Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Thomas Gleixner c1ee626428 genirq: Prevent access beyond allocated_irqs bitmap ... Lars-Peter Clausen pointed out: I stumbled upon this while looking through the existing archs using SPARSE_IRQ. Even with SPARSE_IRQ the NR_IRQS is still the upper limit for the number of IRQs. Both PXA and MMP set NR_IRQS to IRQ_BOARD_START, with IRQ_BOARD_START being the number of IRQs used by the core. In various machine files the nr_irqs field of the ARM machine defintion struct is then set to "IRQ_BOARD_START + NR_BOARD_IRQS". As a result "nr_irqs" will greater then NR_IRQS which then again causes the "allocated_irqs" bitmap in the core irq code to be accessed beyond its size overwriting unrelated data. The core code really misses a sanity check there. This went unnoticed so far as by chance the compiler/linker places data behind that bitmap which gets initialized later on those affected platforms. So the obvious fix would be to add a sanity check in early_irq_init() and break all affected platforms. Though that check wants to be backported to stable as well, which will require to fix all known problematic platforms and probably some more yet not known ones as well. Lots of churn. A way simpler solution is to allocate a slightly larger bitmap and avoid the whole churn w/o breaking anything. Add a few warnings when an arch returns utter crap. Reported-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org # .37 Cc: Haojian Zhuang <haojian.zhuang@marvell.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org>		2011-02-19 12:10:51 +01:00
..
debug	Merge branch 'master' into for-next	2010-12-22 18:57:02 +01:00
gcov	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
irq	genirq: Prevent access beyond allocated_irqs bitmap	2011-02-19 12:10:51 +01:00
power	Merge branch 'fixes-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2011-02-18 12:36:06 -08:00
time	timer debug: Hide kernel addresses via %pK in /proc/timer_list	2011-02-12 14:11:56 +01:00
trace	Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block	2011-02-09 11:45:21 -08:00
.gitignore
acct.c	pass a struct path to vfs_statfs	2010-08-09 16:48:42 -04:00
async.c
audit.c	audit: error message typo correction	2010-11-03 13:49:58 -04:00
audit.h	audit: make functions static	2010-10-30 01:42:19 -04:00
audit_tree.c	in untag_chunk() we need to do alloc_chunk() a bit earlier	2010-10-30 02:18:32 -04:00
audit_watch.c	audit: make functions static	2010-10-30 01:42:19 -04:00
auditfilter.c	Audit: add support to match lsm labels on user audit messages	2010-10-30 01:41:57 -04:00
auditsc.c	audit mmap	2010-10-30 08:45:43 -04:00
backtracetest.c
bounds.c
capability.c	security: add cred argument to security_capable()	2011-02-11 17:41:58 +11:00
cgroup.c	Merge branch 'vfs-scale-working' of git://git.kernel.org/pub/scm/linux/kernel/git/npiggin/linux-npiggin	2011-01-14 09:08:29 -08:00
cgroup_freezer.c	cgroup_freezer: update_freezer_state() does incorrect state transitions	2010-10-27 18:03:08 -07:00
compat.c	compat: Make compat_alloc_user_space() incorporate the access_ok()	2010-09-14 16:08:45 -07:00
configs.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
cpu.c	Merge branches 'x86-alternatives-for-linus', 'x86-fpu-for-linus', 'x86-hwmon-for-linus', 'x86-paravirt-for-linus', 'core-locking-for-linus' and 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-06 11:11:50 -08:00
cpuset.c	convert cgroup and cpuset	2010-10-29 04:17:06 -04:00
cred.c	CRED: Fix memory and refcount leaks upon security_prepare_creds() failure	2011-02-07 14:04:00 -08:00
delayacct.c
dma.c
elfcore.c
exec_domain.c	sys_personality: remove the bogus checks in sys_personality()->__set_personality() path	2010-08-09 20:45:05 -07:00
exit.c	Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-11 11:02:13 -08:00
