diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/arc/mm/mmap.c linux-libre-3.18.58-gnu/arch/arc/mm/mmap.c
--- linux-libre-3.18.57-gnu/arch/arc/mm/mmap.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/arc/mm/mmap.c	2017-06-26 01:11:08.000000000 -0400
@@ -64,7 +64,7 @@ arch_get_unmapped_area(struct file *filp
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/arm/mm/mmap.c linux-libre-3.18.58-gnu/arch/arm/mm/mmap.c
--- linux-libre-3.18.57-gnu/arch/arm/mm/mmap.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/arm/mm/mmap.c	2017-06-26 01:11:08.000000000 -0400
@@ -89,7 +89,7 @@ arch_get_unmapped_area(struct file *filp
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -140,7 +140,7 @@ arch_get_unmapped_area_topdown(struct fi
 			addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/frv/mm/elf-fdpic.c linux-libre-3.18.58-gnu/arch/frv/mm/elf-fdpic.c
--- linux-libre-3.18.57-gnu/arch/frv/mm/elf-fdpic.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/frv/mm/elf-fdpic.c	2017-06-26 01:11:08.000000000 -0400
@@ -74,7 +74,7 @@ unsigned long arch_get_unmapped_area(str
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(current->mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			goto success;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/mips/mm/mmap.c linux-libre-3.18.58-gnu/arch/mips/mm/mmap.c
--- linux-libre-3.18.57-gnu/arch/mips/mm/mmap.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/mips/mm/mmap.c	2017-06-26 01:11:08.000000000 -0400
@@ -92,7 +92,7 @@ static unsigned long arch_get_unmapped_a
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/parisc/kernel/sys_parisc.c linux-libre-3.18.58-gnu/arch/parisc/kernel/sys_parisc.c
--- linux-libre-3.18.57-gnu/arch/parisc/kernel/sys_parisc.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/parisc/kernel/sys_parisc.c	2017-06-26 01:11:08.000000000 -0400
@@ -88,7 +88,7 @@ unsigned long arch_get_unmapped_area(str
 		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	unsigned long task_size = TASK_SIZE;
 	int do_color_align, last_mmap;
 	struct vm_unmapped_area_info info;
@@ -115,9 +115,10 @@ unsigned long arch_get_unmapped_area(str
 		else
 			addr = PAGE_ALIGN(addr);
 
-		vma = find_vma(mm, addr);
+		vma = find_vma_prev(mm, addr, &prev);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)) &&
+		    (!prev || addr >= vm_end_gap(prev)))
 			goto found_addr;
 	}
 
@@ -141,7 +142,7 @@ arch_get_unmapped_area_topdown(struct fi
 			  const unsigned long len, const unsigned long pgoff,
 			  const unsigned long flags)
 {
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	int do_color_align, last_mmap;
@@ -175,9 +176,11 @@ arch_get_unmapped_area_topdown(struct fi
 			addr = COLOR_ALIGN(addr, last_mmap, pgoff);
 		else
 			addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
+
+		vma = find_vma_prev(mm, addr, &prev);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)) &&
+		    (!prev || addr >= vm_end_gap(prev)))
 			goto found_addr;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/powerpc/mm/slice.c linux-libre-3.18.58-gnu/arch/powerpc/mm/slice.c
--- linux-libre-3.18.57-gnu/arch/powerpc/mm/slice.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/powerpc/mm/slice.c	2017-06-26 01:11:08.000000000 -0400
@@ -105,7 +105,7 @@ static int slice_area_is_free(struct mm_
 	if ((mm->task_size - len) < addr)
 		return 0;
 	vma = find_vma(mm, addr);
-	return (!vma || (addr + len) <= vma->vm_start);
+	return (!vma || (addr + len) <= vm_start_gap(vma));
 }
 
 static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice)
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/s390/mm/vmem.c linux-libre-3.18.58-gnu/arch/s390/mm/vmem.c
--- linux-libre-3.18.57-gnu/arch/s390/mm/vmem.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/s390/mm/vmem.c	2017-06-26 01:11:08.000000000 -0400
@@ -378,7 +378,7 @@ void __init vmem_map_init(void)
 	ro_end = (unsigned long)&_eshared & PAGE_MASK;
 	for_each_memblock(memory, reg) {
 		start = reg->base;
-		end = reg->base + reg->size - 1;
+		end = reg->base + reg->size;
 		if (start >= ro_end || end <= ro_start)
 			vmem_add_mem(start, end - start, 0);
 		else if (start >= ro_start && end <= ro_end)
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/sh/mm/mmap.c linux-libre-3.18.58-gnu/arch/sh/mm/mmap.c
--- linux-libre-3.18.57-gnu/arch/sh/mm/mmap.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/sh/mm/mmap.c	2017-06-26 01:11:08.000000000 -0400
@@ -63,7 +63,7 @@ unsigned long arch_get_unmapped_area(str
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -113,7 +113,7 @@ arch_get_unmapped_area_topdown(struct fi
 
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/sparc/kernel/sys_sparc_64.c linux-libre-3.18.58-gnu/arch/sparc/kernel/sys_sparc_64.c
--- linux-libre-3.18.57-gnu/arch/sparc/kernel/sys_sparc_64.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/sparc/kernel/sys_sparc_64.c	2017-06-26 01:11:08.000000000 -0400
@@ -118,7 +118,7 @@ unsigned long arch_get_unmapped_area(str
 
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -181,7 +181,7 @@ arch_get_unmapped_area_topdown(struct fi
 
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/sparc/kernel/traps_64.c linux-libre-3.18.58-gnu/arch/sparc/kernel/traps_64.c
--- linux-libre-3.18.57-gnu/arch/sparc/kernel/traps_64.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/sparc/kernel/traps_64.c	2017-06-26 01:11:08.000000000 -0400
@@ -85,7 +85,7 @@ static void dump_tl1_traplog(struct tl1_
 
 void bad_trap(struct pt_regs *regs, long lvl)
 {
-	char buffer[32];
+	char buffer[36];
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "bad trap", regs,
@@ -116,7 +116,7 @@ void bad_trap(struct pt_regs *regs, long
 
 void bad_trap_tl1(struct pt_regs *regs, long lvl)
 {
-	char buffer[32];
+	char buffer[36];
 	
 	if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs,
 		       0, lvl, SIGTRAP) == NOTIFY_STOP)
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/sparc/mm/hugetlbpage.c linux-libre-3.18.58-gnu/arch/sparc/mm/hugetlbpage.c
--- linux-libre-3.18.57-gnu/arch/sparc/mm/hugetlbpage.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/sparc/mm/hugetlbpage.c	2017-06-26 01:11:08.000000000 -0400
@@ -115,7 +115,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, HPAGE_SIZE);
 		vma = find_vma(mm, addr);
 		if (task_size - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/tile/mm/hugetlbpage.c linux-libre-3.18.58-gnu/arch/tile/mm/hugetlbpage.c
--- linux-libre-3.18.57-gnu/arch/tile/mm/hugetlbpage.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/tile/mm/hugetlbpage.c	2017-06-26 01:11:08.000000000 -0400
@@ -237,7 +237,7 @@ unsigned long hugetlb_get_unmapped_area(
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (current->mm->get_unmapped_area == arch_get_unmapped_area)
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/x86/kernel/sys_x86_64.c linux-libre-3.18.58-gnu/arch/x86/kernel/sys_x86_64.c
--- linux-libre-3.18.57-gnu/arch/x86/kernel/sys_x86_64.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/x86/kernel/sys_x86_64.c	2017-06-26 01:11:08.000000000 -0400
@@ -127,7 +127,7 @@ arch_get_unmapped_area(struct file *filp
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (end - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
@@ -166,7 +166,7 @@ arch_get_unmapped_area_topdown(struct fi
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/x86/mm/hugetlbpage.c linux-libre-3.18.58-gnu/arch/x86/mm/hugetlbpage.c
--- linux-libre-3.18.57-gnu/arch/x86/mm/hugetlbpage.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/x86/mm/hugetlbpage.c	2017-06-26 01:11:08.000000000 -0400
@@ -144,7 +144,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 	if (mm->get_unmapped_area == arch_get_unmapped_area)
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/x86/mm/numa_32.c linux-libre-3.18.58-gnu/arch/x86/mm/numa_32.c
--- linux-libre-3.18.57-gnu/arch/x86/mm/numa_32.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/x86/mm/numa_32.c	2017-06-26 01:11:08.000000000 -0400
@@ -100,5 +100,6 @@ void __init initmem_init(void)
 	printk(KERN_DEBUG "High memory starts at vaddr %08lx\n",
 			(ulong) pfn_to_kaddr(highstart_pfn));
 
