Vitaly Kuznetsov 62bef58a55 lib/string_helpers.c: fix infinite loop in string_get_size() ... Some string_get_size() calls (e.g.: string_get_size(1, 512, STRING_UNITS_10, ..., ...) string_get_size(15, 64, STRING_UNITS_10, ..., ...) ) result in an infinite loop. The problem is that if size is equal to divisor[units]/blk_size and is smaller than divisor[units] we'll end up with size == 0 when we start doing sf_cap calculations: For string_get_size(1, 512, STRING_UNITS_10, ..., ...) case: ... remainder = do_div(size, divisor[units]); -> size is 0, remainder is 1 remainder *= blk_size; -> remainder is 512 ... size *= blk_size; -> size is still 0 size += remainder / divisor[units]; -> size is still 0 The caller causing the issue is sd_read_capacity(), the problem was noticed on Hyper-V, such weird size was reported by host when scanning collides with device removal. This is probably a separate issue worth fixing, this patch is intended to prevent the library routine from infinite looping. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: James Bottomley <JBottomley@Odin.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2015-09-17 21:16:07 -07:00
..
842	lib: correct 842 decompress for 32 bit	2015-05-13 10:31:59 +08:00
fonts	…
lz4	lz4: fix system halt at boot kernel on x86_64	2015-05-24 11:56:29 -07:00
lzo	…
mpi	MPI: Fix mpi_read_buffer	2015-08-25 21:13:16 +08:00
raid6	md/raid6: delta syndrome for ARM NEON	2015-08-31 19:29:05 +02:00
reed_solomon	…
xz	…
zlib_deflate	zlib_deflate/deftree: remove bi_reverse()	2015-09-10 13:29:01 -07:00
zlib_inflate	…
.gitignore	…
Kconfig	libnvdimm for 4.3:	2015-09-08 14:35:59 -07:00
Kconfig.debug	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-09-03 15:46:07 -07:00
Kconfig.kasan	x86/kasan: Move KASAN_SHADOW_OFFSET to the arch Kconfig	2015-07-06 14:53:15 +02:00
Kconfig.kgdb	…
Kconfig.kmemcheck	…
Makefile	Merge branch 'nmi' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2015-09-08 12:28:10 -07:00
argv_split.c	…
asn1_decoder.c	ASN.1: Handle 'ANY OPTIONAL' in grammar	2015-08-05 13:38:07 +01:00
assoc_array.c	…
atomic64.c	atomic: Provide atomic_{or,xor,and}	2015-07-27 14:06:24 +02:00
atomic64_test.c	atomic: Add simple atomic_t tests	2015-07-27 14:06:24 +02:00
audit.c	…
bcd.c	…
bch.c	…
bitmap.c	lib/bitmap.c: bitmap_parselist can accept string with whitespaces on head or tail	2015-09-10 13:29:01 -07:00
bitrev.c	…
bsearch.c	…
btree.c	…
bug.c	module: Sanitize RCU usage and locking	2015-05-28 11:31:52 +09:30
build_OID_registry	…
bust_spinlocks.c	…
check_signature.c	…
checksum.c	…
clz_ctz.c	…
clz_tab.c	…
cmdline.c	…
compat_audit.c	…
cordic.c	…
cpu-notifier-error-inject.c	…
cpu_rmap.c	sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()	2015-05-27 15:22:15 +02:00
cpumask.c	revert "cpumask: don't perform while loop in cpumask_next_and()"	2015-06-18 17:00:23 -10:00
crc-ccitt.c	…
crc-itu-t.c	lib: crc-itu-t.[ch] fix 0x0x prefix in integer constants	2015-05-26 15:26:43 +02:00
crc-t10dif.c	lib: introduce crc_t10dif_update()	2015-05-30 22:42:24 -07:00
