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Helge Deller d8c638914b mm: fix overflow check in expand_upwards() 
commit 37511fb5c91db93d8bd6e3f52f86e5a7ff7cfcdf upstream.

Jörn Engel noticed that the expand_upwards() function might not return
-ENOMEM in case the requested address is (unsigned long)-PAGE_SIZE and
if the architecture didn't defined TASK_SIZE as multiple of PAGE_SIZE.

Affected architectures are arm, frv, m68k, blackfin, h8300 and xtensa
which all define TASK_SIZE as 0xffffffff, but since none of those have
an upwards-growing stack we currently have no actual issue.

Nevertheless let's fix this just in case any of the architectures with
an upward-growing stack (currently parisc, metag and partly ia64) define
TASK_SIZE similar.

Link: http://lkml.kernel.org/r/20170702192452.GA11868@p100.box
Fixes: bd726c90b6b8 ("Allow stack to grow up to address space limit")
Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: Jörn Engel <joern@purestorage.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Oleg Nesterov <oleg@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>
Signed-off-by: Willy Tarreau <w@1wt.eu>
 		2019-07-27 21:44:38 +02:00
..
kasan kasan, module, vmalloc: rework shadow allocation for modules 2015-05-04 14:03:58 -07:00
Kconfig Import T813XXS2BRC2 kernel source changes 2018-05-26 00:39:42 +02:00
Kconfig.debug
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Makefile BACKPORT: mm/zpool: implement common zpool api to zbud/zsmalloc 2016-05-18 14:35:03 +05:30
backing-dev.c
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balloon_compaction.c
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bootmem.c
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bounce.c
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cleancache.c
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compaction.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
debug-pagealloc.c mm/debug-pagealloc.c: print page physical address for 2015-08-23 23:19:22 -07:00
dmapool.c
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early_ioremap.c
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fadvise.c
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failslab.c
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filemap.c mm, fs: check for fatal signals in do_generic_file_read() 2019-07-27 21:43:51 +02:00
filemap_xip.c
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fremap.c
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frontswap.c
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highmem.c
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huge_memory.c mm/huge_memory.c: respect FOLL_FORCE/FOLL_COW for thp 2019-07-27 21:43:25 +02:00
hugetlb.c mm: hugetlbfs: skip shared VMAs when unmapping private pages to satisfy a fault 2015-10-22 14:37:50 -07:00
hugetlb_cgroup.c
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hwpoison-inject.c
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init-mm.c
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internal.h mm: Enhance per process reclaim to consider shared pages 2015-04-16 10:14:27 -07:00
interval_tree.c
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kmemcheck.c
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kmemleak-test.c
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kmemleak.c mm: kmemleak: allow safe memory scanning during kmemleak disabling 2015-06-22 10:47:32 +05:30
ksm.c mm,ksm: fix endless looping in allocating memory when ksm enable 2019-07-27 21:42:51 +02:00
maccess.c
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madvise.c
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memblock.c
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memcontrol.c UPSTREAM: memcg: Only free spare array when readers are done 2016-05-18 14:36:06 +05:30
memory-failure.c This is the 3.10.98 stable release 2017-04-18 17:17:24 +02:00
memory.c mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED 2019-07-27 21:42:02 +02:00
memory_hotplug.c mm/memory_hotplug.c: check start_pfn in test_pages_in_a_zone() 2019-07-27 21:43:51 +02:00
mempolicy.c mm/mempolicy.c: fix error handling in set_mempolicy and mbind. 2017-04-22 23:02:48 +02:00
mempool.c
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memtest.c memtest: use phys_addr_t for physical addresses 2015-04-01 09:27:43 -07:00
migrate.c squash mm: Export migrate_page_... : also make it non-static 2019-07-27 21:42:00 +02:00
mincore.c
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mlock.c mm: reorder can_do_mlock to fix audit denial 2015-09-16 18:20:13 +05:30
mm_init.c
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mmap.c mm: fix overflow check in expand_upwards() 2019-07-27 21:44:38 +02:00
mmu_context.c
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mmu_notifier.c
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mmzone.c
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mprotect.c
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mremap.c
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msync.c
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nobootmem.c
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nommu.c This is the 3.10.73 stable release 2015-04-24 18:14:57 -07:00
oom_kill.c This is the 3.10.67 stable release 2015-04-24 18:04:40 -07:00
page-writeback.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
page_alloc.c mm/page_alloc: Remove kernel address exposure in free_reserved_area() 2019-07-27 21:44:12 +02:00
page_cgroup.c
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page_io.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
page_isolation.c mm/page_alloc: Call kernel_map_pages in unset_migrateype_isolate 2015-03-19 11:34:36 -07:00
pageowner.c
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pagewalk.c
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percpu-km.c
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percpu-vm.c
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percpu.c
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pgtable-generic.c
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process_reclaim.c lowmemorykiller: Introduce sysfs node for ALMK and PPR adj threshold 2016-07-06 23:07:02 -07:00
process_vm_access.c ptrace: use fsuid, fsgid, effective creds for fs access checks 2016-02-25 11:57:47 -08:00
quicklist.c
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readahead.c
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rmap.c mm: Enhance per process reclaim to consider shared pages 2015-04-16 10:14:27 -07:00
shmem.c tmpfs: fix regression hang in fallocate undo 2019-07-27 21:41:47 +02:00
showmem.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
slab.c mm: slub: add kernel address sanitizer support for slub allocator 2015-05-04 14:03:56 -07:00
slab.h
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slab_common.c mm: slub: add kernel address sanitizer support for slub allocator 2015-05-04 14:03:56 -07:00
slob.c
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slub.c mm: slub: add kernel address sanitizer support for slub allocator 2015-05-04 14:03:56 -07:00
sparse-vmemmap.c
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sparse.c
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swap.c
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swap_state.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
swapfile.c swapfile: fix memory corruption via malformed swapfile 2019-07-27 21:42:14 +02:00
truncate.c
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util.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
vmalloc.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
vmpressure.c mm: vmpressure: fix sending wrong events on underflow 2019-07-27 21:43:56 +02:00
vmscan.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
vmstat.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
zbud.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
zpool.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
zsmalloc.c Import latest Samsung release 2017-04-18 03:43:52 +02:00
zswap.c Import latest Samsung release 2017-04-18 03:43:52 +02:00