David Gibson cb07c9a186 [PATCH] hugetlb: check for brk() entering a hugepage region ...

Unlike mmap(), the codepath for brk() creates a vma without first checking
that it doesn't touch a region exclusively reserved for hugepages.  On
powerpc, this can allow it to create a normal page vma in a hugepage
region, causing oopses and other badness.

Add a test to prevent this.  With this patch, brk() will simply fail if it
attempts to move the break into a hugepage reserved region.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Cc: Adam Litke <agl@us.ibm.com>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-11-14 09:09:27 -08:00

..

allocpercpu.c

[PATCH] Extract the allocpercpu functions from the slab allocator

2006-09-26 08:48:51 -07:00

backing-dev.c

[PATCH] separate bdi congestion functions from queue congestion functions

2006-10-20 10:26:35 -07:00

bootmem.c

[PATCH] bootmem: use MAX_DMA_ADDRESS instead of LOW32LIMIT

2006-09-26 08:48:49 -07:00

bounce.c

[PATCH] BLOCK: Separate the bounce buffering code from the highmem code [try #6]

2006-09-30 20:32:11 +02:00

fadvise.c

[PATCH] fadvise() make POSIX_FADV_NOREUSE a no-op

2006-08-06 08:57:47 -07:00

filemap_xip.c

[PATCH] mark address_space_operations const

2006-06-28 14:59:04 -07:00

filemap.c

[PATCH] mm: clean up pagecache allocation

2006-10-28 11:30:50 -07:00

filemap.h

Remove all inclusions of <linux/config.h>

2006-10-04 03:38:54 -04:00

fremap.c

[PATCH] paravirt: pte clear not present

2006-10-01 00:39:33 -07:00

highmem.c

[PATCH] BLOCK: Separate the bounce buffering code from the highmem code [try #6]

2006-09-30 20:32:11 +02:00

hugetlb.c

[PATCH] hugetlb: fix absurd HugePages_Rsvd

2006-10-28 11:30:53 -07:00

internal.h

[PATCH] mm: VM_BUG_ON

2006-09-26 08:48:44 -07:00

Kconfig

Fix "can not" in Documentation and Kconfig

2006-10-03 22:53:09 +02:00

madvise.c

[PATCH] Fix MADV_REMOVE protection checking

2006-04-17 18:22:18 -07:00

Makefile

[PATCH] separate bdi congestion functions from queue congestion functions

2006-10-20 10:26:35 -07:00

memory_hotplug.c

[PATCH] hot-add-mem x86_64: use CONFIG_MEMORY_HOTPLUG_RESERVE

2006-10-01 00:39:18 -07:00

memory.c

[PATCH] mm: D-cache aliasing issue in cow_user_page

2006-10-20 10:26:43 -07:00

mempolicy.c

[PATCH] Fix do_mbind warning with CONFIG_MIGRATION=n

2006-10-11 11:14:19 -07:00

mempool.c

[PATCH] dm: work around mempool_alloc, bio_alloc_bioset deadlocks

2006-09-01 11:39:09 -07:00

migrate.c

[PATCH] Fix sys_move_pages when a NULL node list is passed

2006-11-03 12:27:59 -08:00

mincore.c

[PATCH] freepgt: sys_mincore ignore FIRST_USER_PGD_NR

2005-04-19 13:29:20 -07:00

mlock.c

[PATCH] move capable() to capability.h

2006-01-11 18:42:13 -08:00

mmap.c

[PATCH] hugetlb: check for brk() entering a hugepage region

2006-11-14 09:09:27 -08:00

mmzone.c

[PATCH] mm/mmzone.c: EXPORT_UNUSED_SYMBOL

2006-07-10 13:24:17 -07:00

mprotect.c

[PATCH] paravirt: lazy mmu mode hooks.patch

2006-10-01 00:39:33 -07:00

mremap.c

[PATCH] paravirt: lazy mmu mode hooks.patch

2006-10-01 00:39:33 -07:00

msync.c

[PATCH] mm: msync() cleanup

2006-09-26 08:48:45 -07:00

nommu.c

Spelling fix: "control" instead of "cotrol"

2006-10-03 23:21:02 +02:00

oom_kill.c

[PATCH] OOM killer meets userspace headers

2006-10-20 10:26:38 -07:00

page_alloc.c

[PATCH] mm: un-needed add-store operation wastes a few bytes

2006-11-03 12:27:56 -08:00

page_io.c

[PATCH] swsusp: read speedup

2006-09-26 08:48:58 -07:00

page-writeback.c

[PATCH] separate bdi congestion functions from queue congestion functions

2006-10-20 10:26:35 -07:00

pdflush.c

[PATCH] pdflush: handle resume wakeups

2006-06-25 10:01:06 -07:00

prio_tree.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

readahead.c

[PATCH] Cleanup read_pages()

2006-11-03 12:27:56 -08:00

rmap.c

[PATCH] mm: more commenting on lock ordering

2006-10-20 10:26:44 -07:00

shmem_acl.c

[PATCH] Fix typos in mm/shmem_acl.c

2006-10-11 11:14:23 -07:00

shmem.c

[PATCH] separate bdi congestion functions from queue congestion functions

2006-10-20 10:26:35 -07:00

slab.c

[PATCH] init_reap_node() initialization fix

2006-11-03 12:27:58 -08:00

slob.c

[PATCH] Make kmem_cache_destroy() return void

2006-09-27 08:26:11 -07:00

sparse.c

[PATCH] memory hotplug: __GFP_NOWARN is better for __kmalloc_section_memmap()

2006-10-28 11:30:52 -07:00

swap_state.c

[PATCH] lockdep: locking init debugging improvement

2006-07-03 15:27:02 -07:00

swap.c

[PATCH] mm/: make functions static

2006-09-26 08:48:45 -07:00

swapfile.c

[PATCH] valid_swaphandles() fix

2006-09-29 09:18:23 -07:00

thrash.c

[PATCH] temporarily disable swap token on memory pressure

2005-11-28 14:42:25 -08:00

tiny-shmem.c

[PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree

2006-06-26 12:25:08 -07:00

truncate.c

[PATCH] invalidate: remove_mapping() fix

2006-10-17 08:18:43 -07:00

util.c

[PATCH] slab: clean up leak tracking ifdefs a little bit

2006-10-04 07:55:13 -07:00

vmalloc.c

[PATCH] vmalloc: optimization, cleanup, bugfixes

2006-11-13 07:40:42 -08:00

vmscan.c

[PATCH] Use min of two prio settings in calculating distress for reclaim

2006-10-28 11:30:51 -07:00

vmstat.c

[PATCH] vmscan: Fix temp_priority race

2006-10-28 11:30:50 -07:00