+	__vmalloc_start_set = true;
 	setup_bootmem_allocator();
 }
diff -druNp --no-dereference linux-libre-3.18.57-gnu/arch/xtensa/kernel/syscall.c linux-libre-3.18.58-gnu/arch/xtensa/kernel/syscall.c
--- linux-libre-3.18.57-gnu/arch/xtensa/kernel/syscall.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/arch/xtensa/kernel/syscall.c	2017-06-26 01:11:08.000000000 -0400
@@ -86,7 +86,7 @@ unsigned long arch_get_unmapped_area(str
 		/* At this point:  (!vmm || addr < vmm->vm_end). */
 		if (TASK_SIZE - len < addr)
 			return -ENOMEM;
-		if (!vmm || addr + len <= vmm->vm_start)
+		if (!vmm || addr + len <= vm_start_gap(vmm))
 			return addr;
 		addr = vmm->vm_end;
 		if (flags & MAP_SHARED)
diff -druNp --no-dereference linux-libre-3.18.57-gnu/block/partitions/msdos.c linux-libre-3.18.58-gnu/block/partitions/msdos.c
--- linux-libre-3.18.57-gnu/block/partitions/msdos.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/block/partitions/msdos.c	2017-06-26 01:11:08.000000000 -0400
@@ -300,6 +300,8 @@ static void parse_bsd(struct parsed_part
 			continue;
 		bsd_start = le32_to_cpu(p->p_offset);
 		bsd_size = le32_to_cpu(p->p_size);
+		if (memcmp(flavour, "bsd\0", 4) == 0)
+			bsd_start += offset;
 		if (offset == bsd_start && size == bsd_size)
 			/* full parent partition, we have it already */
 			continue;
diff -druNp --no-dereference linux-libre-3.18.57-gnu/Documentation/kernel-parameters.txt linux-libre-3.18.58-gnu/Documentation/kernel-parameters.txt
--- linux-libre-3.18.57-gnu/Documentation/kernel-parameters.txt	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/Documentation/kernel-parameters.txt	2017-06-26 01:11:08.000000000 -0400
@@ -3324,6 +3324,13 @@ bytes respectively. Such letter suffixes
 	spia_pedr=
 	spia_peddr=
 
+	stack_guard_gap=	[MM]
+			override the default stack gap protection. The value
+			is in page units and it defines how many pages prior
+			to (for stacks growing down) resp. after (for stacks
+			growing up) the main stack are reserved for no other
+			mapping. Default value is 256 pages.
+
 	stacktrace	[FTRACE]
 			Enabled the stack tracer on boot up.
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/cpufreq/cpufreq_conservative.c linux-libre-3.18.58-gnu/drivers/cpufreq/cpufreq_conservative.c
--- linux-libre-3.18.57-gnu/drivers/cpufreq/cpufreq_conservative.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/cpufreq/cpufreq_conservative.c	2017-06-26 01:11:08.000000000 -0400
@@ -204,8 +204,8 @@ static ssize_t store_down_threshold(stru
 	int ret;
 	ret = sscanf(buf, "%u", &input);
 
-	/* cannot be lower than 11 otherwise freq will not fall */
-	if (ret != 1 || input < 11 || input > 100 ||
+	/* cannot be lower than 1 otherwise freq will not fall */
+	if (ret != 1 || input < 1 || input > 100 ||
 			input >= cs_tuners->up_threshold)
 		return -EINVAL;
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/iio/proximity/as3935.c linux-libre-3.18.58-gnu/drivers/iio/proximity/as3935.c
--- linux-libre-3.18.57-gnu/drivers/iio/proximity/as3935.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/iio/proximity/as3935.c	2017-06-26 01:11:08.000000000 -0400
@@ -256,8 +256,6 @@ static irqreturn_t as3935_interrupt_hand
 
 static void calibrate_as3935(struct as3935_state *st)
 {
-	mutex_lock(&st->lock);
-
 	/* mask disturber interrupt bit */
 	as3935_write(st, AS3935_INT, BIT(5));
 
@@ -267,8 +265,6 @@ static void calibrate_as3935(struct as39
 
 	mdelay(2);
 	as3935_write(st, AS3935_TUNE_CAP, (st->tune_cap / TUNE_CAP_DIV));
-
-	mutex_unlock(&st->lock);
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -305,6 +301,8 @@ static int as3935_resume(struct spi_devi
 	val &= ~AS3935_AFE_PWR_BIT;
 	ret = as3935_write(st, AS3935_AFE_GAIN, val);
 
+	calibrate_as3935(st);
+
 err_resume:
 	mutex_unlock(&st->lock);
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c linux-libre-3.18.58-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c
--- linux-libre-3.18.57-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/media/usb/pvrusb2/pvrusb2-eeprom.c	2017-06-26 01:11:08.000000000 -0400
@@ -123,15 +123,10 @@ int pvr2_eeprom_analyze(struct pvr2_hdw
 	memset(&tvdata,0,sizeof(tvdata));
 
 	eeprom = pvr2_eeprom_fetch(hdw);
-	if (!eeprom) return -EINVAL;
+	if (!eeprom)
+		return -EINVAL;
 
-	{
-		struct i2c_client fake_client;
-		/* Newer version expects a useless client interface */
-		fake_client.addr = hdw->eeprom_addr;
-		fake_client.adapter = &hdw->i2c_adap;
-		tveeprom_hauppauge_analog(&fake_client,&tvdata,eeprom);
-	}
+	tveeprom_hauppauge_analog(NULL, &tvdata, eeprom);
 
 	trace_eeprom("eeprom assumed v4l tveeprom module");
 	trace_eeprom("eeprom direct call results:");
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/media/v4l2-core/videobuf2-core.c linux-libre-3.18.58-gnu/drivers/media/v4l2-core/videobuf2-core.c
--- linux-libre-3.18.57-gnu/drivers/media/v4l2-core/videobuf2-core.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/media/v4l2-core/videobuf2-core.c	2017-06-26 01:11:08.000000000 -0400
@@ -1120,7 +1120,7 @@ EXPORT_SYMBOL_GPL(vb2_create_bufs);
  */
 void *vb2_plane_vaddr(struct vb2_buffer *vb, unsigned int plane_no)
 {
-	if (plane_no > vb->num_planes || !vb->planes[plane_no].mem_priv)
+	if (plane_no >= vb->num_planes || !vb->planes[plane_no].mem_priv)
 		return NULL;
 
 	return call_ptr_memop(vb, vaddr, vb->planes[plane_no].mem_priv);
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/mfd/omap-usb-tll.c linux-libre-3.18.58-gnu/drivers/mfd/omap-usb-tll.c
--- linux-libre-3.18.57-gnu/drivers/mfd/omap-usb-tll.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/mfd/omap-usb-tll.c	2017-06-26 01:11:08.000000000 -0400
@@ -376,8 +376,8 @@ int omap_tll_init(struct usbhs_omap_plat
 				 * and use SDR Mode
 				 */
 				reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
-					| OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
 					| OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
+				reg |= OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF;
 			} else if (pdata->port_mode[i] ==
 					OMAP_EHCI_PORT_MODE_HSIC) {
 				/*
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/misc/c2port/c2port-duramar2150.c linux-libre-3.18.58-gnu/drivers/misc/c2port/c2port-duramar2150.c
--- linux-libre-3.18.57-gnu/drivers/misc/c2port/c2port-duramar2150.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/misc/c2port/c2port-duramar2150.c	2017-06-26 01:11:08.000000000 -0400
@@ -129,8 +129,8 @@ static int __init duramar2150_c2port_ini
 
 	duramar2150_c2port_dev = c2port_device_register("uc",
 					&duramar2150_c2port_ops, NULL);
-	if (!duramar2150_c2port_dev) {
-		ret = -ENODEV;
+	if (IS_ERR(duramar2150_c2port_dev)) {
+		ret = PTR_ERR(duramar2150_c2port_dev);
 		goto free_region;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/net/can/usb/gs_usb.c linux-libre-3.18.58-gnu/drivers/net/can/usb/gs_usb.c
--- linux-libre-3.18.57-gnu/drivers/net/can/usb/gs_usb.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/net/can/usb/gs_usb.c	2017-06-26 01:11:08.000000000 -0400
@@ -246,6 +246,8 @@ static int gs_cmd_reset(struct gs_usb *g
 			     sizeof(*dm),
 			     1000);
 
+	kfree(dm);
+
 	return rc;
 }
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c linux-libre-3.18.58-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c
--- linux-libre-3.18.57-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/net/ethernet/xilinx/xilinx_emaclite.c	2017-06-26 01:11:08.000000000 -0400
@@ -100,6 +100,14 @@
 /* BUFFER_ALIGN(adr) calculates the number of bytes to the next alignment. */
 #define BUFFER_ALIGN(adr) ((ALIGNMENT - ((u32) adr)) % ALIGNMENT)
 
+#ifdef __BIG_ENDIAN
+#define xemaclite_readl		ioread32be
+#define xemaclite_writel	iowrite32be
+#else
+#define xemaclite_readl		ioread32
+#define xemaclite_writel	iowrite32
+#endif
+
 /**
  * struct net_local - Our private per device data
  * @ndev:		instance of the network device
@@ -158,15 +166,15 @@ static void xemaclite_enable_interrupts(
 	u32 reg_data;
 
 	/* Enable the Tx interrupts for the first Buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
-		     drvdata->base_addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
+			 drvdata->base_addr + XEL_TSR_OFFSET);
 
