Linux v4.8.10
This commit is contained in:
Justin M. Forbes
parent
f94c0952d6
commit
94716073b3
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From 9f692cbe4a01dd9e3c3e954ec6b59662b68f9ce4 Mon Sep 17 00:00:00 2001
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From: Laura Abbott <labbott@redhat.com>
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Date: Fri, 9 Sep 2016 10:19:02 -0700
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Subject: [PATCH] cpupower: Correct return type of cpu_power_is_cpu_online in
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cpufreq
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To: Thomas Renninger <trenn@suse.com>
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Cc: linux-pm@vger.kernel.org
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Cc: linux-kernel@vger.kernel.org
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When converting to a shared library in ac5a181d065d ("cpupower: Add
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cpuidle parts into library"), cpu_freq_cpu_exists was converted to
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cpupower_is_cpu_online. cpu_req_cpu_exists returned 0 on success and
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-ENOSYS on failure whereas cpupower_is_cpu_online returns 1 on success.
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Check for the correct return value in cpufreq-set.
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See https://bugzilla.redhat.com/show_bug.cgi?id=1374212
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Fixes: ac5a181d065d ("cpupower: Add cpuidle parts into library")
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Reported-by: Julian Seward <jseward@acm.org>
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Signed-off-by: Laura Abbott <labbott@redhat.com>
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---
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tools/power/cpupower/utils/cpufreq-set.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/tools/power/cpupower/utils/cpufreq-set.c b/tools/power/cpupower/utils/cpufreq-set.c
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index b4bf769..8971d71 100644
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--- a/tools/power/cpupower/utils/cpufreq-set.c
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+++ b/tools/power/cpupower/utils/cpufreq-set.c
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@@ -296,7 +296,7 @@ int cmd_freq_set(int argc, char **argv)
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struct cpufreq_affected_cpus *cpus;
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if (!bitmask_isbitset(cpus_chosen, cpu) ||
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- cpupower_is_cpu_online(cpu))
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+ cpupower_is_cpu_online(cpu) != 1)
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continue;
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cpus = cpufreq_get_related_cpus(cpu);
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@@ -316,7 +316,7 @@ int cmd_freq_set(int argc, char **argv)
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cpu <= bitmask_last(cpus_chosen); cpu++) {
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if (!bitmask_isbitset(cpus_chosen, cpu) ||
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- cpupower_is_cpu_online(cpu))
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+ cpupower_is_cpu_online(cpu) != 1)
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continue;
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if (cpupower_is_cpu_online(cpu) != 1)
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--
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2.10.0
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@ -1,105 +0,0 @@
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From ac6e780070e30e4c35bd395acfe9191e6268bdd3 Mon Sep 17 00:00:00 2001
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From: Eric Dumazet <edumazet@google.com>
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Date: Thu, 10 Nov 2016 13:12:35 -0800
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Subject: [PATCH] tcp: take care of truncations done by sk_filter()
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With syzkaller help, Marco Grassi found a bug in TCP stack,
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crashing in tcp_collapse()
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Root cause is that sk_filter() can truncate the incoming skb,
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but TCP stack was not really expecting this to happen.
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It probably was expecting a simple DROP or ACCEPT behavior.
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We first need to make sure no part of TCP header could be removed.
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Then we need to adjust TCP_SKB_CB(skb)->end_seq
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Many thanks to syzkaller team and Marco for giving us a reproducer.
