sys-kernel/linux-{image,sources}-redcore : version bump to v5.4.5, enable aditional hardening options

1 files changed, 69 insertions, 0 deletions

diff --git a/sys-kernel/linux-image-redcore/files/5.4-0010-Don-t-use-hrtimer-overlay-when-pm_freezing-since-som.patch b/sys-kernel/linux-image-redcore/files/5.4-0010-Don-t-use-hrtimer-overlay-when-pm_freezing-since-som.patch
new file mode 100644
index 00000000..585ae59c
--- /dev/null
+++ b/sys-kernel/linux-image-redcore/files/5.4-0010-Don-t-use-hrtimer-overlay-when-pm_freezing-since-som.patch
@@ -0,0 +1,69 @@
+From 33b744fc53a49695b73d2f54868b72ea83b6809e Mon Sep 17 00:00:00 2001
+From: Con Kolivas <kernel@kolivas.org>
+Date: Mon, 20 Feb 2017 13:32:58 +1100
+Subject: [PATCH 10/16] Don't use hrtimer overlay when pm_freezing since some
+ drivers still don't correctly use freezable timeouts.
+
+---
+ kernel/time/hrtimer.c | 2 +-
+ kernel/time/timer.c   | 9 +++++----
+ 2 files changed, 6 insertions(+), 5 deletions(-)
+
+diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
+index defde211815c..10cc9f1e5dfe 100644
+--- a/kernel/time/hrtimer.c
++++ b/kernel/time/hrtimer.c
+@@ -2228,7 +2228,7 @@ long __sched schedule_msec_hrtimeout(long timeout)
+ 	 * (yet) better than Hz, as would occur during startup, use regular
+ 	 * timers.
+ 	 */
+-	if (jiffs > 4 || hrtimer_resolution >= NSEC_PER_SEC / HZ)
++	if (jiffs > 4 || hrtimer_resolution >= NSEC_PER_SEC / HZ || pm_freezing)
+ 		return schedule_timeout(jiffs);
+ 
+ 	secs = timeout / 1000;
+diff --git a/kernel/time/timer.c b/kernel/time/timer.c
+index 4ba3f6447a61..13034cc7c9a4 100644
+--- a/kernel/time/timer.c
++++ b/kernel/time/timer.c
+@@ -43,6 +43,7 @@
+ #include <linux/sched/debug.h>
+ #include <linux/slab.h>
+ #include <linux/compat.h>
++#include <linux/freezer.h>
+ 
+ #include <linux/uaccess.h>
+ #include <asm/unistd.h>
+@@ -2064,12 +2065,12 @@ void msleep(unsigned int msecs)
+ 	 * Use high resolution timers where the resolution of tick based
+ 	 * timers is inadequate.
+ 	 */
+-	if (jiffs < 5 && hrtimer_resolution < NSEC_PER_SEC / HZ) {
++	if (jiffs < 5 && hrtimer_resolution < NSEC_PER_SEC / HZ && !pm_freezing) {
+ 		while (msecs)
+ 			msecs = schedule_msec_hrtimeout_uninterruptible(msecs);
+ 		return;
+ 	}
+-	timeout = msecs_to_jiffies(msecs) + 1;
++	timeout = jiffs + 1;
+ 
+ 	while (timeout)
+ 		timeout = schedule_timeout_uninterruptible(timeout);
+@@ -2086,12 +2087,12 @@ unsigned long msleep_interruptible(unsigned int msecs)
+ 	int jiffs = msecs_to_jiffies(msecs);
+ 	unsigned long timeout;
+ 
+-	if (jiffs < 5 && hrtimer_resolution < NSEC_PER_SEC / HZ) {
++	if (jiffs < 5 && hrtimer_resolution < NSEC_PER_SEC / HZ && !pm_freezing) {
+ 		while (msecs && !signal_pending(current))
+ 			msecs = schedule_msec_hrtimeout_interruptible(msecs);
+ 		return msecs;
+ 	}
+-	timeout = msecs_to_jiffies(msecs) + 1;
++	timeout = jiffs + 1;
+ 
+ 	while (timeout && !signal_pending(current))
+ 		timeout = schedule_timeout_interruptible(timeout);
+-- 
+2.20.1
+