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linux/mm
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Sudip Mukherjee 8285027fc4 mm/page_owner: avoid null pointer dereference 
We have dereferenced page_ext before checking it.  Lets check it first
and then used it.

Fixes: f86e4271978b ("mm: check the return value of lookup_page_ext for all call sites")
Link: http://lkml.kernel.org/r/1465249059-7883-1-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-06-24 17:23:52 -07:00
..
kasan
mm: mempool: kasan: don't poot mempool objects in quarantine
2016-06-24 17:23:52 -07:00
backing-dev.c
mm: throttle on IO only when there are too many dirty and writeback pages
2016-05-20 17:58:30 -07:00
balloon_compaction.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2016-03-17 21:38:27 -07:00
bootmem.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
cleancache.c
cleancache: constify cleancache_ops structure
2016-01-27 09:09:57 -05:00
cma_debug.c
mm/cma_debug: correct size input to bitmap function
2015-07-17 16:39:54 -07:00
cma.c
mm/cma: silence warnings due to max() usage
2016-05-27 14:49:37 -07:00
cma.h
mm: cma: mark cma_bitmap_maxno() inline in header
2015-08-14 15:56:32 -07:00
compaction.c
mm, compaction: abort free scanner if split fails
2016-06-24 17:23:52 -07:00
debug_page_ref.c
mm/page_ref: add tracepoint to track down page reference manipulation
2016-03-17 15:09:34 -07:00
debug.c
mm: introduce page reference manipulation functions
2016-03-17 15:09:34 -07:00
dmapool.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
early_ioremap.c
mm/early_ioremap: use offset_in_page macro
2015-11-05 19:34:48 -08:00
fadvise.c
mm/fadvise.c: do not discard partial pages with POSIX_FADV_DONTNEED
2016-06-09 14:23:11 -07:00
failslab.c
mm: fault-inject take over bootstrap kmem_cache check
2016-03-15 16:55:16 -07:00
filemap.c
Revert "mm: make faultaround produce old ptes"
2016-06-24 17:23:52 -07:00
frame_vector.c
mm/gup: Switch all callers of get_user_pages() to not pass tsk/mm
2016-02-16 10:11:12 +01:00
frontswap.c
frontswap: allow multiple backends
2015-06-24 17:49:45 -07:00
gup.c
Merge branch 'mm-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-04-14 19:31:34 -07:00
highmem.c
mm/highmem: make nr_free_highpages() handles all highmem zones by itself
2016-05-19 19:12:14 -07:00
huge_memory.c
libnvdimm for 4.7
2016-05-23 11:18:01 -07:00
hugetlb_cgroup.c
mm, hugetlb_cgroup: round limit_in_bytes down to hugepage size
2016-05-20 17:58:30 -07:00
hugetlb.c
mm/hugetlb: clear compound_mapcount when freeing gigantic pages
2016-06-24 17:23:52 -07:00
hwpoison-inject.c
hwpoison: use page_cgroup_ino for filtering by memcg
2015-09-10 13:29:01 -07:00
init-mm.c
atomic: use <linux/atomic.h>
2011-07-26 16:49:47 -07:00
internal.h
mm, sl[au]b: add __GFP_ATOMIC to the GFP reclaim mask
2016-06-24 17:23:52 -07:00
interval_tree.c