 	/* Enable the Rx interrupts for the first buffer */
-	__raw_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
+	xemaclite_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
 
 	/* Enable the Global Interrupt Enable */
-	__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
+	xemaclite_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
 }
 
 /**
@@ -181,17 +189,17 @@ static void xemaclite_disable_interrupts
 	u32 reg_data;
 
 	/* Disable the Global Interrupt Enable */
-	__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
+	xemaclite_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
 
 	/* Disable the Tx interrupts for the first buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
-		     drvdata->base_addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
+			 drvdata->base_addr + XEL_TSR_OFFSET);
 
 	/* Disable the Rx interrupts for the first buffer */
-	reg_data = __raw_readl(drvdata->base_addr + XEL_RSR_OFFSET);
-	__raw_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
-		     drvdata->base_addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(drvdata->base_addr + XEL_RSR_OFFSET);
+	xemaclite_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
+			 drvdata->base_addr + XEL_RSR_OFFSET);
 }
 
 /**
@@ -323,7 +331,7 @@ static int xemaclite_send_data(struct ne
 		byte_count = ETH_FRAME_LEN;
 
 	/* Check if the expected buffer is available */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 	if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
 	     XEL_TSR_XMIT_ACTIVE_MASK)) == 0) {
 
@@ -336,7 +344,7 @@ static int xemaclite_send_data(struct ne
 
 		addr = (void __iomem __force *)((u32 __force)addr ^
 						 XEL_BUFFER_OFFSET);
-		reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+		reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 
 		if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
 		     XEL_TSR_XMIT_ACTIVE_MASK)) != 0)
@@ -347,16 +355,16 @@ static int xemaclite_send_data(struct ne
 	/* Write the frame to the buffer */
 	xemaclite_aligned_write(data, (u32 __force *) addr, byte_count);
 
-	__raw_writel((byte_count & XEL_TPLR_LENGTH_MASK),
-		     addr + XEL_TPLR_OFFSET);
+	xemaclite_writel((byte_count & XEL_TPLR_LENGTH_MASK),
+			 addr + XEL_TPLR_OFFSET);
 
 	/* Update the Tx Status Register to indicate that there is a
 	 * frame to send. Set the XEL_TSR_XMIT_ACTIVE_MASK flag which
 	 * is used by the interrupt handler to check whether a frame
 	 * has been transmitted */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
 	reg_data |= (XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_XMIT_ACTIVE_MASK);
-	__raw_writel(reg_data, addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data, addr + XEL_TSR_OFFSET);
 
 	return 0;
 }
@@ -371,7 +379,7 @@ static int xemaclite_send_data(struct ne
  *
  * Return:	Total number of bytes received
  */
-static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
+static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data, int maxlen)
 {
 	void __iomem *addr;
 	u16 length, proto_type;
@@ -381,7 +389,7 @@ static u16 xemaclite_recv_data(struct ne
 	addr = (drvdata->base_addr + drvdata->next_rx_buf_to_use);
 
 	/* Verify which buffer has valid data */
-	reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 
 	if ((reg_data & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
 		if (drvdata->rx_ping_pong != 0)
@@ -398,27 +406,28 @@ static u16 xemaclite_recv_data(struct ne
 			return 0;	/* No data was available */
 
 		/* Verify that buffer has valid data */
-		reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+		reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 		if ((reg_data & XEL_RSR_RECV_DONE_MASK) !=
 		     XEL_RSR_RECV_DONE_MASK)
 			return 0;	/* No data was available */
 	}
 
 	/* Get the protocol type of the ethernet frame that arrived */
-	proto_type = ((ntohl(__raw_readl(addr + XEL_HEADER_OFFSET +
+	proto_type = ((ntohl(xemaclite_readl(addr + XEL_HEADER_OFFSET +
 			XEL_RXBUFF_OFFSET)) >> XEL_HEADER_SHIFT) &
 			XEL_RPLR_LENGTH_MASK);
 
 	/* Check if received ethernet frame is a raw ethernet frame
 	 * or an IP packet or an ARP packet */
-	if (proto_type > (ETH_FRAME_LEN + ETH_FCS_LEN)) {
+	if (proto_type > ETH_DATA_LEN) {
 
 		if (proto_type == ETH_P_IP) {
-			length = ((ntohl(__raw_readl(addr +
+			length = ((ntohl(xemaclite_readl(addr +
 					XEL_HEADER_IP_LENGTH_OFFSET +
 					XEL_RXBUFF_OFFSET)) >>
 					XEL_HEADER_SHIFT) &
 					XEL_RPLR_LENGTH_MASK);
+			length = min_t(u16, length, ETH_DATA_LEN);
 			length += ETH_HLEN + ETH_FCS_LEN;
 
 		} else if (proto_type == ETH_P_ARP)
@@ -431,14 +440,17 @@ static u16 xemaclite_recv_data(struct ne
 		/* Use the length in the frame, plus the header and trailer */
 		length = proto_type + ETH_HLEN + ETH_FCS_LEN;
 
+	if (WARN_ON(length > maxlen))
+		length = maxlen;
+
 	/* Read from the EmacLite device */
 	xemaclite_aligned_read((u32 __force *) (addr + XEL_RXBUFF_OFFSET),
 				data, length);
 
 	/* Acknowledge the frame */
-	reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
 	reg_data &= ~XEL_RSR_RECV_DONE_MASK;
-	__raw_writel(reg_data, addr + XEL_RSR_OFFSET);
+	xemaclite_writel(reg_data, addr + XEL_RSR_OFFSET);
 
 	return length;
 }
@@ -465,14 +477,14 @@ static void xemaclite_update_address(str
 
 	xemaclite_aligned_write(address_ptr, (u32 __force *) addr, ETH_ALEN);
 
-	__raw_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
+	xemaclite_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
 
 	/* Update the MAC address in the EmacLite */
-	reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
-	__raw_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
+	reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
+	xemaclite_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
 
 	/* Wait for EmacLite to finish with the MAC address update */
-	while ((__raw_readl(addr + XEL_TSR_OFFSET) &
+	while ((xemaclite_readl(addr + XEL_TSR_OFFSET) &
 		XEL_TSR_PROG_MAC_ADDR) != 0)
 		;
 }
@@ -605,7 +617,7 @@ static void xemaclite_rx_handler(struct
 
 	skb_reserve(skb, 2);
 
-	len = xemaclite_recv_data(lp, (u8 *) skb->data);
+	len = xemaclite_recv_data(lp, (u8 *) skb->data, len);
 
 	if (!len) {
 		dev->stats.rx_errors++;
@@ -642,32 +654,32 @@ static irqreturn_t xemaclite_interrupt(i
 	u32 tx_status;
 
 	/* Check if there is Rx Data available */
-	if ((__raw_readl(base_addr + XEL_RSR_OFFSET) &
+	if ((xemaclite_readl(base_addr + XEL_RSR_OFFSET) &
 			 XEL_RSR_RECV_DONE_MASK) ||
-	    (__raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
+	    (xemaclite_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
 			 & XEL_RSR_RECV_DONE_MASK))
 
 		xemaclite_rx_handler(dev);
 
 	/* Check if the Transmission for the first buffer is completed */
-	tx_status = __raw_readl(base_addr + XEL_TSR_OFFSET);
+	tx_status = xemaclite_readl(base_addr + XEL_TSR_OFFSET);
 	if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
 		(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
 
 		tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
-		__raw_writel(tx_status, base_addr + XEL_TSR_OFFSET);
+		xemaclite_writel(tx_status, base_addr + XEL_TSR_OFFSET);
 
 		tx_complete = true;
 	}
 
 	/* Check if the Transmission for the second buffer is completed */
-	tx_status = __raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
+	tx_status = xemaclite_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
 	if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
 		(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
 
 		tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
-		__raw_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
-			     XEL_TSR_OFFSET);
+		xemaclite_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
+				 XEL_TSR_OFFSET);
 
 		tx_complete = true;
 	}
@@ -700,7 +712,7 @@ static int xemaclite_mdio_wait(struct ne
 	/* wait for the MDIO interface to not be busy or timeout
 	   after some time.
 	*/
-	while (__raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
+	while (xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
 			XEL_MDIOCTRL_MDIOSTS_MASK) {
 		if (time_before_eq(end, jiffies)) {
 			WARN_ON(1);
@@ -736,17 +748,17 @@ static int xemaclite_mdio_read(struct mi
 	 * MDIO Address register. Set the Status bit in the MDIO Control
 	 * register to start a MDIO read transaction.
 	 */
-	ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
-	__raw_writel(XEL_MDIOADDR_OP_MASK |
-		     ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
-		     lp->base_addr + XEL_MDIOADDR_OFFSET);
-	__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	ctrl_reg = xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(XEL_MDIOADDR_OP_MASK |
+			 ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
+			 lp->base_addr + XEL_MDIOADDR_OFFSET);
+	xemaclite_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	if (xemaclite_mdio_wait(lp))
 		return -ETIMEDOUT;
 
