Sasha Levin 05efa8c943 random32: avoid attempt to late reseed if in the middle of seeding ... Commit 4af712e8df ("random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized") has added a late reseed stage that happens as soon as the nonblocking pool is marked as initialized. This fails in the case that the nonblocking pool gets initialized during __prandom_reseed()'s call to get_random_bytes(). In that case we'd double back into __prandom_reseed() in an attempt to do a late reseed - deadlocking on 'lock' early on in the boot process. Instead, just avoid even waiting to do a reseed if a reseed is already occuring. Fixes: 4af712e8df ("random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized") Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-03-28 16:04:19 -04:00
..
fonts	partly revert commit 8a10bc9: parisc/sti_console: prefer Linux fonts over built-in ROM fonts	2014-03-23 16:44:42 +01:00
lz4	lz4: fix compression/decompression signedness mismatch	2013-09-11 15:59:45 -07:00
lzo	…
mpi	MPILIB: add module description and license	2013-09-25 17:17:01 +01:00
raid6	md update for v3.12	2013-09-10 13:03:41 -07:00
reed_solomon	…
xz	…
zlib_deflate	…
zlib_inflate	…
.gitignore	…
Kconfig	Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2013-11-21 19:46:00 -08:00
Kconfig.debug	kbuild: don't enable DEBUG_INFO when building for COMPILE_TEST	2014-02-04 12:20:01 -08:00
Kconfig.kgdb	treewide: Fix typo in printk	2013-06-18 13:48:45 +02:00
Kconfig.kmemcheck	…
Makefile	* Avoid WARN_ON() when mapping BGRT on Baytrail (EFI 32-bit).	2014-02-07 11:27:30 -08:00
argv_split.c	argv_split(): teach it to handle mutable strings	2013-04-29 18:28:19 -07:00
asn1_decoder.c	…
assoc_array.c	assoc_array: remove global variable	2014-01-23 09:25:10 -08:00
atomic64.c	…
atomic64_test.c	…
audit.c	…
average.c	lib: Ensure EWMA does not store wrong intermediate values	2014-01-16 23:46:06 -08:00
bcd.c	…
bch.c	…
bitmap.c	…
bitrev.c	…
bsearch.c	…
btree.c	…
bug.c	…
build_OID_registry	X.509: do not emit any informational output	2013-06-19 17:54:06 +02:00
bust_spinlocks.c	…
check_signature.c	…
checksum.c	…
clz_ctz.c	lib: add weak clz/ctz functions	2013-07-09 10:33:30 -07:00
clz_tab.c	…
cmdline.c	lib/cmdline.c: declare exported symbols immediately	2014-01-23 16:36:57 -08:00
cordic.c	…
cpu-notifier-error-inject.c	…
cpu_rmap.c	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
cpumask.c	lib/cpumask.c: use memblock apis for early memory allocations	2014-01-21 16:19:47 -08:00
crc-ccitt.c	…
crc-itu-t.c	…
crc-t10dif.c	crypto: crct10dif - Add fallback for broken initrds	2013-09-12 15:31:34 +10:00
crc7.c	…
crc8.c	…
crc16.c	…
crc32.c	lib: crc32: reduce number of cases for crc32{, c}_combine	2013-11-04 15:27:08 -05:00
crc32defs.h	…
ctype.c	…
debug_locks.c	mutex: Add support for wound/wait style locks	2013-06-26 12:10:56 +02:00
debugobjects.c	lib/debugobjects.c: remove unnecessary work pending test	2013-11-13 12:09:22 +09:00
dec_and_lock.c	…
decompress.c	lib: add support for LZ4-compressed kernel	2013-07-09 10:33:30 -07:00
decompress_bunzip2.c	…
decompress_inflate.c	lib/decompressors: fix "no limit" output buffer length	2013-09-11 15:58:38 -07:00
decompress_unlz4.c	lib/decompress_unlz4.c: always set an error return code on failures	2014-01-23 16:37:04 -08:00
decompress_unlzma.c	…
decompress_unlzo.c	…
decompress_unxz.c	…
devres.c	…
digsig.c	lib/digsig.c: use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))	2013-11-13 12:09:22 +09:00
div64.c	math64: New separate div64_u64_rem helper	2013-08-23 09:02:14 -04:00
dma-debug.c	dma debug: account for cachelines and read-only mappings in overlap tracking	2014-03-04 07:55:47 -08:00
dump_stack.c	x86, asmlinkage: Make dump_stack visible	2013-08-06 14:21:01 -07:00
dynamic_debug.c	dynamic_debug: replace obselete simple_strtoul() with kstrtouint()	2014-01-27 21:02:39 -08:00
dynamic_queue_limits.c	…
earlycpio.c	earlycpio.c: Fix the confusing comment of find_cpio_data().	2013-08-14 23:24:01 +02:00
extable.c	…
fault-inject.c	debugfs: add get/set for atomic types	2013-06-03 13:55:01 -07:00
fdt.c	…
fdt_ro.c	…
fdt_rw.c	…
fdt_strerror.c	…
fdt_sw.c	…
fdt_wip.c	…
find_last_bit.c	…
find_next_bit.c	…
flex_array.c	reciprocal_divide: update/correction of the algorithm	2014-01-21 23:17:20 -08:00
flex_proportions.c	…
