zhong jiang 371bc88016 mm/memory_hotplug.c: fix overflow in test_pages_in_a_zone() ...

[ Upstream commit d6d8c8a482 ]

When mainline introduced commit a96dfddbcc ("base/memory, hotplug: fix
a kernel oops in show_valid_zones()"), it obtained the valid start and
end pfn from the given pfn range.  The valid start pfn can fix the
actual issue, but it introduced another issue.  The valid end pfn will
may exceed the given end_pfn.

Although the incorrect overflow will not result in actual problem at
present, but I think it need to be fixed.

[toshi.kani@hpe.com: remove assumption that end_pfn is aligned by MAX_ORDER_NR_PAGES]
Fixes: a96dfddbcc ("base/memory, hotplug: fix a kernel oops in show_valid_zones()")
Link: http://lkml.kernel.org/r/1486467299-22648-1-git-send-email-zhongjiang@huawei.com
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-05-15 09:12:04 +09:00

..

kasan

kasan: fix shadow_size calculation error in kasan_module_alloc

2023-05-12 17:06:05 +09:00

backing-dev.c

block: fix double-free in the failure path of cgwb_bdi_init()

2017-02-26 11:10:52 +01:00

balloon_compaction.c

…

bootmem.c

…

cleancache.c

…

cma_debug.c

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cma.c

Amlogic: sync the code from mainline. [1/1]

2020-02-04 13:48:58 +09:00

cma.h

codec_mm: add reserved & cma support for 4.9. [1/1]

2018-11-05 05:36:36 -07:00

compaction.c

Amlogic: sync the code from mainline. [1/1]

2020-02-04 13:48:58 +09:00

debug_page_ref.c

…

debug.c

mm: get rid of vmacache_flush_all() entirely

2023-05-15 08:15:04 +09:00

dmapool.c

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early_ioremap.c

mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep

2018-02-25 11:05:49 +01:00

fadvise.c

mm/fadvise.c: fix signed overflow UBSAN complaint

2023-05-12 17:25:57 +09:00

failslab.c

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filemap.c

Merge 4.9.96 into android-4.9

2018-04-24 11:26:46 +02:00

frame_vector.c

mm: fail get_vaddr_frames() for filesystem-dax mappings

2018-02-28 10:18:34 +01:00

frontswap.c

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gup.c

proc: do not access cmdline nor environ from file-backed areas

2018-05-19 10:27:00 +02:00

highmem.c

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huge_memory.c

Fixes: Commit 2aa6d036b7 ("mm: numa: avoid waiting on freed migrated pages")

2023-05-12 17:27:18 +09:00

hugetlb_cgroup.c

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hugetlb.c

mm: hugetlb: yield when prepping struct pages

2018-07-11 16:26:43 +02:00

hwpoison-inject.c

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init-mm.c

mm: Add a user_ns owner to mm_struct and fix ptrace permission checks

2017-01-06 10:40:13 +01:00

internal.h

mm: use is_migrate_highatomic() to simplify the code

2020-12-17 17:23:23 +09:00

interval_tree.c

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Kconfig

mm: don't allow deferred pages with NEED_PER_CPU_KM

2018-05-22 16:57:57 +02:00

Kconfig.debug

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khugepaged.c

mm, thp: do not cause memcg oom for thp

2018-05-30 07:50:38 +02:00

kmemcheck.c

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kmemleak-test.c

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kmemleak.c

kmemleak: system would panic after enabling kmemleak [1/1]

2020-12-17 17:23:23 +09:00

ksm.c

Amlogic: sync the code from mainline. [1/1]

2020-02-04 13:48:58 +09:00

list_lru.c

mm/list_lru.c: fix list_lru_count_node() to be race free

2017-07-21 07:42:21 +02:00

maccess.c

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madvise.c

mm: madvise(MADV_DODUMP): allow hugetlbfs pages

2023-05-15 08:33:50 +09:00

Makefile

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memblock.c

mm/memblock.c: reversed logic in memblock_discard()

2017-08-30 10:21:47 +02:00

memcontrol.c

memcg: remove memcg_cgroup::id from IDR on mem_cgroup_css_alloc() failure

2023-05-12 17:14:41 +09:00

memory_hotplug.c

mm/memory_hotplug.c: fix overflow in test_pages_in_a_zone()

2023-05-15 09:12:04 +09:00

memory-failure.c

mm: hwpoison: call shake_page() after try_to_unmap() for mlocked page

2018-03-24 11:00:21 +01:00

memory.c

mm/tlb: Remove tlb_remove_table() non-concurrent condition

2023-05-12 17:24:10 +09:00

mempolicy.c

Merge 4.9.104 into android-4.9

2018-05-30 13:19:56 +02:00

mempool.c

…

memtest.c

…

migrate.c

Amlogic: sync the code from mainline. [1/1]

