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Thomas Gleixner 7d99b7d634 [PATCH] Validate and sanitze itimer timeval from userspace ... According to the specification the timevals must be validated and an errorcode -EINVAL returned in case the timevals are not in canonical form. This check was never done in Linux. The pre 2.6.16 code converted invalid timevals silently. Negative timeouts were converted by the timeval_to_jiffies conversion to the maximum timeout. hrtimers and the ktime_t operations expect timevals in canonical form. Otherwise random results might happen on 32 bits machines due to the optimized ktime_add/sub operations. Negative timeouts are treated as already expired. This might break applications which work on pre 2.6.16. To prevent random behaviour and API breakage the timevals are checked and invalid timevals sanitized in a simliar way as the pre 2.6.16 code did. Invalid timevals are reported with a per boot limited number of kernel messages so applications which use this misfeature can be corrected. After a grace period of one year the sanitizing should be replaced by a correct validation check. This is also documented in Documentation/feature-removal-schedule.txt The validation and sanitizing is done inside do_setitimer so all callers (sys_setitimer, compat_sys_setitimer, osf_setitimer) are catched. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		19 years ago
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irq	…
power	…
.gitignore	…
Kconfig.hz	…
Kconfig.preempt	…
Makefile	[PATCH] relay: migrate from relayfs to a generic relay API	19 years ago
acct.c	…
audit.c	…
auditsc.c	…
capability.c	…
compat.c	…
configs.c	…
cpu.c	…
cpuset.c	[PATCH] cpuset: remove useless local variable initialization	19 years ago
dma.c	…
exec_domain.c	[PATCH] Fix module refcount leak in __set_personality()	19 years ago
exit.c	…
extable.c	…
fork.c	[PATCH] cpuset memory spread slab cache optimizations	19 years ago
futex.c	…
hrtimer.c	…
intermodule.c	…
itimer.c	[PATCH] Validate and sanitze itimer timeval from userspace	19 years ago
kallsyms.c	…
kexec.c	…
kfifo.c	…
kmod.c	…
kprobes.c	…
ksysfs.c	[PATCH] fix build error if CONFIG_SYSFS=n	19 years ago
kthread.c	…
module.c	[PATCH] strndup_user: convert module	19 years ago
mutex-debug.c	…
mutex-debug.h	…
mutex.c	…
mutex.h	…
panic.c	…
params.c	…
pid.c	…
posix-cpu-timers.c	…
posix-timers.c	…
printk.c	[PATCH] console_setup() depends (wrongly?) on CONFIG_PRINTK	19 years ago
profile.c	…
ptrace.c	…
rcupdate.c	[PATCH] rcu_process_callbacks: don't cli() while testing ->nxtlist	19 years ago
rcutorture.c	[PATCH] rcutorture: tag success/failure line with module parameters	19 years ago
relay.c	[PATCH] relay: consolidate sendfile() and read() code	19 years ago
resource.c	…
sched.c	…
seccomp.c	…
signal.c	…
softirq.c	…
softlockup.c	[PATCH] timer irq driven soft watchdog fix	19 years ago
spinlock.c	…
stop_machine.c	…
sys.c	[PATCH] RLIMIT_CPU: document wrong return value	19 years ago
sys_ni.c	…
sysctl.c	[PATCH] Range checking in do_proc_dointvec_(userhz_)jiffies_conv	19 years ago
time.c	…
timer.c	[PATCH] sys_alarm() unsigned signed conversion fixup	19 years ago
uid16.c	…
user.c	[PATCH] free_uid() locking improvement	19 years ago
wait.c	…
workqueue.c	…