From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Andy Lutomirski <luto@kernel.org>,
Borislav Petkov <bp@alien8.de>, Brian Gerst <brgerst@gmail.com>,
Denys Vlasenko <dvlasenk@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>
Subject: [PATCH 4.4 13/20] x86/asm/64: Clear AC on NMI entries
Date: Tue, 22 Aug 2017 12:09:56 -0700 [thread overview]
Message-ID: <20170822190915.895384291@linuxfoundation.org> (raw)
In-Reply-To: <20170822190915.345029476@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Andy Lutomirski <luto@kernel.org>
commit e93c17301ac55321fc18e0f8316e924e58a83c8c upstream.
This closes a hole in our SMAP implementation.
This patch comes from grsecurity. Good catch!
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/314cc9f294e8f14ed85485727556ad4f15bb1659.1502159503.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/entry/entry_64.S | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1190,6 +1190,8 @@ ENTRY(nmi)
* other IST entries.
*/
+ ASM_CLAC
+
/* Use %rdx as our temp variable throughout */
pushq %rdx
next prev parent reply other threads:[~2017-08-22 19:10 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-22 19:09 [PATCH 4.4 00/20] 4.4.84-stable review Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 01/20] netfilter: nf_ct_ext: fix possible panic after nf_ct_extend_unregister Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 02/20] audit: Fix use after free in audit_remove_watch_rule() Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 03/20] parisc: pci memory bar assignment fails with 64bit kernels on dino/cujo Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 04/20] crypto: x86/sha1 - Fix reads beyond the number of blocks passed Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 05/20] Input: elan_i2c - add ELAN0608 to the ACPI table Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 06/20] Input: elan_i2c - Add antoher Lenovo ACPI ID for upcoming Lenovo NB Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 07/20] ALSA: seq: 2nd attempt at fixing race creating a queue Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 08/20] ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 09/20] ALSA: usb-audio: Add mute TLV for playback volumes on C-Media devices Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 10/20] mm/mempolicy: fix use after free when calling get_mempolicy Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 11/20] mm: revert x86_64 and arm64 ELF_ET_DYN_BASE base changes Greg Kroah-Hartman
2017-08-22 19:09 ` Greg Kroah-Hartman [this message]
2017-08-22 19:09 ` [PATCH 4.4 14/20] irqchip/atmel-aic: Fix unbalanced of_node_put() in aic_common_irq_fixup() Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 15/20] irqchip/atmel-aic: Fix unbalanced refcount in aic_common_rtc_irq_fixup() Greg Kroah-Hartman
2017-08-22 19:09 ` [PATCH 4.4 16/20] Sanitize move_pages() permission checks Greg Kroah-Hartman
2017-08-22 19:10 ` [PATCH 4.4 17/20] pids: make task_tgid_nr_ns() safe Greg Kroah-Hartman
2017-08-22 19:10 ` [PATCH 4.4 18/20] perf/x86: Fix LBR related crashes on Intel Atom Greg Kroah-Hartman
2017-08-22 19:10 ` [PATCH 4.4 19/20] usb: optimize acpi companion search for usb port devices Greg Kroah-Hartman
2017-08-22 19:10 ` [PATCH 4.4 20/20] usb: qmi_wwan: add D-Link DWM-222 device ID Greg Kroah-Hartman
2017-08-23 0:36 ` [PATCH 4.4 00/20] 4.4.84-stable review Shuah Khan
2017-08-27 16:57 ` Guenter Roeck
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