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Christoph Lameter ef8b4520bd Slab allocators: fail if ksize is called with a NULL parameter 
A NULL pointer means that the object was not allocated.  One cannot
determine the size of an object that has not been allocated.  Currently we
return 0 but we really should BUG() on attempts to determine the size of
something nonexistent.

krealloc() interprets NULL to mean a zero sized object.  Handle that
separately in krealloc().

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:42:53 -07:00
..
allocpercpu.c Slab allocators: Replace explicit zeroing with __GFP_ZERO 2007-07-17 10:23:02 -07:00
backing-dev.c remove mm/backing-dev.c:congestion_wait_interruptible() 2007-07-16 09:05:52 -07:00
bootmem.c
bounce.c Drop 'size' argument from bio_endio and bi_end_io 2007-10-10 09:25:57 +02:00
fadvise.c
filemap_xip.c mm: fault feedback #2 2007-07-19 10:04:41 -07:00
filemap.c mm: improve find_lock_page 2007-10-16 09:42:53 -07:00
filemap.h
fremap.c fix VM_CAN_NONLINEAR check in sys_remap_file_pages 2007-10-08 12:58:14 -07:00
highmem.c Create the ZONE_MOVABLE zone 2007-07-17 10:22:59 -07:00
hugetlb.c hugetlb: fix clear_user_highpage arguments 2007-10-01 07:52:23 -07:00
internal.h
Kconfig vmemmap: generify initialisation via helpers 2007-10-16 09:42:51 -07:00
madvise.c speed up madvise_need_mmap_write() usage 2007-07-16 09:05:36 -07:00
Makefile Generic Virtual Memmap support for SPARSEMEM 2007-10-16 09:42:51 -07:00
memory_hotplug.c
memory.c calculation of pgoff in do_linear_fault() uses mixed units 2007-10-16 09:42:53 -07:00
mempolicy.c Clean up duplicate includes in mm/ 2007-10-16 09:42:52 -07:00
mempool.c Slab allocators: Replace explicit zeroing with __GFP_ZERO 2007-07-17 10:23:02 -07:00
migrate.c mm/migrate.c __user annotation 2007-10-14 12:41:51 -07:00
mincore.c
mlock.c do not limit locked memory when RLIMIT_MEMLOCK is RLIM_INFINITY 2007-07-16 09:05:37 -07:00
mmap.c fix NULL pointer dereference in __vm_enough_memory() 2007-08-22 19:52:45 -07:00
mmzone.c
mprotect.c mm: variable length argument support 2007-07-19 10:04:45 -07:00
mremap.c mm: variable length argument support 2007-07-19 10:04:45 -07:00
msync.c
nommu.c fix NULL pointer dereference in __vm_enough_memory() 2007-08-22 19:52:45 -07:00
oom_kill.c oom: print points as unsigned long 2007-07-31 15:39:36 -07:00
page_alloc.c process_zones(): fix recovery code 2007-08-31 01:42:22 -07:00
page_io.c Drop 'size' argument from bio_endio and bi_end_io 2007-10-10 09:25:57 +02:00
page-writeback.c mm: use lockless radix-tree probe 2007-10-16 09:42:53 -07:00
pdflush.c Freezer: make kernel threads nonfreezable by default 2007-07-17 10:23:02 -07:00
prio_tree.c
quicklist.c
readahead.c mm: use lockless radix-tree probe 2007-10-16 09:42:53 -07:00
rmap.c mm: Remove slab destructors from kmem_cache_create(). 2007-07-20 10:11:58 +09:00
shmem_acl.c
shmem.c Clean up duplicate includes in mm/ 2007-10-16 09:42:52 -07:00
slab.c Slab allocators: fail if ksize is called with a NULL parameter 2007-10-16 09:42:53 -07:00
slob.c Slab allocators: fail if ksize is called with a NULL parameter 2007-10-16 09:42:53 -07:00
slub.c Slab allocators: fail if ksize is called with a NULL parameter 2007-10-16 09:42:53 -07:00
sparse-vmemmap.c vmemmap: generify initialisation via helpers 2007-10-16 09:42:51 -07:00
sparse.c Generic Virtual Memmap support for SPARSEMEM 2007-10-16 09:42:51 -07:00
swap_state.c mm: clarify __add_to_swap_cache locking 2007-10-16 09:42:53 -07:00
swap.c Clean up duplicate includes in mm/ 2007-10-16 09:42:52 -07:00
swapfile.c Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION 2007-07-29 16:45:38 -07:00
thrash.c
tiny-shmem.c
truncate.c mm: merge populate and nopage into fault (fixes nonlinear) 2007-07-19 10:04:41 -07:00
util.c Slab allocators: fail if ksize is called with a NULL parameter 2007-10-16 09:42:53 -07:00
vmalloc.c lguest: export symbols for lguest as a module 2007-07-19 10:04:52 -07:00
vmscan.c synchronous lumpy reclaim: wait for page writeback when directly reclaiming contiguous areas 2007-08-22 19:52:45 -07:00
vmstat.c Remove fs.h from mm.h 2007-07-29 17:09:29 -07:00