-	rc = __raw_readl(lp->base_addr + XEL_MDIORD_OFFSET);
+	rc = xemaclite_readl(lp->base_addr + XEL_MDIORD_OFFSET);
 
 	dev_dbg(&lp->ndev->dev,
 		"xemaclite_mdio_read(phy_id=%i, reg=%x) == %x\n",
@@ -783,13 +795,13 @@ static int xemaclite_mdio_write(struct m
 	 * Data register. Finally, set the Status bit in the MDIO Control
 	 * register to start a MDIO write transaction.
 	 */
-	ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
-	__raw_writel(~XEL_MDIOADDR_OP_MASK &
-		     ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
-		     lp->base_addr + XEL_MDIOADDR_OFFSET);
-	__raw_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
-	__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	ctrl_reg = xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(~XEL_MDIOADDR_OP_MASK &
+			 ((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
+			 lp->base_addr + XEL_MDIOADDR_OFFSET);
+	xemaclite_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
+	xemaclite_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	return 0;
 }
@@ -834,8 +846,8 @@ static int xemaclite_mdio_setup(struct n
 	/* Enable the MDIO bus by asserting the enable bit in MDIO Control
 	 * register.
 	 */
-	__raw_writel(XEL_MDIOCTRL_MDIOEN_MASK,
-		     lp->base_addr + XEL_MDIOCTRL_OFFSET);
+	xemaclite_writel(XEL_MDIOCTRL_MDIOEN_MASK,
+			 lp->base_addr + XEL_MDIOCTRL_OFFSET);
 
 	bus = mdiobus_alloc();
 	if (!bus) {
@@ -1138,8 +1150,8 @@ static int xemaclite_of_probe(struct pla
 		dev_warn(dev, "No MAC address found\n");
 
 	/* Clear the Tx CSR's in case this is a restart */
-	__raw_writel(0, lp->base_addr + XEL_TSR_OFFSET);
-	__raw_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
+	xemaclite_writel(0, lp->base_addr + XEL_TSR_OFFSET);
+	xemaclite_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
 
 	/* Set the MAC address in the EmacLite device */
 	xemaclite_update_address(lp, ndev->dev_addr);
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c linux-libre-3.18.58-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c
--- linux-libre-3.18.57-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/staging/rtl8188eu/core/rtw_ap.c	2017-06-26 01:11:08.000000000 -0400
@@ -873,7 +873,7 @@ int rtw_check_beacon_data(struct adapter
 		return _FAIL;
 
 
-	if (len > MAX_IE_SZ)
+	if (len < 0 || len > MAX_IE_SZ)
 		return _FAIL;
 
 	pbss_network->IELength = len;
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/tty/serial/efm32-uart.c linux-libre-3.18.58-gnu/drivers/tty/serial/efm32-uart.c
--- linux-libre-3.18.57-gnu/drivers/tty/serial/efm32-uart.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/tty/serial/efm32-uart.c	2017-06-26 01:11:08.000000000 -0400
@@ -27,6 +27,7 @@
 #define UARTn_FRAME		0x04
 #define UARTn_FRAME_DATABITS__MASK	0x000f
 #define UARTn_FRAME_DATABITS(n)		((n) - 3)
+#define UARTn_FRAME_PARITY__MASK	0x0300
 #define UARTn_FRAME_PARITY_NONE		0x0000
 #define UARTn_FRAME_PARITY_EVEN		0x0200
 #define UARTn_FRAME_PARITY_ODD		0x0300
@@ -572,12 +573,16 @@ static void efm32_uart_console_get_optio
 			16 * (4 + (clkdiv >> 6)));
 
 	frame = efm32_uart_read32(efm_port, UARTn_FRAME);
-	if (frame & UARTn_FRAME_PARITY_ODD)
+	switch (frame & UARTn_FRAME_PARITY__MASK) {
+	case UARTn_FRAME_PARITY_ODD:
 		*parity = 'o';
-	else if (frame & UARTn_FRAME_PARITY_EVEN)
+		break;
+	case UARTn_FRAME_PARITY_EVEN:
 		*parity = 'e';
-	else
+		break;
+	default:
 		*parity = 'n';
+	}
 
 	*bits = (frame & UARTn_FRAME_DATABITS__MASK) -
 			UARTn_FRAME_DATABITS(4) + 4;
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/usb/core/hcd.c linux-libre-3.18.58-gnu/drivers/usb/core/hcd.c
--- linux-libre-3.18.57-gnu/drivers/usb/core/hcd.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/usb/core/hcd.c	2017-06-26 01:11:08.000000000 -0400
@@ -2461,6 +2461,7 @@ struct usb_hcd *usb_create_shared_hcd(co
 		hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
 				GFP_KERNEL);
 		if (!hcd->bandwidth_mutex) {
+			kfree(hcd->address0_mutex);
 			kfree(hcd);
 			dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
 			return NULL;
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/usb/core/hub.c linux-libre-3.18.58-gnu/drivers/usb/core/hub.c
--- linux-libre-3.18.57-gnu/drivers/usb/core/hub.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/usb/core/hub.c	2017-06-26 01:11:08.000000000 -0400
@@ -1346,7 +1346,13 @@ static int hub_configure(struct usb_hub
 	if (ret < 0) {
 		message = "can't read hub descriptor";
 		goto fail;
-	} else if (hub->descriptor->bNbrPorts > USB_MAXCHILDREN) {
+	}
+
+	maxchild = USB_MAXCHILDREN;
+	if (hub_is_superspeed(hdev))
+		maxchild = min_t(unsigned, maxchild, USB_SS_MAXPORTS);
+
+	if (hub->descriptor->bNbrPorts > maxchild) {
 		message = "hub has too many ports!";
 		ret = -ENODEV;
 		goto fail;
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/usb/gadget/udc/dummy_hcd.c linux-libre-3.18.58-gnu/drivers/usb/gadget/udc/dummy_hcd.c
--- linux-libre-3.18.57-gnu/drivers/usb/gadget/udc/dummy_hcd.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/usb/gadget/udc/dummy_hcd.c	2017-06-26 01:11:08.000000000 -0400
@@ -1935,7 +1935,7 @@ ss_hub_descriptor(struct usb_hub_descrip
 	desc->wHubCharacteristics = cpu_to_le16(0x0001);
 	desc->bNbrPorts = 1;
 	desc->u.ss.bHubHdrDecLat = 0x04; /* Worst case: 0.4 micro sec*/
-	desc->u.ss.DeviceRemovable = 0xffff;
+	desc->u.ss.DeviceRemovable = 0;
 }
 
 static inline void hub_descriptor(struct usb_hub_descriptor *desc)
@@ -1945,8 +1945,8 @@ static inline void hub_descriptor(struct
 	desc->bDescLength = 9;
 	desc->wHubCharacteristics = cpu_to_le16(0x0001);
 	desc->bNbrPorts = 1;
-	desc->u.hs.DeviceRemovable[0] = 0xff;
-	desc->u.hs.DeviceRemovable[1] = 0xff;
+	desc->u.hs.DeviceRemovable[0] = 0;
+	desc->u.hs.DeviceRemovable[1] = 0xff;	/* PortPwrCtrlMask */
 }
 
 static int dummy_hub_control(
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/usb/host/r8a66597-hcd.c linux-libre-3.18.58-gnu/drivers/usb/host/r8a66597-hcd.c
--- linux-libre-3.18.57-gnu/drivers/usb/host/r8a66597-hcd.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/usb/host/r8a66597-hcd.c	2017-06-26 01:11:08.000000000 -0400
@@ -1269,7 +1269,7 @@ static void set_td_timer(struct r8a66597
 			time = 30;
 			break;
 		default:
-			time = 300;
+			time = 50;
 			break;
 		}
 
@@ -1785,6 +1785,7 @@ static void r8a66597_td_timer(unsigned l
 		pipe = td->pipe;
 		pipe_stop(r8a66597, pipe);
 
+		/* Select a different address or endpoint */
 		new_td = td;
 		do {
 			list_move_tail(&new_td->queue,
@@ -1794,7 +1795,8 @@ static void r8a66597_td_timer(unsigned l
 				new_td = td;
 				break;
 			}
-		} while (td != new_td && td->address == new_td->address);
+		} while (td != new_td && td->address == new_td->address &&
+			td->pipe->info.epnum == new_td->pipe->info.epnum);
 
 		start_transfer(r8a66597, new_td);
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/drivers/usb/host/xhci-pci.c linux-libre-3.18.58-gnu/drivers/usb/host/xhci-pci.c
--- linux-libre-3.18.57-gnu/drivers/usb/host/xhci-pci.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/drivers/usb/host/xhci-pci.c	2017-06-26 01:11:08.000000000 -0400
@@ -185,6 +185,9 @@ static void xhci_pci_quirks(struct devic
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 			pdev->device == 0x1042)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
+	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
+			pdev->device == 0x1142)
+		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 
 	if (xhci->quirks & XHCI_RESET_ON_RESUME)
 		xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
diff -druNp --no-dereference linux-libre-3.18.57-gnu/fs/cifs/connect.c linux-libre-3.18.58-gnu/fs/cifs/connect.c
--- linux-libre-3.18.57-gnu/fs/cifs/connect.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/fs/cifs/connect.c	2017-06-26 01:11:08.000000000 -0400
@@ -400,6 +400,9 @@ cifs_reconnect(struct TCP_Server_Info *s
 		mutex_unlock(&server->srv_mutex);
 	} while (server->tcpStatus == CifsNeedReconnect);
 
