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linux/mm
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Dan Carpenter 4b408c74ee mm/gup_benchmark.c: prevent integer overflow in ioctl 
The concern here is that "gup->size" is a u64 and "nr_pages" is unsigned
long.  On 32 bit systems we could trick the kernel into allocating fewer
pages than expected.

Link: http://lkml.kernel.org/r/20181025061546.hnhkv33diogf2uis@kili.mountain
Fixes: 64c349f4ae ("mm: add infrastructure for get_user_pages_fast() benchmarking")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-31 08:54:12 -07:00
..
kasan
mm/kasan/quarantine.c: make quarantine_lock a raw_spinlock_t
2018-10-26 16:38:15 -07:00
backing-dev.c
blkcg: delay blkg destruction until after writeback has finished
2018-08-31 14:48:56 -06:00
balloon_compaction.c
…
bootmem.c
docs/mm: bootmem: add overview documentation
2018-08-02 12:17:27 -06:00
cleancache.c
mm: use octal not symbolic permissions
2018-06-15 07:55:25 +09:00
cma_debug.c
mm/cma: remove unsupported gfp_mask parameter from cma_alloc()
2018-08-17 16:20:32 -07:00
cma.c
mm/cma: remove unsupported gfp_mask parameter from cma_alloc()
2018-08-17 16:20:32 -07:00
cma.h
…
compaction.c
psi: pressure stall information for CPU, memory, and IO
2018-10-26 16:26:32 -07:00
debug_page_ref.c
…
debug.c
mm: provide kernel parameter to allow disabling page init poisoning
2018-10-26 16:26:34 -07:00
dmapool.c
mm: use octal not symbolic permissions
2018-06-15 07:55:25 +09:00
early_ioremap.c
…
fadvise.c
vfs: implement readahead(2) using POSIX_FADV_WILLNEED
2018-08-30 20:01:32 +02:00
failslab.c
mm: use octal not symbolic permissions
2018-06-15 07:55:25 +09:00
filemap.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
frame_vector.c
…
frontswap.c
mm: use octal not symbolic permissions
2018-06-15 07:55:25 +09:00
gup_benchmark.c
mm/gup_benchmark.c: prevent integer overflow in ioctl
2018-10-31 08:54:12 -07:00
gup.c
mm/gup: cache dev_pagemap while pinning pages
2018-10-26 16:38:15 -07:00
highmem.c
…
hmm.c
mm/hmm: invalidate device page table at start of invalidation
2018-10-31 08:54:12 -07:00
huge_memory.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
hugetlb_cgroup.c
mm: rename page_counter's count/limit into usage/max
2018-06-07 17:34:35 -07:00
hugetlb.c
hugetlbfs: dirty pages as they are added to pagecache
2018-10-26 16:38:16 -07:00
hwpoison-inject.c
…
init-mm.c
mm: Allocate the mm_cpumask (mm->cpu_bitmap[]) dynamically based on nr_cpu_ids
2018-07-17 09:35:30 +02:00
internal.h
mm: Change return type int to vm_fault_t for fault handlers
2018-08-23 18:48:44 -07:00
interval_tree.c
…
Kconfig
radix tree: Remove multiorder support
2018-10-21 10:46:48 -04:00
Kconfig.debug
mm: clarify CONFIG_PAGE_POISONING and usage
2018-08-22 10:52:44 -07:00
khugepaged.c
mm: Convert khugepaged_scan_shmem to XArray
2018-10-21 10:46:38 -04:00
kmemleak-test.c
…
kmemleak.c
kmemleak: add module param to print warnings to dmesg
2018-10-26 16:25:19 -07:00
ksm.c
include/linux/compiler*.h: make compiler-*.h mutually exclusive
2018-08-22 17:31:34 -07:00
list_lru.c
mm/list_lru: introduce list_lru_shrink_walk_irq()
2018-08-17 16:20:32 -07:00
maccess.c
x86/fault: BUG() when uaccess helpers fault on kernel addresses
2018-09-03 15:12:09 +02:00
madvise.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
Makefile
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2018-10-22 17:30:06 +01:00
memblock.c
mm: provide kernel parameter to allow disabling page init poisoning
2018-10-26 16:26:34 -07:00
memcontrol.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
memfd.c
memfd: Convert memfd_tag_pins to XArray
2018-10-21 10:46:41 -04:00
memory_hotplug.c
mm/memory_hotplug.c: clean up node_states_check_changes_offline()
2018-10-26 16:26:33 -07:00
memory-failure.c
Merge tag 'libnvdimm-for-4.19_dax-memory-failure' of gitolite.kernel.org:pub/scm/linux/kernel/git/nvdimm/nvdimm
2018-08-25 18:43:59 -07:00
memory.c
mm/memory.c: recheck page table entry with page table lock held
2018-10-26 16:26:35 -07:00
mempolicy.c
mm/mempolicy.c: use match_string() helper to simplify the code
2018-10-26 16:26:33 -07:00
mempool.c
mm/mempool.c: add missing parameter description
2018-08-22 10:52:44 -07:00
memtest.c
…
migrate.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
mincore.c
xarray: Replace exceptional entries
2018-09-29 22:47:49 -04:00
mlock.c
dax: remove VM_MIXEDMAP for fsdax and device dax
2018-08-17 16:20:27 -07:00
mm_init.c
mm: access zone->node via zone_to_nid() and zone_set_nid()
