From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, KarimAllah Ahmed <karahmed@amazon.de>,
David Woodhouse <dwmw@amazon.co.uk>,
Thomas Gleixner <tglx@linutronix.de>,
Darren Kenny <darren.kenny@oracle.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Jim Mattson <jmattson@google.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Andi Kleen <ak@linux.intel.com>,
Jun Nakajima <jun.nakajima@intel.com>,
kvm@vger.kernel.org, Dave Hansen <dave.hansen@intel.com>,
Tim Chen <tim.c.chen@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>,
Asit Mallick <asit.k.mallick@intel.com>,
Arjan Van De Ven <arjan.van.de.ven@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Dan Williams <dan.j.williams@intel.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Ashok Raj <ashok.raj@intel.com>,
Ben Hutchings <ben.hutchings@codethink.co.uk>
Subject: [PATCH 4.4 48/88] KVM/VMX: Allow direct access to MSR_IA32_SPEC_CTRL
Date: Fri, 14 Dec 2018 13:00:22 +0100 [thread overview]
Message-ID: <20181214115706.203588912@linuxfoundation.org> (raw)
In-Reply-To: <20181214115702.151309521@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: KarimAllah Ahmed <karahmed@amazon.de>
commit d28b387fb74da95d69d2615732f50cceb38e9a4d upstream.
[ Based on a patch from Ashok Raj <ashok.raj@intel.com> ]
Add direct access to MSR_IA32_SPEC_CTRL for guests. This is needed for
guests that will only mitigate Spectre V2 through IBRS+IBPB and will not
be using a retpoline+IBPB based approach.
To avoid the overhead of saving and restoring the MSR_IA32_SPEC_CTRL for
guests that do not actually use the MSR, only start saving and restoring
when a non-zero is written to it.
No attempt is made to handle STIBP here, intentionally. Filtering STIBP
may be added in a future patch, which may require trapping all writes
if we don't want to pass it through directly to the guest.
[dwmw2: Clean up CPUID bits, save/restore manually, handle reset]
Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jun Nakajima <jun.nakajima@intel.com>
Cc: kvm@vger.kernel.org
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Asit Mallick <asit.k.mallick@intel.com>
Cc: Arjan Van De Ven <arjan.van.de.ven@intel.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ashok Raj <ashok.raj@intel.com>
Link: https://lkml.kernel.org/r/1517522386-18410-5-git-send-email-karahmed@amazon.de
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kvm/cpuid.c | 8 ++-
arch/x86/kvm/cpuid.h | 11 +++++
arch/x86/kvm/vmx.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++-
arch/x86/kvm/x86.c | 2
4 files changed, 118 insertions(+), 6 deletions(-)
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -343,7 +343,7 @@ static inline int __do_cpuid_ent(struct
/* cpuid 0x80000008.ebx */
const u32 kvm_cpuid_8000_0008_ebx_x86_features =
- F(IBPB);
+ F(IBPB) | F(IBRS);
/* cpuid 0xC0000001.edx */
const u32 kvm_supported_word5_x86_features =
@@ -364,7 +364,7 @@ static inline int __do_cpuid_ent(struct
/* cpuid 7.0.edx*/
const u32 kvm_cpuid_7_0_edx_x86_features =
- F(ARCH_CAPABILITIES);
+ F(SPEC_CTRL) | F(ARCH_CAPABILITIES);
/* all calls to cpuid_count() should be made on the same cpu */
get_cpu();
@@ -595,9 +595,11 @@ static inline int __do_cpuid_ent(struct
