update to 4.8.14-1

5 files changed, 156 insertions, 101 deletions

diff --git a/.SRCINFO b/.SRCINFO
index 82a03a25ef05..8e5f28d28d96 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,8 +1,8 @@
 # Generated by mksrcinfo v8
-# Thu Dec  8 19:42:10 UTC 2016
+# Mon Dec 19 15:48:29 UTC 2016
 pkgbase = linux-covolunablu-gaming
-	pkgver = 4.8.12
-	pkgrel = 2
+	pkgver = 4.8.14
+	pkgrel = 1
 	url = https://www.kernel.org/
 	arch = i686
 	arch = x86_64
@@ -17,14 +17,15 @@ pkgbase = linux-covolunablu-gaming
 	options = !strip
 	source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.8.tar.xz
 	source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.8.tar.sign
-	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.8.12.xz
-	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.8.12.sign
+	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.8.14.xz
+	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.8.14.sign
 	source = config
 	source = config.x86_64
 	source = 99-linux.hook
 	source = linux.preset
 	source = change-default-console-loglevel.patch
-	source = fix_race_condition_in_packet_set_ring.diff
+	source = net_handle_no_dst_on_skb_in_icmp6_send.patch
+	source = 0001-x86-fpu-Fix-invalid-FPU-ptrace-state-after-execve.patch
 	source = http://algo.ing.unimo.it/people/paolo/disk_sched/patches/4.8.0-v8r4/0001-block-cgroups-kconfig-build-bits-for-BFQ-v7r11-4.8.0.patch
 	source = http://algo.ing.unimo.it/people/paolo/disk_sched/patches/4.8.0-v8r4/0002-block-introduce-the-BFQ-v7r11-I-O-sched-to-be-ported.patch
 	source = http://algo.ing.unimo.it/people/paolo/disk_sched/patches/4.8.0-v8r4/0003-block-bfq-add-Early-Queue-Merge-EQM-to-BFQ-v7r11-to-.patch
@@ -32,14 +33,15 @@ pkgbase = linux-covolunablu-gaming
 	source = https://raw.githubusercontent.com/ValveSoftware/steamos_kernel/376295e81ec217038c5467424ab317906ea3b3e3/drivers/input/joystick/xpad.c
 	sha256sums = 3e9150065f193d3d94bcf46a1fe9f033c7ef7122ab71d75a7fb5a2f0c9a7e11a
 	sha256sums = SKIP
-	sha256sums = 9a498761be20c10db6b30fac095e0591173d4046c19585bcdd7a72ca8503eb87
+	sha256sums = efa9b7d87a6ca67426e3d7f206ac987eb7cb31602ad2011e81060626de790fcb
 	sha256sums = SKIP
 	sha256sums = f105551388ad00732eecbdb0037092597482970fe88af2634916ade8674410c7
 	sha256sums = d85f8d4e7c7672ba9bb25bcb95e8442acd9b4d784161b292c27b9f5cee95bcd7
 	sha256sums = 834bd254b56ab71d73f59b3221f056c72f559553c04718e350ab2a3e2991afe0
 	sha256sums = ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65
 	sha256sums = 1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99
-	sha256sums = ad1ee95f906f88d31fcdb9273cd08e02e8eda177449f0c98dc1bff8cbf1483c2
+	sha256sums = b595a1588bafb3d732841cd1b73633970706914f57f2d215c9f1494212d13989
+	sha256sums = 3e955e0f1aae96bb6c1507236adc952640c9bd0a134b9995ab92106a33dc02d9
 	sha256sums = 1dabd969b18b7e09e2ffeffe4c2430dbc26e5df9868563d54ca95f45c690262f
 	sha256sums = c8d17a7893d5780fd0c90311470160dcc842b81621b30671150e2e3224be86d2
 	sha256sums = e47ea5b1c2f20cfade4e6a85bff1320dac84ac638e48ef4eec7285fe9e1e1def
diff --git a/0001-x86-fpu-Fix-invalid-FPU-ptrace-state-after-execve.patch b/0001-x86-fpu-Fix-invalid-FPU-ptrace-state-after-execve.patch
new file mode 100644
index 000000000000..8cef8463520f
--- /dev/null
+++ b/0001-x86-fpu-Fix-invalid-FPU-ptrace-state-after-execve.patch
@@ -0,0 +1,65 @@
+From 885bad1e5f32bbf30787ead9578f8174047e6904 Mon Sep 17 00:00:00 2001
+From: Yu-cheng Yu <yu-cheng.yu@intel.com>
+Date: Thu, 17 Nov 2016 09:11:35 -0800
+Subject: [PATCH] x86/fpu: Fix invalid FPU ptrace state after execve()
+
+commit b22cbe404a9cc3c7949e380fa1861e31934c8978 upstream.
