diff -druNp --no-dereference linux-libre-3.18.91-gnu/arch/mips/kernel/ptrace.c linux-libre-3.18.92-gnu/arch/mips/kernel/ptrace.c
--- linux-libre-3.18.91-gnu/arch/mips/kernel/ptrace.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/arch/mips/kernel/ptrace.c	2018-01-17 03:29:32.000000000 -0500
@@ -400,25 +400,38 @@ static int gpr64_set(struct task_struct
 
 #endif /* CONFIG_64BIT */
 
-static int fpr_get(struct task_struct *target,
-		   const struct user_regset *regset,
-		   unsigned int pos, unsigned int count,
-		   void *kbuf, void __user *ubuf)
+/*
+ * Copy the floating-point context to the supplied NT_PRFPREG buffer,
+ * !CONFIG_CPU_HAS_MSA variant.  FP context's general register slots
+ * correspond 1:1 to buffer slots.  Only general registers are copied.
+ */
+static int fpr_get_fpa(struct task_struct *target,
+		       unsigned int *pos, unsigned int *count,
+		       void **kbuf, void __user **ubuf)
 {
-	unsigned i;
-	int err;
-	u64 fpr_val;
-
-	/* XXX fcr31  */
+	return user_regset_copyout(pos, count, kbuf, ubuf,
+				   &target->thread.fpu,
+				   0, NUM_FPU_REGS * sizeof(elf_fpreg_t));
+}
 
-	if (sizeof(target->thread.fpu.fpr[i]) == sizeof(elf_fpreg_t))
-		return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-					   &target->thread.fpu,
-					   0, sizeof(elf_fpregset_t));
+/*
+ * Copy the floating-point context to the supplied NT_PRFPREG buffer,
+ * CONFIG_CPU_HAS_MSA variant.  Only lower 64 bits of FP context's
+ * general register slots are copied to buffer slots.  Only general
+ * registers are copied.
+ */
+static int fpr_get_msa(struct task_struct *target,
+		       unsigned int *pos, unsigned int *count,
+		       void **kbuf, void __user **ubuf)
+{
+	unsigned int i;
+	u64 fpr_val;
+	int err;
 
+	BUILD_BUG_ON(sizeof(fpr_val) != sizeof(elf_fpreg_t));
 	for (i = 0; i < NUM_FPU_REGS; i++) {
 		fpr_val = get_fpr64(&target->thread.fpu.fpr[i], 0);
-		err = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+		err = user_regset_copyout(pos, count, kbuf, ubuf,
 					  &fpr_val, i * sizeof(elf_fpreg_t),
 					  (i + 1) * sizeof(elf_fpreg_t));
 		if (err)
@@ -428,25 +441,64 @@ static int fpr_get(struct task_struct *t
 	return 0;
 }
 
-static int fpr_set(struct task_struct *target,
+/*
+ * Copy the floating-point context to the supplied NT_PRFPREG buffer.
+ * Choose the appropriate helper for general registers, and then copy
+ * the FCSR register separately.
+ */
+static int fpr_get(struct task_struct *target,
 		   const struct user_regset *regset,
 		   unsigned int pos, unsigned int count,
-		   const void *kbuf, const void __user *ubuf)
+		   void *kbuf, void __user *ubuf)
 {
-	unsigned i;
+	const int fcr31_pos = NUM_FPU_REGS * sizeof(elf_fpreg_t);
 	int err;
-	u64 fpr_val;
 
-	/* XXX fcr31  */
+	if (sizeof(target->thread.fpu.fpr[0]) == sizeof(elf_fpreg_t))
+		err = fpr_get_fpa(target, &pos, &count, &kbuf, &ubuf);
+	else
+		err = fpr_get_msa(target, &pos, &count, &kbuf, &ubuf);
+	if (err)
+		return err;
 
-	if (sizeof(target->thread.fpu.fpr[i]) == sizeof(elf_fpreg_t))
-		return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-					  &target->thread.fpu,
-					  0, sizeof(elf_fpregset_t));
+	err = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				  &target->thread.fpu.fcr31,
+				  fcr31_pos, fcr31_pos + sizeof(u32));
+
+	return err;
+}
+
+/*
+ * Copy the supplied NT_PRFPREG buffer to the floating-point context,
+ * !CONFIG_CPU_HAS_MSA variant.   Buffer slots correspond 1:1 to FP
+ * context's general register slots.  Only general registers are copied.
+ */
+static int fpr_set_fpa(struct task_struct *target,
+		       unsigned int *pos, unsigned int *count,
+		       const void **kbuf, const void __user **ubuf)
+{
+	return user_regset_copyin(pos, count, kbuf, ubuf,
+				  &target->thread.fpu,
+				  0, NUM_FPU_REGS * sizeof(elf_fpreg_t));
+}
+
+/*
+ * Copy the supplied NT_PRFPREG buffer to the floating-point context,
+ * CONFIG_CPU_HAS_MSA variant.  Buffer slots are copied to lower 64
+ * bits only of FP context's general register slots.  Only general
+ * registers are copied.
+ */
+static int fpr_set_msa(struct task_struct *target,
+		       unsigned int *pos, unsigned int *count,
+		       const void **kbuf, const void __user **ubuf)
+{
+	unsigned int i;
+	u64 fpr_val;
+	int err;
 
 	BUILD_BUG_ON(sizeof(fpr_val) != sizeof(elf_fpreg_t));
-	for (i = 0; i < NUM_FPU_REGS && count >= sizeof(elf_fpreg_t); i++) {
-		err = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+	for (i = 0; i < NUM_FPU_REGS && *count > 0; i++) {
+		err = user_regset_copyin(pos, count, kbuf, ubuf,
 					 &fpr_val, i * sizeof(elf_fpreg_t),
 					 (i + 1) * sizeof(elf_fpreg_t));
 		if (err)
@@ -457,6 +509,51 @@ static int fpr_set(struct task_struct *t
 	return 0;
 }
 
+/*
+ * Copy the supplied NT_PRFPREG buffer to the floating-point context.
+ * Choose the appropriate helper for general registers, and then copy
+ * the FCSR register separately.
+ *
+ * We optimize for the case where `count % sizeof(elf_fpreg_t) == 0',
+ * which is supposed to have been guaranteed by the kernel before
+ * calling us, e.g. in `ptrace_regset'.  We enforce that requirement,
+ * so that we can safely avoid preinitializing temporaries for
+ * partial register writes.
+ */
+static int fpr_set(struct task_struct *target,
+		   const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   const void *kbuf, const void __user *ubuf)
+{
+	const int fcr31_pos = NUM_FPU_REGS * sizeof(elf_fpreg_t);
+	u32 fcr31;
+	int err;
+
+	BUG_ON(count % sizeof(elf_fpreg_t));
+
+	if (pos + count > sizeof(elf_fpregset_t))
+		return -EIO;
+
+	if (sizeof(target->thread.fpu.fpr[0]) == sizeof(elf_fpreg_t))
+		err = fpr_set_fpa(target, &pos, &count, &kbuf, &ubuf);
+	else
+		err = fpr_set_msa(target, &pos, &count, &kbuf, &ubuf);
+	if (err)
+		return err;
+
+	if (count > 0) {
+		err = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+					 &fcr31,
+					 fcr31_pos, fcr31_pos + sizeof(u32));
+		if (err)
+			return err;
+
+		target->thread.fpu.fcr31 = fcr31 & ~FPU_CSR_ALL_X;
+	}
+
+	return err;
+}
+
 enum mips_regset {
 	REGSET_GPR,
 	REGSET_FPR,
diff -druNp --no-dereference linux-libre-3.18.91-gnu/arch/x86/kernel/acpi/boot.c linux-libre-3.18.92-gnu/arch/x86/kernel/acpi/boot.c
--- linux-libre-3.18.91-gnu/arch/x86/kernel/acpi/boot.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/arch/x86/kernel/acpi/boot.c	2018-01-17 03:29:32.000000000 -0500
@@ -308,13 +308,12 @@ acpi_parse_lapic_nmi(struct acpi_subtabl
 #ifdef CONFIG_X86_IO_APIC
 #define MP_ISA_BUS		0
 