mm: replace vma->sharead.linear with vma->shared
2015-02-10 14:30:31 -08:00
Kconfig
mm: disable DEFERRED_STRUCT_PAGE_INIT on !NO_BOOTMEM
2016-05-27 14:49:37 -07:00
Kconfig.debug
mm/page_ref: add tracepoint to track down page reference manipulation
2016-03-17 15:09:34 -07:00
kmemcheck.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak-test.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak.c
mm: prevent KASAN false positives in kmemleak
2016-06-24 17:23:52 -07:00
ksm.c
ksm: fix conflict between mmput and scan_get_next_rmap_item
2016-05-12 15:52:50 -07:00
list_lru.c
mm: memcontrol: move kmem accounting code to CONFIG_MEMCG
2016-01-20 17:09:18 -08:00
maccess.c
x86: remove more uaccess_32.h complexity
2016-05-22 17:21:27 -07:00
madvise.c
mm: make mmap_sem for write waits killable for mm syscalls
2016-05-23 17:04:14 -07:00
Makefile
z3fold: the 3-fold allocator for compressed pages
2016-05-20 17:58:30 -07:00
memblock.c
mm/memblock.c: remove unnecessary always-true comparison
2016-05-20 17:58:30 -07:00
memcontrol.c
memcg: css_alloc should return an ERR_PTR value on error
2016-06-24 17:23:52 -07:00
memory_hotplug.c
mm: fix section mismatch warning
2016-05-27 15:23:32 -07:00
memory-failure.c
mm/memory-failure.c: replace "MCE" with "Memory failure"
2016-05-20 17:58:30 -07:00
memory.c
Revert "mm: disable fault around on emulated access bit architecture"
2016-06-24 17:23:52 -07:00
mempolicy.c
mm, page_alloc: avoid looking up the first zone in a zonelist twice
2016-05-19 19:12:14 -07:00
mempool.c
mm: mempool: kasan: don't poot mempool objects in quarantine
2016-06-24 17:23:52 -07:00
memtest.c
memtest: remove unused header files
2015-09-08 15:35:28 -07:00
migrate.c
mm: Export migrate_page_move_mapping and migrate_page_copy
2016-06-23 00:29:45 +02:00
mincore.c
mm, fs: remove remaining PAGE_CACHE_* and page_cache_{get,release} usage
2016-04-04 10:41:08 -07:00
mlock.c
mm: make mmap_sem for write waits killable for mm syscalls
2016-05-23 17:04:14 -07:00
mm_init.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
mmap.c
mm: remove more IS_ERR_VALUE abuses
2016-05-27 15:57:31 -07:00
mmu_context.c
mm/mmu_context, sched/core: Fix mmu_context.h assumption
2016-04-28 11:44:19 +02:00
mmu_notifier.c
fix Christoph's email addresses
2016-03-17 15:09:34 -07:00
mmzone.c
mm, page_alloc: inline the fast path of the zonelist iterator
2016-05-19 19:12:14 -07:00
mprotect.c
mm: make mmap_sem for write waits killable for mm syscalls
2016-05-23 17:04:14 -07:00
mremap.c
mm: make mmap_sem for write waits killable for mm syscalls
2016-05-23 17:04:14 -07:00
msync.c
mm/msync: use offset_in_page macro
2015-11-05 19:34:48 -08:00
nobootmem.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
nommu.c
mm: remove more IS_ERR_VALUE abuses
2016-05-27 15:57:31 -07:00
oom_kill.c
oom_reaper: avoid pointless atomic_inc_not_zero usage.
