Commit-ID: 70d715fd0597f18528f389b5ac59102263067744 Gitweb: http://git.kernel.org/tip/70d715fd0597f18528f389b5ac59102263067744 Author: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx> AuthorDate: Mon, 3 Aug 2009 11:48:19 +0900 Committer: Ingo Molnar <mingo@xxxxxxx> CommitDate: Tue, 4 Aug 2009 10:16:41 +0200 posix-timers: Fix oops in clock_nanosleep() with CLOCK_MONOTONIC_RAW Prevent calling do_nanosleep() with clockid CLOCK_MONOTONIC_RAW, it may cause oops, such as NULL pointer dereference. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@xxxxxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: John Stultz <johnstul@xxxxxxxxxx> Cc: <stable@xxxxxxxxxx> LKML-Reference: <4A764FF3.50607@xxxxxxxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- kernel/posix-timers.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c index 052ec4d..d089d05 100644 --- a/kernel/posix-timers.c +++ b/kernel/posix-timers.c @@ -202,6 +202,12 @@ static int no_timer_create(struct k_itimer *new_timer) return -EOPNOTSUPP; } +static int no_nsleep(const clockid_t which_clock, int flags, + struct timespec *tsave, struct timespec __user *rmtp) +{ + return -EOPNOTSUPP; +} + /* * Return nonzero if we know a priori this clockid_t value is bogus. */ @@ -254,6 +260,7 @@ static __init int init_posix_timers(void) .clock_get = posix_get_monotonic_raw, .clock_set = do_posix_clock_nosettime, .timer_create = no_timer_create, + .nsleep = no_nsleep, }; register_posix_clock(CLOCK_REALTIME, &clock_realtime); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html