g_phys_as = phys_as;
entry->eax = g_phys_as | (virt_as << 8);
entry->edx = 0;
- /* IBPB isn't necessarily present in hardware cpuid */
+ /* IBRS and IBPB aren't necessarily present in hardware cpuid */
if (boot_cpu_has(X86_FEATURE_IBPB))
entry->ebx |= F(IBPB);
+ if (boot_cpu_has(X86_FEATURE_IBRS))
+ entry->ebx |= F(IBRS);
entry->ebx &= kvm_cpuid_8000_0008_ebx_x86_features;
cpuid_mask(&entry->ebx, CPUID_8000_0008_EBX);
break;
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -170,6 +170,17 @@ static inline bool guest_cpuid_has_ibpb(
return best && (best->edx & bit(X86_FEATURE_SPEC_CTRL));
}
+static inline bool guest_cpuid_has_ibrs(struct kvm_vcpu *vcpu)
+{
+ struct kvm_cpuid_entry2 *best;
+
+ best = kvm_find_cpuid_entry(vcpu, 0x80000008, 0);
+ if (best && (best->ebx & bit(X86_FEATURE_IBRS)))
+ return true;
+ best = kvm_find_cpuid_entry(vcpu, 7, 0);
+ return best && (best->edx & bit(X86_FEATURE_SPEC_CTRL));
+}
+
static inline bool guest_cpuid_has_arch_capabilities(struct kvm_vcpu *vcpu)
{
struct kvm_cpuid_entry2 *best;
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -546,6 +546,7 @@ struct vcpu_vmx {
#endif
u64 arch_capabilities;
+ u64 spec_ctrl;
u32 vm_entry_controls_shadow;
u32 vm_exit_controls_shadow;
@@ -1693,6 +1694,29 @@ static void update_exception_bitmap(stru
}
/*
+ * Check if MSR is intercepted for currently loaded MSR bitmap.
+ */
+static bool msr_write_intercepted(struct kvm_vcpu *vcpu, u32 msr)
+{
+ unsigned long *msr_bitmap;
+ int f = sizeof(unsigned long);
+
+ if (!cpu_has_vmx_msr_bitmap())
+ return true;
+
+ msr_bitmap = to_vmx(vcpu)->loaded_vmcs->msr_bitmap;
+
+ if (msr <= 0x1fff) {
+ return !!test_bit(msr, msr_bitmap + 0x800 / f);
+ } else if ((msr >= 0xc0000000) && (msr <= 0xc0001fff)) {
+ msr &= 0x1fff;
+ return !!test_bit(msr, msr_bitmap + 0xc00 / f);
+ }
+
+ return true;
+}
+
+/*
* Check if MSR is intercepted for L01 MSR bitmap.
*/
static bool msr_write_intercepted_l01(struct kvm_vcpu *vcpu, u32 msr)
@@ -2834,6 +2858,13 @@ static int vmx_get_msr(struct kvm_vcpu *
case MSR_IA32_TSC:
msr_info->data = guest_read_tsc(vcpu);
break;
+ case MSR_IA32_SPEC_CTRL:
+ if (!msr_info->host_initiated &&
+ !guest_cpuid_has_ibrs(vcpu))
+ return 1;
+
+ msr_info->data = to_vmx(vcpu)->spec_ctrl;
+ break;
case MSR_IA32_ARCH_CAPABILITIES:
if (!msr_info->host_initiated &&
!guest_cpuid_has_arch_capabilities(vcpu))
@@ -2939,6 +2970,36 @@ static int vmx_set_msr(struct kvm_vcpu *
case MSR_IA32_TSC:
kvm_write_tsc(vcpu, msr_info);
break;
+ case MSR_IA32_SPEC_CTRL:
+ if (!msr_info->host_initiated &&
+ !guest_cpuid_has_ibrs(vcpu))
+ return 1;
+
+ /* The STIBP bit doesn't fault even if it's not advertised */
+ if (data & ~(SPEC_CTRL_IBRS | SPEC_CTRL_STIBP))
+ return 1;
+
+ vmx->spec_ctrl = data;
+
+ if (!data)
+ break;
+
+ /*
+ * For non-nested:
+ * When it's written (to non-zero) for the first time, pass
+ * it through.
+ *
+ * For nested:
+ * The handling of the MSR bitmap for L2 guests is done in
+ * nested_vmx_merge_msr_bitmap. We should not touch the
+ * vmcs02.msr_bitmap here since it gets completely overwritten
+ * in the merging. We update the vmcs01 here for L1 as well
+ * since it will end up touching the MSR anyway now.
