic	2010-05-27 09:12:45 -07:00
delayacct.c
dma.c
early_res.c	x86: Do not free zero sized per cpu areas	2010-03-29 18:55:40 +02:00
elfcore.c	elf coredump: add extended numbering support	2010-03-06 11:26:46 -08:00
exec_domain.c	sys_personality: change sys_personality() to accept "unsigned int" instead of u_long	2010-06-04 15:21:45 -07:00
exit.c	proc: turn signal_struct->count into "int nr_threads"	2010-05-27 09:12:47 -07:00
extable.c
fork.c	Revert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"	2010-05-30 09:00:03 -07:00
freezer.c
futex.c	futex: Handle futex value corruption gracefully	2010-02-03 15:13:22 +01:00
futex_compat.c	futex: Protect pid lookup in compat code with RCU	2009-12-09 14:22:14 +01:00
groups.c	security: remove dead hook task_setgroups	2010-04-12 12:19:18 +10:00
hrtimer.c	hrtimer: Avoid double seqlock	2010-05-26 16:15:37 +02:00
hung_task.c
hw_breakpoint.c	hw_breakpoints: Fix percpu build failure	2010-05-04 08:39:36 +02:00
itimer.c
kallsyms.c	kdb: core for kgdb back end (2 of 2)	2010-05-20 21:04:21 -05:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks	mutex: Better control mutex adaptive spinning config	2009-12-03 11:50:11 +01:00
Kconfig.preempt
kexec.c	kexec: fix OOPS in crash_kernel_shrink	2010-05-11 17:33:42 -07:00
kfifo.c	kfifo: Don't use integer as NULL pointer	2010-02-16 15:11:08 -08:00
kmod.c	call_usermodehelper: UMH_WAIT_EXEC ignores kernel_thread() failure	2010-05-27 09:12:45 -07:00
kprobes.c	kprobes: Move enable/disable_kprobe() out from debugfs code	2010-05-08 18:08:30 +02:00
ksysfs.c	sysfs: add struct file* to bin_attr callbacks	2010-05-21 09:37:31 -07:00
kthread.c	cpuset: fix the problem that cpuset_mem_spread_node() returns an offline node	2010-03-24 16:31:21 -07:00
latencytop.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
lockdep.c	lockdep: Add novalidate class for dev->mutex conversion	2010-05-21 09:37:30 -07:00
lockdep_internals.h	lockdep: No need to disable preemption in debug atomic ops	2010-05-04 05:38:16 +02:00
lockdep_proc.c	lockstat: Make lockstat counting per cpu	2010-04-06 00:15:37 +02:00
lockdep_states.h
Makefile	Move kernel/kgdb.c to kernel/debug/debug_core.c	2010-05-20 21:04:18 -05:00
module.c	Merge branch 'for-35' of git://repo.or.cz/linux-kbuild	2010-06-01 08:55:52 -07:00
mutex-debug.c
mutex-debug.h	locking: Implement new raw_spinlock	2009-12-14 23:55:32 +01:00
mutex.c	mutex: Fix optimistic spinning vs. BKL	2010-05-19 08:18:44 +02:00
mutex.h
notifier.c	sched: Use lockdep-based checking on rcu_dereference()	2010-02-25 10:34:26 +01:00
ns_cgroup.c
nsproxy.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
padata.c	kernel/: convert cpu notifier to return encapsulate errno value	2010-05-27 09:12:48 -07:00
panic.c	panic: call console_verbose() in panic	2010-05-27 09:12:53 -07:00
params.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
perf_event.c	perf: Fix crash in swevents	2010-06-03 17:03:08 +02:00
pid.c	pids: increase pid_max based on num_possible_cpus	2010-05-27 09:12:51 -07:00
pid_namespace.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
pm_qos_params.c	PM: PM QOS update fix	2010-05-17 00:21:03 +02:00
posix-cpu-timers.c	posix-cpu-timers: avoid "task->signal != NULL" checks	2010-05-27 09:12:46 -07:00
posix-timers.c	posix_timer: Fix error path in timer_create	2010-05-27 22:38:15 +02:00
printk.c	printk,kdb: capture printk() when in kdb shell	2010-05-20 21:04:27 -05:00
profile.c	numa: in-kernel profiling: use cpu_to_mem() for per cpu allocations	2010-05-27 09:12:57 -07:00
ptrace.c	ptrace: PTRACE_GETFDPIC: fix the unsafe usage of child->mm	2010-05-27 09:12:44 -07:00
range.c	x86: Change range end to start+size	2010-02-10 17:47:17 -08:00
rcupdate.c	rcu: slim down rcutiny by removing rcu_scheduler_active and friends	2010-05-10 11:08:34 -07:00
rcutiny.c	rcu: remove all rcu head initializations, except on_stack initializations	2010-05-11 16:10:47 -07:00
