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Mike Rapoport b228237193 userfaultfd: non-cooperative: notify about unmap of destination during mremap 
When mremap is called with MREMAP_FIXED it unmaps memory at the
destination address without notifying userfaultfd monitor.

If the destination were registered with userfaultfd, the monitor has no
way to distinguish between the old and new ranges and to properly relate
the page faults that would occur in the destination region.

Fixes: 897ab3e0c49e ("userfaultfd: non-cooperative: add event for memory unmaps")
Link: http://lkml.kernel.org/r/1500276876-3350-1-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Pavel Emelyanov <xemul@virtuozzo.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-08-02 16:34:46 -07:00
..
kasan
kasan: make get_wild_bug_type() static
2017-07-10 16:32:33 -07:00
backing-dev.c
bdi: Drop 'parent' argument from bdi_register[_va]()
2017-04-20 12:09:55 -06:00
balloon_compaction.c
mm/balloon_compaction.c: enqueue zero page to balloon device
2017-07-10 16:32:32 -07:00
bootmem.c
mm/bootmem.c: cosmetic improvement of code readability
2017-02-22 16:41:29 -08:00
cleancache.c
fs: switch ->s_uuid to uuid_t
2017-06-05 16:59:12 +02:00
cma_debug.c
cma: Store a name in the cma structure
2017-04-18 20:41:12 +02:00
cma.c
cma: fix calculation of aligned offset
2017-07-10 16:32:32 -07:00
cma.h
cma: Store a name in the cma structure
2017-04-18 20:41:12 +02:00
compaction.c
mm, compaction: skip over holes in __reset_isolation_suitable
2017-07-06 16:24:32 -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, debug: print raw struct page data in __dump_page()
2016-12-12 18:55:08 -08:00
dmapool.c
lib/vsprintf.c: remove %Z support
2017-02-27 18:43:47 -08:00
early_ioremap.c
…
fadvise.c
mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEED
2016-12-20 09:48:46 -08:00
failslab.c
mm: fault-inject take over bootstrap kmem_cache check
2016-03-15 16:55:16 -07:00
filemap.c
mm: hugetlb: return immediately for hugetlb page in __delete_from_page_cache()
2017-07-10 16:32:30 -07:00
frame_vector.c
treewide: use kv[mz]alloc* rather than opencoded variants
2017-05-08 17:15:13 -07:00
frontswap.c
mm, frontswap: convert frontswap_enabled to static key
2016-07-26 16:19:19 -07:00
gup.c
mm, gup: ensure real head page is ref-counted when using hugepages
2017-07-06 16:24:34 -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
mm, THP, swap: check whether THP can be split firstly
2017-07-06 16:24:31 -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.c: __get_user_pages ignores certain follow_hugetlb_page errors
2017-08-02 16:34:46 -07:00
hwpoison-inject.c
mm: hwpoison: call shake_page() unconditionally
2017-05-03 15:52:12 -07:00
init-mm.c
mm: Add a user_ns owner to mm_struct and fix ptrace permission checks
2016-11-22 11:49:48 -06:00
internal.h
mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
2017-08-02 16:34:46 -07:00
interval_tree.c
…
Kconfig
mm/kasan: add support for memory hotplug
2017-07-10 16:32:33 -07:00
Kconfig.debug
mm: enable page poisoning early at boot
2017-05-03 15:52:10 -07:00
khugepaged.c
mm: make PR_SET_THP_DISABLE immediately active
2017-07-10 16:32:31 -07:00
kmemcheck.c
mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU
2017-04-18 11:42:36 -07:00
kmemleak-test.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
kmemleak.c
mm: kmemleak: treat vm_struct as alternative reference to vmalloc'ed objects