gcd.c	…
gen_crc32table.c	…
genalloc.c	lib/genalloc.c: add check gen_pool_dma_alloc() if dma pointer is not NULL	2014-01-29 16:22:39 -08:00
halfmd4.c	…
hash.c	lib: hash: follow-up fixups for arch hash	2013-12-19 00:14:53 -05:00
hexdump.c	lib: introduce upper case hex ascii helpers	2013-09-20 15:38:26 -04:00
hweight.c	…
idr.c	idr: print a stack dump after ida_remove warning	2013-07-03 16:08:04 -07:00
inflate.c	…
int_sqrt.c	lib/int_sqrt.c: optimize square root algorithm	2013-04-29 18:28:19 -07:00
interval_tree.c	…
interval_tree_test_main.c	…
iomap.c	…
iomap_copy.c	…
iommu-helper.c	…
ioremap.c	…
iovec.c	Hoist memcpy_fromiovec/memcpy_toiovec into lib/	2013-05-20 10:24:22 +09:30
irq_regs.c	…
is_single_threaded.c	…
jedec_ddr_data.c	…
kasprintf.c	…
kfifo.c	kfifo: kfifo_copy_{to,from}_user: fix copied bytes calculation	2013-11-15 09:32:23 +09:00
klist.c	klist: del waiter from klist_remove_waiters before wakeup waitting process	2013-05-21 10:16:39 -07:00
kobject.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2014-01-30 20:08:20 -08:00
kobject_uevent.c	net: fix "queues" uevent between network namespaces	2014-01-19 20:02:02 -08:00
kstrtox.c	lib/kstrtox.c: remove redundant cleanup	2014-01-23 16:36:57 -08:00
kstrtox.h	…
lcm.c	…
libcrc32c.c	…
list_debug.c	…
list_sort.c	lib/: rename random32() to prandom_u32()	2013-04-29 18:28:42 -07:00
llist.c	llists-move-llist_reverse_order-from-raid5-to-llistc-fix	2013-11-15 09:32:22 +09:00
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	sched: Introduce preempt_count accessor functions	2013-09-25 14:07:32 +02:00
lockref.c	lockref: include mutex.h rather than reinvent arch_mutex_cpu_relax	2013-11-27 20:37:33 -08:00
lru_cache.c	…
md5.c	…
memory-notifier-error-inject.c	…
memweight.c	…
net_utils.c	net: core: move mac_pton() to lib/net_utils.c	2013-06-05 12:00:27 -07:00
nlattr.c	…
notifier-error-inject.c	…
notifier-error-inject.h	…
of-reconfig-notifier-error-inject.c	…
oid_registry.c	Give the OID registry file module info to avoid kernel tainting	2013-05-05 14:38:00 -07:00
parser.c	lib/parser.c: put EXPORT_SYMBOLs in the conventional place	2014-01-23 16:36:55 -08:00
pci_iomap.c	…
percpu-refcount.c	percpu-refcount: Add a WARN() for ref going negative	2014-01-21 04:40:56 -05:00
percpu_counter.c	percpu_counter: unbreak __percpu_counter_add()	2014-01-17 11:32:24 +11:00
percpu_ida.c	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2014-02-14 10:45:18 -08:00
percpu_test.c	percpu: add test module for various percpu operations	2013-11-13 12:09:11 +09:00
plist.c	…
pm-notifier-error-inject.c	…
prio_heap.c	…
proportions.c	…
radix-tree.c	lib/radix-tree.c: swapoff tmpfs radix_tree: remember to rcu_read_unlock	2014-03-04 07:55:47 -08:00
random32.c	random32: avoid attempt to late reseed if in the middle of seeding	2014-03-28 16:04:19 -04:00
ratelimit.c	…
rational.c	…
rbtree.c	rbtree: add postorder iteration functions	2013-09-11 15:59:19 -07:00
rbtree_test.c	rbtree/test: test rbtree_postorder_for_each_entry_safe()	2014-01-23 16:37:03 -08:00
reciprocal_div.c	reciprocal_divide: update/correction of the algorithm	2014-01-21 23:17:20 -08:00
scatterlist.c	lib/scatterlist: export sg_miter_skip()	2013-12-08 17:56:37 -08:00
sha1.c	…
show_mem.c	lib/show_mem.c: show num_poisoned_pages when oom	2014-01-21 16:19:48 -08:00
smp_processor_id.c	sched: Introduce preempt_count accessor functions	2013-09-25 14:07:32 +02:00
sort.c	…
stmp_device.c	…
string.c	…
string_helpers.c	lib/string_helpers: introduce generic string_unescape	2013-04-30 17:04:03 -07:00
strncpy_from_user.c	…
strnlen_user.c	…
swiotlb.c	memblock, nobootmem: add memblock_virt_alloc_low()	2014-01-27 21:02:38 -08:00
syscall.c	…
test-kstrtox.c	…
test-string_helpers.c	lib/string_helpers: introduce generic string_unescape	2013-04-30 17:04:03 -07:00
test_module.c	test: add minimal module for verification testing	2014-01-23 16:36:57 -08:00
test_user_copy.c	test: check copy_to/from_user boundary validation	2014-01-23 16:36:57 -08:00
textsearch.c	…
timerqueue.c	…
ts_bm.c	…
ts_fsm.c	…
ts_kmp.c	…
ucs2_string.c	…
usercopy.c	Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS	2013-04-30 17:04:09 -07:00
uuid.c	uuid: use prandom_bytes()	2013-04-29 18:28:42 -07:00
vsprintf.c	vsprintf: add %pad extension for dma_addr_t use	2014-01-23 16:36:56 -08:00