+static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity,
+						u8 trigger, u32 gsi);
+
 static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
 					  u32 gsi)
 {
-	int ioapic;
-	int pin;
-	struct mpc_intsrc mp_irq;
-
 	/*
 	 * Check bus_irq boundary.
 	 */
@@ -324,14 +323,6 @@ static void __init mp_override_legacy_ir
 	}
 
 	/*
-	 * Convert 'gsi' to 'ioapic.pin'.
-	 */
-	ioapic = mp_find_ioapic(gsi);
-	if (ioapic < 0)
-		return;
-	pin = mp_find_ioapic_pin(ioapic, gsi);
-
-	/*
 	 * TBD: This check is for faulty timer entries, where the override
 	 *      erroneously sets the trigger to level, resulting in a HUGE
 	 *      increase of timer interrupts!
@@ -339,16 +330,8 @@ static void __init mp_override_legacy_ir
 	if ((bus_irq == 0) && (trigger == 3))
 		trigger = 1;
 
-	mp_irq.type = MP_INTSRC;
-	mp_irq.irqtype = mp_INT;
-	mp_irq.irqflag = (trigger << 2) | polarity;
-	mp_irq.srcbus = MP_ISA_BUS;
-	mp_irq.srcbusirq = bus_irq;	/* IRQ */
-	mp_irq.dstapic = mpc_ioapic_id(ioapic); /* APIC ID */
-	mp_irq.dstirq = pin;	/* INTIN# */
-
-	mp_save_irq(&mp_irq);
-
+	if (mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi) < 0)
+		return;
 	/*
 	 * Reset default identity mapping if gsi is also an legacy IRQ,
 	 * otherwise there will be more than one entry with the same GSI
@@ -445,6 +428,34 @@ static struct irq_domain_ops acpi_irqdom
 	.unmap = mp_irqdomain_unmap,
 };
 
+static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity,
+						u8 trigger, u32 gsi)
+{
+	struct mpc_intsrc mp_irq;
+	int ioapic, pin;
+
+	/* Convert 'gsi' to 'ioapic.pin'(INTIN#) */
+	ioapic = mp_find_ioapic(gsi);
+	if (ioapic < 0) {
+		pr_warn("Failed to find ioapic for gsi : %u\n", gsi);
+		return ioapic;
+	}
+
+	pin = mp_find_ioapic_pin(ioapic, gsi);
+
+	mp_irq.type = MP_INTSRC;
+	mp_irq.irqtype = mp_INT;
+	mp_irq.irqflag = (trigger << 2) | polarity;
+	mp_irq.srcbus = MP_ISA_BUS;
+	mp_irq.srcbusirq = bus_irq;
+	mp_irq.dstapic = mpc_ioapic_id(ioapic);
+	mp_irq.dstirq = pin;
+
+	mp_save_irq(&mp_irq);
+
+	return 0;
+}
+
 static int __init
 acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end)
 {
@@ -489,7 +500,10 @@ static void __init acpi_sci_ioapic_setup
 	if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK)
 		polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK;
 
-	mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
+	if (bus_irq < NR_IRQS_LEGACY)
+		mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
+	else
+		mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi);
 
 	/*
 	 * stash over-ride to indicate we've been here
diff -druNp --no-dereference linux-libre-3.18.91-gnu/arch/x86/kernel/cpu/microcode/intel.c linux-libre-3.18.92-gnu/arch/x86/kernel/cpu/microcode/intel.c
--- linux-libre-3.18.91-gnu/arch/x86/kernel/cpu/microcode/intel.c	2018-01-03 14:46:20.000000000 -0500
+++ linux-libre-3.18.92-gnu/arch/x86/kernel/cpu/microcode/intel.c	2018-01-17 18:24:26.000000000 -0500
@@ -271,8 +271,17 @@ static bool is_blacklisted(unsigned int
 {
 	struct cpuinfo_x86 *c = &cpu_data(cpu);
 
-	if (c->x86 == 6 && c->x86_model == 79) {
-		pr_err_once("late loading on model 79 is disabled.\n");
+	/*
+	 * Late loading on model 79 with microcode revision less than 0x0b000021
+	 * may result in a system hang. This behavior is documented in item
+	 * BDF90, #334165 (Intel Xeon Processor E7-8800/4800 v4 Product Family).
+	 */
+	if (c->x86 == 6 &&
+	    c->x86_model == 79 &&
+	    c->x86_mask == 0x01 &&
+	    c->microcode < 0x0b000021) {
+		pr_err_once("Erratum BDF90: late loading with revision < 0x0b000021 (0x%x) disabled.\n", c->microcode);
+		pr_err_once("Please consider either early loading through initrd/built-in or a potential BIOS update.\n");
 		return true;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.91-gnu/arch/x86/kvm/svm.c linux-libre-3.18.92-gnu/arch/x86/kvm/svm.c
--- linux-libre-3.18.91-gnu/arch/x86/kvm/svm.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/arch/x86/kvm/svm.c	2018-01-17 03:29:32.000000000 -0500
@@ -3946,6 +3946,25 @@ static void svm_vcpu_run(struct kvm_vcpu
 		"mov %%r14, %c[r14](%[svm]) \n\t"
 		"mov %%r15, %c[r15](%[svm]) \n\t"
 #endif
+		/*
+		* Clear host registers marked as clobbered to prevent
+		* speculative use.
+		*/
+		"xor %%" _ASM_BX ", %%" _ASM_BX " \n\t"
+		"xor %%" _ASM_CX ", %%" _ASM_CX " \n\t"
+		"xor %%" _ASM_DX ", %%" _ASM_DX " \n\t"
+		"xor %%" _ASM_SI ", %%" _ASM_SI " \n\t"
+		"xor %%" _ASM_DI ", %%" _ASM_DI " \n\t"
+#ifdef CONFIG_X86_64
+		"xor %%r8, %%r8 \n\t"
+		"xor %%r9, %%r9 \n\t"
+		"xor %%r10, %%r10 \n\t"
+		"xor %%r11, %%r11 \n\t"
+		"xor %%r12, %%r12 \n\t"
+		"xor %%r13, %%r13 \n\t"
+		"xor %%r14, %%r14 \n\t"
+		"xor %%r15, %%r15 \n\t"
+#endif
 		"pop %%" _ASM_BP
 		:
 		: [svm]"a"(svm),
diff -druNp --no-dereference linux-libre-3.18.91-gnu/arch/x86/kvm/vmx.c linux-libre-3.18.92-gnu/arch/x86/kvm/vmx.c
--- linux-libre-3.18.91-gnu/arch/x86/kvm/vmx.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/arch/x86/kvm/vmx.c	2018-01-17 03:29:32.000000000 -0500
@@ -7653,6 +7653,7 @@ static void __noclone vmx_vcpu_run(struc
 		/* Save guest registers, load host registers, keep flags */
 		"mov %0, %c[wordsize](%%" _ASM_SP ") \n\t"
 		"pop %0 \n\t"
+		"setbe %c[fail](%0)\n\t"
 		"mov %%" _ASM_AX ", %c[rax](%0) \n\t"
 		"mov %%" _ASM_BX ", %c[rbx](%0) \n\t"
 		__ASM_SIZE(pop) " %c[rcx](%0) \n\t"
@@ -7669,12 +7670,23 @@ static void __noclone vmx_vcpu_run(struc
 		"mov %%r13, %c[r13](%0) \n\t"
 		"mov %%r14, %c[r14](%0) \n\t"
 		"mov %%r15, %c[r15](%0) \n\t"
+		"xor %%r8d,  %%r8d \n\t"
+		"xor %%r9d,  %%r9d \n\t"
+		"xor %%r10d, %%r10d \n\t"
+		"xor %%r11d, %%r11d \n\t"
+		"xor %%r12d, %%r12d \n\t"
+		"xor %%r13d, %%r13d \n\t"
+		"xor %%r14d, %%r14d \n\t"
+		"xor %%r15d, %%r15d \n\t"
 #endif
 		"mov %%cr2, %%" _ASM_AX "   \n\t"
 		"mov %%" _ASM_AX ", %c[cr2](%0) \n\t"
 