rcutiny_plugin.h	rcu: slim down rcutiny by removing rcu_scheduler_active and friends	2010-05-10 11:08:34 -07:00
rcutorture.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-18 08:27:54 -07:00
rcutree.c	rcu: remove all rcu head initializations, except on_stack initializations	2010-05-11 16:10:47 -07:00
rcutree.h	rcu: reduce the number of spurious RCU_SOFTIRQ invocations	2010-05-10 11:08:35 -07:00
rcutree_plugin.h	rcu: remove all rcu head initializations, except on_stack initializations	2010-05-11 16:10:47 -07:00
rcutree_trace.c	rcu: reduce the number of spurious RCU_SOFTIRQ invocations	2010-05-10 11:08:35 -07:00
relay.c	kernel/: convert cpu notifier to return encapsulate errno value	2010-05-27 09:12:48 -07:00
res_counter.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
resource.c	resource: shared I/O region support	2010-05-11 12:01:10 -07:00
rtmutex-debug.c	sched: Convert pi_lock to raw_spinlock	2009-12-14 23:55:33 +01:00
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c	rtmutes: Convert rtmutex.lock to raw_spinlock	2009-12-14 23:55:33 +01:00
rtmutex.h
rtmutex_common.h
rwsem.c
sched.c	sched: Fix wake_affine() vs RT tasks	2010-06-01 09:27:16 +02:00
sched_clock.c	blkio: fix for modular blk-cgroup build	2010-04-15 08:54:59 +02:00
sched_cpupri.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
sched_cpupri.h	sched: Convert cpupri lock to raw_spinlock	2009-12-14 23:55:33 +01:00
sched_debug.c	proc_sched_show_task(): use get_nr_threads()	2010-05-27 09:12:47 -07:00
sched_fair.c	sched: Fix wake_affine() vs RT tasks	2010-06-01 09:27:16 +02:00
sched_features.h	sched: Remove ASYM_GRAN feature	2010-03-11 18:32:53 +01:00
sched_idletask.c	sched: Cure load average vs NO_HZ woes	2010-04-23 11:02:02 +02:00
sched_rt.c	sched: Add enqueue/dequeue flags	2010-04-02 20:12:05 +02:00
sched_stats.h
seccomp.c
semaphore.c
signal.c	exit: change zap_other_threads() to count sub-threads	2010-05-27 09:12:46 -07:00
slow-work-debugfs.c
slow-work.c	slow-work: use get_ref wrapper instead of directly calling get_ref	2010-03-29 09:13:30 -07:00
slow-work.h	SLOW_WORK: CONFIG_SLOW_WORK_PROC should be CONFIG_SLOW_WORK_DEBUG	2010-03-29 09:14:47 -07:00
smp.c	kernel/: convert cpu notifier to return encapsulate errno value	2010-05-27 09:12:48 -07:00
softirq.c	kernel/: convert cpu notifier to return encapsulate errno value	2010-05-27 09:12:48 -07:00
softlockup.c	softlockup: Stop spurious softlockup messages due to overflow	2010-03-21 19:30:13 +01:00
spinlock.c	locking: Cleanup the name space completely	2009-12-14 23:55:33 +01:00
srcu.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
stacktrace.c
stop_machine.c	sched: Make sure timers have migrated before killing the migration_thread	2010-05-31 08:37:44 +02:00
sys.c	kmod: add init function to usermodehelper	2010-05-27 09:12:44 -07:00
sys_ni.c	Add generic sys_ipc wrapper	2010-03-12 15:52:32 -08:00
sysctl.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2010-05-25 16:59:51 -07:00
sysctl_binary.c	sysctl: don't use own implementation of hex_to_bin()	2010-05-25 08:07:05 -07:00
sysctl_check.c	ipv4 05/05: add sysctl to accept packets with local source addresses	2009-12-03 12:14:38 -08:00
taskstats.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
test_kprobes.c
time.c	timekeeping: Fix timezone update	2010-05-24 11:50:38 +02:00
timeconst.pl
timer.c	Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-05-28 10:16:27 -07:00
tracepoint.c	tracing: Let tracepoints have data passed to tracepoint callbacks	2010-05-14 09:50:34 -04:00
tsacct.c	mm: clean up mm_counter	2010-03-06 11:26:23 -08:00
uid16.c
up.c
user-return-notifier.c
user.c	sched: Remove a stale comment	2010-05-10 08:48:39 +02:00
user_namespace.c	kref: remove kref_set	2010-05-21 09:37:29 -07:00
utsname.c
utsname_sysctl.c
wait.c
workqueue.c	kernel/: convert cpu notifier to return encapsulate errno value	2010-05-27 09:12:48 -07:00