extable.c
fork.c	thp: khugepaged	2011-01-13 17:32:43 -08:00
freezer.c	Freezer: Fix a race during freezing of TASK_STOPPED tasks	2010-12-24 15:02:40 +01:00
futex.c	Merge branches 'core-fixes-for-linus', 'x86-fixes-for-linus', 'timers-fixes-for-linus' and 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-15 12:45:00 -08:00
futex_compat.c	futex: Address compiler warnings in exit_robust_list	2010-11-10 13:27:50 +01:00
groups.c	kernel/groups.c: fix integer overflow in groups_search	2010-09-09 18:57:24 -07:00
hrtimer.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-01-13 10:05:56 -08:00
hung_task.c	lockup detector: Fix grammar by adding a missing "to" in the comments	2010-08-17 09:11:52 +02:00
hw_breakpoint.c	perf: Dynamic pmu types	2010-12-16 11:36:43 +01:00
irq_work.c	irq_work: Use per cpu atomics instead of regular atomics	2010-12-18 15:54:48 +01:00
itimer.c
jump_label.c	jump label: Make arch_jump_label_text_poke_early() optional	2010-10-29 12:56:13 -04:00
kallsyms.c	Revert "kernel: make /proc/kallsyms mode 400 to reduce ease of attacking"	2010-11-19 11:54:40 -08:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks
Kconfig.preempt
kexec.c	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
kfifo.c	kfifo: fix scatterlist usage	2010-10-01 10:50:58 -07:00
kmod.c	Make do_execve() take a const filename pointer	2010-08-17 18:07:43 -07:00
kprobes.c	Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2011-01-07 17:02:58 -08:00
ksysfs.c
kthread.c	sched: Constify function scope static struct sched_param usage	2011-01-07 15:55:45 +01:00
latencytop.c	fs/proc/base.c, kernel/latencytop.c: convert sprintf_symbol() to %ps	2011-01-13 08:03:16 -08:00
lockdep.c	lockdep: Move early boot local IRQ enable/disable status to init/main.c	2011-01-20 13:32:33 +01:00
lockdep_internals.h
lockdep_proc.c	locking, lockdep: Convert sprintf_symbol to %pS	2010-11-10 10:23:58 +01:00
lockdep_states.h
Makefile	kernel: clean up USE_GENERIC_SMP_HELPERS	2011-01-13 08:03:08 -08:00
module.c	tracepoints: Fix section alignment using pointer array	2011-02-03 09:28:46 -05:00
mutex-debug.c
mutex-debug.h
mutex.c	mutexes, sched: Introduce arch_mutex_cpu_relax()	2010-11-26 15:05:34 +01:00
mutex.h
notifier.c
ns_cgroup.c	cgroup: notify ns_cgroup deprecated	2010-10-27 18:03:09 -07:00
nsproxy.c
padata.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2010-08-04 15:23:14 -07:00
panic.c	ACPI, APEI, Generic Hardware Error Source POLL/IRQ/NMI notification type support	2011-01-12 03:06:19 -05:00
params.c	module: show version information for built-in modules in sysfs	2011-01-24 14:32:51 +10:30
perf_event.c	perf: Fix reading in perf_event_read()	2011-02-03 12:15:46 +01:00
pid.c	Add RCU check for find_task_by_vpid().	2010-08-19 17:18:02 -07:00
pid_namespace.c
pm_qos_params.c	PM / PM QoS: Fix reversed min and max	2010-11-15 22:45:22 +01:00
posix-cpu-timers.c	posix-cpu-timers: Rcu_read_lock/unlock protect find_task_by_vpid call	2010-11-10 13:07:06 +01:00
posix-timers.c	posix-timers: Annotate lock_timer()	2010-10-21 17:30:06 +02:00
printk.c	cap_syslog: accept CAP_SYS_ADMIN for now	2011-02-10 17:53:55 -08:00
profile.c	llseek: automatically add .llseek fop	2010-10-15 15:53:27 +02:00
ptrace.c	ptrace: use safer wake up on ptrace_detach()	2011-02-11 16:12:19 -08:00
range.c	kernel/range.c: fix clean_sort_range() for the case of full array	2010-11-12 07:55:31 -08:00
rcupdate.c	Merge branch 'rcu/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-2.6-rcu into core/rcu	2010-10-07 09:43:11 +02:00
rcutiny.c	rcu: avoid pointless blocked-task warnings	2011-01-14 04:58:08 -08:00
rcutiny_plugin.h	rcu: Distinguish between boosting and boosted	2010-11-29 22:01:56 -08:00
rcutorture.c	rcu: add priority-inversion testing to rcutorture	2010-10-07 10:41:08 -07:00