crc7.c	…
crc8.c	…
crc16.c	…
crc32.c	…
crc32defs.h	…
ctype.c	…
debug_info.c	kbuild: include core debug info when DEBUG_INFO_REDUCED	2015-06-11 15:08:32 +02:00
debug_locks.c	…
debugobjects.c	…
dec_and_lock.c	…
decompress.c	lib/decompress: set the compressor name to NULL on error	2015-07-17 16:39:54 -07:00
decompress_bunzip2.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
decompress_inflate.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
decompress_unlz4.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
decompress_unlzma.c	lib/decompress_unlzma: Do a NULL check for pointer	2015-09-10 13:29:01 -07:00
decompress_unlzo.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
decompress_unxz.c	lib/decompressors: use real out buf size for gunzip with kernel	2015-09-10 13:29:01 -07:00
devres.c	cleanup IORESOURCE_CACHEABLE vs ioremap()	2015-08-10 23:07:06 -04:00
digsig.c	…
div64.c	…
dma-debug.c	dma-debug: skip debug_dma_assert_idle() when disabled	2015-07-17 16:39:53 -07:00
dump_stack.c	…
dynamic_debug.c	module: add extra argument for parse_params() callback	2015-05-20 00:25:24 -07:00
dynamic_queue_limits.c	…
earlycpio.c	…
extable.c	…
fault-inject.c	…
fdt.c	…
fdt_empty_tree.c	…
fdt_ro.c	…
fdt_rw.c	…
fdt_strerror.c	…
fdt_sw.c	…
fdt_wip.c	…
find_bit.c	lib: rename lib/find_next_bit.c to lib/find_bit.c	2015-04-17 09:03:54 -04:00
flex_array.c	…
flex_proportions.c	…
gcd.c	…
gen_crc32table.c	…
genalloc.c	genalloc: add support of multiple gen_pools per device	2015-09-04 16:54:41 -07:00
glob.c	…
halfmd4.c	…
hexdump.c	hexdump: fix for non-aligned buffers	2015-07-17 16:39:53 -07:00
hweight.c	…
idr.c	…
inflate.c	…
int_sqrt.c	…
interval_tree.c	…
interval_tree_test.c	…
iomap.c	…
iomap_copy.c	…
iommu-common.c	lib/iommu-common.c: do not use 0xffffffffffffffffl for computing align_mask	2015-08-07 04:39:41 +03:00
iommu-helper.c	…
ioremap.c	x86, mm: support huge KVA mappings on x86	2015-04-14 16:49:04 -07:00
iov_iter.c	Merge branch 'iov_iter' into for-next	2015-04-11 22:26:51 -04:00
irq_regs.c	…
is_single_threaded.c	…
jedec_ddr_data.c	…
kasprintf.c	…
kfifo.c	…
klist.c	klist: implement klist_prev()	2015-07-28 08:50:42 +01:00
kobject.c	include, lib: add __printf attributes to several function prototypes	2015-07-17 16:39:53 -07:00
kobject_uevent.c	…
kstrtox.c	kstrto*: accept "-0" for signed conversion	2015-09-10 13:29:01 -07:00
kstrtox.h	…
lcm.c	…
libcrc32c.c	…
list_debug.c	…
list_sort.c	lib/list_sort: use late_initcall to hook in self tests	2015-06-16 14:12:35 -04:00
llist.c	…
locking-selftest-hardirq.h	…
locking-selftest-mutex.h	…
locking-selftest-rlock-hardirq.h	…
locking-selftest-rlock-softirq.h	…
locking-selftest-rlock.h	…
locking-selftest-rsem.h	…
locking-selftest-softirq.h	…
locking-selftest-spin-hardirq.h	…
locking-selftest-spin-softirq.h	…
locking-selftest-spin.h	…
locking-selftest-wlock-hardirq.h	…
locking-selftest-wlock-softirq.h	…
locking-selftest-wlock.h	…
locking-selftest-wsem.h	…
locking-selftest.c	…
