The patch titled
Subject: mm-memory_hotplug-prevalidate-the-address-range-being-added-with-platform-fix
has been added to the -mm tree. Its filename is
mm-memory_hotplug-prevalidate-the-address-range-being-added-with-platform-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-memory_hotplug-prevalidate-the-address-range-being-added-with-platform-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-memory_hotplug-prevalidate-the-address-range-being-added-with-platform-fix.patch
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------------------------------------------------------
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Subject: mm-memory_hotplug-prevalidate-the-address-range-being-added-with-platform-fix
make pagemap_range() return -EINVAL when mhp_range_allowed() fails
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Cc: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Cc: Ard Biesheuvel <ardb@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
Cc: Jason Wang <jasowang@xxxxxxxxxx>
Cc: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: "Michael S. Tsirkin" <mst@xxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: Pankaj Gupta <pankaj.gupta@xxxxxxxxxxxxxxx>
Cc: Pankaj Gupta <pankaj.gupta.linux@xxxxxxxxx>
Cc: teawater <teawaterz@xxxxxxxxxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Cc: Wei Yang <richard.weiyang@xxxxxxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memremap.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/mm/memremap.c~mm-memory_hotplug-prevalidate-the-address-range-being-added-with-platform-fix
+++ a/mm/memremap.c
@@ -266,8 +266,10 @@ static int pagemap_range(struct dev_page
if (error)
goto err_pfn_remap;
- if (!mhp_range_allowed(range->start, range_len(range), !is_private))
+ if (!mhp_range_allowed(range->start, range_len(range), !is_private)) {
+ error = -EINVAL;
goto err_pfn_remap;
+ }
mem_hotplug_begin();
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
mm.patch
mm-memcg-slab-pre-allocate-obj_cgroups-for-slab-caches-with-slab_account-fix.patch
mm-memcontrol-optimize-per-lruvec-stats-counter-memory-usage-checkpatch-fixes.patch
mm-memcg-add-swapcache-stat-for-memcg-v2-fix.patch
kasan-add-match-all-tag-tests-fix-fix.patch
mm-cma-allocate-cma-areas-bottom-up-fix-3-fix.patch
mm-vmstat-fix-proc-sys-vm-stat_refresh-generating-false-warnings-fix-2.patch
mm-memory_hotplug-prevalidate-the-address-range-being-added-with-platform-fix.patch
bdi-use-might_alloc-fix.patch
kfence-kasan-make-kfence-compatible-with-kasan-fix.patch
lib-stackdepot-add-support-to-disable-stack-depot-fix.patch
seq_file-document-how-per-entry-resources-are-managed-fix.patch
initramfs-panic-with-memory-information-fix.patch
linux-next-rejects.patch
fs-ramfs-inodec-update-inode_operationstmpfile.patch
kernel-forkc-export-kernel_thread-to-modules.patch
