Re: Linux 5.17.8

Greg Kroah-Hartman
2022-05-15T18:48:52Z

diff --git a/Makefile b/Makefile
index ce65b393a2b4..3cf179812f0f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 5
PATCHLEVEL = 17
-SUBLEVEL = 7
+SUBLEVEL = 8
EXTRAVERSION =
NAME = Superb Owl

diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 0ed4861b038f..b3d5f97f16cd 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -75,11 +75,11 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,

if (fileident) {
if (adinicb || (offset + lfi < 0)) {
- memcpy(udf_get_fi_ident(sfi), fileident, lfi);
+ memcpy(sfi->impUse + liu, fileident, lfi);
} else if (offset >= 0) {
memcpy(fibh->ebh->b_data + offset, fileident, lfi);
} else {
- memcpy(udf_get_fi_ident(sfi), fileident, -offset);
+ memcpy(sfi->impUse + liu, fileident, -offset);
memcpy(fibh->ebh->b_data, fileident - offset,
lfi + offset);
}
@@ -88,11 +88,11 @@ int udf_write_fi(struct inode *inode, struct fileIdentDesc *cfi,
offset += lfi;

if (adinicb || (offset + padlen < 0)) {
- memset(udf_get_fi_ident(sfi) + lfi, 0x00, padlen);
+ memset(sfi->impUse + liu + lfi, 0x00, padlen);
} else if (offset >= 0) {
memset(fibh->ebh->b_data + offset, 0x00, padlen);
} else {
- memset(udf_get_fi_ident(sfi) + lfi, 0x00, -offset);
+ memset(sfi->impUse + liu + lfi, 0x00, -offset);
memset(fibh->ebh->b_data, 0x00, padlen + offset);
}

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 36d727f94ac2..131514913430 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -36,6 +36,9 @@
/* HCI priority */
#define HCI_PRIO_MAX 7

+/* HCI maximum id value */
+#define HCI_MAX_ID 10000
+
/* HCI Core structures */
struct inquiry_data {
bdaddr_t bdaddr;
diff --git a/include/uapi/linux/rfkill.h b/include/uapi/linux/rfkill.h
index 283c5a7b3f2c..db6c8588c1d0 100644
--- a/include/uapi/linux/rfkill.h
+++ b/include/uapi/linux/rfkill.h
@@ -184,7 +184,7 @@ struct rfkill_event_ext {
#define RFKILL_IOC_NOINPUT 1
#define RFKILL_IOCTL_NOINPUT _IO(RFKILL_IOC_MAGIC, RFKILL_IOC_NOINPUT)
#define RFKILL_IOC_MAX_SIZE 2
-#define RFKILL_IOCTL_MAX_SIZE _IOW(RFKILL_IOC_MAGIC, RFKILL_IOC_EXT_SIZE, __u32)
+#define RFKILL_IOCTL_MAX_SIZE _IOW(RFKILL_IOC_MAGIC, RFKILL_IOC_MAX_SIZE, __u32)

/* and that's all userspace gets */

diff --git a/mm/gup.c b/mm/gup.c
index 7bc1ba9ce440..41da0bd61bec 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -465,7 +465,7 @@ static int follow_pfn_pte(struct vm_area_struct *vma, unsigned long address,
pte_t *pte, unsigned int flags)
{
/* No page to get reference */
- if (flags & FOLL_GET)
+ if (flags & (FOLL_GET | FOLL_PIN))
return -EFAULT;

if (flags & FOLL_TOUCH) {
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index a1da8757cc9c..e2dc190c6725 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5820,7 +5820,8 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
*pagep = NULL;
goto out;
}
- folio_copy(page_folio(page), page_folio(*pagep));
+ copy_user_huge_page(page, *pagep, dst_addr, dst_vma,
+ pages_per_huge_page(h));
put_page(*pagep);
*pagep = NULL;
}
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 15dcedbc1730..682eedb5ea75 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -707,8 +707,10 @@ static int kill_accessing_process(struct task_struct *p, unsigned long pfn,
(void *)&priv);
if (ret == 1 && priv.tk.addr)
kill_proc(&priv.tk, pfn, flags);
+ else
+ ret = 0;
mmap_read_unlock(p->mm);
- return ret ? -EFAULT : -EHWPOISON;
+ return ret > 0 ? -EHWPOISON : -EFAULT;
}

static const char *action_name[] = {
diff --git a/mm/memory.c b/mm/memory.c
index b69afe3dd597..886925d97759 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -5475,6 +5475,8 @@ long copy_huge_page_from_user(struct page *dst_page,
if (rc)
break;