lockref.c	locking/lockref: Remove homebrew cmpxchg64_relaxed() macro definition	2015-08-12 11:59:04 +02:00
lru_cache.c	lru_cache: remove use of seq_printf return value	2015-04-15 16:35:25 -07:00
md5.c	…
memory-notifier-error-inject.c	…
memweight.c	…
net_utils.c	…
nlattr.c	…
nmi_backtrace.c	nmi: create generic NMI backtrace implementation	2015-07-17 12:23:17 +01:00
notifier-error-inject.c	…
notifier-error-inject.h	…
of-reconfig-notifier-error-inject.c	…
oid_registry.c	…
parser.c	…
pci_iomap.c	libnvdimm for 4.3:	2015-09-08 14:35:59 -07:00
percpu-refcount.c	…
percpu_counter.c	percpu_counter: batch size aware __percpu_counter_compare()	2015-05-29 07:39:34 +10:00
percpu_ida.c	…
percpu_test.c	…
plist.c	…
pm-notifier-error-inject.c	…
proportions.c	…
radix-tree.c	radix-tree: replace preallocated node array with linked list	2015-06-25 17:00:40 -07:00
random32.c	…
ratelimit.c	…
rational.c	…
rbtree.c	rbtree: Make lockless searches non-fatal	2015-05-28 11:32:04 +09:30
rbtree_test.c	…
reciprocal_div.c	…
rhashtable.c	rhashtable: fix for resize events during table walk	2015-07-08 14:53:49 -07:00
scatterlist.c	scatterlist: allow limited chaining without ARCH_HAS_SG_CHAIN	2015-08-17 08:12:51 -06:00
seq_buf.c	…
sg_split.c	lib: scatterlist: add sg splitting function	2015-08-24 14:28:01 -06:00
sha1.c	…
show_mem.c	lib/show_mem.c: correct reserved memory calculation	2015-09-08 15:35:28 -07:00
smp_processor_id.c	…
sort.c	lib/sort: Add 64 bit swap function	2015-06-25 17:00:40 -07:00
stmp_device.c	…
string.c	lib/string.c: introduce strreplace()	2015-06-25 17:00:40 -07:00
string_helpers.c	lib/string_helpers.c: fix infinite loop in string_get_size()	2015-09-17 21:16:07 -07:00
strncpy_from_user.c	lib: move strncpy_from_unsafe() into mm/maccess.c	2015-08-31 12:36:10 -07:00
strnlen_user.c	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2015-06-22 15:52:04 -07:00
swiotlb.c	Merge branch 'for-4.2/sg' of git://git.kernel.dk/linux-block	2015-06-25 15:22:36 -07:00
syscall.c	…
test-hexdump.c	hexdump: Make test data really const	2015-06-25 17:00:40 -07:00
test-kstrtox.c	kstrto*: accept "-0" for signed conversion	2015-09-10 13:29:01 -07:00
test-string_helpers.c	lib/string_helpers.c: change semantics of string_escape_mem	2015-04-15 16:35:24 -07:00
test_bpf.c	test_bpf: add tests checking that JIT/interpreter sets A and X to 0.	2015-08-06 22:02:32 -07:00
test_firmware.c	…
test_kasan.c	lib/test_kasan.c: make kmalloc_oob_krealloc_less more correctly	2015-09-10 13:29:01 -07:00
test_module.c	…
test_rhashtable.c	rhashtable-test: extend to test concurrency	2015-08-17 14:33:47 -07:00
test_static_key_base.c	locking/static_keys: Provide a selftest	2015-08-03 11:51:12 +02:00
test_static_keys.c	locking/static_keys: Make verify_keys() static	2015-08-05 09:53:40 +02:00
test_user_copy.c	…
textsearch.c	…
timerqueue.c	timerqueue: Let timerqueue_add/del return information	2015-04-22 17:06:49 +02:00
ts_bm.c	…
ts_fsm.c	…
ts_kmp.c	…
ucs2_string.c	…
usercopy.c	…
uuid.c	…
vsprintf.c	lib/vsprintf.c: Include clk.h	2015-07-20 10:52:48 -07:00