2016-06-24 17:23:52 -07:00
page_alloc.c
mm, page_alloc: recalculate the preferred zoneref if the context can ignore memory policies
2016-06-03 16:02:57 -07:00
page_counter.c
mm: page_counter: let page_counter_try_charge() return bool
2015-11-05 19:34:48 -08:00
page_ext.c
mm: use early_pfn_to_nid in page_ext_init
2016-05-27 14:49:37 -07:00
page_idle.c
mm: add page_check_address_transhuge() helper
2016-01-15 17:56:32 -08:00
page_io.c
Merge branch 'work.preadv2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-05-17 15:05:23 -07:00
page_isolation.c
mm/memory_hotplug: add comment to some functions related to memory hotplug
2016-05-19 19:12:14 -07:00
page_owner.c
mm/page_owner: avoid null pointer dereference
2016-06-24 17:23:52 -07:00
page_poison.c
mm: check the return value of lookup_page_ext for all call sites
2016-06-03 15:06:22 -07:00
page-writeback.c
writeback: use higher precision calculation in domain_dirty_limits()
2016-05-30 08:54:40 -06:00
pagewalk.c
thp: rename split_huge_page_pmd() to split_huge_pmd()
2016-01-15 17:56:32 -08:00
percpu-km.c
mm: percpu: use pr_fmt to prefix output
2016-03-17 15:09:34 -07:00
percpu-vm.c
percpu: move region iterations out of pcpu_[de]populate_chunk()
2014-09-02 14:46:02 -04:00
percpu.c
percpu: fix synchronization between synchronous map extension and chunk destruction
2016-05-25 11:48:25 -04:00
pgtable-generic.c
mm/thp/migration: switch from flush_tlb_range to flush_pmd_tlb_range
2016-03-17 15:09:34 -07:00
process_vm_access.c
mm/gup: Introduce get_user_pages_remote()
2016-02-16 10:04:09 +01:00
quicklist.c
fix Christoph's email addresses
2016-03-17 15:09:34 -07:00
readahead.c
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
rmap.c
mm: thp: avoid false positive VM_BUG_ON_PAGE in page_move_anon_rmap()
2016-05-27 14:49:37 -07:00
shmem.c
tmpfs: don't undo fallocate past its last page
2016-06-24 17:23:52 -07:00
slab_common.c
mm: kasan: initial memory quarantine implementation
2016-05-20 17:58:30 -07:00
slab.c
mm, kasan: don't call kasan_krealloc() from ksize().
2016-05-20 17:58:30 -07:00
slab.h
mm: kasan: initial memory quarantine implementation
2016-05-20 17:58:30 -07:00
slob.c
mm: slab: free kmem_cache_node after destroy sysfs file
2016-02-18 16:23:24 -08:00
slub.c
mm, kasan: don't call kasan_krealloc() from ksize().
2016-05-20 17:58:30 -07:00
sparse-vmemmap.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
sparse.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
swap_cgroup.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
swap_state.c
mm: thp: broken page count after commit aa88b68c3b1d
2016-06-09 14:23:11 -07:00
swap.c
mm/swap.c: flush lru pvecs on compound page arrival
2016-06-24 17:23:52 -07:00
swapfile.c
mm: thp: calculate the mapcount correctly for THP pages during WP faults
2016-05-12 15:52:50 -07:00
truncate.c
dax: New fault locking
2016-05-19 15:20:54 -06:00
userfaultfd.c
mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros
2016-04-04 10:41:08 -07:00
util.c
mm: make vm_mmap killable
2016-05-23 17:04:14 -07:00
vmacache.c
mm/vmacache: inline vmacache_valid_mm()
2015-11-05 19:34:48 -08:00
vmalloc.c
mm: fix overflow in vm_map_ram()
2016-06-03 15:06:22 -07:00
vmpressure.c
mm/vmpressure.c: fix subtree pressure detection
2016-02-03 08:28:43 -08:00
vmscan.c
mm, oom: rework oom detection
2016-05-20 17:58:30 -07:00
vmstat.c
mm: check the return value of lookup_page_ext for all call sites
2016-06-03 15:06:22 -07:00
workingset.c
mm: workingset: make shadow node shrinker memcg aware
2016-03-17 15:09:34 -07:00
z3fold.c
mm/z3fold.c: avoid modifying HEADLESS page and minor cleanup
2016-06-03 16:02:55 -07:00
zbud.c
mm/zbud.c: use list_last_entry() instead of list_tail_entry()
2016-01-15 11:40:52 -08:00
zpool.c
mm: zsmalloc: constify struct zs_pool name
2015-11-06 17:50:42 -08:00
zsmalloc.c
update "mm/zsmalloc: don't fail if can't create debugfs info"
2016-05-26 15:35:44 -07:00
zswap.c
mm/zswap: use workqueue to destroy pool
2016-05-20 17:58:30 -07:00