Grazvydas Ignotas 9113c468b6 mm/memory.c: actually remap enough memory ...

commit 9cb12d7b4c upstream.

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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2015-03-18 13:22:28 +01:00

..

backing-dev.c

bdi: avoid oops on device removal

2014-04-26 17:15:35 -07:00

balloon_compaction.c

mm: introduce a common interface for balloon pages mobility

2012-12-11 17:22:26 -08:00

bootmem.c

mm: Add alloc_bootmem_low_pages_nopanic()

2013-01-29 19:32:59 -08:00

bounce.c

mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored

2013-10-13 16:08:33 -07:00

cleancache.c

mm: cleancache: clean up cleancache_enabled

2013-04-30 17:04:01 -07:00

compaction.c

mm/compaction: fix wrong order check in compact_finished()

2015-03-18 13:22:28 +01:00

debug-pagealloc.c

mm, x86: Remove debug_pagealloc_enabled

2011-12-06 09:24:07 +01:00

dmapool.c

dmapool: make DMAPOOL_DEBUG detect corruption of free marker

2012-12-11 17:22:24 -08:00

fadvise.c

teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long

2013-03-03 22:46:22 -05:00

failslab.c

switch debugfs to umode_t

2012-01-03 22:54:56 -05:00

filemap_xip.c

lift sb_start_write() out of ->write()

2013-04-09 14:12:56 -04:00

filemap.c

mm: memcg: handle non-error OOM situations more gracefully

2014-11-21 09:22:56 -08:00

fremap.c

mm: fix use-after-free in sys_remap_file_pages

2014-01-09 12:24:24 -08:00

frontswap.c

mm: frontswap: invalidate expired data on a dup-store failure

2014-12-16 09:09:41 -08:00

highmem.c

Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2012-12-20 08:37:05 -08:00

huge_memory.c

mm: numa: Do not mark PTEs pte_numa when splitting huge pages

2014-10-09 12:18:42 -07:00

hugetlb_cgroup.c

mm/hugetlb: create hugetlb cgroup file in hugetlb_init

2012-12-18 15:02:15 -08:00

hugetlb.c

mm/hugetlb: add migration entry check in __unmap_hugepage_range

2015-03-18 13:22:27 +01:00

hwpoison-inject.c

memcg: rename config variables

2012-07-31 18:42:43 -07:00

init-mm.c

atomic: use <linux/atomic.h>

2011-07-26 16:49:47 -07:00

internal.h

mm: accelerate munlock() treatment of THP pages

2013-02-27 19:10:09 -08:00

interval_tree.c

mm: add CONFIG_DEBUG_VM_RB build option

2012-10-09 16:22:42 +09:00

Kconfig

mmKconfig: add an option to disable bounce

2013-04-29 15:54:40 -07:00

Kconfig.debug

mm: more intensive memory corruption debugging

2012-01-10 16:30:42 -08:00

kmemcheck.c

kmemcheck: Fix build errors due to missing slab.h

2010-03-30 22:02:32 +09:00

kmemleak-test.c

kmemleak: remove memset by using kzalloc

2011-01-27 18:31:51 +00:00

kmemleak.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ksm.c

mm: close PageTail race

2014-04-03 12:01:05 -07:00

maccess.c

mm: Map most files to use export.h instead of module.h

2011-10-31 09:20:12 -04:00

madvise.c

mm: madvise: complete input validation before taking lock

2013-04-29 15:54:37 -07:00

Makefile

memcg: add memory.pressure_level events

2013-04-29 15:54:38 -07:00

memblock.c

memblock: fix missing comment of memblock_insert_region()

2013-04-29 15:54:38 -07:00

memcontrol.c

mm: memcg: handle non-error OOM situations more gracefully

2014-11-21 09:22:56 -08:00

memory_hotplug.c

mm/memory_hotplug.c: fix printk format warnings

2013-05-24 16:22:52 -07:00

memory-failure.c

mm/memory-failure.c: don't let collect_procs() skip over processes for MF_ACTION_REQUIRED

2014-06-30 20:09:42 -07:00

memory.c

mm/memory.c: actually remap enough memory

2015-03-18 13:22:28 +01:00

mempolicy.c

cpuset,mempolicy: fix sleeping function called from invalid context

2014-07-17 15:58:00 -07:00

mempool.c

mempool: add @gfp_mask to mempool_create_node()

2012-06-25 11:53:47 +02:00

migrate.c

mm: numa: avoid unnecessary work on the failure path

2014-01-09 12:24:23 -08:00

mincore.c

swap: make each swap partition have one address_space

2013-02-23 17:50:17 -08:00

mlock.c

mm: try_to_unmap_cluster() should lock_page() before mlocking

2014-05-06 07:55:32 -07:00

mm_init.c

mm: init: report on last-nid information stored in page->flags

2013-02-23 17:50:18 -08:00

mmap.c

mm/mmap.c: fix arithmetic overflow in __vm_enough_memory()