2017-07-06 16:24:34 -07:00
ksm.c
ksm: optimize refile of stable_node_dup at the head of the chain
2017-07-06 16:24:31 -07:00
list_lru.c
mm/list_lru.c: fix list_lru_count_node() to be race free
2017-07-10 16:32:33 -07:00
maccess.c
x86: remove more uaccess_32.h complexity
2016-05-22 17:21:27 -07:00
madvise.c
mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
2017-08-02 16:34:46 -07:00
Makefile
percpu: expose statistics about percpu memory via debugfs
2017-06-20 15:31:38 -04:00
memblock.c
mm, memory_hotplug: move movable_node to the hotplug proper
2017-07-06 16:24:35 -07:00
memcontrol.c
mm, memcg: fix potential undefined behavior in mem_cgroup_event_ratelimit()
2017-07-10 16:32:32 -07:00
memory_hotplug.c
mm/memory-hotplug: switch locking to a percpu rwsem
2017-07-10 16:32:33 -07:00
memory-failure.c
mm, hugetlb, soft_offline: use new_page_nodemask for soft offline migration
2017-07-10 16:32:32 -07:00
memory.c
mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
2017-08-02 16:34:46 -07:00
mempolicy.c
mm, migration: do not trigger OOM killer when migrating memory
2017-07-12 16:26:04 -07:00
mempool.c
sched/wait: Rename wait_queue_t => wait_queue_entry_t
2017-06-20 12:18:27 +02:00
memtest.c
…
migrate.c
mm/migrate.c: stabilise page count when migrating transparent hugepages
2017-07-10 16:32:31 -07:00
mincore.c
mm: remove shmem_mapping() shmem_zero_setup() duplicates
2017-02-24 17:46:56 -08:00
mlock.c
mlock: fix mlock count can not decrease in race condition
2017-06-02 15:07:38 -07:00
mm_init.c
mm: convert printk(KERN_<LEVEL> to pr_<level>
2016-03-17 15:09:34 -07:00
mmap.c
mm: fix overflow check in expand_upwards()
2017-07-14 15:05:12 -07:00
mmu_context.c
sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>
2017-03-02 08:42:38 +01:00
mmu_notifier.c
mm: Use static initialization for "srcu"
2017-04-18 11:38:22 -07:00
mmzone.c
mm/mmzone.c: swap likely to unlikely as code logic is different for next_zones_zonelist()
2017-02-22 16:41:29 -08:00
mprotect.c
mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
2017-08-02 16:34:46 -07:00
mremap.c
userfaultfd: non-cooperative: notify about unmap of destination during mremap
2017-08-02 16:34:46 -07:00
msync.c
…
nobootmem.c
mm/nobootmem.c: return 0 when start_pfn equals end_pfn
2017-07-06 16:24:31 -07:00
nommu.c
mm, vmalloc: use __GFP_HIGHMEM implicitly
2017-05-08 17:15:13 -07:00
oom_kill.c
mm/oom_kill.c: add tracepoints for oom reaper-related events
2017-07-10 16:32:32 -07:00
page_alloc.c
mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic
2017-07-12 16:26:03 -07:00
page_counter.c
…
page_ext.c
mm: enable page poisoning early at boot
2017-05-03 15:52:10 -07:00
page_idle.c
mm: make rmap_one boolean function
2017-05-03 15:52:10 -07:00
page_io.c
swap: add block io poll in swapin path
2017-07-10 16:32:30 -07:00
page_isolation.c
mm: unify new_node_page and alloc_migrate_target
2017-07-10 16:32:31 -07:00
page_owner.c
mm: avoid taking zone lock in pagetypeinfo_showmixed()
2017-07-10 16:32:32 -07:00
page_poison.c
mm: enable page poisoning early at boot
2017-05-03 15:52:10 -07:00
page_vma_mapped.c
mm/hugetlb: add size parameter to huge_pte_offset()
2017-07-06 16:24:34 -07:00
page-writeback.c
writeback: rework wb_[dec|inc]_stat family of functions
2017-07-12 16:26:05 -07:00
pagewalk.c
mm/hugetlb: add size parameter to huge_pte_offset()
2017-07-06 16:24:34 -07:00
