Arnd Bergmann
179c85ea53
futex_compat: fix list traversal bugs ...
The futex list traversal on the compat side appears to have
a bug.
It's loop termination condition compares:
while (compat_ptr(uentry) != &head->list)
But that can't be right because "uentry" has the special
"pi" indicator bit still potentially set at bit 0. This
is cleared by fetch_robust_entry() into the "entry"
return value.
What this seems to mean is that the list won't terminate
when list iteration gets back to the the head. And we'll
also process the list head like a normal entry, which could
cause all kinds of problems.
So we should check for equality with "entry". That pointer
is of the non-compat type so we have to do a little casting
to keep the compiler and sparse happy.
The same problem can in theory occur with the 'pending'
variable, although that has not been reported from users
so far.
Based on the original patch from David Miller.
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:20 -07:00
request_irq: fix DEBUG_SHIRQ handling
2007-08-31 01:42:23 -07:00
PM: Fix dependencies of CONFIG_SUSPEND and CONFIG_HIBERNATION
2007-08-31 01:42:22 -07:00
timer: remove clockevents_unregister_notifier
2007-08-11 15:47:42 -07:00
Cleanup non-arch xtime uses, use get_seconds() or current_kernel_time().
2007-07-25 10:09:20 -07:00
Freezer: make kernel threads nonfreezable by default
2007-07-17 10:23:02 -07:00
Audit: add TTY input auditing
2007-07-16 09:05:47 -07:00
[PATCH] allow audit filtering on bit & operations
2007-07-22 09:57:02 -04:00
kernel/auditsc.c: fix an off-by-one
2007-08-22 19:52:44 -07:00
signal/timer/event: timerfd compat code
2007-05-11 08:29:36 -07:00
use simple_read_from_buffer in kernel/
2007-05-09 12:30:49 -07:00
PM: Fix dependencies of CONFIG_SUSPEND and CONFIG_HIBERNATION
2007-08-31 01:42:22 -07:00
usermodehelper: Tidy up waiting
2007-07-18 08:47:40 -07:00
sched: update delay-accounting to use CFS's precise stats
2007-07-09 18:52:00 +02:00
Assign task_struct.exit_code before taskstats_exit()
2007-08-31 01:42:22 -07:00
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
futex_unlock_pi() hurts my brain and may cause application deadlock
2007-08-22 19:52:44 -07:00
futex_compat: fix list traversal bugs
2007-09-11 17:21:20 -07:00
Cache xtime every call to update_wall_time
2007-07-25 10:17:44 -07:00
kallsyms: make KSYM_NAME_LEN include space for trailing '\0'
2007-07-17 10:23:03 -07:00
[PATCH] sched: arch preempt notifier mechanism
2007-07-26 13:40:43 +02:00
is_power_of_2: kernel/kfifo.c
2007-07-16 09:05:50 -07:00
kernel-doc fix for kmod.c
2007-07-26 11:33:06 -07:00
fix compilation with gcc 4.2
2007-08-11 15:47:42 -07:00
FRV: Fix linkage problems
2007-07-20 12:01:34 -07:00
kthread: silence bogus section mismatch warning
2007-07-31 15:39:42 -07:00
lockdep debugging: give stacktrace for init_error
2007-07-19 10:04:49 -07:00
Fix leak on /proc/lockdep_stats
2007-07-31 15:39:40 -07:00
user namespace: add the framework
2007-07-16 09:05:47 -07:00
Fix Off-by-one in /sys/module/*/refcnt
2007-08-22 14:35:35 -07:00
lockstat: measure lock bouncing
2007-07-19 10:04:49 -07:00
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
Report that kernel is tainted if there was an OOPS
2007-07-17 10:23:02 -07:00
modules: better error messages when modules fail to load due to a sysfs problem.
2007-07-30 14:25:23 -07:00
namespace: ensure clone_flags are always stored in an unsigned long
2007-07-16 09:05:48 -07:00
sched: make posix-cpu-timers use CFS's accounting information
2007-07-09 18:51:58 +02:00
posix-timers: fix creation race
2007-08-22 19:52:46 -07:00
fix - ensure we don't use bootconsoles after init has been released
2007-08-21 20:23:53 -07:00
fix compilation with gcc 4.2
2007-08-11 15:47:42 -07:00
Fix spurious syscall tracing after PTRACE_DETACH + PTRACE_ATTACH
2007-09-10 18:57:47 -07:00
Add suspend-related notifications for CPU hotplug
2007-05-09 12:30:56 -07:00
Freezer: make kernel threads nonfreezable by default
2007-07-17 10:23:02 -07:00
Fix a use after free bug in kernel->userspace relay file support
2007-07-31 15:39:42 -07:00
FUTEX: Tidy up the code
2007-07-16 09:05:49 -07:00
Freezer: make kernel threads nonfreezable by default
2007-07-17 10:23:02 -07:00
FUTEX: Tidy up the code
2007-07-16 09:05:49 -07:00
FUTEX: Tidy up the code
2007-07-16 09:05:49 -07:00
lockstat: hook into spinlock_t, rwlock_t, rwsem and mutex
2007-07-19 10:04:49 -07:00
sched: fix xtensa build warning
2007-09-05 14:32:49 +02:00
sched: debug: fix sum_exec_runtime clearing
2007-09-05 14:32:49 +02:00
sched: fix ideal_runtime calculations for reniced tasks
2007-09-05 14:32:49 +02:00
sched: remove the 'u64 now' parameter from ->put_prev_task()
2007-08-09 11:16:49 +02:00
sched: optimize task_tick_rt() a bit
2007-08-24 20:39:10 +02:00
[PATCH] sched: add schedstat_set() API
2007-08-02 17:41:40 +02:00
make seccomp zerocost in schedule
2007-07-16 09:05:50 -07:00
sigqueue_free: fix the race with collect_signal()
2007-08-31 01:42:23 -07:00
Freezer: make kernel threads nonfreezable by default
2007-07-17 10:23:02 -07:00
Freezer: make kernel threads nonfreezable by default
2007-07-17 10:23:02 -07:00
lockstat: hook into spinlock_t, rwlock_t, rwsem and mutex
2007-07-19 10:04:49 -07:00
Fix stop_machine_run problem with naughty real time process
2007-07-16 09:05:41 -07:00
setpgid(child) fails if the child was forked by sub-thread
2007-08-31 01:42:22 -07:00
diskquota: 32bit quota tools on 64bit architectures
2007-07-16 09:05:48 -07:00
sched: cleanup, sched_granularity -> sched_min_granularity
2007-08-25 18:41:53 +02:00
taskstats: add context-switch counters
2007-07-16 09:05:46 -07:00
Cleanup non-arch xtime uses, use get_seconds() or current_kernel_time().
2007-07-25 10:09:20 -07:00
Pull ia64-clocksource into release branch
2007-07-20 11:26:47 -07:00
Cleanup non-arch xtime uses, use get_seconds() or current_kernel_time().
2007-07-25 10:09:20 -07:00
mm: Remove slab destructors from kmem_cache_create().
2007-07-20 10:11:58 +09:00
userns: don't leak root user
2007-08-31 01:42:23 -07:00
namespace: ensure clone_flags are always stored in an unsigned long
2007-07-16 09:05:48 -07:00
remove CONFIG_UTS_NS and CONFIG_IPC_NS
2007-07-16 09:05:47 -07:00
fix bogus hotplug cpu warning
2007-08-27 10:27:48 -07:00
179c85ea53