+ */
+ vmx_disable_intercept_for_msr(vmx->vmcs01.msr_bitmap,
+ MSR_IA32_SPEC_CTRL,
+ MSR_TYPE_RW);
+ break;
case MSR_IA32_PRED_CMD:
if (!msr_info->host_initiated &&
!guest_cpuid_has_ibpb(vcpu))
@@ -5045,6 +5106,7 @@ static void vmx_vcpu_reset(struct kvm_vc
u64 cr0;
vmx->rmode.vm86_active = 0;
+ vmx->spec_ctrl = 0;
vmx->soft_vnmi_blocked = 0;
@@ -8589,6 +8651,15 @@ static void __noclone vmx_vcpu_run(struc
atomic_switch_perf_msrs(vmx);
debugctlmsr = get_debugctlmsr();
+ /*
+ * If this vCPU has touched SPEC_CTRL, restore the guest's value if
+ * it's non-zero. Since vmentry is serialising on affected CPUs, there
+ * is no need to worry about the conditional branch over the wrmsr
+ * being speculatively taken.
+ */
+ if (vmx->spec_ctrl)
+ wrmsrl(MSR_IA32_SPEC_CTRL, vmx->spec_ctrl);
+
vmx->__launched = vmx->loaded_vmcs->launched;
asm(
/* Store host registers */
@@ -8707,6 +8778,27 @@ static void __noclone vmx_vcpu_run(struc
#endif
);
+ /*
+ * We do not use IBRS in the kernel. If this vCPU has used the
+ * SPEC_CTRL MSR it may have left it on; save the value and
+ * turn it off. This is much more efficient than blindly adding
+ * it to the atomic save/restore list. Especially as the former
+ * (Saving guest MSRs on vmexit) doesn't even exist in KVM.
+ *
+ * For non-nested case:
+ * If the L01 MSR bitmap does not intercept the MSR, then we need to
+ * save it.
+ *
+ * For nested case:
+ * If the L02 MSR bitmap does not intercept the MSR, then we need to
+ * save it.
+ */
+ if (!msr_write_intercepted(vcpu, MSR_IA32_SPEC_CTRL))
+ rdmsrl(MSR_IA32_SPEC_CTRL, vmx->spec_ctrl);
+
+ if (vmx->spec_ctrl)
+ wrmsrl(MSR_IA32_SPEC_CTRL, 0);
+
/* Eliminate branch target predictions from guest mode */
vmexit_fill_RSB();
@@ -9242,7 +9334,7 @@ static inline bool nested_vmx_merge_msr_
unsigned long *msr_bitmap_l1;
unsigned long *msr_bitmap_l0 = to_vmx(vcpu)->nested.vmcs02.msr_bitmap;
/*
- * pred_cmd is trying to verify two things:
+ * pred_cmd & spec_ctrl are trying to verify two things:
*
* 1. L0 gave a permission to L1 to actually passthrough the MSR. This
* ensures that we do not accidentally generate an L02 MSR bitmap
@@ -9255,9 +9347,10 @@ static inline bool nested_vmx_merge_msr_
* the MSR.
*/
bool pred_cmd = msr_write_intercepted_l01(vcpu, MSR_IA32_PRED_CMD);
+ bool spec_ctrl = msr_write_intercepted_l01(vcpu, MSR_IA32_SPEC_CTRL);
if (!nested_cpu_has_virt_x2apic_mode(vmcs12) &&
- !pred_cmd)
+ !pred_cmd && !spec_ctrl)
return false;
page = nested_get_page(vcpu, vmcs12->msr_bitmap);
@@ -9293,6 +9386,12 @@ static inline bool nested_vmx_merge_msr_
}
}
+ if (spec_ctrl)
+ nested_vmx_disable_intercept_for_msr(
+ msr_bitmap_l1, msr_bitmap_l0,
+ MSR_IA32_SPEC_CTRL,
+ MSR_TYPE_R | MSR_TYPE_W);
+
if (pred_cmd)
nested_vmx_disable_intercept_for_msr(
msr_bitmap_l1, msr_bitmap_l0,
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -961,7 +961,7 @@ static u32 msrs_to_save[] = {
#endif
MSR_IA32_TSC, MSR_IA32_CR_PAT, MSR_VM_HSAVE_PA,
MSR_IA32_FEATURE_CONTROL, MSR_IA32_BNDCFGS, MSR_TSC_AUX,
- MSR_IA32_ARCH_CAPABILITIES
+ MSR_IA32_SPEC_CTRL, MSR_IA32_ARCH_CAPABILITIES
};
static unsigned num_msrs_to_save;
next prev parent reply other threads:[~2018-12-14 12:20 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-14 11:59 [PATCH 4.4 00/88] 4.4.168-stable review Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 01/88] ipv6: Check available headroom in ip6_xmit() even without options Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 02/88] net: 8139cp: fix a BUG triggered by changing mtu with network traffic Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 03/88] net: phy: dont allow __set_phy_supported to add unsupported modes Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 04/88] net: Prevent invalid access to skb->prev in __qdisc_drop_all Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 05/88] rtnetlink: ndo_dflt_fdb_dump() only work for ARPHRD_ETHER devices Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 06/88] tcp: fix NULL ref in tail loss probe Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 07/88] tun: forbid iface creation with rtnl ops Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 08/88] neighbour: Avoid writing before skb->head in neigh_hh_output() Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 09/88] ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes Greg Kroah-Hartman
2018-12-16 9:57 ` jwiesner