+		"xor %%eax, %%eax \n\t"
+		"xor %%ebx, %%ebx \n\t"
+		"xor %%esi, %%esi \n\t"
+		"xor %%edi, %%edi \n\t"
 		"pop  %%" _ASM_BP "; pop  %%" _ASM_DX " \n\t"
-		"setbe %c[fail](%0) \n\t"
 		".pushsection .rodata \n\t"
 		".global vmx_return \n\t"
 		"vmx_return: " _ASM_PTR " 2b \n\t"
diff -druNp --no-dereference linux-libre-3.18.91-gnu/crypto/algapi.c linux-libre-3.18.92-gnu/crypto/algapi.c
--- linux-libre-3.18.91-gnu/crypto/algapi.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/crypto/algapi.c	2018-01-17 03:29:32.000000000 -0500
@@ -159,6 +159,18 @@ void crypto_remove_spawns(struct crypto_
 
 			spawn->alg = NULL;
 			spawns = &inst->alg.cra_users;
+
+			/*
+			 * We may encounter an unregistered instance here, since
+			 * an instance's spawns are set up prior to the instance
+			 * being registered.  An unregistered instance will have
+			 * NULL ->cra_users.next, since ->cra_users isn't
+			 * properly initialized until registration.  But an
+			 * unregistered instance cannot have any users, so treat
+			 * it the same as ->cra_users being empty.
+			 */
+			if (spawns->next == NULL)
+				break;
 		}
 	} while ((spawns = crypto_more_spawns(alg, &stack, &top,
 					      &secondary_spawns)));
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/crypto/n2_core.c linux-libre-3.18.92-gnu/drivers/crypto/n2_core.c
--- linux-libre-3.18.91-gnu/drivers/crypto/n2_core.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/crypto/n2_core.c	2018-01-17 03:29:32.000000000 -0500
@@ -1641,6 +1641,7 @@ static int queue_cache_init(void)
 					  CWQ_ENTRY_SIZE, 0, NULL);
 	if (!queue_cache[HV_NCS_QTYPE_CWQ - 1]) {
 		kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]);
+		queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL;
 		return -ENOMEM;
 	}
 	return 0;
@@ -1650,6 +1651,8 @@ static void queue_cache_destroy(void)
 {
 	kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_MAU - 1]);
 	kmem_cache_destroy(queue_cache[HV_NCS_QTYPE_CWQ - 1]);
+	queue_cache[HV_NCS_QTYPE_MAU - 1] = NULL;
+	queue_cache[HV_NCS_QTYPE_CWQ - 1] = NULL;
 }
 
 static int spu_queue_register(struct spu_queue *p, unsigned long q_type)
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c linux-libre-3.18.92-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c
--- linux-libre-3.18.91-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/infiniband/ulp/srpt/ib_srpt.c	2018-01-17 03:29:32.000000000 -0500
@@ -959,8 +959,7 @@ static int srpt_init_ch_qp(struct srpt_r
 		return -ENOMEM;
 
 	attr->qp_state = IB_QPS_INIT;
-	attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE | IB_ACCESS_REMOTE_READ |
-	    IB_ACCESS_REMOTE_WRITE;
+	attr->qp_access_flags = IB_ACCESS_LOCAL_WRITE;
 	attr->port_num = ch->sport->port;
 	attr->pkey_index = 0;
 
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/input/mouse/elantech.c linux-libre-3.18.92-gnu/drivers/input/mouse/elantech.c
--- linux-libre-3.18.91-gnu/drivers/input/mouse/elantech.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/input/mouse/elantech.c	2018-01-17 03:29:32.000000000 -0500
@@ -1558,7 +1558,7 @@ static int elantech_set_properties(struc
 		case 5:
 			etd->hw_version = 3;
 			break;
-		case 6 ... 14:
+		case 6 ... 15:
 			etd->hw_version = 4;
 			break;
 		default:
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/net/can/usb/gs_usb.c linux-libre-3.18.92-gnu/drivers/net/can/usb/gs_usb.c
--- linux-libre-3.18.91-gnu/drivers/net/can/usb/gs_usb.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/net/can/usb/gs_usb.c	2018-01-17 03:29:32.000000000 -0500
@@ -430,7 +430,7 @@ static int gs_usb_set_bittiming(struct n
 		dev_err(netdev->dev.parent, "Couldn't set bittimings (err=%d)",
 			rc);
 
-	return rc;
+	return (rc > 0) ? 0 : rc;
 }
 
 static void gs_usb_xmit_callback(struct urb *urb)
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/net/can/usb/kvaser_usb.c linux-libre-3.18.92-gnu/drivers/net/can/usb/kvaser_usb.c
--- linux-libre-3.18.91-gnu/drivers/net/can/usb/kvaser_usb.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/net/can/usb/kvaser_usb.c	2018-01-17 03:29:32.000000000 -0500
@@ -602,7 +602,6 @@ static int kvaser_usb_simple_msg_async(s
 	if (err) {
 		netdev_err(netdev, "Error transmitting URB\n");
 		usb_unanchor_urb(urb);
-		kfree(buf);
 		usb_free_urb(urb);
 		kfree(buf);
 		return err;
@@ -1389,7 +1388,6 @@ static netdev_tx_t kvaser_usb_start_xmit
 
 		atomic_dec(&priv->active_tx_urbs);
 		usb_unanchor_urb(urb);
-		kfree(buf);
 
 		stats->tx_dropped++;
 
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/net/ethernet/intel/e1000e/ich8lan.c linux-libre-3.18.92-gnu/drivers/net/ethernet/intel/e1000e/ich8lan.c
--- linux-libre-3.18.91-gnu/drivers/net/ethernet/intel/e1000e/ich8lan.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/net/ethernet/intel/e1000e/ich8lan.c	2018-01-17 03:29:32.000000000 -0500
@@ -1299,6 +1299,9 @@ out:
  *  Checks to see of the link status of the hardware has changed.  If a
  *  change in link status has been detected, then we read the PHY registers
  *  to get the current speed/duplex if link exists.
+ *
+ *  Returns a negative error code (-E1000_ERR_*) or 0 (link down) or 1 (link
+ *  up).
  **/
 static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
 {
@@ -1313,7 +1316,7 @@ static s32 e1000_check_for_copper_link_i
 	 * Change or Rx Sequence Error interrupt.
 	 */
 	if (!mac->get_link_status)
-		return 0;
+		return 1;
 
 	/* First we want to see if the MII Status Register reports
 	 * link.  If so, then we want to get the current speed/duplex
@@ -1452,10 +1455,12 @@ static s32 e1000_check_for_copper_link_i
 	 * different link partner.
 	 */
 	ret_val = e1000e_config_fc_after_link_up(hw);
-	if (ret_val)
+	if (ret_val) {
 		e_dbg("Error configuring flow control\n");
+		return ret_val;
+	}
 
-	return ret_val;
+	return 1;
 }
 
 static s32 e1000_get_variants_ich8lan(struct e1000_adapter *adapter)
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/net/ethernet/renesas/sh_eth.c linux-libre-3.18.92-gnu/drivers/net/ethernet/renesas/sh_eth.c
--- linux-libre-3.18.91-gnu/drivers/net/ethernet/renesas/sh_eth.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/net/ethernet/renesas/sh_eth.c	2018-01-17 03:29:32.000000000 -0500
@@ -2890,18 +2890,37 @@ static int sh_eth_drv_probe(struct platf
 	/* ioremap the TSU registers */
 	if (mdp->cd->tsu) {
 		struct resource *rtsu;
+
 		rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-		mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu);
-		if (IS_ERR(mdp->tsu_addr)) {
-			ret = PTR_ERR(mdp->tsu_addr);
+		if (!rtsu) {
+			dev_err(&pdev->dev, "no TSU resource\n");
+			ret = -ENODEV;
+			goto out_release;
+		}
+		/* We can only request the  TSU region  for the first port
+		 * of the two  sharing this TSU for the probe to succeed...
+		 */
+		if (devno % 2 == 0 &&
+		    !devm_request_mem_region(&pdev->dev, rtsu->start,
+					     resource_size(rtsu),
+					     dev_name(&pdev->dev))) {
+			dev_err(&pdev->dev, "can't request TSU resource.\n");
+			ret = -EBUSY;
+			goto out_release;
+		}
+		mdp->tsu_addr = devm_ioremap(&pdev->dev, rtsu->start,
+					     resource_size(rtsu));
+		if (!mdp->tsu_addr) {
+			dev_err(&pdev->dev, "TSU region ioremap() failed.\n");
+			ret = -ENOMEM;
 			goto out_release;
 		}
 		mdp->port = devno % 2;
 		ndev->features = NETIF_F_HW_VLAN_CTAG_FILTER;
 	}
 