+
+Robert O'Callahan reported that after an execve PTRACE_GETREGSET
+NT_X86_XSTATE continues to return the pre-exec register values
+until the exec'ed task modifies FPU state.
+
+The test code is at:
+
+  https://bugzilla.redhat.com/attachment.cgi?id=1164286.
+
+What is happening is fpu__clear() does not properly clear fpstate.
+Fix it by doing just that.
+
+Reported-by: Robert O'Callahan <robert@ocallahan.org>
+Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
+Cc: Andy Lutomirski <luto@kernel.org>
+Cc: Borislav Petkov <bp@suse.de>
+Cc: David Hansen <dave.hansen@linux.intel.com>
+Cc: Fenghua Yu <fenghua.yu@intel.com>
+Cc: Linus Torvalds <torvalds@linux-foundation.org>
+Cc: Peter Zijlstra <peterz@infradead.org>
+Cc: Ravi V. Shankar <ravi.v.shankar@intel.com>
+Cc: Thomas Gleixner <tglx@linutronix.de>
+Link: http://lkml.kernel.org/r/1479402695-6553-1-git-send-email-yu-cheng.yu@intel.com
+Signed-off-by: Ingo Molnar <mingo@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/x86/kernel/fpu/core.c | 16 ++++++++--------
+ 1 file changed, 8 insertions(+), 8 deletions(-)
+
+diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
+index 3fc03a09a93b1710..c289e2f4a6e5b464 100644
+--- a/arch/x86/kernel/fpu/core.c
++++ b/arch/x86/kernel/fpu/core.c
+@@ -517,14 +517,14 @@ void fpu__clear(struct fpu *fpu)
+ {
+ 	WARN_ON_FPU(fpu != &current->thread.fpu); /* Almost certainly an anomaly */
+ 
+-	if (!use_eager_fpu() || !static_cpu_has(X86_FEATURE_FPU)) {
+-		/* FPU state will be reallocated lazily at the first use. */
+-		fpu__drop(fpu);
+-	} else {
+-		if (!fpu->fpstate_active) {
+-			fpu__activate_curr(fpu);
+-			user_fpu_begin();
+-		}
++	fpu__drop(fpu);
++
++	/*
++	 * Make sure fpstate is cleared and initialized.