2018-12-14 11:59 ` [PATCH 4.4 10/88] ARM: OMAP2+: prm44xx: Fix section annotation on omap44xx_prm_enable_io_wakeup Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 11/88] ARM: OMAP1: ams-delta: Fix possible use of uninitialized field Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 12/88] sysv: return err instead of 0 in __sysv_write_inode Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 13/88] s390/cpum_cf: Reject request for sampling in event initialization Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 14/88] hwmon: (ina2xx) Fix current value calculation Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 15/88] ASoC: dapm: Recalculate audio map forcely when card instantiated Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 16/88] hwmon: (w83795) temp4_type has writable permission Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 17/88] Btrfs: send, fix infinite loop due to directory rename dependencies Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 18/88] ASoC: omap-mcpdm: Add pm_qos handling to avoid under/overruns with CPU_IDLE Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 19/88] ASoC: omap-dmic: Add pm_qos handling to avoid overruns " Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 20/88] exportfs: do not read dentry after free Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 21/88] bpf: fix check of allowed specifiers in bpf_trace_printk Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 22/88] USB: omap_udc: use devm_request_irq() Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 23/88] USB: omap_udc: fix crashes on probe error and module removal Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 24/88] USB: omap_udc: fix omap_udc_start() on 15xx machines Greg Kroah-Hartman
2018-12-14 11:59 ` [PATCH 4.4 25/88] USB: omap_udc: fix USB gadget functionality on Palm Tungsten E Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 26/88] KVM: x86: fix empty-body warnings Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 27/88] net: thunderx: fix NULL pointer dereference in nic_remove Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 28/88] ixgbe: recognize 1000BaseLX SFP modules as 1Gbps Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 29/88] net: hisilicon: remove unexpected free_netdev Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 30/88] drm/ast: fixed reading monitor EDID not stable issue Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 31/88] xen: xlate_mmu: add missing header to fix W=1 warning Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 32/88] fscache: fix race between enablement and dropping of object Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 33/88] fscache, cachefiles: remove redundant variable cache Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 34/88] ocfs2: fix deadlock caused by ocfs2_defrag_extent() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 35/88] hfs: do not free node before using Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 36/88] hfsplus: " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 37/88] debugobjects: avoid recursive calls with kmemleak Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 38/88] ocfs2: fix potential use after free Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 39/88] pstore: Convert console write to use ->write_buf Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 40/88] ALSA: pcm: remove SNDRV_PCM_IOCTL1_INFO internal command Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 41/88] KVM: nVMX: fix msr bitmaps to prevent L2 from accessing L0 x2APIC Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 42/88] KVM: nVMX: mark vmcs12 pages dirty on L2 exit Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 43/88] KVM: nVMX: Eliminate vmcs02 pool Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 44/88] KVM: VMX: introduce alloc_loaded_vmcs Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 45/88] KVM: VMX: make MSR bitmaps per-VCPU Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 46/88] KVM/x86: Add IBPB support Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 47/88] KVM/VMX: Emulate MSR_IA32_ARCH_CAPABILITIES Greg Kroah-Hartman
2018-12-14 12:00 ` Greg Kroah-Hartman [this message]