-	/* initialize first or needed device */
-	if (!devno || pd->needs_init) {
+	/* Need to init only the first port of the two sharing a TSU */
+	if (devno % 2 == 0) {
 		if (mdp->cd->chip_reset)
 			mdp->cd->chip_reset(ndev);
 
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c linux-libre-3.18.92-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
--- linux-libre-3.18.91-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c	2018-01-17 03:29:32.000000000 -0500
@@ -277,8 +277,14 @@ bool stmmac_eee_init(struct stmmac_priv
 {
 	char *phy_bus_name = priv->plat->phy_bus_name;
 	unsigned long flags;
+	int interface = priv->plat->interface;
 	bool ret = false;
 
+	if ((interface != PHY_INTERFACE_MODE_MII) &&
+	    (interface != PHY_INTERFACE_MODE_GMII) &&
+	    !phy_interface_mode_is_rgmii(interface))
+		goto out;
+
 	/* Using PCS we cannot dial with the phy registers at this stage
 	 * so we do not support extra feature like EEE.
 	 */
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/staging/android/ashmem.c linux-libre-3.18.92-gnu/drivers/staging/android/ashmem.c
--- linux-libre-3.18.91-gnu/drivers/staging/android/ashmem.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/staging/android/ashmem.c	2018-01-17 03:29:32.000000000 -0500
@@ -759,10 +759,12 @@ static long ashmem_ioctl(struct file *fi
 		break;
 	case ASHMEM_SET_SIZE:
 		ret = -EINVAL;
+		mutex_lock(&ashmem_mutex);
 		if (!asma->file) {
 			ret = 0;
 			asma->size = (size_t) arg;
 		}
+		mutex_unlock(&ashmem_mutex);
 		break;
 	case ASHMEM_GET_SIZE:
 		ret = asma->size;
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/target/iscsi/iscsi_target.c linux-libre-3.18.92-gnu/drivers/target/iscsi/iscsi_target.c
--- linux-libre-3.18.91-gnu/drivers/target/iscsi/iscsi_target.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/target/iscsi/iscsi_target.c	2018-01-17 03:29:32.000000000 -0500
@@ -1750,7 +1750,6 @@ iscsit_handle_task_mgt_cmd(struct iscsi_
 	struct iscsi_tmr_req *tmr_req;
 	struct iscsi_tm *hdr;
 	int out_of_order_cmdsn = 0, ret;
-	bool sess_ref = false;
 	u8 function, tcm_function = TMR_UNKNOWN;
 
 	hdr			= (struct iscsi_tm *) buf;
@@ -1792,19 +1791,17 @@ iscsit_handle_task_mgt_cmd(struct iscsi_
 					     buf);
 	}
 
+	transport_init_se_cmd(&cmd->se_cmd, &lio_target_fabric_configfs->tf_ops,
+			      conn->sess->se_sess, 0, DMA_NONE,
+			      MSG_SIMPLE_TAG, cmd->sense_buffer + 2);
+
+	target_get_sess_cmd(&cmd->se_cmd, true);
+
 	/*
 	 * TASK_REASSIGN for ERL=2 / connection stays inside of
 	 * LIO-Target $FABRIC_MOD
 	 */
 	if (function != ISCSI_TM_FUNC_TASK_REASSIGN) {
-		transport_init_se_cmd(&cmd->se_cmd,
-				      &lio_target_fabric_configfs->tf_ops,
-				      conn->sess->se_sess, 0, DMA_NONE,
-				      MSG_SIMPLE_TAG, cmd->sense_buffer + 2);
-
-		target_get_sess_cmd(&cmd->se_cmd, true);
-		sess_ref = true;
-
 		switch (function) {
 		case ISCSI_TM_FUNC_ABORT_TASK:
 			tcm_function = TMR_ABORT_TASK;
@@ -1943,12 +1940,8 @@ attach:
 	 * For connection recovery, this is also the default action for
 	 * TMR TASK_REASSIGN.
 	 */
-	if (sess_ref) {
-		pr_debug("Handle TMR, using sess_ref=true check\n");
-		target_put_sess_cmd(&cmd->se_cmd);
-	}
-
 	iscsit_add_cmd_to_response_queue(cmd, conn, cmd->i_state);
+	target_put_sess_cmd(&cmd->se_cmd);
 	return 0;
 }
 EXPORT_SYMBOL(iscsit_handle_task_mgt_cmd);
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/target/target_core_tmr.c linux-libre-3.18.92-gnu/drivers/target/target_core_tmr.c
--- linux-libre-3.18.91-gnu/drivers/target/target_core_tmr.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/target/target_core_tmr.c	2018-01-17 03:29:32.000000000 -0500
@@ -137,6 +137,15 @@ static bool __target_check_io_state(stru
 		spin_unlock(&se_cmd->t_state_lock);
 		return false;
 	}
+	if (se_cmd->transport_state & CMD_T_PRE_EXECUTE) {
+		if (se_cmd->scsi_status) {
+			pr_debug("Attempted to abort io tag: %u early failure"
+				 " status: 0x%02x\n", se_cmd->se_tfo->get_task_tag(se_cmd),
+				 se_cmd->scsi_status);
+			spin_unlock(&se_cmd->t_state_lock);
+			return false;
+		}
+	}
 	if (sess->sess_tearing_down || se_cmd->cmd_wait_set) {
 		pr_debug("Attempted to abort io tag: %u already shutdown,"
 			" skipping\n", se_cmd->se_tfo->get_task_tag(se_cmd));
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/target/target_core_transport.c linux-libre-3.18.92-gnu/drivers/target/target_core_transport.c
--- linux-libre-3.18.91-gnu/drivers/target/target_core_transport.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/target/target_core_transport.c	2018-01-17 03:29:32.000000000 -0500
@@ -1796,6 +1796,7 @@ void target_execute_cmd(struct se_cmd *c
 	}
 
 	cmd->t_state = TRANSPORT_PROCESSING;
+	cmd->transport_state &= ~CMD_T_PRE_EXECUTE;
 	cmd->transport_state |= CMD_T_ACTIVE|CMD_T_BUSY|CMD_T_SENT;
 	spin_unlock_irq(&cmd->t_state_lock);
 	/*
@@ -2436,6 +2437,7 @@ int target_get_sess_cmd(struct se_cmd *s
 		ret = -ESHUTDOWN;
 		goto out;
 	}
+	se_cmd->transport_state |= CMD_T_PRE_EXECUTE;
 	list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list);
 out:
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/usb/misc/usb3503.c linux-libre-3.18.92-gnu/drivers/usb/misc/usb3503.c
--- linux-libre-3.18.91-gnu/drivers/usb/misc/usb3503.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/usb/misc/usb3503.c	2018-01-17 03:29:32.000000000 -0500
@@ -291,6 +291,8 @@ static int usb3503_probe(struct usb3503
 	if (gpio_is_valid(hub->gpio_reset)) {
 		err = devm_gpio_request_one(dev, hub->gpio_reset,
 				GPIOF_OUT_INIT_LOW, "usb3503 reset");
+		/* Datasheet defines a hardware reset to be at least 100us */
+		usleep_range(100, 10000);
 		if (err) {
 			dev_err(dev,
 				"unable to request GPIO %d as reset pin (%d)\n",
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/usb/mon/mon_bin.c linux-libre-3.18.92-gnu/drivers/usb/mon/mon_bin.c
--- linux-libre-3.18.91-gnu/drivers/usb/mon/mon_bin.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/usb/mon/mon_bin.c	2018-01-17 03:29:32.000000000 -0500
@@ -1000,7 +1000,9 @@ static long mon_bin_ioctl(struct file *f
 		break;
 
 	case MON_IOCQ_RING_SIZE:
+		mutex_lock(&rp->fetch_lock);
 		ret = rp->b_size;
+		mutex_unlock(&rp->fetch_lock);
 		break;
 
 	case MON_IOCT_RING_SIZE:
@@ -1227,12 +1229,16 @@ static int mon_bin_vma_fault(struct vm_a
 	unsigned long offset, chunk_idx;
 	struct page *pageptr;
 