++	 */
++	if (static_cpu_has(X86_FEATURE_FPU)) {
++		fpu__activate_curr(fpu);
++		user_fpu_begin();
+ 		copy_init_fpstate_to_fpregs();
+ 	}
+ }
+-- 
+2.10.2
+
diff --git a/PKGBUILD b/PKGBUILD
index 6480e9aeaab3..9dac0bd71c7d 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,8 +1,8 @@
 #pkgbase=linux               # Build stock -ARCH kernel
 pkgbase=linux-covolunablu-gaming       # Build kernel with a different name
 _srcname=linux-4.8
-pkgver=4.8.12
-pkgrel=2
+pkgver=4.8.14
+pkgrel=1
 arch=('i686' 'x86_64')
 url="https://www.kernel.org/"
 license=('GPL2')
@@ -26,7 +26,8 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         # standard config files for mkinitcpio ramdisk
         'linux.preset'
         'change-default-console-loglevel.patch'
-        'fix_race_condition_in_packet_set_ring.diff'
+        'net_handle_no_dst_on_skb_in_icmp6_send.patch'
+        '0001-x86-fpu-Fix-invalid-FPU-ptrace-state-after-execve.patch'
         'http://algo.ing.unimo.it/people/paolo/disk_sched/patches/4.8.0-v8r4/0001-block-cgroups-kconfig-build-bits-for-BFQ-v7r11-4.8.0.patch'
         'http://algo.ing.unimo.it/people/paolo/disk_sched/patches/4.8.0-v8r4/0002-block-introduce-the-BFQ-v7r11-I-O-sched-to-be-ported.patch'
         'http://algo.ing.unimo.it/people/paolo/disk_sched/patches/4.8.0-v8r4/0003-block-bfq-add-Early-Queue-Merge-EQM-to-BFQ-v7r11-to-.patch'
@@ -35,21 +36,21 @@ source=("https://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
 
 sha256sums=('3e9150065f193d3d94bcf46a1fe9f033c7ef7122ab71d75a7fb5a2f0c9a7e11a'
             'SKIP'
-            '9a498761be20c10db6b30fac095e0591173d4046c19585bcdd7a72ca8503eb87'
+            'efa9b7d87a6ca67426e3d7f206ac987eb7cb31602ad2011e81060626de790fcb'
             'SKIP'
             'f105551388ad00732eecbdb0037092597482970fe88af2634916ade8674410c7'
             'd85f8d4e7c7672ba9bb25bcb95e8442acd9b4d784161b292c27b9f5cee95bcd7'
             '834bd254b56ab71d73f59b3221f056c72f559553c04718e350ab2a3e2991afe0'
             'ad6344badc91ad0630caacde83f7f9b97276f80d26a20619a87952be65492c65'
             '1256b241cd477b265a3c2d64bdc19ffe3c9bbcee82ea3994c590c2c76e767d99'
-            'ad1ee95f906f88d31fcdb9273cd08e02e8eda177449f0c98dc1bff8cbf1483c2'
+            'b595a1588bafb3d732841cd1b73633970706914f57f2d215c9f1494212d13989'
+            '3e955e0f1aae96bb6c1507236adc952640c9bd0a134b9995ab92106a33dc02d9'
             '1dabd969b18b7e09e2ffeffe4c2430dbc26e5df9868563d54ca95f45c690262f'
             'c8d17a7893d5780fd0c90311470160dcc842b81621b30671150e2e3224be86d2'
             'e47ea5b1c2f20cfade4e6a85bff1320dac84ac638e48ef4eec7285fe9e1e1def'
             'c3c96e304aef378f0cc6e1fb18eeabe176e6ba918d13060c105f3d8cabc85f59'
             'b40f90abeaec479cadf189fe185353cd70cde76349433ab618b9e776ab31133f')
 
-
 validpgpkeys=(
               'ABAF11C65A2970B130ABE3C479BE3E4300411886' # Linus Torvalds
               '647F28654894E3BD457199BE38DBBDC86092693E' # Greg Kroah-Hartman
@@ -63,9 +64,12 @@ prepare() {
   # add upstream patch
   patch -p1 -i "${srcdir}/patch-${pkgver}"
 
-  # fix a race condition that allows to gain root
-  # https://marc.info/?l=linux-netdev&m=148054660230570&w=2
-  patch -p1 -i "${srcdir}/fix_race_condition_in_packet_set_ring.diff"
+  # https://bugzilla.kernel.org/show_bug.cgi?id=189851
+  patch -p1 -i "${srcdir}/net_handle_no_dst_on_skb_in_icmp6_send.patch"
+
+  # Revert a commit that causes memory corruption in i686 chroots on our
+  # build server ("valgrind bash" immediately crashes)
+  patch -Rp1 -i "${srcdir}/0001-x86-fpu-Fix-invalid-FPU-ptrace-state-after-execve.patch"
 
   # add latest fixes from stable queue, if needed
   # http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git
diff --git a/fix_race_condition_in_packet_set_ring.diff b/fix_race_condition_in_packet_set_ring.diff
deleted file mode 100644
index 12048f611d1a..000000000000
--- a/fix_race_condition_in_packet_set_ring.diff
+++ /dev/null
@@ -1,84 +0,0 @@
-From: Philip Pettersson <philip.pettersson@gmail.com>
-
-When packet_set_ring creates a ring buffer it will initialize a
-struct timer_list if the packet version is TPACKET_V3. This value
-can then be raced by a different thread calling setsockopt to
-set the version to TPACKET_V1 before packet_set_ring has finished.