2018-12-14 12:00 ` [PATCH 4.4 49/88] KVM/SVM: Allow direct access to MSR_IA32_SPEC_CTRL Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 50/88] KVM/x86: Remove indirect MSR op calls from SPEC_CTRL Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 51/88] x86: reorganize SMAP handling in user space accesses Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 52/88] x86: fix SMAP in 32-bit environments Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 53/88] x86: Introduce __uaccess_begin_nospec() and uaccess_try_nospec Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 54/88] x86/usercopy: Replace open coded stac/clac with __uaccess_{begin, end} Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 55/88] x86/uaccess: Use __uaccess_begin_nospec() and uaccess_try_nospec Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 56/88] x86/bugs, KVM: Support the combination of guest and host IBRS Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 57/88] x86/KVM/VMX: Expose SPEC_CTRL Bit(2) to the guest Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 58/88] KVM: SVM: Move spec control call after restore of GS Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 59/88] x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 60/88] x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 61/88] KVM: SVM: Implement VIRT_SPEC_CTRL support for SSBD Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 62/88] bpf: support 8-byte metafield access Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 63/88] bpf/verifier: Add spi variable to check_stack_write() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 64/88] bpf/verifier: Pass instruction index to check_mem_access() and check_xadd() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 65/88] bpf: Prevent memory disambiguation attack Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 66/88] wil6210: missing length check in wmi_set_ie Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 67/88] posix-timers: Sanitize overrun handling Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 68/88] mm/hugetlb.c: dont call region_abort if region_chg fails Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 69/88] hugetlbfs: fix offset overflow in hugetlbfs mmap Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 70/88] hugetlbfs: check for pgoff value overflow Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 71/88] hugetlbfs: fix bug in pgoff overflow checking Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 72/88] swiotlb: clean up reporting Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 73/88] sr: pass down correctly sized SCSI sense buffer Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 74/88] mm: remove write/force parameters from __get_user_pages_locked() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 75/88] mm: remove write/force parameters from __get_user_pages_unlocked() Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 76/88] mm: replace get_user_pages_unlocked() write/force parameters with gup_flags Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 77/88] mm: replace get_user_pages_locked() " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 78/88] mm: replace get_vaddr_frames() " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 79/88] mm: replace get_user_pages() " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 80/88] mm: replace __access_remote_vm() write parameter " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 81/88] mm: replace access_remote_vm() " Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 82/88] proc: dont use FOLL_FORCE for reading cmdline and environment Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 83/88] proc: do not access cmdline nor environ from file-backed areas Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 84/88] media: dvb-frontends: fix i2c access helpers for KASAN Greg Kroah-Hartman
2018-12-14 12:00 ` [PATCH 4.4 85/88] matroxfb: fix size of memcpy Greg Kroah-Hartman
2018-12-14 12:01 ` [PATCH 4.4 86/88] staging: speakup: Replace strncpy with memcpy Greg Kroah-Hartman
2018-12-14 12:01 ` [PATCH 4.4 87/88] rocker: fix rocker_tlv_put_* functions for KASAN Greg Kroah-Hartman
2018-12-14 12:01 ` [PATCH 4.4 88/88] selftests: Move networking/timestamping from Documentation Greg Kroah-Hartman
2018-12-14 15:39 ` [PATCH 4.4 00/88] 4.4.168-stable review Guenter Roeck
2018-12-14 17:33 ` kernelci.org bot
2018-12-14 20:12 ` shuah
2018-12-15 2:10 ` Guenter Roeck
2018-12-15 8:07 ` Greg Kroah-Hartman
2018-12-15 15:45 ` Guenter Roeck
2018-12-16 23:58 ` Ben Hutchings
2018-12-17 9:05 ` Greg Kroah-Hartman
2018-12-17 13:46 ` Guenter Roeck
2018-12-17 19:08 ` Greg Kroah-Hartman
2018-12-17 20:12 ` Guenter Roeck
2018-12-17 20:52 ` Greg Kroah-Hartman
2018-12-15 11:15 ` Harsh Shandilya
2018-12-17 9:06 ` Greg Kroah-Hartman
2018-12-15 16:44 ` Dan Rue
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