percpu-internal.h
percpu: fix early calls for spinlock in pcpu_stats
2017-06-21 13:53:52 -04:00
percpu-km.c
percpu: fix static checker warnings in pcpu_destroy_chunk
2017-06-29 11:23:38 -04:00
percpu-stats.c
percpu: expose statistics about percpu memory via debugfs
2017-06-20 15:31:38 -04:00
percpu-vm.c
percpu: fix static checker warnings in pcpu_destroy_chunk
2017-06-29 11:23:38 -04:00
percpu.c
percpu: resolve err may not be initialized in pcpu_alloc
2017-06-21 12:00:45 -04:00
pgtable-generic.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
process_vm_access.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/mm.h>
2017-03-02 08:42:28 +01:00
quicklist.c
fix Christoph's email addresses
2016-03-17 15:09:34 -07:00
readahead.c
mm: don't cap request size based on read-ahead setting
2016-12-12 18:55:08 -08:00
rmap.c
mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries
2017-08-02 16:34:46 -07:00
rodata_test.c
mm: remove rodata_test_data export, add pr_fmt
2017-05-03 15:52:09 -07:00
shmem.c
mm: make PR_SET_THP_DISABLE immediately active
2017-07-10 16:32:31 -07:00
slab_common.c
mm: allow slab_nomerge to be set at build time
2017-07-06 16:24:31 -07:00
slab.c
mm: memcontrol: account slab stats per lruvec
2017-07-06 16:24:35 -07:00
slab.h
mm: memcontrol: account slab stats per lruvec
2017-07-06 16:24:35 -07:00
slob.c
mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU
2017-04-18 11:42:36 -07:00
slub.c
mm: memcontrol: account slab stats per lruvec
2017-07-06 16:24:35 -07:00
sparse-vmemmap.c
mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic
2017-07-12 16:26:03 -07:00
sparse.c
mm, memory_hotplug: do not associate hotadded memory to zones until online
2017-07-06 16:24:32 -07:00
swap_cgroup.c
mm, THP, swap: delay splitting THP during swap out
2017-07-06 16:24:31 -07:00
swap_slots.c
mm/swap_slots.c: don't disable preemption while taking the per-CPU cache
2017-07-10 16:32:32 -07:00
swap_state.c
swap: add block io poll in swapin path
2017-07-10 16:32:30 -07:00
swap.c
mm: swap: provide lru_add_drain_all_cpuslocked()
2017-07-10 16:32:33 -07:00
swapfile.c
swap: add block io poll in swapin path
2017-07-10 16:32:30 -07:00
truncate.c
mm/truncate.c: fix THP handling in invalidate_mapping_pages()
2017-07-10 16:32:32 -07:00
usercopy.c
mm/usercopy: Drop extra is_vmalloc_or_module() check
2017-04-05 12:30:18 -07:00
userfaultfd.c
mm: convert generic code to 5-level paging
2017-03-09 11:48:47 -08:00
util.c
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-07-15 12:00:42 -07:00
vmacache.c
sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>
2017-03-02 08:42:38 +01:00
vmalloc.c
mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic
2017-07-12 16:26:03 -07:00
vmpressure.c
mm, vmpressure: pass-through notification support
2017-07-10 16:32:31 -07:00
vmscan.c
mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic
2017-07-12 16:26:03 -07:00
vmstat.c
mm: avoid taking zone lock in pagetypeinfo_showmixed()
2017-07-10 16:32:32 -07:00
workingset.c
mm: memcontrol: per-lruvec stats infrastructure
2017-07-06 16:24:35 -07:00
z3fold.c
z3fold: fix page locking in z3fold_alloc()
2017-04-13 18:24:20 -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
mm/zsmalloc: simplify zs_max_alloc_size handling
2017-07-10 16:32:33 -07:00
zswap.c
mm/zswap.c: delete an error message for a failed memory allocation in zswap_dstmem_prepare()
2017-07-06 16:24:35 -07:00