Robin Murphy 676bd99178 dmapool: fix overflow condition in pool_find_page() ...

If a DMA pool lies at the very top of the dma_addr_t range (as may
happen with an IOMMU involved), the calculated end address of the pool
wraps around to zero, and page lookup always fails.

Tweak the relevant calculation to be overflow-proof.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2015-10-01 21:42:35 -04:00

..

kasan

kasan: fix last shadow judgement in memory_is_poisoned_16()

2015-09-17 21:16:07 -07:00

backing-dev.c

Merge branch 'for-4.3/blkcg' of git://git.kernel.dk/linux-block

2015-09-10 18:56:14 -07:00

balloon_compaction.c

…

bootmem.c

bootmem: avoid freeing to bootmem after bootmem is done

2015-09-08 15:35:28 -07:00

cleancache.c

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cma_debug.c

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cma.c

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cma.h

…

compaction.c

mm/compaction: correct to flush migrated pages if pageblock skip happens

2015-09-08 15:35:28 -07:00

debug-pagealloc.c

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debug.c

mm: introduce idle page tracking

2015-09-10 13:29:01 -07:00

dmapool.c

dmapool: fix overflow condition in pool_find_page()

2015-10-01 21:42:35 -04:00

early_ioremap.c

mm/early_ioremap: add explicit #include of asm/early_ioremap.h

2015-09-11 15:21:34 -07:00

fadvise.c

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failslab.c

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filemap.c

mm: rename alloc_pages_exact_node() to __alloc_pages_node()

2015-09-08 15:35:28 -07:00

frame_vector.c

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frontswap.c

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gup.c

mm: make GUP handle pfn mapping unless FOLL_GET is requested

2015-09-04 16:54:41 -07:00

highmem.c

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huge_memory.c

mm: introduce idle page tracking

2015-09-10 13:29:01 -07:00

hugetlb_cgroup.c

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hugetlb.c

mm: hugetlbfs: skip shared VMAs when unmapping private pages to satisfy a fault

2015-10-01 21:42:35 -04:00

hwpoison-inject.c

hwpoison: use page_cgroup_ino for filtering by memcg

2015-09-10 13:29:01 -07:00

init-mm.c

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internal.h

mm/compaction: correct to flush migrated pages if pageblock skip happens

2015-09-08 15:35:28 -07:00

interval_tree.c

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Kconfig

Merge tag 'media/v4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2015-09-11 16:42:39 -07:00

Kconfig.debug

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kmemcheck.c

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kmemleak-test.c

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kmemleak.c

kmemleak: use seq_hex_dump() to dump buffers

2015-09-10 13:29:01 -07:00

ksm.c

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list_lru.c

list_lru: don't call list_lru_from_kmem if the list_head is empty

2015-09-08 15:35:28 -07:00

maccess.c

lib: move strncpy_from_unsafe() into mm/maccess.c

2015-08-31 12:36:10 -07:00

madvise.c

mm: madvise allow remove operation for hugetlbfs

2015-09-08 15:35:28 -07:00

Makefile

Merge tag 'media/v4.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2015-09-11 16:42:39 -07:00

memblock.c

mm/memblock.c: fix comment in __next_mem_range()

2015-09-08 15:35:28 -07:00

memcontrol.c

memcg: remove pcp_counter_lock

2015-10-01 21:42:35 -04:00

memory_hotplug.c

Merge tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2015-09-08 14:35:59 -07:00

memory-failure.c

hwpoison: use page_cgroup_ino for filtering by memcg

2015-09-10 13:29:01 -07:00

memory.c

mm: use vma_is_anonymous() in create_huge_pmd() and wp_huge_pmd()

2015-09-10 13:29:01 -07:00

mempolicy.c

mm: rename alloc_pages_exact_node() to __alloc_pages_node()

2015-09-08 15:35:28 -07:00

mempool.c

mm/mempool: allow NULL `pool' pointer in mempool_destroy()