rcutree.c	Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2011-01-07 17:02:58 -08:00
rcutree.h	rcu: limit rcu_node leaf-level fanout	2010-12-17 12:34:20 -08:00
rcutree_plugin.h	rcu: increase synchronize_sched_expedited() batching	2010-12-17 12:34:08 -08:00
rcutree_trace.c	rcu,cleanup: simplify the code when cpu is dying	2010-11-29 22:01:58 -08:00
relay.c	Clean up relay_alloc_page_array() slightly by using vzalloc rather than vmalloc and memset	2010-11-05 08:21:34 -07:00
res_counter.c
resource.c	resources: add arch hook for preventing allocation in reserved areas	2010-12-17 10:01:09 -08:00
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c	rtmutex-tester: make it build without BKL	2010-10-19 11:29:56 +02:00
rtmutex.c
rtmutex.h
rtmutex_common.h
rwsem.c
sched.c	Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-20 16:37:55 -08:00
sched_autogroup.c	sched, autogroup: Fix CONFIG_RT_GROUP_SCHED sched_setscheduler() failure	2011-01-18 15:09:42 +01:00
sched_autogroup.h	sched, autogroup: Fix CONFIG_RT_GROUP_SCHED sched_setscheduler() failure	2011-01-18 15:09:42 +01:00
sched_clock.c	sched: Add some clock info to sched_debug	2010-11-23 10:29:08 +01:00
sched_cpupri.c
sched_cpupri.h
sched_debug.c	sched: Replace rq->bkl_count with rq->rq_sched_info.bkl_count	2011-01-18 15:09:43 +01:00
sched_fair.c	sched: Use rq->clock_task instead of rq->clock for correctly maintaining load averages	2011-01-26 12:31:03 +01:00
sched_features.h	sched: Rewrite tg_shares_up)	2010-11-18 13:27:46 +01:00
sched_idletask.c
sched_rt.c	sched: Fix update_curr_rt()	2011-02-03 12:21:33 +01:00
sched_stats.h	sched_stat: Update sched_info_queue/dequeue() code comments	2010-10-24 13:29:01 +02:00
sched_stoptask.c	sched: Fix cross-sched-class wakeup preemption	2010-11-11 14:37:23 +01:00
seccomp.c
semaphore.c
signal.c	signals: annotate lock context change on ptrace_stop()	2010-10-27 18:03:12 -07:00
smp.c	Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-20 18:30:37 -08:00
softirq.c	kernel: clean up USE_GENERIC_SMP_HELPERS	2011-01-13 08:03:08 -08:00
spinlock.c
srcu.c	rcu: demote SRCU_SYNCHRONIZE_DELAY from kernel-parameter status	2011-01-14 04:56:49 -08:00
stacktrace.c
stop_machine.c	stop_machine: convert cpu notifier to return encapsulate errno value	2010-10-26 16:52:15 -07:00
sys.c	Fix prlimit64 for suid/sgid processes	2011-01-31 13:01:27 +10:00
sys_ni.c	powerpc: define a compat_sys_recv cond_syscall	2010-09-23 17:03:55 +10:00
sysctl.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2011-01-26 16:31:44 +10:00
sysctl_binary.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2011-01-13 10:05:56 -08:00
sysctl_check.c	sysctl: min/max bounds are optional	2010-10-15 14:42:24 -07:00
taskstats.c	taskstats: use better ifdef for alignment	2011-01-13 08:03:19 -08:00
test_kprobes.c	kprobes: Fix selftest to clear flags field for reusing probes	2010-10-14 08:55:27 +02:00
time.c	Kill off a bunch of warning: ‘inline’ is not at beginning of declaration	2010-11-28 23:08:04 +01:00
timeconst.pl
timer.c	Revert "lockdep, timer: Fix del_timer_sync() annotation"	2011-02-08 16:18:39 +01:00
tracepoint.c	tracepoints: Fix section alignment using pointer array	2011-02-03 09:28:46 -05:00
tsacct.c	taskstats: use real microsecond granularity for CPU times	2010-10-27 18:03:17 -07:00
uid16.c
up.c
user-return-notifier.c
user.c	fix freeing user_struct in user cache	2010-12-29 11:31:38 -08:00
user_namespace.c	user_ns: improve the user_ns on-the-slab packaging	2011-01-13 08:03:18 -08:00
utsname.c
utsname_sysctl.c
wait.c	docbook: add more wait/wake/completion to device-drivers docbook	2010-10-26 17:32:41 -07:00
watchdog.c	watchdog, nmi: Lower the severity of error messages	2011-02-10 13:21:59 +01:00
workqueue.c	workqueue: make sure MAYDAY_INITIAL_TIMEOUT is at least 2 jiffies long	2011-02-16 18:10:19 +01:00
workqueue_sched.h