+	if (server->tcpStatus == CifsNeedNegotiate)
+		mod_delayed_work(cifsiod_wq, &server->echo, 0);
+
 	return rc;
 }
 
@@ -409,18 +412,27 @@ cifs_echo_request(struct work_struct *wo
 	int rc;
 	struct TCP_Server_Info *server = container_of(work,
 					struct TCP_Server_Info, echo.work);
+	unsigned long echo_interval;
 
 	/*
-	 * We cannot send an echo if it is disabled or until the
-	 * NEGOTIATE_PROTOCOL request is done, which is indicated by
-	 * server->ops->need_neg() == true. Also, no need to ping if
-	 * we got a response recently.
+	 * If we need to renegotiate, set echo interval to zero to
+	 * immediately call echo service where we can renegotiate.
+	 */
+	if (server->tcpStatus == CifsNeedNegotiate)
+		echo_interval = 0;
+	else
+		echo_interval = SMB_ECHO_INTERVAL;
+
+	/*
+	 * We cannot send an echo if it is disabled.
+	 * Also, no need to ping if we got a response recently.
 	 */
 
 	if (server->tcpStatus == CifsNeedReconnect ||
-	    server->tcpStatus == CifsExiting || server->tcpStatus == CifsNew ||
+	    server->tcpStatus == CifsExiting ||
+	    server->tcpStatus == CifsNew ||
 	    (server->ops->can_echo && !server->ops->can_echo(server)) ||
-	    time_before(jiffies, server->lstrp + SMB_ECHO_INTERVAL - HZ))
+	    time_before(jiffies, server->lstrp + echo_interval - HZ))
 		goto requeue_echo;
 
 	rc = server->ops->echo ? server->ops->echo(server) : -ENOSYS;
diff -druNp --no-dereference linux-libre-3.18.57-gnu/fs/configfs/symlink.c linux-libre-3.18.58-gnu/fs/configfs/symlink.c
--- linux-libre-3.18.57-gnu/fs/configfs/symlink.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/fs/configfs/symlink.c	2017-06-26 01:11:08.000000000 -0400
@@ -83,14 +83,13 @@ static int create_link(struct config_ite
 	ret = -ENOMEM;
 	sl = kmalloc(sizeof(struct configfs_symlink), GFP_KERNEL);
 	if (sl) {
-		sl->sl_target = config_item_get(item);
 		spin_lock(&configfs_dirent_lock);
 		if (target_sd->s_type & CONFIGFS_USET_DROPPING) {
 			spin_unlock(&configfs_dirent_lock);
-			config_item_put(item);
 			kfree(sl);
 			return -ENOENT;
 		}
+		sl->sl_target = config_item_get(item);
 		list_add(&sl->sl_list, &target_sd->s_links);
 		spin_unlock(&configfs_dirent_lock);
 		ret = configfs_create_link(sl, parent_item->ci_dentry,
diff -druNp --no-dereference linux-libre-3.18.57-gnu/fs/hugetlbfs/inode.c linux-libre-3.18.58-gnu/fs/hugetlbfs/inode.c
--- linux-libre-3.18.57-gnu/fs/hugetlbfs/inode.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/fs/hugetlbfs/inode.c	2017-06-26 01:11:08.000000000 -0400
@@ -171,7 +171,7 @@ hugetlb_get_unmapped_area(struct file *f
 		addr = ALIGN(addr, huge_page_size(h));
 		vma = find_vma(mm, addr);
 		if (TASK_SIZE - len >= addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)))
 			return addr;
 	}
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/fs/proc/task_mmu.c linux-libre-3.18.58-gnu/fs/proc/task_mmu.c
--- linux-libre-3.18.57-gnu/fs/proc/task_mmu.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/fs/proc/task_mmu.c	2017-06-26 01:11:08.000000000 -0400
@@ -284,11 +284,7 @@ show_map_vma(struct seq_file *m, struct
 
 	/* We don't show the stack guard page in /proc/maps */
 	start = vma->vm_start;
-	if (stack_guard_page_start(vma, start))
-		start += PAGE_SIZE;
 	end = vma->vm_end;
-	if (stack_guard_page_end(vma, end))
-		end -= PAGE_SIZE;
 
 	seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
 	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
diff -druNp --no-dereference linux-libre-3.18.57-gnu/include/linux/log2.h linux-libre-3.18.58-gnu/include/linux/log2.h
--- linux-libre-3.18.57-gnu/include/linux/log2.h	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/include/linux/log2.h	2017-06-26 01:11:08.000000000 -0400
@@ -194,6 +194,17 @@ unsigned long __rounddown_pow_of_two(uns
  *  ... and so on.
  */
 
-#define order_base_2(n) ilog2(roundup_pow_of_two(n))
+static inline __attribute_const__
+int __order_base_2(unsigned long n)
+{
+	return n > 1 ? ilog2(n - 1) + 1 : 0;
+}
 
+#define order_base_2(n)				\
+(						\
+	__builtin_constant_p(n) ? (		\
+		((n) == 0 || (n) == 1) ? 0 :	\
+		ilog2((n) - 1) + 1) :		\
+	__order_base_2(n)			\
+)
 #endif /* _LINUX_LOG2_H */
diff -druNp --no-dereference linux-libre-3.18.57-gnu/include/linux/mm.h linux-libre-3.18.58-gnu/include/linux/mm.h
--- linux-libre-3.18.57-gnu/include/linux/mm.h	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/include/linux/mm.h	2017-06-26 01:11:08.000000000 -0400
@@ -1242,34 +1242,6 @@ int set_page_dirty_lock(struct page *pag
 int clear_page_dirty_for_io(struct page *page);
 int get_cmdline(struct task_struct *task, char *buffer, int buflen);
 
-/* Is the vma a continuation of the stack vma above it? */
-static inline int vma_growsdown(struct vm_area_struct *vma, unsigned long addr)
-{
-	return vma && (vma->vm_end == addr) && (vma->vm_flags & VM_GROWSDOWN);
-}
-
-static inline int stack_guard_page_start(struct vm_area_struct *vma,
-					     unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSDOWN) &&
-		(vma->vm_start == addr) &&
-		!vma_growsdown(vma->vm_prev, addr);
-}
-
-/* Is the vma a continuation of the stack vma below it? */
-static inline int vma_growsup(struct vm_area_struct *vma, unsigned long addr)
-{
-	return vma && (vma->vm_start == addr) && (vma->vm_flags & VM_GROWSUP);
-}
-
-static inline int stack_guard_page_end(struct vm_area_struct *vma,
-					   unsigned long addr)
-{
-	return (vma->vm_flags & VM_GROWSUP) &&
-		(vma->vm_end == addr) &&
-		!vma_growsup(vma->vm_next, addr);
-}
-
 extern struct task_struct *task_of_stack(struct task_struct *task,
 				struct vm_area_struct *vma, bool in_group);
 
@@ -1930,6 +1902,7 @@ void page_cache_async_readahead(struct a
 
 unsigned long max_sane_readahead(unsigned long nr);
 
+extern unsigned long stack_guard_gap;
 /* Generic expand stack which grows the stack according to GROWS{UP,DOWN} */
 extern int expand_stack(struct vm_area_struct *vma, unsigned long address);
 
@@ -1958,6 +1931,30 @@ static inline struct vm_area_struct * fi
 	return vma;
 }
 
+static inline unsigned long vm_start_gap(struct vm_area_struct *vma)
+{
+	unsigned long vm_start = vma->vm_start;
+
+	if (vma->vm_flags & VM_GROWSDOWN) {
+		vm_start -= stack_guard_gap;
+		if (vm_start > vma->vm_start)
+			vm_start = 0;
+	}
+	return vm_start;
+}
+
+static inline unsigned long vm_end_gap(struct vm_area_struct *vma)
+{
+	unsigned long vm_end = vma->vm_end;
+
+	if (vma->vm_flags & VM_GROWSUP) {
+		vm_end += stack_guard_gap;
+		if (vm_end < vma->vm_end)
+			vm_end = -PAGE_SIZE;
+	}
+	return vm_end;
+}
+
 static inline unsigned long vma_pages(struct vm_area_struct *vma)
 {
 	return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
diff -druNp --no-dereference linux-libre-3.18.57-gnu/include/uapi/linux/usb/ch11.h linux-libre-3.18.58-gnu/include/uapi/linux/usb/ch11.h
--- linux-libre-3.18.57-gnu/include/uapi/linux/usb/ch11.h	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/include/uapi/linux/usb/ch11.h	2017-06-26 01:11:08.000000000 -0400
@@ -22,6 +22,9 @@
  */
 #define USB_MAXCHILDREN		31
 