+	mutex_lock(&rp->fetch_lock);
 	offset = vmf->pgoff << PAGE_SHIFT;
-	if (offset >= rp->b_size)
+	if (offset >= rp->b_size) {
+		mutex_unlock(&rp->fetch_lock);
 		return VM_FAULT_SIGBUS;
+	}
 	chunk_idx = offset / CHUNK_SIZE;
 	pageptr = rp->b_vec[chunk_idx].pg;
 	get_page(pageptr);
+	mutex_unlock(&rp->fetch_lock);
 	vmf->page = pageptr;
 	return 0;
 }
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/usb/serial/cp210x.c linux-libre-3.18.92-gnu/drivers/usb/serial/cp210x.c
--- linux-libre-3.18.91-gnu/drivers/usb/serial/cp210x.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/usb/serial/cp210x.c	2018-01-17 03:29:32.000000000 -0500
@@ -119,6 +119,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x10C4, 0x846E) }, /* BEI USB Sensor Interface (VCP) */
 	{ USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */
 	{ USB_DEVICE(0x10C4, 0x84B6) }, /* Starizona Hyperion */
+	{ USB_DEVICE(0x10C4, 0x85A7) }, /* LifeScan OneTouch Verio IQ */
 	{ USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */
 	{ USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */
 	{ USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */
@@ -168,6 +169,7 @@ static const struct usb_device_id id_tab
 	{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
 	{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
 	{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+	{ USB_DEVICE(0x18EF, 0xE030) }, /* ELV ALC 8xxx Battery Charger */
 	{ USB_DEVICE(0x18EF, 0xE032) }, /* ELV TFD500 Data Logger */
 	{ USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
 	{ USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/usb/storage/unusual_uas.h linux-libre-3.18.92-gnu/drivers/usb/storage/unusual_uas.h
--- linux-libre-3.18.91-gnu/drivers/usb/storage/unusual_uas.h	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/usb/storage/unusual_uas.h	2018-01-17 03:29:32.000000000 -0500
@@ -153,6 +153,13 @@ UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x99
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_NO_ATA_1X),
 
+/* Reported-by: Icenowy Zheng <icenowy@aosc.io> */
+UNUSUAL_DEV(0x2537, 0x1068, 0x0000, 0x9999,
+		"Norelsys",
+		"NS1068X",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_IGNORE_UAS),
+
 /* Reported-by: Takeo Nakayama <javhera@gmx.com> */
 UNUSUAL_DEV(0x357d, 0x7788, 0x0000, 0x9999,
 		"JMicron",
diff -druNp --no-dereference linux-libre-3.18.91-gnu/drivers/usb/usbip/usbip_common.c linux-libre-3.18.92-gnu/drivers/usb/usbip/usbip_common.c
--- linux-libre-3.18.91-gnu/drivers/usb/usbip/usbip_common.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/drivers/usb/usbip/usbip_common.c	2018-01-17 03:29:32.000000000 -0500
@@ -103,7 +103,7 @@ static void usbip_dump_usb_device(struct
 	dev_dbg(dev, "       devnum(%d) devpath(%s) usb speed(%s)",
 		udev->devnum, udev->devpath, usb_speed_string(udev->speed));
 
-	pr_debug("tt %p, ttport %d\n", udev->tt, udev->ttport);
+	pr_debug("tt hub ttport %d\n", udev->ttport);
 
 	dev_dbg(dev, "                    ");
 	for (i = 0; i < 16; i++)
@@ -136,12 +136,8 @@ static void usbip_dump_usb_device(struct
 	}
 	pr_debug("\n");
 
-	dev_dbg(dev, "parent %p, bus %p\n", udev->parent, udev->bus);
-
-	dev_dbg(dev,
-		"descriptor %p, config %p, actconfig %p, rawdescriptors %p\n",
-		&udev->descriptor, udev->config,
-		udev->actconfig, udev->rawdescriptors);
+	dev_dbg(dev, "parent %s, bus %s\n", dev_name(&udev->parent->dev),
+		udev->bus->bus_name);
 
 	dev_dbg(dev, "have_langid %d, string_langid %d\n",
 		udev->have_langid, udev->string_langid);
@@ -249,9 +245,6 @@ void usbip_dump_urb(struct urb *urb)
 
 	dev = &urb->dev->dev;
 
-	dev_dbg(dev, "   urb                   :%p\n", urb);
-	dev_dbg(dev, "   dev                   :%p\n", urb->dev);
-
 	usbip_dump_usb_device(urb->dev);
 
 	dev_dbg(dev, "   pipe                  :%08x ", urb->pipe);
@@ -260,11 +253,9 @@ void usbip_dump_urb(struct urb *urb)
 
 	dev_dbg(dev, "   status                :%d\n", urb->status);
 	dev_dbg(dev, "   transfer_flags        :%08X\n", urb->transfer_flags);
-	dev_dbg(dev, "   transfer_buffer       :%p\n", urb->transfer_buffer);
 	dev_dbg(dev, "   transfer_buffer_length:%d\n",
 						urb->transfer_buffer_length);
 	dev_dbg(dev, "   actual_length         :%d\n", urb->actual_length);
-	dev_dbg(dev, "   setup_packet          :%p\n", urb->setup_packet);
 
 	if (urb->setup_packet && usb_pipetype(urb->pipe) == PIPE_CONTROL)
 		usbip_dump_usb_ctrlrequest(
@@ -274,8 +265,6 @@ void usbip_dump_urb(struct urb *urb)
 	dev_dbg(dev, "   number_of_packets     :%d\n", urb->number_of_packets);
 	dev_dbg(dev, "   interval              :%d\n", urb->interval);
 	dev_dbg(dev, "   error_count           :%d\n", urb->error_count);
-	dev_dbg(dev, "   context               :%p\n", urb->context);
-	dev_dbg(dev, "   complete              :%p\n", urb->complete);
 }
 EXPORT_SYMBOL_GPL(usbip_dump_urb);
 
diff -druNp --no-dereference linux-libre-3.18.91-gnu/include/linux/fscache.h linux-libre-3.18.92-gnu/include/linux/fscache.h
--- linux-libre-3.18.91-gnu/include/linux/fscache.h	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/include/linux/fscache.h	2018-01-17 03:29:32.000000000 -0500
@@ -764,7 +764,7 @@ bool fscache_maybe_release_page(struct f
 {
 	if (fscache_cookie_valid(cookie) && PageFsCache(page))
 		return __fscache_maybe_release_page(cookie, page, gfp);
-	return false;
+	return true;
 }
 
 /**
diff -druNp --no-dereference linux-libre-3.18.91-gnu/include/linux/phy.h linux-libre-3.18.92-gnu/include/linux/phy.h
--- linux-libre-3.18.91-gnu/include/linux/phy.h	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/include/linux/phy.h	2018-01-17 03:29:32.000000000 -0500
@@ -678,6 +678,17 @@ static inline int phy_write_mmd(struct p
 }
 
 /**
+ * phy_interface_mode_is_rgmii - Convenience function for testing if a
+ * PHY interface mode is RGMII (all variants)
+ * @mode: the phy_interface_t enum
+ */
+static inline bool phy_interface_mode_is_rgmii(phy_interface_t mode)
+{
+	return mode >= PHY_INTERFACE_MODE_RGMII &&
+		mode <= PHY_INTERFACE_MODE_RGMII_TXID;
+};
+
+/**
  * phy_write_mmd_indirect - writes data to the MMD registers
  * @phydev: The PHY device
  * @prtad: MMD Address
diff -druNp --no-dereference linux-libre-3.18.91-gnu/include/linux/sh_eth.h linux-libre-3.18.92-gnu/include/linux/sh_eth.h
--- linux-libre-3.18.91-gnu/include/linux/sh_eth.h	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/include/linux/sh_eth.h	2018-01-17 03:29:32.000000000 -0500
@@ -16,7 +16,6 @@ struct sh_eth_plat_data {
 	unsigned char mac_addr[ETH_ALEN];
 	unsigned no_ether_link:1;
 	unsigned ether_link_active_low:1;
-	unsigned needs_init:1;
 };
 