-
-This leads to a use-after-free on a function pointer in the
-struct timer_list when the socket is closed as the previously
-initialized timer will not be deleted.
-
-The bug is fixed by taking lock_sock(sk) in packet_setsockopt when
-changing the packet version while also taking the lock at the start
-of packet_set_ring.
-
-Fixes: f6fb8f100b80 ("af-packet: TPACKET_V3 flexible buffer implementation.")
-Signed-off-by: Philip Pettersson <philip.pettersson@gmail.com>
-Signed-off-by: Eric Dumazet <edumazet@google.com>
----
- net/packet/af_packet.c | 18 ++++++++++++------
- 1 file changed, 12 insertions(+), 6 deletions(-)
-
-diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
-index d2238b204691b8e4f2e3acb9bc167b553ba32d50..dd2332390c45bbff7c3fc5d259453f2e1ca352bf 100644
---- a/net/packet/af_packet.c
-+++ b/net/packet/af_packet.c
-@@ -3648,19 +3648,25 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
- 
- 		if (optlen != sizeof(val))
- 			return -EINVAL;
--		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec)
--			return -EBUSY;
- 		if (copy_from_user(&val, optval, sizeof(val)))
- 			return -EFAULT;
- 		switch (val) {
- 		case TPACKET_V1:
- 		case TPACKET_V2:
- 		case TPACKET_V3:
--			po->tp_version = val;
--			return 0;
-+			break;
- 		default:
- 			return -EINVAL;
- 		}
-+		lock_sock(sk);
-+		if (po->rx_ring.pg_vec || po->tx_ring.pg_vec) {
-+			ret = -EBUSY;
-+		} else {
-+			po->tp_version = val;
-+			ret = 0;
-+		}
-+		release_sock(sk);
-+		return ret;
- 	}
- 	case PACKET_RESERVE:
- 	{
-@@ -4164,6 +4170,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
- 	/* Added to avoid minimal code churn */
- 	struct tpacket_req *req = &req_u->req;
- 
-+	lock_sock(sk);
- 	/* Opening a Tx-ring is NOT supported in TPACKET_V3 */
- 	if (!closing && tx_ring && (po->tp_version > TPACKET_V2)) {
- 		net_warn_ratelimited("Tx-ring is not supported.\n");
-@@ -4245,7 +4252,6 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
- 			goto out;
- 	}
- 
--	lock_sock(sk);
- 
- 	/* Detach socket from network */
- 	spin_lock(&po->bind_lock);
-@@ -4294,11 +4300,11 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
- 		if (!tx_ring)
- 			prb_shutdown_retire_blk_timer(po, rb_queue);
- 	}
--	release_sock(sk);
- 
- 	if (pg_vec)
- 		free_pg_vec(pg_vec, order, req->tp_block_nr);
- out:
-+	release_sock(sk);
- 	return err;
- }
diff --git a/net_handle_no_dst_on_skb_in_icmp6_send.patch b/net_handle_no_dst_on_skb_in_icmp6_send.patch
new file mode 100644
index 000000000000..06448a90affe
--- /dev/null
+++ b/net_handle_no_dst_on_skb_in_icmp6_send.patch
@@ -0,0 +1,68 @@
+From 79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 Mon Sep 17 00:00:00 2001
+From: David Ahern <dsa@cumulusnetworks.com>
+Date: Sun, 27 Nov 2016 18:52:53 -0800
