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9cb12d7b4ccaa976f97ce0c5fd0f1b6a83bc2a75
linux/mm
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Grazvydas Ignotas 9cb12d7b4c mm/memory.c: actually remap enough memory 
For whatever reason, generic_access_phys() only remaps one page, but
actually allows to access arbitrary size.  It's quite easy to trigger
large reads, like printing out large structure with gdb, which leads to a
crash.  Fix it by remapping correct size.

Fixes: 28b2ee20c7 ("access_process_vm device memory infrastructure")
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Cc: Rik van Riel <riel@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>
2015-02-12 18:54:11 -08:00
..
backing-dev.c
Merge branch 'for-3.18/core' of git://git.kernel.dk/linux-block
2014-10-18 11:53:51 -07:00
balloon_compaction.c
mm/balloon_compaction: fix deflation when compaction is disabled
2014-10-29 16:33:15 -07:00
bootmem.c
mem-hotplug: reset node managed pages when hot-adding a new pgdat
2014-11-13 16:17:06 -08:00
cleancache.c
mm: fix cleancache debugfs directory path
2015-01-20 14:08:31 +01:00
cma.c
mm: cma: fix totalcma_pages to include DT defined CMA regions
2015-02-11 17:06:03 -08:00
compaction.c
mm/compaction: stop the isolation when we isolate enough freepage
2015-02-12 18:54:10 -08:00
debug-pagealloc.c
mm/debug-pagealloc: make debug-pagealloc boottime configurable
2014-12-13 12:42:48 -08:00
debug.c
mm: account pmd page tables to the process
2015-02-11 17:06:04 -08:00
dmapool.c
mm/dmapool.c: fixed a brace coding style issue
2014-10-09 22:26:00 -04:00
early_ioremap.c
mm: create generic early_ioremap() support
2014-04-07 16:36:15 -07:00
fadvise.c
mm: fadvise: document the fadvise(FADV_DONTNEED) behaviour for partial pages
2014-12-13 12:42:49 -08:00
failslab.c
…
filemap_xip.c
mm: drop vm_ops->remap_pages and generic_file_remap_pages() stub
2015-02-10 14:30:30 -08:00
filemap.c
mm: drop vm_ops->remap_pages and generic_file_remap_pages() stub
2015-02-10 14:30:30 -08:00
frontswap.c
mm/frontswap.c: fix the condition in BUG_ON
2014-12-10 17:41:08 -08:00
gup.c
mm: convert p[te|md]_numa users to p[te|md]_protnone_numa
2015-02-12 18:54:08 -08:00
highmem.c
mm/highmem: make kmap cache coloring aware
2014-08-06 18:01:22 -07:00
huge_memory.c
mm: numa: avoid unnecessary TLB flushes when setting NUMA hinting entries
2015-02-12 18:54:08 -08:00
hugetlb_cgroup.c
mm: page_counter: pull "-1" handling out of page_counter_memparse()
2015-02-11 17:06:02 -08:00
hugetlb.c
mm: account pmd page tables to the process
2015-02-11 17:06:04 -08:00
hwpoison-inject.c
mm/hwpoison-inject.c: remove unnecessary null test before debugfs_remove_recursive
2014-08-06 18:01:19 -07:00
init-mm.c
…
internal.h
mm/internal.h: don't split printk call in two
2015-02-12 18:54:10 -08:00
interval_tree.c
mm: replace vma->sharead.linear with vma->shared
2015-02-10 14:30:31 -08:00
iov_iter.c
copy_from_iter_nocache()
2014-12-08 20:25:23 -05:00
Kconfig
rcu: Make SRCU optional by using CONFIG_SRCU
2015-01-06 11:04:29 -08:00
Kconfig.debug
mm/debug_pagealloc: remove obsolete Kconfig options