+ flush_dcache_page(subpage);
+
cond_resched();
}
return ret_val;
diff --git a/mm/migrate.c b/mm/migrate.c
index 086a36637467..ac7673e43dda 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -916,9 +916,12 @@ static int move_to_new_page(struct page *newpage, struct page *page,
if (!PageMappingFlags(page))
page->mapping = NULL;

- if (likely(!is_zone_device_page(newpage)))
- flush_dcache_page(newpage);
+ if (likely(!is_zone_device_page(newpage))) {
+ int i, nr = compound_nr(newpage);

+ for (i = 0; i < nr; i++)
+ flush_dcache_page(newpage + i);
+ }
}
out:
return rc;
@@ -3082,18 +3085,21 @@ static int establish_migrate_target(int node, nodemask_t *used,
if (best_distance != -1) {
val = node_distance(node, migration_target);
if (val > best_distance)
- return NUMA_NO_NODE;
+ goto out_clear;
}

index = nd->nr;
if (WARN_ONCE(index >= DEMOTION_TARGET_NODES,
"Exceeds maximum demotion target nodes\n"))
- return NUMA_NO_NODE;
+ goto out_clear;

nd->nodes[index] = migration_target;
nd->nr++;

return migration_target;
+out_clear:
+ node_clear(migration_target, *used);
+ return NUMA_NO_NODE;
}

/*
diff --git a/mm/mlock.c b/mm/mlock.c
index 37f969ec68fa..b565b1aac8d4 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -838,6 +838,7 @@ int user_shm_lock(size_t size, struct ucounts *ucounts)
}
if (!get_ucounts(ucounts)) {
dec_rlimit_ucounts(ucounts, UCOUNT_RLIMIT_MEMLOCK, locked);
+ allowed = 0;
goto out;
}
allowed = 1;
diff --git a/mm/shmem.c b/mm/shmem.c
index a09b29ec2b45..7a46419d331d 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2357,8 +2357,10 @@ int shmem_mfill_atomic_pte(struct mm_struct *dst_mm,
/* don't free the page */
goto out_unacct_blocks;
}
+
+ flush_dcache_page(page);
} else { /* ZEROPAGE */
- clear_highpage(page);
+ clear_user_highpage(page, dst_addr);
}
} else {
page = *pagep;
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 885e5adb0168..7259f96faaa0 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -153,6 +153,8 @@ static int mcopy_atomic_pte(struct mm_struct *dst_mm,
/* don't free the page */
goto out;
}
+
+ flush_dcache_page(page);
} else {
page = *pagep;
*pagep = NULL;
@@ -628,6 +630,7 @@ static __always_inline ssize_t __mcopy_atomic(struct mm_struct *dst_mm,
err = -EFAULT;
goto out;
}
+ flush_dcache_page(page);
goto retry;
} else
BUG_ON(page);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 2882bc7d79d7..9e9713f7ddb8 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2554,10 +2554,10 @@ int hci_register_dev(struct hci_dev *hdev)
*/
switch (hdev->dev_type) {
case HCI_PRIMARY:
- id = ida_simple_get(&hci_index_ida, 0, 0, GFP_KERNEL);
+ id = ida_simple_get(&hci_index_ida, 0, HCI_MAX_ID, GFP_KERNEL);
break;
case HCI_AMP:
- id = ida_simple_get(&hci_index_ida, 1, 0, GFP_KERNEL);
+ id = ida_simple_get(&hci_index_ida, 1, HCI_MAX_ID, GFP_KERNEL);
break;
default:
return -EINVAL;
@@ -2566,7 +2566,7 @@ int hci_register_dev(struct hci_dev *hdev)
if (id < 0)
return id;

- sprintf(hdev->name, "hci%d", id);
+ snprintf(hdev->name, sizeof(hdev->name), "hci%d", id);
hdev->id = id;

BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);