+Subject: [PATCH] net: handle no dst on skb in icmp6_send
+
+Andrey reported the following while fuzzing the kernel with syzkaller:
+
+kasan: CONFIG_KASAN_INLINE enabled
+kasan: GPF could be caused by NULL-ptr deref or user memory access
+general protection fault: 0000 [#1] SMP KASAN
+Modules linked in:
+CPU: 0 PID: 3859 Comm: a.out Not tainted 4.9.0-rc6+ #429
+Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
+task: ffff8800666d4200 task.stack: ffff880067348000
+RIP: 0010:[<ffffffff833617ec>]  [<ffffffff833617ec>]
+icmp6_send+0x5fc/0x1e30 net/ipv6/icmp.c:451
+RSP: 0018:ffff88006734f2c0  EFLAGS: 00010206
+RAX: ffff8800666d4200 RBX: 0000000000000000 RCX: 0000000000000000
+RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000000018
+RBP: ffff88006734f630 R08: ffff880064138418 R09: 0000000000000003
+R10: dffffc0000000000 R11: 0000000000000005 R12: 0000000000000000
+R13: ffffffff84e7e200 R14: ffff880064138484 R15: ffff8800641383c0
+FS:  00007fb3887a07c0(0000) GS:ffff88006cc00000(0000) knlGS:0000000000000000
+CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
+CR2: 0000000020000000 CR3: 000000006b040000 CR4: 00000000000006f0
+Stack:
+ ffff8800666d4200 ffff8800666d49f8 ffff8800666d4200 ffffffff84c02460
+ ffff8800666d4a1a 1ffff1000ccdaa2f ffff88006734f498 0000000000000046
+ ffff88006734f440 ffffffff832f4269 ffff880064ba7456 0000000000000000
+Call Trace:
+ [<ffffffff83364ddc>] icmpv6_param_prob+0x2c/0x40 net/ipv6/icmp.c:557
+ [<     inline     >] ip6_tlvopt_unknown net/ipv6/exthdrs.c:88
+ [<ffffffff83394405>] ip6_parse_tlv+0x555/0x670 net/ipv6/exthdrs.c:157
+ [<ffffffff8339a759>] ipv6_parse_hopopts+0x199/0x460 net/ipv6/exthdrs.c:663
+ [<ffffffff832ee773>] ipv6_rcv+0xfa3/0x1dc0 net/ipv6/ip6_input.c:191
+ ...
+
+icmp6_send / icmpv6_send is invoked for both rx and tx paths. In both
+cases the dst->dev should be preferred for determining the L3 domain
+if the dst has been set on the skb. Fallback to the skb->dev if it has
+not. This covers the case reported here where icmp6_send is invoked on
+Rx before the route lookup.
+
+Fixes: 5d41ce29e ("net: icmp6_send should use dst dev to determine L3 domain")
+Reported-by: Andrey Konovalov <andreyknvl@google.com>
+Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ net/ipv6/icmp.c | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
+index 7370ad2..2772004 100644
+--- a/net/ipv6/icmp.c
++++ b/net/ipv6/icmp.c
+@@ -447,8 +447,10 @@ static void icmp6_send(struct sk_buff *skb, u8 type, u8 code, __u32 info,
+ 
+ 	if (__ipv6_addr_needs_scope_id(addr_type))
+ 		iif = skb->dev->ifindex;
+-	else
+-		iif = l3mdev_master_ifindex(skb_dst(skb)->dev);
++	else {
++		dst = skb_dst(skb);
++		iif = l3mdev_master_ifindex(dst ? dst->dev : skb->dev);
++	}
+ 
+ 	/*
+ 	 *	Must not send error if the source does not uniquely