2018-08-22 10:52:45 -07:00
mmap.c
mm: brk: downgrade mmap_sem to read when shrinking
2018-10-26 16:26:35 -07:00
mmu_context.c
…
mmu_gather.c
mm/memory: Move mmu_gather and TLB invalidation code into its own file
2018-09-07 15:19:25 +01:00
mmu_notifier.c
Revert "mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks"
2018-10-26 16:25:19 -07:00
mmzone.c
…
mprotect.c
x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings
2018-06-20 19:10:01 +02:00
mremap.c
mm: mremap: downgrade mmap_sem to read when shrinking
2018-10-26 16:26:35 -07:00
msync.c
…
nobootmem.c
mm/memblock: add a name for memblock flags enumeration
2018-08-02 12:17:27 -06:00
nommu.c
mm/gup: cache dev_pagemap while pinning pages
2018-10-26 16:38:15 -07:00
oom_kill.c
Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2018-10-24 11:22:39 +01:00
page_alloc.c
mm: return zero_resv_unavail optimization
2018-10-26 16:38:15 -07:00
page_counter.c
memcg: introduce memory.min
2018-06-07 17:34:36 -07:00
page_ext.c
mm/page_ext.c: constify lookup_page_ext() argument
2018-08-17 16:20:28 -07:00
page_idle.c
mm: use octal not symbolic permissions
2018-06-15 07:55:25 +09:00
page_io.c
mm: split SWP_FILE into SWP_ACTIVATED and SWP_FS
2018-10-26 16:38:15 -07:00
page_isolation.c
mm, migrate: remove reason argument from new_page_t
2018-04-11 10:28:32 -07:00
page_owner.c
mm: use octal not symbolic permissions
2018-06-15 07:55:25 +09:00
page_poison.c
mm/page_poison.c: make early_page_poison_param() __init
2018-04-05 21:36:26 -07:00
page_vma_mapped.c
mm/rmap: map_pte() was not handling private ZONE_DEVICE page properly
2018-10-31 08:54:11 -07:00
page-writeback.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
pagewalk.c
mm: kernel-doc: add missing parameter descriptions
2018-04-05 21:36:27 -07:00
percpu-internal.h
…
percpu-km.c
…
percpu-stats.c
treewide: Use array_size() in vmalloc()
2018-06-12 16:19:22 -07:00
percpu-vm.c
…
percpu.c
percpu: stop leaking bitmap metadata blocks
2018-10-07 14:50:12 -07:00
pgtable-generic.c
x86/mm: Page size aware flush_tlb_mm_range()
2018-10-09 16:51:11 +02:00
process_vm_access.c
…
quicklist.c
…
readahead.c
mm: Convert __do_page_cache_readahead to XArray
2018-10-21 10:46:37 -04:00
rmap.c
mm: migration: fix migration of huge PMD shared pages
2018-10-05 16:32:04 -07:00
rodata_test.c
…
shmem.c
shmem: Comment fixups
2018-10-21 10:46:41 -04:00
slab_common.c
mm, slab: shorten kmalloc cache names for large sizes
2018-10-26 16:26:32 -07:00
slab.c
mm, slab: combine kmalloc_caches and kmalloc_dma_caches
2018-10-26 16:26:31 -07:00
slab.h
mm: introduce CONFIG_MEMCG_KMEM as combination of CONFIG_MEMCG && !CONFIG_SLOB
2018-08-17 16:20:30 -07:00
slob.c
slab: __GFP_ZERO is incompatible with a constructor
2018-06-07 17:34:34 -07:00
slub.c
mm, slab: combine kmalloc_caches and kmalloc_dma_caches
2018-10-26 16:26:31 -07:00
sparse-vmemmap.c
mm/sparse: delete old sparse_init and enable new one
2018-08-17 16:20:32 -07:00
sparse.c
mm: provide kernel parameter to allow disabling page init poisoning
2018-10-26 16:26:34 -07:00
swap_cgroup.c
…
swap_slots.c
mm, swap, get_swap_pages: use entry_size instead of cluster in parameter
2018-08-22 10:52:44 -07:00
swap_state.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
swap.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
swapfile.c
mm: export add_swap_extent()
2018-10-26 16:38:15 -07:00
truncate.c
mm: Convert truncate to XArray
2018-10-21 10:46:37 -04:00
usercopy.c
usercopy: Allow boot cmdline disabling of hardening
2018-07-04 08:04:52 -07:00
userfaultfd.c
userfaultfd: prevent non-cooperative events vs mcopy_atomic races
2018-06-07 17:34:38 -07:00
util.c
kvfree(): fix misleading comment
2018-10-26 16:26:33 -07:00
vmacache.c
mm: get rid of vmacache_flush_all() entirely
2018-09-13 15:18:04 -10:00
vmalloc.c
vfree: add debug might_sleep()
2018-10-26 16:26:33 -07:00
vmpressure.c
mm/vmpressure.c: convert to use match_string() helper
2018-06-07 17:34:36 -07:00
vmscan.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
vmstat.c
mm/vmstat.c: assert that vmstat_text is in sync with stat_items_size
2018-10-26 16:26:35 -07:00
workingset.c
Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax
2018-10-28 11:35:40 -07:00
z3fold.c
z3fold: fix reclaim lock-ups
2018-05-11 17:28:45 -07:00
zbud.c
…
zpool.c
…
zsmalloc.c
mm/zsmalloc.c: fix fall-through annotation
2018-10-26 16:26:35 -07:00
zswap.c
zswap: re-check zswap_is_full() after do zswap_shrink()
2018-07-26 19:38:03 -07:00