2020-02-04 13:48:58 +09:00

mincore.c

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mlock.c

Merge 4.9.31 into android-4.9

2017-06-07 12:37:47 +02:00

mm_init.c

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mmap.c

Merge 4.9.108 into android-4.9

2018-06-13 16:37:10 +02:00

mmu_context.c

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mmu_notifier.c

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mmzone.c

mm: optimize for lowmemory killer

2018-04-17 17:58:08 -08:00

mprotect.c

x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings

2023-05-12 16:53:04 +09:00

mremap.c

mremap: properly flush TLB before releasing the page (CVE-2018-18281)

2020-12-17 17:23:22 +09:00

msync.c

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nobootmem.c

mm: discard memblock data later

2017-08-24 17:12:19 -07:00

nommu.c

ptrace: Don't allow accessing an undumpable mm

2017-01-06 10:40:13 +01:00

oom_kill.c

mm, oom_reaper: gather each vma to prevent leaking TLB entry

2017-12-09 22:01:47 +01:00

page_alloc.c

mm, page_alloc: fallback to smallest page when not stealing whole pageblock

2020-12-17 17:23:23 +09:00

page_counter.c

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page_ext.c

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page_idle.c

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page_io.c

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page_isolation.c

mm: optimize for CMA allocate time

2018-03-05 15:34:36 +08:00

page_owner.c

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page_poison.c

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page-writeback.c

writeback: safer lock nesting

2018-04-24 09:34:18 +02:00

pagewalk.c

mm/pagewalk.c: report holes in hugetlb ranges

2017-11-24 08:33:42 +01:00

percpu-km.c

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percpu-vm.c

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percpu.c

percpu: include linux/sched.h for cond_resched()

2018-05-09 09:50:18 +02:00

pgtable-generic.c

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process_vm_access.c

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quicklist.c

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readahead.c

Merge branch 'android-4.9' into amlogic-4.9-dev

2018-04-24 17:43:19 +08:00

rmap.c

mm, mprotect: flush TLB if potentially racing with a parallel reclaim leaving stale TLB entries

2017-08-11 08:49:29 -07:00

shmem.c

mm: shmem.c: Correctly annotate new inodes for lockdep

2023-05-15 08:25:04 +09:00

slab_common.c

Amlogic: sync the code from mainline. [1/1]

2020-02-04 13:48:58 +09:00

slab.c

mm, slab: reschedule cache_reap() on the same CPU

2018-04-24 09:34:09 +02:00

slab.h

slub: move synchronize_sched out of slab_mutex on shrink

2017-03-22 12:43:38 +01:00

slob.c

slub: move synchronize_sched out of slab_mutex on shrink

2017-03-22 12:43:38 +01:00

slub.c

slub: make ->cpu_partial unsigned int

2023-05-15 08:29:33 +09:00

sparse-vmemmap.c

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sparse.c

mm/memory_hotplug: set magic number to page->freelist instead of page->lru.next

2017-10-21 17:21:36 +02:00

swap_cgroup.c

mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()

2017-07-05 14:40:17 +02:00

swap_state.c

Amlogic: sync the code from mainline. [1/1]

2020-02-04 13:48:58 +09:00

swap.c

mm: optimize for lowmemory killer

2018-04-17 17:58:08 -08:00

swapfile.c

x86/speculation/l1tf: Limit swap file size to MAX_PA/2

2023-05-12 16:53:07 +09:00

truncate.c

fs: add i_blocksize()

2017-06-14 15:06:00 +02:00

usercopy.c

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userfaultfd.c

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util.c

Provide a function to create a NUL-terminated string from unterminated data

2018-02-25 11:05:41 +01:00

vmacache.c

Amlogic: sync the code from mainline. [1/1]

2020-02-04 13:48:58 +09:00

vmalloc.c

mm: vmalloc: avoid racy handling of debugobjects in vunmap

2023-05-12 16:39:28 +09:00

vmpressure.c

mm: vmpressure: fix sending wrong events on underflow

2017-03-12 06:41:43 +01:00

vmscan.c

mm: remove seemingly spurious reclaimability check from laptop_mode gating

2023-05-15 08:11:03 +09:00

vmstat.c

mm/vmstat.c: fix outdated vmstat_text

2023-05-15 09:01:33 +09:00

workingset.c

mm: workingset: fix premature shadow node shrinking with cgroups

2017-04-08 09:30:36 +02:00

z3fold.c

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zbud.c

…

zpool.c

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zsmalloc.c

zsmalloc: calling zs_map_object() from irq is a bug

2017-12-14 09:28:23 +01:00

zswap.c

zswap: re-check zswap_is_full() after do zswap_shrink()

2023-05-12 17:14:18 +09:00