 #endif
diff -druNp --no-dereference linux-libre-3.18.91-gnu/include/target/target_core_base.h linux-libre-3.18.92-gnu/include/target/target_core_base.h
--- linux-libre-3.18.91-gnu/include/target/target_core_base.h	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/include/target/target_core_base.h	2018-01-17 03:29:32.000000000 -0500
@@ -538,6 +538,7 @@ struct se_cmd {
 #define CMD_T_BUSY		(1 << 9)
 #define CMD_T_TAS		(1 << 10)
 #define CMD_T_FABRIC_STOP	(1 << 11)
+#define CMD_T_PRE_EXECUTE	(1 << 12)
 	spinlock_t		t_state_lock;
 	struct completion	t_transport_stop_comp;
 
diff -druNp --no-dereference linux-libre-3.18.91-gnu/kernel/acct.c linux-libre-3.18.92-gnu/kernel/acct.c
--- linux-libre-3.18.91-gnu/kernel/acct.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/kernel/acct.c	2018-01-17 03:29:32.000000000 -0500
@@ -96,7 +96,7 @@ static int check_free_space(struct bsd_a
 {
 	struct kstatfs sbuf;
 
-	if (time_is_before_jiffies(acct->needcheck))
+	if (time_is_after_jiffies(acct->needcheck))
 		goto out;
 
 	/* May block */
diff -druNp --no-dereference linux-libre-3.18.91-gnu/kernel/events/core.c linux-libre-3.18.92-gnu/kernel/events/core.c
--- linux-libre-3.18.91-gnu/kernel/events/core.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/kernel/events/core.c	2018-01-17 03:29:32.000000000 -0500
@@ -7414,6 +7414,37 @@ static void mutex_lock_double(struct mut
 	mutex_lock_nested(b, SINGLE_DEPTH_NESTING);
 }
 
+/*
+ * Variation on perf_event_ctx_lock_nested(), except we take two context
+ * mutexes.
+ */
+static struct perf_event_context *
+__perf_event_ctx_lock_double(struct perf_event *group_leader,
+			     struct perf_event_context *ctx)
+{
+	struct perf_event_context *gctx;
+
+again:
+	rcu_read_lock();
+	gctx = ACCESS_ONCE(group_leader->ctx);
+	if (!atomic_inc_not_zero(&gctx->refcount)) {
+		rcu_read_unlock();
+		goto again;
+	}
+	rcu_read_unlock();
+
+	mutex_lock_double(&gctx->mutex, &ctx->mutex);
+
+	if (group_leader->ctx != gctx) {
+		mutex_unlock(&ctx->mutex);
+		mutex_unlock(&gctx->mutex);
+		put_ctx(gctx);
+		goto again;
+	}
+
+	return gctx;
+}
+
 /**
  * sys_perf_event_open - open a performance event, associate it to a task/cpu
  *
@@ -7626,14 +7657,31 @@ SYSCALL_DEFINE5(perf_event_open,
 	}
 
 	if (move_group) {
-		gctx = group_leader->ctx;
+		gctx = __perf_event_ctx_lock_double(group_leader, ctx);
+
+		/*
+		 * Check if we raced against another sys_perf_event_open() call
+		 * moving the software group underneath us.
+		 */
+		if (!(group_leader->group_flags & PERF_GROUP_SOFTWARE)) {
+			/*
+			 * If someone moved the group out from under us, check
+			 * if this new event wound up on the same ctx, if so
+			 * its the regular !move_group case, otherwise fail.
+			 */
+			if (gctx != ctx) {
+				err = -EINVAL;
+				goto err_locked;
+			} else {
+				perf_event_ctx_unlock(group_leader, gctx);
+				move_group = 0;
+			}
+		}
 
 		/*
 		 * See perf_event_ctx_lock() for comments on the details
 		 * of swizzling perf_event::ctx.
 		 */
-		mutex_lock_double(&gctx->mutex, &ctx->mutex);
-
 		perf_remove_from_context(group_leader, false);
 
 		/*
@@ -7674,7 +7722,7 @@ SYSCALL_DEFINE5(perf_event_open,
 	perf_unpin_context(ctx);
 
 	if (move_group) {
-		mutex_unlock(&gctx->mutex);
+		perf_event_ctx_unlock(group_leader, gctx);
 		put_ctx(gctx);
 	}
 	mutex_unlock(&ctx->mutex);
@@ -7703,6 +7751,11 @@ SYSCALL_DEFINE5(perf_event_open,
 	fd_install(event_fd, event_file);
 	return event_fd;
 
+err_locked:
+	if (move_group)
+		perf_event_ctx_unlock(group_leader, gctx);
+	mutex_unlock(&ctx->mutex);
+	fput(event_file);
 err_context:
 	perf_unpin_context(ctx);
 	put_ctx(ctx);
diff -druNp --no-dereference linux-libre-3.18.91-gnu/kernel/signal.c linux-libre-3.18.92-gnu/kernel/signal.c
--- linux-libre-3.18.91-gnu/kernel/signal.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/kernel/signal.c	2018-01-17 03:29:32.000000000 -0500
@@ -72,7 +72,7 @@ static int sig_task_ignored(struct task_
 	handler = sig_handler(t, sig);
 
 	if (unlikely(t->signal->flags & SIGNAL_UNKILLABLE) &&
-			handler == SIG_DFL && !force)
+	    handler == SIG_DFL && !(force && sig_kernel_only(sig)))
 		return 1;
 
 	return sig_handler_ignored(handler, sig);
@@ -88,13 +88,15 @@ static int sig_ignored(struct task_struc
 	if (sigismember(&t->blocked, sig) || sigismember(&t->real_blocked, sig))
 		return 0;
 
-	if (!sig_task_ignored(t, sig, force))
-		return 0;
-
 	/*
-	 * Tracers may want to know about even ignored signals.
+	 * Tracers may want to know about even ignored signal unless it
+	 * is SIGKILL which can't be reported anyway but can be ignored
+	 * by SIGNAL_UNKILLABLE task.
 	 */
-	return !t->ptrace;
+	if (t->ptrace && sig != SIGKILL)
+		return 0;
+
+	return sig_task_ignored(t, sig, force);
 }
 
 /*
@@ -968,9 +970,9 @@ static void complete_signal(int sig, str
 	 * then start taking the whole group down immediately.
 	 */
 	if (sig_fatal(p, sig) &&
-	    !(signal->flags & (SIGNAL_UNKILLABLE | SIGNAL_GROUP_EXIT)) &&
+	    !(signal->flags & SIGNAL_GROUP_EXIT) &&
 	    !sigismember(&t->real_blocked, sig) &&
-	    (sig == SIGKILL || !t->ptrace)) {
+	    (sig == SIGKILL || !p->ptrace)) {
 		/*
 		 * This signal will be fatal to the whole group.
 		 */
diff -druNp --no-dereference linux-libre-3.18.91-gnu/Makefile linux-libre-3.18.92-gnu/Makefile
--- linux-libre-3.18.91-gnu/Makefile	2018-01-03 14:46:01.000000000 -0500
+++ linux-libre-3.18.92-gnu/Makefile	2018-01-17 18:24:04.000000000 -0500
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 18
-SUBLEVEL = 91
+SUBLEVEL = 92
 EXTRAVERSION =-gnu
 NAME = Diseased Newt
 
diff -druNp --no-dereference linux-libre-3.18.91-gnu/net/8021q/vlan.c linux-libre-3.18.92-gnu/net/8021q/vlan.c
--- linux-libre-3.18.91-gnu/net/8021q/vlan.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/net/8021q/vlan.c	2018-01-17 03:29:32.000000000 -0500
@@ -111,12 +111,7 @@ void unregister_vlan_dev(struct net_devi
 		vlan_gvrp_uninit_applicant(real_dev);
 	}
 
-	/* Take it out of our own structures, but be sure to interlock with
-	 * HW accelerating devices or SW vlan input packet processing if
-	 * VLAN is not 0 (leave it there for 802.1p).
-	 */
-	if (vlan_id)
-		vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);
+	vlan_vid_del(real_dev, vlan->vlan_proto, vlan_id);
 
