dracut/0057-base-init.sh-don-t-mount-run-with-noexec-if-the-init.patch
Harald Hoyer b386772815 dracut-044-75
- fix for systemd >= 230
- git snapshot
2016-06-07 10:24:44 +02:00

33 lines
1.2 KiB
Diff

From db7d61cff7f5a5be3a56cff39dc278f004b9c461 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Thu, 14 Apr 2016 14:56:37 +0200
Subject: [PATCH] base/init.sh: don't mount /run with noexec, if the initramfs
lives there
If the initramfs was built with prefix=/run/... /run can't be mounted
with noexec, otherwise no binary can be run.
Guard against it by looking where /bin/sh is really located.
---
modules.d/99base/init.sh | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/modules.d/99base/init.sh b/modules.d/99base/init.sh
index bd7ef70..a563393 100755
--- a/modules.d/99base/init.sh
+++ b/modules.d/99base/init.sh
@@ -64,7 +64,12 @@ fi
if ! ismounted /run; then
mkdir -m 0755 /newrun
- mount -t tmpfs -o mode=0755,noexec,nosuid,nodev,strictatime tmpfs /newrun >/dev/null
+ if ! str_starts "$(readlink -f /bin/sh)" "/run/"; then
+ mount -t tmpfs -o mode=0755,noexec,nosuid,nodev,strictatime tmpfs /newrun >/dev/null
+ else
+ # the initramfs binaries are located in /run, so don't mount it with noexec
+ mount -t tmpfs -o mode=0755,nosuid,nodev,strictatime tmpfs /newrun >/dev/null
+ fi
cp -a /run/* /newrun >/dev/null 2>&1
mount --move /newrun /run
rm -fr -- /newrun