group->fanotify_data.f_flags = event_f_flags;
#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
spin_lock_init(&group->fanotify_data.access_lock);
---
-cgit v0.10.1
-From 29183a70b0b828500816bd794b3fe192fce89f73 Mon Sep 17 00:00:00 2001
-From: John Stultz <john.stultz@linaro.org>
-Date: Mon, 9 Feb 2015 23:30:36 -0800
-Subject: ntp: Fixup adjtimex freq validation on 32-bit systems
-
-Additional validation of adjtimex freq values to avoid
-potential multiplication overflows were added in commit
-5e5aeb4367b (time: adjtimex: Validate the ADJ_FREQUENCY values)
-
-Unfortunately the patch used LONG_MAX/MIN instead of
-LLONG_MAX/MIN, which was fine on 64-bit systems, but being
-much smaller on 32-bit systems caused false positives
-resulting in most direct frequency adjustments to fail w/
-EINVAL.
-
-ntpd only does direct frequency adjustments at startup, so
-the issue was not as easily observed there, but other time
-sync applications like ptpd and chrony were more effected by
-the bug.
-
-See bugs:
-
- https://bugzilla.kernel.org/show_bug.cgi?id=92481
- https://bugzilla.redhat.com/show_bug.cgi?id=1188074
-
-This patch changes the checks to use LLONG_MAX for
-clarity, and additionally the checks are disabled
-on 32-bit systems since LLONG_MAX/PPM_SCALE is always
-larger then the 32-bit long freq value, so multiplication
-overflows aren't possible there.
-
-Reported-by: Josh Boyer <jwboyer@fedoraproject.org>
-Reported-by: George Joseph <george.joseph@fairview5.com>
-Tested-by: George Joseph <george.joseph@fairview5.com>
-Signed-off-by: John Stultz <john.stultz@linaro.org>
-Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
-Cc: <stable@vger.kernel.org> # v3.19+
-Cc: Linus Torvalds <torvalds@linux-foundation.org>
-Cc: Sasha Levin <sasha.levin@oracle.com>
-Link: http://lkml.kernel.org/r/1423553436-29747-1-git-send-email-john.stultz@linaro.org
-[ Prettified the changelog and the comments a bit. ]
-Signed-off-by: Ingo Molnar <mingo@kernel.org>
-
-diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
-index 4b585e0..0f60b08 100644
---- a/kernel/time/ntp.c
-+++ b/kernel/time/ntp.c
-@@ -633,10 +633,14 @@ int ntp_validate_timex(struct timex *txc)
- if ((txc->modes & ADJ_SETOFFSET) && (!capable(CAP_SYS_TIME)))
- return -EPERM;
-
-- if (txc->modes & ADJ_FREQUENCY) {
-- if (LONG_MIN / PPM_SCALE > txc->freq)
-+ /*
-+ * Check for potential multiplication overflows that can
-+ * only happen on 64-bit systems:
-+ */
-+ if ((txc->modes & ADJ_FREQUENCY) && (BITS_PER_LONG == 64)) {
-+ if (LLONG_MIN / PPM_SCALE > txc->freq)
- return -EINVAL;
-- if (LONG_MAX / PPM_SCALE < txc->freq)
-+ if (LLONG_MAX / PPM_SCALE < txc->freq)
- return -EINVAL;
- }
-
---
-cgit v0.10.2
-