2015-09-08 15:35:28 -07:00

memtest.c

memtest: remove unused header files

2015-09-08 15:35:28 -07:00

migrate.c

memcg: fix dirty page migration

2015-10-01 21:42:35 -04:00

mincore.c

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mlock.c

userfaultfd: teach vma_merge to merge across vma->vm_userfaultfd_ctx

2015-09-04 16:54:41 -07:00

mm_init.c

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mmap.c

mm, dax: VMA with vm_ops->pfn_mkwrite wants to be write-notified

2015-09-22 15:09:53 -07:00

mmu_context.c

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mmu_notifier.c

mmu-notifier: add clear_young callback

2015-09-10 13:29:01 -07:00

mmzone.c

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mprotect.c

userfaultfd: teach vma_merge to merge across vma->vm_userfaultfd_ctx

2015-09-04 16:54:41 -07:00

mremap.c

mremap: simplify the "overlap" check in mremap_to()

2015-09-04 16:54:41 -07:00

msync.c

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nobootmem.c

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nommu.c

mm, mpx: add "vm_flags_t vm_flags" arg to do_mmap_pgoff()

2015-09-10 13:29:01 -07:00

oom_kill.c

mm, oom: remove unnecessary variable

2015-09-08 15:35:28 -07:00

page_alloc.c

Merge branch 'akpm' (patches from Andrew)

2015-09-08 17:52:23 -07:00

page_counter.c

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page_ext.c

mm: introduce idle page tracking

2015-09-10 13:29:01 -07:00

page_idle.c

mm: introduce idle page tracking

2015-09-10 13:29:01 -07:00

page_io.c

…

page_isolation.c

mm, page_isolation: make set/unset_migratetype_isolate() file-local

2015-09-08 15:35:28 -07:00

page_owner.c

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page-writeback.c

Merge branch 'for-4.3/blkcg' of git://git.kernel.dk/linux-block

2015-09-10 18:56:14 -07:00

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_vm_access.c

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quicklist.c

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readahead.c

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rmap.c

mm: introduce idle page tracking

2015-09-10 13:29:01 -07:00

shmem.c

shmem: recalculate file inode when fstat

2015-09-08 15:35:28 -07:00

slab_common.c

memcg: export struct mem_cgroup

2015-09-08 15:35:28 -07:00

slab.c

mm/slab: fix unexpected index mapping result of kmalloc_size(INDEX_NODE+1)

2015-10-01 21:42:35 -04:00

slab.h

mm/slab.h: fix argument order in cache_from_obj's error message

2015-09-04 16:54:41 -07:00

slob.c

mm: rename alloc_pages_exact_node() to __alloc_pages_node()

2015-09-08 15:35:28 -07:00

slub.c

mm: rename alloc_pages_exact_node() to __alloc_pages_node()

2015-09-08 15:35:28 -07:00

sparse-vmemmap.c

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sparse.c

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swap_cgroup.c

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swap_state.c

mm: swap: zswap: maybe_preload & refactoring

2015-09-08 15:35:28 -07:00

swap.c

mm: introduce idle page tracking

2015-09-10 13:29:01 -07:00

swapfile.c

mm: /proc/pid/smaps:: show proportional swap share of the mapping

2015-09-08 15:35:28 -07:00

truncate.c

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userfaultfd.c

userfaultfd: avoid mmap_sem read recursion in mcopy_atomic

2015-09-04 16:54:41 -07:00

util.c

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vmacache.c

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vmalloc.c

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vmpressure.c

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vmscan.c

vmscan: fix sane_reclaim helper for legacy memcg

2015-09-22 15:09:53 -07:00

vmstat.c

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workingset.c

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zbud.c

mm: zbud: constify the zbud_ops

2015-09-08 15:35:28 -07:00

zpool.c

zpool: add zpool_has_pool()

2015-09-10 13:29:01 -07:00

zsmalloc.c

mm: zpool: constify the zpool_ops

2015-09-08 15:35:28 -07:00

zswap.c

zswap: change zpool/compressor at runtime

2015-09-10 13:29:01 -07:00