 	/* Get rid of the vlan's reference to real_dev */
 	dev_put(real_dev);
diff -druNp --no-dereference linux-libre-3.18.91-gnu/net/bluetooth/l2cap_core.c linux-libre-3.18.92-gnu/net/bluetooth/l2cap_core.c
--- linux-libre-3.18.91-gnu/net/bluetooth/l2cap_core.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/net/bluetooth/l2cap_core.c	2018-01-17 03:29:32.000000000 -0500
@@ -3317,9 +3317,10 @@ static int l2cap_parse_conf_req(struct l
 			break;
 
 		case L2CAP_CONF_EFS:
-			remote_efs = 1;
-			if (olen == sizeof(efs))
+			if (olen == sizeof(efs)) {
+				remote_efs = 1;
 				memcpy(&efs, (void *) val, olen);
+			}
 			break;
 
 		case L2CAP_CONF_EWS:
@@ -3538,16 +3539,17 @@ static int l2cap_parse_conf_rsp(struct l
 			break;
 
 		case L2CAP_CONF_EFS:
-			if (olen == sizeof(efs))
+			if (olen == sizeof(efs)) {
 				memcpy(&efs, (void *)val, olen);
 
-			if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
-			    efs.stype != L2CAP_SERV_NOTRAFIC &&
-			    efs.stype != chan->local_stype)
-				return -ECONNREFUSED;
+				if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
+				    efs.stype != L2CAP_SERV_NOTRAFIC &&
+				    efs.stype != chan->local_stype)
+					return -ECONNREFUSED;
 
-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs),
-					   (unsigned long) &efs, endptr - ptr);
+				l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs),
+						   (unsigned long) &efs, endptr - ptr);
+			}
 			break;
 
 		case L2CAP_CONF_FCS:
diff -druNp --no-dereference linux-libre-3.18.91-gnu/net/rds/rdma.c linux-libre-3.18.92-gnu/net/rds/rdma.c
--- linux-libre-3.18.91-gnu/net/rds/rdma.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/net/rds/rdma.c	2018-01-17 03:29:32.000000000 -0500
@@ -516,6 +516,9 @@ int rds_rdma_extra_size(struct rds_rdma_
 
 	local_vec = (struct rds_iovec __user *)(unsigned long) args->local_vec_addr;
 
+	if (args->nr_local == 0)
+		return -EINVAL;
+
 	/* figure out the number of pages in the vector */
 	for (i = 0; i < args->nr_local; i++) {
 		if (copy_from_user(&vec, &local_vec[i],
@@ -863,6 +866,7 @@ int rds_cmsg_atomic(struct rds_sock *rs,
 err:
 	if (page)
 		put_page(page);
+	rm->atomic.op_active = 0;
 	kfree(rm->atomic.op_notifier);
 
 	return ret;
diff -druNp --no-dereference linux-libre-3.18.91-gnu/sound/core/oss/pcm_oss.c linux-libre-3.18.92-gnu/sound/core/oss/pcm_oss.c
--- linux-libre-3.18.91-gnu/sound/core/oss/pcm_oss.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/sound/core/oss/pcm_oss.c	2018-01-17 03:29:32.000000000 -0500
@@ -465,7 +465,6 @@ static int snd_pcm_hw_param_near(struct
 		v = snd_pcm_hw_param_last(pcm, params, var, dir);
 	else
 		v = snd_pcm_hw_param_first(pcm, params, var, dir);
-	snd_BUG_ON(v < 0);
 	return v;
 }
 
@@ -1371,8 +1370,11 @@ static ssize_t snd_pcm_oss_write1(struct
 
 	if ((tmp = snd_pcm_oss_make_ready(substream)) < 0)
 		return tmp;
-	mutex_lock(&runtime->oss.params_lock);
 	while (bytes > 0) {
+		if (mutex_lock_interruptible(&runtime->oss.params_lock)) {
+			tmp = -ERESTARTSYS;
+			break;
+		}
 		if (bytes < runtime->oss.period_bytes || runtime->oss.buffer_used > 0) {
 			tmp = bytes;
 			if (tmp + runtime->oss.buffer_used > runtime->oss.period_bytes)
@@ -1416,14 +1418,18 @@ static ssize_t snd_pcm_oss_write1(struct
 			xfer += tmp;
 			if ((substream->f_flags & O_NONBLOCK) != 0 &&
 			    tmp != runtime->oss.period_bytes)
-				break;
+				tmp = -EAGAIN;
 		}
-	}
-	mutex_unlock(&runtime->oss.params_lock);
-	return xfer;
-
  err:
-	mutex_unlock(&runtime->oss.params_lock);
+		mutex_unlock(&runtime->oss.params_lock);
+		if (tmp < 0)
+			break;
+		if (signal_pending(current)) {
+			tmp = -ERESTARTSYS;
+			break;
+		}
+		tmp = 0;
+	}
 	return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
 }
 
@@ -1471,8 +1477,11 @@ static ssize_t snd_pcm_oss_read1(struct
 
 	if ((tmp = snd_pcm_oss_make_ready(substream)) < 0)
 		return tmp;
-	mutex_lock(&runtime->oss.params_lock);
 	while (bytes > 0) {
+		if (mutex_lock_interruptible(&runtime->oss.params_lock)) {
+			tmp = -ERESTARTSYS;
+			break;
+		}
 		if (bytes < runtime->oss.period_bytes || runtime->oss.buffer_used > 0) {
 			if (runtime->oss.buffer_used == 0) {
 				tmp = snd_pcm_oss_read2(substream, runtime->oss.buffer, runtime->oss.period_bytes, 1);
@@ -1503,12 +1512,16 @@ static ssize_t snd_pcm_oss_read1(struct
 			bytes -= tmp;
 			xfer += tmp;
 		}
-	}
-	mutex_unlock(&runtime->oss.params_lock);
-	return xfer;
-
  err:
-	mutex_unlock(&runtime->oss.params_lock);
+		mutex_unlock(&runtime->oss.params_lock);
+		if (tmp < 0)
+			break;
+		if (signal_pending(current)) {
+			tmp = -ERESTARTSYS;
+			break;
+		}
+		tmp = 0;
+	}
 	return xfer > 0 ? (snd_pcm_sframes_t)xfer : tmp;
 }
 
diff -druNp --no-dereference linux-libre-3.18.91-gnu/sound/core/oss/pcm_plugin.c linux-libre-3.18.92-gnu/sound/core/oss/pcm_plugin.c
--- linux-libre-3.18.91-gnu/sound/core/oss/pcm_plugin.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/sound/core/oss/pcm_plugin.c	2018-01-17 03:29:32.000000000 -0500
@@ -591,18 +591,26 @@ snd_pcm_sframes_t snd_pcm_plug_write_tra
 	snd_pcm_sframes_t frames = size;
 
 	plugin = snd_pcm_plug_first(plug);
-	while (plugin && frames > 0) {
+	while (plugin) {
+		if (frames <= 0)
+			return frames;
 		if ((next = plugin->next) != NULL) {
 			snd_pcm_sframes_t frames1 = frames;
-			if (plugin->dst_frames)
+			if (plugin->dst_frames) {
 				frames1 = plugin->dst_frames(plugin, frames);
+				if (frames1 <= 0)
+					return frames1;
+			}
 			if ((err = next->client_channels(next, frames1, &dst_channels)) < 0) {
 				return err;
 			}
 			if (err != frames1) {
 				frames = err;
-				if (plugin->src_frames)
+				if (plugin->src_frames) {
 					frames = plugin->src_frames(plugin, frames1);
+					if (frames <= 0)
+						return frames;
+				}
 			}
 		} else
 			dst_channels = NULL;
diff -druNp --no-dereference linux-libre-3.18.91-gnu/sound/core/pcm_lib.c linux-libre-3.18.92-gnu/sound/core/pcm_lib.c
--- linux-libre-3.18.91-gnu/sound/core/pcm_lib.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/sound/core/pcm_lib.c	2018-01-17 03:29:32.000000000 -0500
@@ -1633,7 +1633,7 @@ int snd_pcm_hw_param_first(struct snd_pc
 		return changed;
 	if (params->rmask) {
 		int err = snd_pcm_hw_refine(pcm, params);
-		if (snd_BUG_ON(err < 0))
+		if (err < 0)
 			return err;
 	}
 	return snd_pcm_hw_param_value(params, var, dir);
@@ -1680,7 +1680,7 @@ int snd_pcm_hw_param_last(struct snd_pcm
 		return changed;
 	if (params->rmask) {
 		int err = snd_pcm_hw_refine(pcm, params);
-		if (snd_BUG_ON(err < 0))
+		if (err < 0)
 			return err;
 	}
 	return snd_pcm_hw_param_value(params, var, dir);
diff -druNp --no-dereference linux-libre-3.18.91-gnu/sound/drivers/aloop.c linux-libre-3.18.92-gnu/sound/drivers/aloop.c
--- linux-libre-3.18.91-gnu/sound/drivers/aloop.c	2018-01-02 14:05:10.000000000 -0500
+++ linux-libre-3.18.92-gnu/sound/drivers/aloop.c	2018-01-17 03:29:32.000000000 -0500
@@ -39,6 +39,7 @@
 #include <sound/core.h>
 #include <sound/control.h>
 #include <sound/pcm.h>
+#include <sound/pcm_params.h>
 #include <sound/info.h>
 #include <sound/initval.h>
 
