From: git@ipfire.org
To: ipfire-scm@lists.ipfire.org
Subject: [git.ipfire.org] IPFire 2.x development tree branch, master, updated. 69f3684cf5337d34963b1ee6a5c8ac2072c6eaf6
Date: Mon, 22 Aug 2016 06:27:35 +0100 [thread overview]
Message-ID: <20160822052736.AD1EA1078E81@git01.ipfire.org> (raw)
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This is an automated email from the git hooks/post-receive script. It was
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The branch, master has been updated
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from 66cb9ec42bba14237972f3e7e4532eb1d936100d (commit)
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- Log -----------------------------------------------------------------
commit 69f3684cf5337d34963b1ee6a5c8ac2072c6eaf6
Author: Arne Fitzenreiter <arne_f(a)ipfire.org>
Date: Sun Aug 21 22:40:12 2016 +0200
kernel: fix grsecurity patch.
Signed-off-by: Arne Fitzenreiter <arne_f(a)ipfire.org>
-----------------------------------------------------------------------
Summary of changes:
lfs/linux | 1 +
.../linux-3.14.77-gsrec_tcp_input_access_once_rw.patch | 18 ++++++++++++++++++
2 files changed, 19 insertions(+)
create mode 100644 src/patches/linux-3.14.77-gsrec_tcp_input_access_once_rw.patch
Difference in files:
diff --git a/lfs/linux b/lfs/linux
index 5c37a4b..e365be6 100644
--- a/lfs/linux
+++ b/lfs/linux
@@ -132,6 +132,7 @@ ifneq "$(KCFG)" "-headers"
cd $(DIR_APP) && xz -c -d $(DIR_DL)/$(GRS_PATCHES) | patch -Np1
cd $(DIR_APP) && rm localversion-grsec
cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-3.7-disable-compat_vdso.patch
+ cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-3.14.77-gsrec_tcp_input_access_once_rw.patch
endif
# DVB Patches
diff --git a/src/patches/linux-3.14.77-gsrec_tcp_input_access_once_rw.patch b/src/patches/linux-3.14.77-gsrec_tcp_input_access_once_rw.patch
new file mode 100644
index 0000000..19d0448
--- /dev/null
+++ b/src/patches/linux-3.14.77-gsrec_tcp_input_access_once_rw.patch
@@ -0,0 +1,18 @@
+diff -Naur linux-3.14.77.org/net/ipv4/tcp_input.c linux-3.14.77/net/ipv4/tcp_input.c
+--- linux-3.14.77.org/net/ipv4/tcp_input.c 2016-08-21 19:58:45.000000000 +0200
++++ linux-3.14.77/net/ipv4/tcp_input.c 2016-08-21 21:11:24.336757369 +0200
+@@ -3299,12 +3299,12 @@
+ u32 half = (sysctl_tcp_challenge_ack_limit + 1) >> 1;
+
+ challenge_timestamp = now;
+- ACCESS_ONCE(challenge_count) = half +
++ ACCESS_ONCE_RW(challenge_count) = half +
+ prandom_u32_max(sysctl_tcp_challenge_ack_limit);
+ }
+ count = ACCESS_ONCE(challenge_count);
+ if (count > 0) {
+- ACCESS_ONCE(challenge_count) = count - 1;
++ ACCESS_ONCE_RW(challenge_count) = count - 1;
+ NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPCHALLENGEACK);
+ tcp_send_ack(sk);
+ }
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IPFire 2.x development tree
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