+/* See USB 3.1 spec Table 10-5 */
+#define USB_SS_MAXPORTS		15
+
 /*
  * Hub request types
  */
diff -druNp --no-dereference linux-libre-3.18.57-gnu/kernel/irq/manage.c linux-libre-3.18.58-gnu/kernel/irq/manage.c
--- linux-libre-3.18.57-gnu/kernel/irq/manage.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/kernel/irq/manage.c	2017-06-26 01:11:08.000000000 -0400
@@ -1156,8 +1156,10 @@ __setup_irq(unsigned int irq, struct irq
 			ret = __irq_set_trigger(desc, irq,
 					new->flags & IRQF_TRIGGER_MASK);
 
-			if (ret)
+			if (ret) {
+				irq_release_resources(desc);
 				goto out_mask;
+			}
 		}
 
 		desc->istate &= ~(IRQS_AUTODETECT | IRQS_SPURIOUS_DISABLED | \
diff -druNp --no-dereference linux-libre-3.18.57-gnu/kernel/time/alarmtimer.c linux-libre-3.18.58-gnu/kernel/time/alarmtimer.c
--- linux-libre-3.18.57-gnu/kernel/time/alarmtimer.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/kernel/time/alarmtimer.c	2017-06-26 01:11:08.000000000 -0400
@@ -614,6 +614,14 @@ static int alarm_timer_set(struct k_itim
 
 	/* start the timer */
 	timr->it.alarm.interval = timespec_to_ktime(new_setting->it_interval);
+
+	/*
+	 * Rate limit to the tick as a hot fix to prevent DOS. Will be
+	 * mopped up later.
+	 */
+	if (ktime_to_ns(timr->it.alarm.interval) < TICK_NSEC)
+		timr->it.alarm.interval = ktime_set(0, TICK_NSEC);
+
 	exp = timespec_to_ktime(new_setting->it_value);
 	/* Convert (if necessary) to absolute time */
 	if (flags != TIMER_ABSTIME) {
diff -druNp --no-dereference linux-libre-3.18.57-gnu/Makefile linux-libre-3.18.58-gnu/Makefile
--- linux-libre-3.18.57-gnu/Makefile	2017-06-14 14:03:57.000000000 -0400
+++ linux-libre-3.18.58-gnu/Makefile	2017-06-26 09:01:07.000000000 -0400
@@ -1,6 +1,6 @@
 VERSION = 3
 PATCHLEVEL = 18
-SUBLEVEL = 57
+SUBLEVEL = 58
 EXTRAVERSION =-gnu
 NAME = Diseased Newt
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/mm/gup.c linux-libre-3.18.58-gnu/mm/gup.c
--- linux-libre-3.18.57-gnu/mm/gup.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/mm/gup.c	2017-06-26 01:11:08.000000000 -0400
@@ -275,11 +275,6 @@ static int faultin_page(struct task_stru
 	unsigned int fault_flags = 0;
 	int ret;
 
-	/* For mlock, just skip the stack guard page. */
-	if ((*flags & FOLL_MLOCK) &&
-			(stack_guard_page_start(vma, address) ||
-			 stack_guard_page_end(vma, address + PAGE_SIZE)))
-		return -ENOENT;
 	if (*flags & FOLL_WRITE)
 		fault_flags |= FAULT_FLAG_WRITE;
 	if (nonblocking)
diff -druNp --no-dereference linux-libre-3.18.57-gnu/mm/memory.c linux-libre-3.18.58-gnu/mm/memory.c
--- linux-libre-3.18.57-gnu/mm/memory.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/mm/memory.c	2017-06-26 01:11:08.000000000 -0400
@@ -2580,40 +2580,6 @@ out_release:
 }
 
 /*
- * This is like a special single-page "expand_{down|up}wards()",
- * except we must first make sure that 'address{-|+}PAGE_SIZE'
- * doesn't hit another vma.
- */
-static inline int check_stack_guard_page(struct vm_area_struct *vma, unsigned long address)
-{
-	address &= PAGE_MASK;
-	if ((vma->vm_flags & VM_GROWSDOWN) && address == vma->vm_start) {
-		struct vm_area_struct *prev = vma->vm_prev;
-
-		/*
-		 * Is there a mapping abutting this one below?
-		 *
-		 * That's only ok if it's the same stack mapping
-		 * that has gotten split..
-		 */
-		if (prev && prev->vm_end == address)
-			return prev->vm_flags & VM_GROWSDOWN ? 0 : -ENOMEM;
-
-		return expand_downwards(vma, address - PAGE_SIZE);
-	}
-	if ((vma->vm_flags & VM_GROWSUP) && address + PAGE_SIZE == vma->vm_end) {
-		struct vm_area_struct *next = vma->vm_next;
-
-		/* As VM_GROWSDOWN but s/below/above/ */
-		if (next && next->vm_start == address + PAGE_SIZE)
-			return next->vm_flags & VM_GROWSUP ? 0 : -ENOMEM;
-
-		return expand_upwards(vma, address + PAGE_SIZE);
-	}
-	return 0;
-}
-
-/*
  * We enter with non-exclusive mmap_sem (to exclude vma changes,
  * but allow concurrent faults), and pte mapped but not yet locked.
  * We return with mmap_sem still held, but pte unmapped and unlocked.
@@ -2633,10 +2599,6 @@ static int do_anonymous_page(struct mm_s
 	if (vma->vm_flags & VM_SHARED)
 		return VM_FAULT_SIGBUS;
 
-	/* Check if we need to add a guard page to the stack */
-	if (check_stack_guard_page(vma, address) < 0)
-		return VM_FAULT_SIGSEGV;
-
 	/* Use the zero-page for reads */
 	if (!(flags & FAULT_FLAG_WRITE)) {
 		entry = pte_mkspecial(pfn_pte(my_zero_pfn(address),
diff -druNp --no-dereference linux-libre-3.18.57-gnu/mm/memory-failure.c linux-libre-3.18.58-gnu/mm/memory-failure.c
--- linux-libre-3.18.57-gnu/mm/memory-failure.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/mm/memory-failure.c	2017-06-26 01:11:08.000000000 -0400
@@ -1189,7 +1189,10 @@ int memory_failure(unsigned long pfn, in
 	 * page_remove_rmap() in try_to_unmap_one(). So to determine page status
 	 * correctly, we save a copy of the page flags at this time.
 	 */
-	page_flags = p->flags;
+	if (PageHuge(p))
+		page_flags = hpage->flags;
+	else
+		page_flags = p->flags;
 
 	/*
 	 * unpoison always clear PG_hwpoison inside page lock
diff -druNp --no-dereference linux-libre-3.18.57-gnu/mm/mmap.c linux-libre-3.18.58-gnu/mm/mmap.c
--- linux-libre-3.18.57-gnu/mm/mmap.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/mm/mmap.c	2017-06-26 01:11:08.000000000 -0400
@@ -290,6 +290,7 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 	unsigned long retval;
 	unsigned long newbrk, oldbrk;
 	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *next;
 	unsigned long min_brk;
 	bool populate;
 
@@ -334,7 +335,8 @@ SYSCALL_DEFINE1(brk, unsigned long, brk)
 	}
 
 	/* Check against existing mmap mappings. */
-	if (find_vma_intersection(mm, oldbrk, newbrk+PAGE_SIZE))
+	next = find_vma(mm, oldbrk);
+	if (next && newbrk + PAGE_SIZE > vm_start_gap(next))
 		goto out;
 
 	/* Ok, looks good - let it rip. */
@@ -357,10 +359,22 @@ out:
 
 static long vma_compute_subtree_gap(struct vm_area_struct *vma)
 {
-	unsigned long max, subtree_gap;
-	max = vma->vm_start;
-	if (vma->vm_prev)
-		max -= vma->vm_prev->vm_end;
+	unsigned long max, prev_end, subtree_gap;
+
+	/*
+	 * Note: in the rare case of a VM_GROWSDOWN above a VM_GROWSUP, we
+	 * allow two stack_guard_gaps between them here, and when choosing
+	 * an unmapped area; whereas when expanding we only require one.
+	 * That's a little inconsistent, but keeps the code here simpler.
+	 */
+	max = vm_start_gap(vma);
+	if (vma->vm_prev) {
+		prev_end = vm_end_gap(vma->vm_prev);
+		if (max > prev_end)
+			max -= prev_end;
+		else
+			max = 0;
+	}
 	if (vma->vm_rb.rb_left) {
 		subtree_gap = rb_entry(vma->vm_rb.rb_left,
 				struct vm_area_struct, vm_rb)->rb_subtree_gap;
@@ -453,7 +467,7 @@ static void validate_mm(struct mm_struct
 			anon_vma_unlock_read(anon_vma);
 		}
 
-		highest_address = vma->vm_end;
+		highest_address = vm_end_gap(vma);
 		vma = vma->vm_next;
 		i++;
 	}
@@ -622,7 +636,7 @@ void __vma_link_rb(struct mm_struct *mm,
 	if (vma->vm_next)
 		vma_gap_update(vma->vm_next);
 	else
-		mm->highest_vm_end = vma->vm_end;
+		mm->highest_vm_end = vm_end_gap(vma);
 
