Linus Torvalds 94ad374a07 Fix off-by-one error in iov_iter_advance() ... The iov_iter_advance() function would look at the iov->iov_len entry even though it might have iterated over the whole array, and iov was pointing past the end. This would cause DEBUG_PAGEALLOC to trigger a kernel page fault if the allocation was at the end of a page, and the next page was unallocated. The quick fix is to just change the order of the tests: check that there is any iovec data left before we check the iov entry itself. Thanks to Alexey Dobriyan for finding this case, and testing the fix. Reported-and-tested-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Nick Piggin <npiggin@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-07-30 14:50:18 -07:00
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allocpercpu.c	mm/allocpercpu.c: make 4 functions static	2008-07-26 12:00:12 -07:00
backing-dev.c	mm: bdi: fix race in bdi_class device creation	2008-05-20 13:31:53 -07:00
bootmem.c	bootmem: replace node_boot_start in struct bootmem_data	2008-07-24 10:47:20 -07:00
bounce.c	block: Initial support for data-less (or empty) barrier support	2007-10-16 11:03:56 +02:00
dmapool.c	dmapool: enable debugging for CONFIG_SLUB_DEBUG_ON too	2008-04-28 08:58:20 -07:00
fadvise.c	xip: support non-struct page backed memory	2008-04-28 08:58:23 -07:00
filemap.c	Fix off-by-one error in iov_iter_advance()	2008-07-30 14:50:18 -07:00
filemap_xip.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
fremap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
highmem.c	highmem: Export totalhigh_pages.	2008-07-19 22:39:46 -07:00
hugetlb.c	mm/hugetlb.c must #include <asm/io.h>	2008-07-28 16:30:21 -07:00
internal.h	mm: export prep_compound_page to mm	2008-07-24 10:47:17 -07:00
Kconfig	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
maccess.c	kgdb: fix optional arch functions and probe_kernel_*	2008-04-17 20:05:39 +02:00
madvise.c	madvise: update function comment of madvise_dontneed	2008-07-30 09:41:45 -07:00
Makefile	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
memcontrol.c	memcg: remove redundant check in move_task()	2008-07-30 09:41:44 -07:00
memory.c	GRU Driver: export is_uv_system(), zap_page_range() & follow_page()	2008-07-30 09:41:48 -07:00
memory_hotplug.c	memory-hotplug: add sysfs removable attribute for hotplug memory remove	2008-07-24 10:47:21 -07:00
mempolicy.c	hugetlb: modular state for hugetlb page size	2008-07-24 10:47:17 -07:00
mempool.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
migrate.c	mm: spinlock tree_lock	2008-07-26 12:00:06 -07:00
mincore.c	mm: remove nopage	2008-04-28 08:58:18 -07:00
mlock.c
mm_init.c	mm: create /sys/kernel/mm	2008-07-24 10:47:17 -07:00
mmap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mmu_notifier.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mmzone.c	mm: filter based on a nodemask as well as a gfp_mask	2008-04-28 08:58:19 -07:00
mprotect.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
mremap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
msync.c
nommu.c	tracehook: tracehook_expect_breakpoints	2008-07-26 12:00:09 -07:00
oom_kill.c	oom_kill: remove unused parameter in badness()	2008-04-28 08:58:26 -07:00
page-writeback.c	mm: spinlock tree_lock	2008-07-26 12:00:06 -07:00
page_alloc.c	mm: remove find_max_pfn_with_active_regions	2008-07-30 09:41:44 -07:00
page_io.c	mm: fix PageUptodate data race	2008-02-05 09:44:19 -08:00
page_isolation.c	memory hotremove: unset migrate type "ISOLATE" after removal	2007-11-14 18:45:38 -08:00
pagewalk.c	pagemap: pass mm into pagewalkers	2008-06-12 18:05:41 -07:00
pdflush.c	pdflush: use time_after() instead of open-coding it	2008-07-25 10:53:28 -07:00
prio_tree.c	spelling fixes: mm/	2007-10-20 01:27:18 +02:00
quicklist.c	quicklists: Only consider memory that can be used with GFP_KERNEL	2008-01-14 08:52:22 -08:00
readahead.c	mm: readahead scan lockless	2008-07-26 12:00:06 -07:00
rmap.c	mmu-notifiers: core	2008-07-28 16:30:21 -07:00
shmem.c	tmpfs: fix kernel BUG in shmem_delete_inode	2008-07-28 16:30:20 -07:00
shmem_acl.c	[PATCH] sanitize ->permission() prototype	2008-07-26 20:53:14 -04:00
slab.c	SL*B: drop kmem cache argument from constructor	2008-07-26 12:00:07 -07:00
slob.c	SL*B: drop kmem cache argument from constructor	2008-07-26 12:00:07 -07:00
slub.c	SL*B: drop kmem cache argument from constructor	2008-07-26 12:00:07 -07:00
sparse-vmemmap.c	Christoph has moved	2008-07-04 10:40:04 -07:00
sparse.c	make mm/sparse.c: make a function static	2008-07-26 12:00:12 -07:00
swap.c	swap: update function comment of release_pages	2008-07-30 09:41:46 -07:00
swap_state.c	mm: print swapcache page count in show_swap_cache_info()	2008-07-26 12:00:10 -07:00
swapfile.c	swapfile/vmscan: update comments related to vmscan functions	2008-07-30 09:41:46 -07:00
thrash.c
tiny-shmem.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6	2008-03-25 08:57:47 -07:00
truncate.c	mm: spinlock tree_lock	2008-07-26 12:00:06 -07:00
util.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2008-07-26 20:17:56 -07:00
vmalloc.c	Use WARN() in mm/vmalloc.c	2008-07-26 12:00:07 -07:00
vmscan.c	do_try_to_free_page: update comments related to vmscan functions	2008-07-30 09:41:46 -07:00
vmstat.c	mm/vmstat.c: proper externs	2008-07-24 10:47:14 -07:00