2015-03-18 13:22:27 +01:00

mmu_context.c

mm: remove old aio use_mm() comment

2013-05-07 18:38:27 -07:00

mmu_notifier.c

mm: mmu_notifier: re-fix freed page still mapped in secondary MMU

2013-05-24 16:22:51 -07:00

mmzone.c

mm: rename page struct field helpers

2013-02-23 17:50:18 -08:00

mprotect.c

mm: fix TLB flush race between migration, and change_protection_range

2014-01-09 12:24:23 -08:00

mremap.c

mm, thp: close race between mremap() and split_huge_page()

2014-06-07 13:25:31 -07:00

msync.c

sanitize vfs_fsync calling conventions

2010-05-21 18:31:21 -04:00

nobootmem.c

mm, nobootmem: do memset() after memblock_reserve()

2013-04-29 15:54:39 -07:00

nommu.c

mm/nommu.c: fix arithmetic overflow in __vm_enough_memory()

2015-03-18 13:22:28 +01:00

oom_kill.c

mm: memcg: handle non-error OOM situations more gracefully

2014-11-21 09:22:56 -08:00

page_alloc.c

OOM, PM: OOM killed task shouldn't escape PM suspend

2014-11-14 08:47:58 -08:00

page_cgroup.c

cgroup/kmemleak: add kmemleak_free() for cgroup deallocations.

2014-11-14 08:47:59 -08:00

page_io.c

Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block

2013-05-08 10:13:35 -07:00

page_isolation.c

mm: fix zone_watermark_ok_safe() accounting of isolated pages

2013-01-04 16:11:46 -08:00

page-writeback.c

mm: __set_page_dirty_nobuffers() uses spin_lock_irqsave() instead of spin_lock_irq()

2014-02-20 11:06:11 -08:00

pagewalk.c

mm: pagewalk: call pte_hole() for VM_PFNMAP during walk_page_range

2015-02-11 14:48:16 +08:00

percpu-km.c

percpu: clear memory allocated with the km allocator

2010-10-02 10:28:42 +03:00

percpu-vm.c

percpu: perform tlb flush after pcpu_map_pages() failure

2014-10-05 14:54:13 -07:00

percpu.c

Revert "percpu: free percpu allocation info for uniprocessor system"

2014-11-14 08:47:53 -08:00

pgtable-generic.c

mm: fix TLB flush race between migration, and change_protection_range

2014-01-09 12:24:23 -08:00

process_vm_access.c

Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys

2013-03-12 11:05:45 -07:00

quicklist.c

mm: delete various needless include <linux/module.h>

2011-10-31 09:20:11 -04:00

readahead.c

teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long

2013-03-03 22:46:22 -05:00

rmap.c

mm: fix sleeping function warning from __put_anon_vma

2014-06-30 20:09:42 -07:00

shmem.c

shmem: fix nlink for rename overwrite directory

2014-10-05 14:54:11 -07:00

slab_common.c

slab_common: fix the check for duplicate slab names

2014-07-31 12:53:50 -07:00

slab.c

slab: fix init_lock_keys

2013-07-21 18:21:26 -07:00

slab.h

memcg: check that kmem_cache has memcg_params before accessing it

2013-09-07 22:09:58 -07:00

slob.c

mm: rename page struct field helpers

2013-02-23 17:50:18 -08:00

slub.c

slub: Fix calculation of cpu slabs

2014-02-13 13:48:00 -08:00

sparse-vmemmap.c

sparse-vmemmap: specify vmemmap population range in bytes

2013-04-29 15:54:35 -07:00

sparse.c

mm, hotplug: avoid compiling memory hotremove functions when disabled

2013-04-29 15:54:37 -07:00

swap_state.c

swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion

2013-06-12 16:29:45 -07:00

swap.c

mm: close PageTail race

2014-04-03 12:01:05 -07:00

swapfile.c

frontswap: fix incorrect zeroing and allocation size for frontswap_map

2013-06-12 16:29:46 -07:00

truncate.c

mm: Remove false WARN_ON from pagecache_isize_extended()

2014-11-14 08:48:00 -08:00

util.c

vm_is_stack: use for_each_thread() rather then buggy while_each_thread()

2014-10-05 14:54:16 -07:00

vmalloc.c

mm/vmalloc.c: fix an overflow bug in alloc_vmap_area()

2013-11-13 12:05:34 +09:00

vmpressure.c

memcg: add memory.pressure_level events

2013-04-29 15:54:38 -07:00

vmscan.c

mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed

2015-01-16 06:59:03 -08:00

vmstat.c

mm: numa: return the number of base pages altered by protection changes

2013-12-08 07:29:27 -08:00