 	/*
 	 * vma->vm_prev wasn't known when we followed the rbtree to find the
@@ -874,7 +888,7 @@ again:			remove_next = 1 + (end > next->
 			vma_gap_update(vma);
 		if (end_changed) {
 			if (!next)
-				mm->highest_vm_end = end;
+				mm->highest_vm_end = vm_end_gap(vma);
 			else if (!adjust_next)
 				vma_gap_update(next);
 		}
@@ -917,7 +931,7 @@ again:			remove_next = 1 + (end > next->
 		else if (next)
 			vma_gap_update(next);
 		else
-			mm->highest_vm_end = end;
+			VM_WARN_ON(mm->highest_vm_end != vm_end_gap(vma));
 	}
 	if (insert && file)
 		uprobe_mmap(insert);
@@ -1740,7 +1754,7 @@ unsigned long unmapped_area(struct vm_un
 
 	while (true) {
 		/* Visit left subtree if it looks promising */
-		gap_end = vma->vm_start;
+		gap_end = vm_start_gap(vma);
 		if (gap_end >= low_limit && vma->vm_rb.rb_left) {
 			struct vm_area_struct *left =
 				rb_entry(vma->vm_rb.rb_left,
@@ -1751,12 +1765,13 @@ unsigned long unmapped_area(struct vm_un
 			}
 		}
 
-		gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
+		gap_start = vma->vm_prev ? vm_end_gap(vma->vm_prev) : 0;
 check_current:
 		/* Check if current node has a suitable gap */
 		if (gap_start > high_limit)
 			return -ENOMEM;
-		if (gap_end >= low_limit && gap_end - gap_start >= length)
+		if (gap_end >= low_limit &&
+		    gap_end > gap_start && gap_end - gap_start >= length)
 			goto found;
 
 		/* Visit right subtree if it looks promising */
@@ -1778,8 +1793,8 @@ check_current:
 			vma = rb_entry(rb_parent(prev),
 				       struct vm_area_struct, vm_rb);
 			if (prev == vma->vm_rb.rb_left) {
-				gap_start = vma->vm_prev->vm_end;
-				gap_end = vma->vm_start;
+				gap_start = vm_end_gap(vma->vm_prev);
+				gap_end = vm_start_gap(vma);
 				goto check_current;
 			}
 		}
@@ -1843,7 +1858,7 @@ unsigned long unmapped_area_topdown(stru
 
 	while (true) {
 		/* Visit right subtree if it looks promising */
-		gap_start = vma->vm_prev ? vma->vm_prev->vm_end : 0;
+		gap_start = vma->vm_prev ? vm_end_gap(vma->vm_prev) : 0;
 		if (gap_start <= high_limit && vma->vm_rb.rb_right) {
 			struct vm_area_struct *right =
 				rb_entry(vma->vm_rb.rb_right,
@@ -1856,10 +1871,11 @@ unsigned long unmapped_area_topdown(stru
 
 check_current:
 		/* Check if current node has a suitable gap */
-		gap_end = vma->vm_start;
+		gap_end = vm_start_gap(vma);
 		if (gap_end < low_limit)
 			return -ENOMEM;
-		if (gap_start <= high_limit && gap_end - gap_start >= length)
+		if (gap_start <= high_limit &&
+		    gap_end > gap_start && gap_end - gap_start >= length)
 			goto found;
 
 		/* Visit left subtree if it looks promising */
@@ -1882,7 +1898,7 @@ check_current:
 				       struct vm_area_struct, vm_rb);
 			if (prev == vma->vm_rb.rb_right) {
 				gap_start = vma->vm_prev ?
-					vma->vm_prev->vm_end : 0;
+					vm_end_gap(vma->vm_prev) : 0;
 				goto check_current;
 			}
 		}
@@ -1920,7 +1936,7 @@ arch_get_unmapped_area(struct file *filp
 		unsigned long len, unsigned long pgoff, unsigned long flags)
 {
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	struct vm_unmapped_area_info info;
 
 	if (len > TASK_SIZE - mmap_min_addr)
@@ -1931,9 +1947,10 @@ arch_get_unmapped_area(struct file *filp
 
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
+		vma = find_vma_prev(mm, addr, &prev);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-		    (!vma || addr + len <= vma->vm_start))
+		    (!vma || addr + len <= vm_start_gap(vma)) &&
+		    (!prev || addr >= vm_end_gap(prev)))
 			return addr;
 	}
 
@@ -1956,7 +1973,7 @@ arch_get_unmapped_area_topdown(struct fi
 			  const unsigned long len, const unsigned long pgoff,
 			  const unsigned long flags)
 {
-	struct vm_area_struct *vma;
+	struct vm_area_struct *vma, *prev;
 	struct mm_struct *mm = current->mm;
 	unsigned long addr = addr0;
 	struct vm_unmapped_area_info info;
@@ -1971,9 +1988,10 @@ arch_get_unmapped_area_topdown(struct fi
 	/* requesting a specific address */
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
-		vma = find_vma(mm, addr);
+		vma = find_vma_prev(mm, addr, &prev);
 		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
-				(!vma || addr + len <= vma->vm_start))
+				(!vma || addr + len <= vm_start_gap(vma)) &&
+				(!prev || addr >= vm_end_gap(prev)))
 			return addr;
 	}
 
@@ -2099,21 +2117,19 @@ find_vma_prev(struct mm_struct *mm, unsi
  * update accounting. This is shared with both the
  * grow-up and grow-down cases.
  */
-static int acct_stack_growth(struct vm_area_struct *vma, unsigned long size, unsigned long grow)
+static int acct_stack_growth(struct vm_area_struct *vma,
+			     unsigned long size, unsigned long grow)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	struct rlimit *rlim = current->signal->rlim;
-	unsigned long new_start, actual_size;
+	unsigned long new_start;
 
 	/* address space limit tests */
 	if (!may_expand_vm(mm, grow))
 		return -ENOMEM;
 
 	/* Stack limit test */
-	actual_size = size;
-	if (size && (vma->vm_flags & (VM_GROWSUP | VM_GROWSDOWN)))
-		actual_size -= PAGE_SIZE;
-	if (actual_size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
+	if (size > ACCESS_ONCE(rlim[RLIMIT_STACK].rlim_cur))
 		return -ENOMEM;
 
 	/* mlock limit tests */
@@ -2154,16 +2170,32 @@ static int acct_stack_growth(struct vm_a
  */
 int expand_upwards(struct vm_area_struct *vma, unsigned long address)
 {
+	struct vm_area_struct *next;
+	unsigned long gap_addr;
 	int error = 0;
 
 	if (!(vma->vm_flags & VM_GROWSUP))
 		return -EFAULT;
 
-	/* Guard against wrapping around to address 0. */
-	if (address < PAGE_ALIGN(address+4))
-		address = PAGE_ALIGN(address+4);
-	else
+	/* Guard against exceeding limits of the address space. */
+	address &= PAGE_MASK;
+	if (address >= TASK_SIZE)
 		return -ENOMEM;
+	address += PAGE_SIZE;
+
+	/* Enforce stack_guard_gap */
+	gap_addr = address + stack_guard_gap;
+
+	/* Guard against overflow */
+	if (gap_addr < address || gap_addr > TASK_SIZE)
+		gap_addr = TASK_SIZE;
+
+	next = vma->vm_next;
+	if (next && next->vm_start < gap_addr) {
+		if (!(next->vm_flags & VM_GROWSUP))
+			return -ENOMEM;
+		/* Check that both stack segments have the same anon_vma? */
+	}
 
 	/* We must make sure the anon_vma is allocated. */
 	if (unlikely(anon_vma_prepare(vma)))
@@ -2205,7 +2237,7 @@ int expand_upwards(struct vm_area_struct
 				if (vma->vm_next)
 					vma_gap_update(vma->vm_next);
 				else
-					vma->vm_mm->highest_vm_end = address;
+					vma->vm_mm->highest_vm_end = vm_end_gap(vma);
 				spin_unlock(&vma->vm_mm->page_table_lock);
 
 				perf_event_mmap(vma);
@@ -2225,6 +2257,8 @@ int expand_upwards(struct vm_area_struct
 int expand_downwards(struct vm_area_struct *vma,
 				   unsigned long address)
 {
+	struct vm_area_struct *prev;
+	unsigned long gap_addr;
 	int error;
 
 	address &= PAGE_MASK;
@@ -2232,6 +2266,17 @@ int expand_downwards(struct vm_area_stru
 	if (error)
 		return error;
 
+	/* Enforce stack_guard_gap */
+	gap_addr = address - stack_guard_gap;
+	if (gap_addr > address)
+		return -ENOMEM;
+	prev = vma->vm_prev;
+	if (prev && prev->vm_end > gap_addr) {
+		if (!(prev->vm_flags & VM_GROWSDOWN))
+			return -ENOMEM;
+		/* Check that both stack segments have the same anon_vma? */
+	}
+
 	/* We must make sure the anon_vma is allocated. */
 	if (unlikely(anon_vma_prepare(vma)))
 		return -ENOMEM;
@@ -2283,28 +2328,25 @@ int expand_downwards(struct vm_area_stru
 	return error;
 }
 