2015-01-08 15:10:52 -08:00
kmemcheck.c
mm/slab_common: move kmem_cache definition to internal header
2014-10-09 22:25:50 -04:00
kmemleak-test.c
mm/kmemleak-test.c: use pr_fmt for logging
2014-06-06 16:08:18 -07:00
kmemleak.c
mm: introduce kmemleak_update_trace()
2014-06-06 16:08:17 -07:00
ksm.c
mm: remove rest usage of VM_NONLINEAR and pte_file()
2015-02-10 14:30:31 -08:00
list_lru.c
memcg: reparent list_lrus and free kmemcg_id on css offline
2015-02-12 18:54:10 -08:00
maccess.c
…
madvise.c
mm: remove rest usage of VM_NONLINEAR and pte_file()
2015-02-10 14:30:31 -08:00
Makefile
mm: replace remap_file_pages() syscall with emulation
2015-02-10 14:30:30 -08:00
memblock.c
mm/memblock.c: refactor functions to set/clear MEMBLOCK_HOTPLUG
2014-12-13 12:42:46 -08:00
memcontrol.c
memcg: cleanup static keys decrement
2015-02-12 18:54:10 -08:00
memory_hotplug.c
mm, memory_hotplug/failure: drain single zone pcplists
2014-12-10 17:41:05 -08:00
memory-failure.c
vmscan: per memory cgroup slab shrinkers
2015-02-12 18:54:09 -08:00
memory.c
mm/memory.c: actually remap enough memory
2015-02-12 18:54:11 -08:00
mempolicy.c
mm: convert p[te|md]_mknonnuma and remaining page table manipulations
2015-02-12 18:54:08 -08:00
mempool.c
mm/mempool.c: update the kmemleak stack trace for mempool allocations
2014-06-06 16:08:17 -07:00
migrate.c
mm: convert p[te|md]_mknonnuma and remaining page table manipulations
2015-02-12 18:54:08 -08:00
mincore.c
mincore: apply page table walker on do_mincore()
2015-02-11 17:06:06 -08:00
mlock.c
Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-10-13 15:44:12 +02:00
mm_init.c
mm/mm_init.c: mark mminit_loglevel __meminitdata
2015-02-12 18:54:11 -08:00
mmap.c
mm/mmap.c: fix arithmetic overflow in __vm_enough_memory()
2015-02-11 17:06:07 -08:00
mmu_context.c
sched/mm: call finish_arch_post_lock_switch in idle_task_exit and use_mm
2014-02-21 08:50:17 +01:00
mmu_notifier.c
mmu_notifier: add the callback for mmu_notifier_invalidate_range()
2014-11-13 13:46:09 +11:00
mmzone.c
mm: microoptimize zonelist operations
2015-02-11 17:06:02 -08:00
mprotect.c
mm: numa: avoid unnecessary TLB flushes when setting NUMA hinting entries
2015-02-12 18:54:08 -08:00
mremap.c
mm: remove rest usage of VM_NONLINEAR and pte_file()
2015-02-10 14:30:31 -08:00
msync.c
mm: remove rest usage of VM_NONLINEAR and pte_file()
2015-02-10 14:30:31 -08:00
nobootmem.c
mem-hotplug: reset node managed pages when hot-adding a new pgdat
2014-11-13 16:17:06 -08:00
nommu.c
mm/nommu.c: fix arithmetic overflow in __vm_enough_memory()
2015-02-11 17:06:07 -08:00
oom_kill.c
mm: account pmd page tables to the process
2015-02-11 17:06:04 -08:00
page_alloc.c
mm/page_alloc.c: pull out init code from build_all_zonelists
2015-02-12 18:54:11 -08:00
page_counter.c
mm: page_counter: pull "-1" handling out of page_counter_memparse()
2015-02-11 17:06:02 -08:00
page_ext.c
mm/page_owner: keep track of page owners
2014-12-13 12:42:48 -08:00
page_io.c
fix __swap_writepage() compile failure on old gcc versions
2014-06-14 19:30:48 -05:00
page_isolation.c