@@ -306,19 +307,6 @@ static int loopback_trigger(struct snd_p
 	return 0;
 }
 
-static void params_change_substream(struct loopback_pcm *dpcm,
-				    struct snd_pcm_runtime *runtime)
-{
-	struct snd_pcm_runtime *dst_runtime;
-
-	if (dpcm == NULL || dpcm->substream == NULL)
-		return;
-	dst_runtime = dpcm->substream->runtime;
-	if (dst_runtime == NULL)
-		return;
-	dst_runtime->hw = dpcm->cable->hw;
-}
-
 static void params_change(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
@@ -330,10 +318,6 @@ static void params_change(struct snd_pcm
 	cable->hw.rate_max = runtime->rate;
 	cable->hw.channels_min = runtime->channels;
 	cable->hw.channels_max = runtime->channels;
-	params_change_substream(cable->streams[SNDRV_PCM_STREAM_PLAYBACK],
-				runtime);
-	params_change_substream(cable->streams[SNDRV_PCM_STREAM_CAPTURE],
-				runtime);
 }
 
 static int loopback_prepare(struct snd_pcm_substream *substream)
@@ -621,26 +605,29 @@ static unsigned int get_cable_index(stru
 static int rule_format(struct snd_pcm_hw_params *params,
 		       struct snd_pcm_hw_rule *rule)
 {
+	struct loopback_pcm *dpcm = rule->private;
+	struct loopback_cable *cable = dpcm->cable;
+	struct snd_mask m;
 
-	struct snd_pcm_hardware *hw = rule->private;
-	struct snd_mask *maskp = hw_param_mask(params, rule->var);
-
-	maskp->bits[0] &= (u_int32_t)hw->formats;
-	maskp->bits[1] &= (u_int32_t)(hw->formats >> 32);
-	memset(maskp->bits + 2, 0, (SNDRV_MASK_MAX-64) / 8); /* clear rest */
-	if (! maskp->bits[0] && ! maskp->bits[1])
-		return -EINVAL;
-	return 0;
+	snd_mask_none(&m);
+	mutex_lock(&dpcm->loopback->cable_lock);
+	m.bits[0] = (u_int32_t)cable->hw.formats;
+	m.bits[1] = (u_int32_t)(cable->hw.formats >> 32);
+	mutex_unlock(&dpcm->loopback->cable_lock);
+	return snd_mask_refine(hw_param_mask(params, rule->var), &m);
 }
 
 static int rule_rate(struct snd_pcm_hw_params *params,
 		     struct snd_pcm_hw_rule *rule)
 {
-	struct snd_pcm_hardware *hw = rule->private;
+	struct loopback_pcm *dpcm = rule->private;
+	struct loopback_cable *cable = dpcm->cable;
 	struct snd_interval t;
 
-        t.min = hw->rate_min;
-        t.max = hw->rate_max;
+	mutex_lock(&dpcm->loopback->cable_lock);
+	t.min = cable->hw.rate_min;
+	t.max = cable->hw.rate_max;
+	mutex_unlock(&dpcm->loopback->cable_lock);
         t.openmin = t.openmax = 0;
         t.integer = 0;
 	return snd_interval_refine(hw_param_interval(params, rule->var), &t);
@@ -649,22 +636,44 @@ static int rule_rate(struct snd_pcm_hw_p
 static int rule_channels(struct snd_pcm_hw_params *params,
 			 struct snd_pcm_hw_rule *rule)
 {
-	struct snd_pcm_hardware *hw = rule->private;
+	struct loopback_pcm *dpcm = rule->private;
+	struct loopback_cable *cable = dpcm->cable;
 	struct snd_interval t;
 
-        t.min = hw->channels_min;
-        t.max = hw->channels_max;
+	mutex_lock(&dpcm->loopback->cable_lock);
+	t.min = cable->hw.channels_min;
+	t.max = cable->hw.channels_max;
+	mutex_unlock(&dpcm->loopback->cable_lock);
         t.openmin = t.openmax = 0;
         t.integer = 0;
 	return snd_interval_refine(hw_param_interval(params, rule->var), &t);
 }
 
+static void free_cable(struct snd_pcm_substream *substream)
+{
+	struct loopback *loopback = substream->private_data;
+	int dev = get_cable_index(substream);
+	struct loopback_cable *cable;
+
+	cable = loopback->cables[substream->number][dev];
+	if (!cable)
+		return;
+	if (cable->streams[!substream->stream]) {
+		/* other stream is still alive */
+		cable->streams[substream->stream] = NULL;
+	} else {
+		/* free the cable */
+		loopback->cables[substream->number][dev] = NULL;
+		kfree(cable);
+	}
+}
+
 static int loopback_open(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct loopback *loopback = substream->private_data;
 	struct loopback_pcm *dpcm;
-	struct loopback_cable *cable;
+	struct loopback_cable *cable = NULL;
 	int err = 0;
 	int dev = get_cable_index(substream);
 
@@ -683,7 +692,6 @@ static int loopback_open(struct snd_pcm_
 	if (!cable) {
 		cable = kzalloc(sizeof(*cable), GFP_KERNEL);
 		if (!cable) {
-			kfree(dpcm);
 			err = -ENOMEM;
 			goto unlock;
 		}
@@ -701,19 +709,19 @@ static int loopback_open(struct snd_pcm_
 	/* are cached -> they do not reflect the actual state */
 	err = snd_pcm_hw_rule_add(runtime, 0,
 				  SNDRV_PCM_HW_PARAM_FORMAT,
-				  rule_format, &runtime->hw,
+				  rule_format, dpcm,
 				  SNDRV_PCM_HW_PARAM_FORMAT, -1);
 	if (err < 0)
 		goto unlock;
 	err = snd_pcm_hw_rule_add(runtime, 0,
 				  SNDRV_PCM_HW_PARAM_RATE,
-				  rule_rate, &runtime->hw,
+				  rule_rate, dpcm,
 				  SNDRV_PCM_HW_PARAM_RATE, -1);
 	if (err < 0)
 		goto unlock;
 	err = snd_pcm_hw_rule_add(runtime, 0,
 				  SNDRV_PCM_HW_PARAM_CHANNELS,
-				  rule_channels, &runtime->hw,
+				  rule_channels, dpcm,
 				  SNDRV_PCM_HW_PARAM_CHANNELS, -1);
 	if (err < 0)
 		goto unlock;
@@ -725,6 +733,10 @@ static int loopback_open(struct snd_pcm_
 	else
 		runtime->hw = cable->hw;
  unlock:
+	if (err < 0) {
+		free_cable(substream);
+		kfree(dpcm);
+	}
 	mutex_unlock(&loopback->cable_lock);
 	return err;
 }
@@ -733,20 +745,10 @@ static int loopback_close(struct snd_pcm
 {
 	struct loopback *loopback = substream->private_data;
 	struct loopback_pcm *dpcm = substream->runtime->private_data;
-	struct loopback_cable *cable;
-	int dev = get_cable_index(substream);
 
 	loopback_timer_stop(dpcm);
 	mutex_lock(&loopback->cable_lock);
-	cable = loopback->cables[substream->number][dev];
-	if (cable->streams[!substream->stream]) {
-		/* other stream is still alive */
-		cable->streams[substream->stream] = NULL;
-	} else {
-		/* free the cable */
-		loopback->cables[substream->number][dev] = NULL;
-		kfree(cable);
-	}
+	free_cable(substream);
 	mutex_unlock(&loopback->cable_lock);
 	return 0;
 }