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Signed-off-by: Eric Dumazet <edumazet@google.com>
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Reported-by: Marco Grassi <marco.gra@gmail.com>
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Reported-by: Vladis Dronov <vdronov@redhat.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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include/net/tcp.h | 1 +
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net/ipv4/tcp_ipv4.c | 19 ++++++++++++++++++-
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net/ipv6/tcp_ipv6.c | 6 ++++--
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3 files changed, 23 insertions(+), 3 deletions(-)
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diff --git a/include/net/tcp.h b/include/net/tcp.h
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index 304a8e1..123979f 100644
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--- a/include/net/tcp.h
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+++ b/include/net/tcp.h
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@@ -1220,6 +1220,7 @@ static inline void tcp_prequeue_init(struct tcp_sock *tp)
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}
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bool tcp_prequeue(struct sock *sk, struct sk_buff *skb);
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+int tcp_filter(struct sock *sk, struct sk_buff *skb);
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#undef STATE_TRACE
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diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
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index 61b7be3..2259114 100644
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--- a/net/ipv4/tcp_ipv4.c
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+++ b/net/ipv4/tcp_ipv4.c
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@@ -1564,6 +1564,21 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
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}
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EXPORT_SYMBOL(tcp_prequeue);
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+int tcp_filter(struct sock *sk, struct sk_buff *skb)
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+{
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+ struct tcphdr *th = (struct tcphdr *)skb->data;
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+ unsigned int eaten = skb->len;
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+ int err;
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+
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+ err = sk_filter_trim_cap(sk, skb, th->doff * 4);
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+ if (!err) {
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+ eaten -= skb->len;
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+ TCP_SKB_CB(skb)->end_seq -= eaten;
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+ }
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+ return err;
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+}
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+EXPORT_SYMBOL(tcp_filter);
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+
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/*
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* From tcp_input.c
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*/
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@@ -1676,8 +1691,10 @@ int tcp_v4_rcv(struct sk_buff *skb)
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nf_reset(skb);
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- if (sk_filter(sk, skb))
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+ if (tcp_filter(sk, skb))
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goto discard_and_relse;
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+ th = (const struct tcphdr *)skb->data;
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+ iph = ip_hdr(skb);
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skb->dev = NULL;
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diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
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index 6ca23c2..b9f1fee 100644
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--- a/net/ipv6/tcp_ipv6.c
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+++ b/net/ipv6/tcp_ipv6.c
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@@ -1229,7 +1229,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
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if (skb->protocol == htons(ETH_P_IP))
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return tcp_v4_do_rcv(sk, skb);
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- if (sk_filter(sk, skb))
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+ if (tcp_filter(sk, skb))
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goto discard;
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/*
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@@ -1457,8 +1457,10 @@ static int tcp_v6_rcv(struct sk_buff *skb)
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if (tcp_v6_inbound_md5_hash(sk, skb))
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goto discard_and_relse;
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- if (sk_filter(sk, skb))
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+ if (tcp_filter(sk, skb))
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goto discard_and_relse;
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+ th = (const struct tcphdr *)skb->data;
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+ hdr = ipv6_hdr(skb);
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skb->dev = NULL;
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--
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2.7.4
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11
kernel.spec
11
kernel.spec
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@ -54,7 +54,7 @@ Summary: The Linux kernel
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%if 0%{?released_kernel}
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# Do we have a -stable update to apply?
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%define stable_update 8
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%define stable_update 10
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# Set rpm version accordingly
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%if 0%{?stable_update}
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%define stablerev %{stable_update}
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@ -625,9 +625,6 @@ Patch846: security-selinux-overlayfs-support.patch
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#rhbz 1360688
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Patch847: rc-core-fix-repeat-events.patch
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#rhbz 1374212
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Patch848: 0001-cpupower-Correct-return-type-of-cpu_power_is_cpu_onl.patch
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#ongoing complaint, full discussion delayed until ksummit/plumbers
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Patch849: 0001-iio-Use-event-header-from-kernel-tree.patch
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@ -646,9 +643,6 @@ Patch854: nouveau-add-maxwell-to-backlight-init.patch
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#rhbz 1385823
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Patch855: 0001-platform-x86-ideapad-laptop-Add-Lenovo-Yoga-910-13IK.patch
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#CVE-2016-8645 rhbz 1393904 1393908
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Patch856: 0001-tcp-take-care-of-truncations-done-by-sk_filter.patch
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# END OF PATCH DEFINITIONS
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%endif
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@ -2185,6 +2179,9 @@ fi
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#
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#
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%changelog
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* Mon Nov 21 2016 Justin M. Forbes <jforbes@fedoraproject.org> - 4.8.10-300
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- Linux v4.8.10
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* Sun Nov 20 2016 Peter Robinson <pbrobinson@fedoraproject.org>
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- Minor ARM config tweaks
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