From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michael Tremer <git@ipfire.org>
To: ipfire-scm@lists.ipfire.org
Subject: [git.ipfire.org] IPFire 2.x development tree branch, next, updated.
 65650ec69be35b5372a7fdca3e74deb3fd433327
Date: Fri, 05 Jul 2019 10:59:20 +0100
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This is an automated email from the git hooks/post-receive script. It was
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The branch, next has been updated
       via  65650ec69be35b5372a7fdca3e74deb3fd433327 (commit)
       via  ef21f3e49d2998eb4a223c05ef05f169ae99537a (commit)
      from  4cd82be05f21bcf49e38793e41730923a0107a0b (commit)

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- Log -----------------------------------------------------------------
commit 65650ec69be35b5372a7fdca3e74deb3fd433327
Author: Michael Tremer <michael.tremer(a)ipfire.org>
Date:   Thu Jul 4 11:21:42 2019 +0100

    core135: Ship updated sysctl.conf
   =20
    Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org>

commit ef21f3e49d2998eb4a223c05ef05f169ae99537a
Author: Peter M=C3=BCller <peter.mueller(a)ipfire.org>
Date:   Thu Jul 4 19:15:00 2019 +0000

    sysctl: improve KASLR effectiveness for mmap
   =20
    By feeding more random bits into mmap allocation, the
    effectiveness of KASLR will be improved, making attacks
    trying to bypass address randomisation more difficult.
   =20
    Changed sysctl values are:
   =20
    vm.mmap_rnd_bits =3D 32 (default: 28)
    vm.mmap_rnd_compat_bits =3D 16 (default: 8)
   =20
    Signed-off-by: Peter M=C3=BCller <peter.mueller(a)ipfire.org>
    Signed-off-by: Michael Tremer <michael.tremer(a)ipfire.org>

-----------------------------------------------------------------------

Summary of changes:
 config/etc/sysctl.conf                    | 4 ++++
 config/rootfiles/core/135/filelists/files | 1 +
 2 files changed, 5 insertions(+)

Difference in files:
diff --git a/config/etc/sysctl.conf b/config/etc/sysctl.conf
index 9a943fffa..5a67f1795 100644
--- a/config/etc/sysctl.conf
+++ b/config/etc/sysctl.conf
@@ -45,6 +45,10 @@ kernel.kptr_restrict =3D 2
 # Avoid kernel memory address exposures via dmesg.
 kernel.dmesg_restrict =3D 1
=20
+# Improve KASLR effectiveness for mmap
+vm.mmap_rnd_bits =3D 32
+vm.mmap_rnd_compat_bits =3D 16
+
 # Minimal preemption granularity for CPU-bound tasks:
 # (default: 1 msec#  (1 + ilog(ncpus)), units: nanoseconds)
 kernel.sched_min_granularity_ns =3D 10000000
diff --git a/config/rootfiles/core/135/filelists/files b/config/rootfiles/cor=
e/135/filelists/files
index 50bf616b0..7cf3741c5 100644
--- a/config/rootfiles/core/135/filelists/files
+++ b/config/rootfiles/core/135/filelists/files
@@ -7,3 +7,4 @@ etc/rc.d/init.d/cloud-init
 etc/rc.d/init.d/functions
 etc/rc.d/init.d/partresize
 etc/rc.d/init.d/unbound
+etc/sysctl.conf


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