mm, page_isolation: drain single zone pcplists
2014-12-10 17:41:05 -08:00
page_owner.c
mm/page_owner.c: remove unnecessary stack_trace field
2015-02-11 17:06:07 -08:00
page-writeback.c
page_writeback: put account_page_redirty() after set_page_dirty()
2015-02-11 17:06:04 -08:00
pagewalk.c
mm: pagewalk: fix misbehavior of walk_page_range for vma(VM_PFNMAP)
2015-02-11 17:06:06 -08:00
percpu-km.c
percpu: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated
2014-09-02 14:46:05 -04:00
percpu-vm.c
percpu: move region iterations out of pcpu_[de]populate_chunk()
2014-09-02 14:46:02 -04:00
percpu.c
percpu: off by one in BUG_ON()
2014-10-29 10:34:34 -04:00
pgtable-generic.c
mm: convert p[te|md]_mknonnuma and remaining page table manipulations
2015-02-12 18:54:08 -08:00
process_vm_access.c
mm: gup: use get_user_pages_unlocked
2015-02-11 17:06:05 -08:00
quicklist.c
…
readahead.c
mm/readahead.c: remove unused file_ra_state from count_history_pages
2014-08-06 18:01:15 -07:00
rmap.c
mm: memcontrol: track move_lock state internally
2015-02-11 17:06:00 -08:00
shmem.c
swap: remove unused mem_cgroup_uncharge_swapcache declaration
2015-02-11 17:06:00 -08:00
slab_common.c
slub: make dead caches discard free slabs immediately
2015-02-12 18:54:10 -08:00
slab.c
slub: make dead caches discard free slabs immediately
2015-02-12 18:54:10 -08:00
slab.h
slub: make dead caches discard free slabs immediately
2015-02-12 18:54:10 -08:00
slob.c
slub: make dead caches discard free slabs immediately
2015-02-12 18:54:10 -08:00
slub.c
slub: make dead caches discard free slabs immediately
2015-02-12 18:54:10 -08:00
sparse-vmemmap.c
…
sparse.c
mm: use macros from compiler.h instead of __attribute__((...))
2014-04-07 16:35:54 -07:00
swap_cgroup.c
mm: page_cgroup: rename file to mm/swap_cgroup.c
2014-12-10 17:41:09 -08:00
swap_state.c
mm: page_cgroup: rename file to mm/swap_cgroup.c
2014-12-10 17:41:09 -08:00
swap.c
rmap: drop support of non-linear mappings
2015-02-10 14:30:31 -08:00
swapfile.c
mm: page_cgroup: rename file to mm/swap_cgroup.c
2014-12-10 17:41:09 -08:00
truncate.c
mm: Fix comment before truncate_setsize()
2014-11-07 08:29:25 +11:00
util.c
mm: gup: use get_user_pages_unlocked within get_user_pages_fast
2015-02-11 17:06:05 -08:00
vmacache.c
mm,vmacache: count number of system-wide flushes
2014-12-13 12:42:48 -08:00
vmalloc.c
mm/vmalloc.c: fix memory ordering bug
2014-12-13 12:42:49 -08:00
vmpressure.c
mm/vmpressure.c: fix race in vmpressure_work_fn()
2014-12-02 17:32:07 -08:00
vmscan.c
vmscan: per memory cgroup slab shrinkers
2015-02-12 18:54:09 -08:00
vmstat.c
vmstat: Reduce time interval to stat update on idle cpu
2015-02-11 17:06:07 -08:00
workingset.c
list_lru: add helpers to isolate items
2015-02-12 18:54:10 -08:00
zbud.c
mm/zbud: init user ops only when it is needed
2014-12-13 12:42:51 -08:00
zpool.c
mm/zpool: use prefixed module loading
2014-08-29 16:28:16 -07:00
zsmalloc.c
mm/zsmalloc: adjust order of functions
2014-12-18 19:08:11 -08:00
zswap.c
mm/zswap: delete unnecessary check before calling free_percpu()
2014-12-13 12:42:50 -08:00