-/*
- * Note how expand_stack() refuses to expand the stack all the way to
- * abut the next virtual mapping, *unless* that mapping itself is also
- * a stack mapping. We want to leave room for a guard page, after all
- * (the guard page itself is not added here, that is done by the
- * actual page faulting logic)
- *
- * This matches the behavior of the guard page logic (see mm/memory.c:
- * check_stack_guard_page()), which only allows the guard page to be
- * removed under these circumstances.
- */
+/* enforced gap between the expanding stack and other mappings. */
+unsigned long stack_guard_gap = 256UL<<PAGE_SHIFT;
+
+static int __init cmdline_parse_stack_guard_gap(char *p)
+{
+	unsigned long val;
+	char *endptr;
+
+	val = simple_strtoul(p, &endptr, 10);
+	if (!*endptr)
+		stack_guard_gap = val << PAGE_SHIFT;
+
+	return 0;
+}
+__setup("stack_guard_gap=", cmdline_parse_stack_guard_gap);
+
 #ifdef CONFIG_STACK_GROWSUP
 int expand_stack(struct vm_area_struct *vma, unsigned long address)
 {
-	struct vm_area_struct *next;
-
-	address &= PAGE_MASK;
-	next = vma->vm_next;
-	if (next && next->vm_start == address + PAGE_SIZE) {
-		if (!(next->vm_flags & VM_GROWSUP))
-			return -ENOMEM;
-	}
 	return expand_upwards(vma, address);
 }
 
@@ -2326,14 +2368,6 @@ find_extend_vma(struct mm_struct *mm, un
 #else
 int expand_stack(struct vm_area_struct *vma, unsigned long address)
 {
-	struct vm_area_struct *prev;
-
-	address &= PAGE_MASK;
-	prev = vma->vm_prev;
-	if (prev && prev->vm_end == address) {
-		if (!(prev->vm_flags & VM_GROWSDOWN))
-			return -ENOMEM;
-	}
 	return expand_downwards(vma, address);
 }
 
@@ -2429,7 +2463,7 @@ detach_vmas_to_be_unmapped(struct mm_str
 		vma->vm_prev = prev;
 		vma_gap_update(vma);
 	} else
-		mm->highest_vm_end = prev ? prev->vm_end : 0;
+		mm->highest_vm_end = prev ? vm_end_gap(prev) : 0;
 	tail_vma->vm_next = NULL;
 
 	/* Kill the cache */
diff -druNp --no-dereference linux-libre-3.18.57-gnu/mm/page_cgroup.c linux-libre-3.18.58-gnu/mm/page_cgroup.c
--- linux-libre-3.18.57-gnu/mm/page_cgroup.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/mm/page_cgroup.c	2017-06-26 01:11:08.000000000 -0400
@@ -368,6 +368,9 @@ static int swap_cgroup_prepare(int type)
 		if (!page)
 			goto not_enough_page;
 		ctrl->map[idx] = page;
+
+		if (!(idx % SWAP_CLUSTER_MAX))
+			cond_resched();
 	}
 	return 0;
 not_enough_page:
diff -druNp --no-dereference linux-libre-3.18.57-gnu/net/ipv6/datagram.c linux-libre-3.18.58-gnu/net/ipv6/datagram.c
--- linux-libre-3.18.57-gnu/net/ipv6/datagram.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/net/ipv6/datagram.c	2017-06-26 01:11:08.000000000 -0400
@@ -76,18 +76,22 @@ static int __ip6_datagram_connect(struct
 		}
 	}
 
-	addr_type = ipv6_addr_type(&usin->sin6_addr);
-
-	if (addr_type == IPV6_ADDR_ANY) {
+	if (ipv6_addr_any(&usin->sin6_addr)) {
 		/*
 		 *	connect to self
 		 */
-		usin->sin6_addr.s6_addr[15] = 0x01;
+		if (ipv6_addr_v4mapped(&sk->sk_v6_rcv_saddr))
+			ipv6_addr_set_v4mapped(htonl(INADDR_LOOPBACK),
+					       &usin->sin6_addr);
+		else
+			usin->sin6_addr = in6addr_loopback;
 	}
 
+	addr_type = ipv6_addr_type(&usin->sin6_addr);
+
 	daddr = &usin->sin6_addr;
 
-	if (addr_type == IPV6_ADDR_MAPPED) {
+	if (addr_type & IPV6_ADDR_MAPPED) {
 		struct sockaddr_in sin;
 
 		if (__ipv6_only_sock(sk)) {
diff -druNp --no-dereference linux-libre-3.18.57-gnu/net/ipv6/ip6_output.c linux-libre-3.18.58-gnu/net/ipv6/ip6_output.c
--- linux-libre-3.18.57-gnu/net/ipv6/ip6_output.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/net/ipv6/ip6_output.c	2017-06-26 01:11:08.000000000 -0400
@@ -960,6 +960,9 @@ static int ip6_dst_lookup_tail(struct so
 		}
 	}
 #endif
+	if (ipv6_addr_v4mapped(&fl6->saddr) &&
+	    !(ipv6_addr_v4mapped(&fl6->daddr) || ipv6_addr_any(&fl6->daddr)))
+		return -EAFNOSUPPORT;
 
 	return 0;
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/net/ipv6/tcp_ipv6.c linux-libre-3.18.58-gnu/net/ipv6/tcp_ipv6.c
--- linux-libre-3.18.57-gnu/net/ipv6/tcp_ipv6.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/net/ipv6/tcp_ipv6.c	2017-06-26 01:11:08.000000000 -0400
@@ -164,8 +164,13 @@ static int tcp_v6_connect(struct sock *s
 	 *	connect() to INADDR_ANY means loopback (BSD'ism).
 	 */
 
-	if (ipv6_addr_any(&usin->sin6_addr))
-		usin->sin6_addr.s6_addr[15] = 0x1;
+	if (ipv6_addr_any(&usin->sin6_addr)) {
+		if (ipv6_addr_v4mapped(&sk->sk_v6_rcv_saddr))
+			ipv6_addr_set_v4mapped(htonl(INADDR_LOOPBACK),
+					       &usin->sin6_addr);
+		else
+			usin->sin6_addr = in6addr_loopback;
+	}
 
 	addr_type = ipv6_addr_type(&usin->sin6_addr);
 
@@ -204,7 +209,7 @@ static int tcp_v6_connect(struct sock *s
 	 *	TCP over IPv4
 	 */
 
-	if (addr_type == IPV6_ADDR_MAPPED) {
+	if (addr_type & IPV6_ADDR_MAPPED) {
 		u32 exthdrlen = icsk->icsk_ext_hdr_len;
 		struct sockaddr_in sin;
 
diff -druNp --no-dereference linux-libre-3.18.57-gnu/net/ipv6/udp.c linux-libre-3.18.58-gnu/net/ipv6/udp.c
--- linux-libre-3.18.57-gnu/net/ipv6/udp.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/net/ipv6/udp.c	2017-06-26 01:11:08.000000000 -0400
@@ -1107,6 +1107,10 @@ int udpv6_sendmsg(struct kiocb *iocb, st
 			if (addr_len < SIN6_LEN_RFC2133)
 				return -EINVAL;
 			daddr = &sin6->sin6_addr;
+			if (ipv6_addr_any(daddr) &&
+			    ipv6_addr_v4mapped(&np->saddr))
+				ipv6_addr_set_v4mapped(htonl(INADDR_LOOPBACK),
+						       daddr);
 			break;
 		case AF_INET:
 			goto do_udp_sendmsg;
diff -druNp --no-dereference linux-libre-3.18.57-gnu/net/mac80211/rx.c linux-libre-3.18.58-gnu/net/mac80211/rx.c
--- linux-libre-3.18.57-gnu/net/mac80211/rx.c	2017-06-14 06:54:45.000000000 -0400
+++ linux-libre-3.18.58-gnu/net/mac80211/rx.c	2017-06-26 01:11:08.000000000 -0400
@@ -1319,12 +1319,16 @@ ieee80211_rx_h_sta_process(struct ieee80
 	 */
 	if (!(sta->local->hw.flags & IEEE80211_HW_AP_LINK_PS) &&
 	    !ieee80211_has_morefrags(hdr->frame_control) &&
+	    !ieee80211_is_back_req(hdr->frame_control) &&
 	    !(status->rx_flags & IEEE80211_RX_DEFERRED_RELEASE) &&
 	    (rx->sdata->vif.type == NL80211_IFTYPE_AP ||
 	     rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
-	    /* PM bit is only checked in frames where it isn't reserved,
+	    /*
+	     * PM bit is only checked in frames where it isn't reserved,
 	     * in AP mode it's reserved in non-bufferable management frames
 	     * (cf. IEEE 802.11-2012 8.2.4.1.7 Power Management field)
+	     * BAR frames should be ignored as specified in
+	     * IEEE 802.11-2012 10.2.1.2.
 	     */
 	    (!ieee80211_is_mgmt(hdr->frame_control) ||
 	     ieee80211_is_bufferable_mmpdu(hdr->frame_control))) {
