David Gibson c7546f8f03 [PATCH] Fix hugepage crash on failing mmap() ...

This patch fixes a crash in the hugepage code.  unmap_hugepage_area() was
assuming that (due to prefault) PTEs must exist for all the area in
question.  However, this may not be the case, if mmap() encounters an error
before the prefault and calls unmap_region() to clean up any partial
mapping.

Depending on the hugepage configuration, this crash can be triggered by an
unpriveleged user.

Signed-off-by: David Gibson <[email protected]>
Cc: William Lee Irwin III <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2005-08-05 12:22:37 -07:00

..

bootmem.c

[PATCH] Use ALIGN to remove duplicate code

2005-06-25 16:25:02 -07:00

fadvise.c

[PATCH] xip: madvice/fadvice: execute in place

2005-06-24 00:06:42 -07:00

filemap_xip.c

[PATCH] execute-in-place fixes

2005-07-15 09:54:50 -07:00

filemap.c

[PATCH] fix for generic_file_write iov problem

2005-06-25 16:24:39 -07:00

filemap.h

[PATCH] xip: reduce code duplication

2005-06-24 00:06:41 -07:00

fremap.c

…

highmem.c

…

hugetlb.c

[PATCH] Fix hugepage crash on failing mmap()

2005-08-05 12:22:37 -07:00

internal.h

…

Kconfig

[PATCH] sparsemem memory model

2005-06-23 09:45:04 -07:00

madvise.c

[PATCH] madvise() does not always return -EBADF on non-file mapped area

2005-07-27 16:25:54 -07:00

Makefile

[PATCH] xip: fs/mm: execute in place

2005-06-24 00:06:41 -07:00

memory.c

Fix up recent get_user_pages() handling

2005-08-03 10:07:09 -07:00

mempolicy.c

[PATCH] sys_set_mempolicy() doesnt check if mode < 0

2005-08-01 21:38:00 -07:00

mempool.c

[PATCH] propagate __nocast annotations

2005-07-07 18:23:46 -07:00

mincore.c

…

mlock.c

…

mmap.c

[PATCH] __vm_enough_memory() signedness fix

2005-08-04 21:43:14 -07:00

mprotect.c

…

mremap.c

[PATCH] fix VmSize and VmData after mremap

2005-08-04 13:11:15 -07:00

msync.c

…

nommu.c

[PATCH] __vm_enough_memory() signedness fix

2005-08-04 21:43:14 -07:00

oom_kill.c

[PATCH] mm: quieten OOM killer noise

2005-07-07 18:23:36 -07:00

page_alloc.c

[PATCH] Fix NUMA node sizing in nr_free_zone_pages

2005-07-30 10:14:46 -07:00

page_io.c

[PATCH] swsusp: kill config_pm_disk

2005-06-25 16:24:32 -07:00

page-writeback.c

[PATCH] rename wakeup_bdflush to wakeup_pdflush

2005-06-28 21:20:31 -07:00

pdflush.c

[PATCH] Cleanup patch for process freezing

2005-06-25 17:10:13 -07:00

prio_tree.c

…

readahead.c

…

rmap.c

[PATCH] xip: fs/mm: execute in place

2005-06-24 00:06:41 -07:00

shmem.c

…

slab.c

[PATCH] propagate __nocast annotations

2005-07-07 18:23:46 -07:00

sparse.c

[PATCH] sparsemem hotplug base

2005-06-23 09:45:05 -07:00

swap_state.c

…

swap.c

…

swapfile.c

…

thrash.c

…

tiny-shmem.c

…

truncate.c

…

vmalloc.c

…

vmscan.c

[PATCH] rename wakeup_bdflush to wakeup_pdflush

2005-06-28 21:20:31 -07:00