Steven Rostedt (VMware) 85f4f12d51 vsprintf: Replace memory barrier with static_key for random_ptr_key update ...

Reviewing Tobin's patches for getting pointers out early before
entropy has been established, I noticed that there's a lone smp_mb() in
the code. As with most lone memory barriers, this one appears to be
incorrectly used.

We currently basically have this:

	get_random_bytes(&ptr_key, sizeof(ptr_key));
	/*
	 * have_filled_random_ptr_key==true is dependent on get_random_bytes().
	 * ptr_to_id() needs to see have_filled_random_ptr_key==true
	 * after get_random_bytes() returns.
	 */
	smp_mb();
	WRITE_ONCE(have_filled_random_ptr_key, true);

And later we have:

	if (unlikely(!have_filled_random_ptr_key))
		return string(buf, end, "(ptrval)", spec);

/* Missing memory barrier here. */

	hashval = (unsigned long)siphash_1u64((u64)ptr, &ptr_key);

As the CPU can perform speculative loads, we could have a situation
with the following:

	CPU0				CPU1
	----				----
				   load ptr_key = 0
   store ptr_key = random
   smp_mb()
   store have_filled_random_ptr_key

				   load have_filled_random_ptr_key = true

				    BAD BAD BAD! (you're so bad!)

Because nothing prevents CPU1 from loading ptr_key before loading
have_filled_random_ptr_key.

But this race is very unlikely, but we can't keep an incorrect smp_mb() in
place. Instead, replace the have_filled_random_ptr_key with a static_branch
not_filled_random_ptr_key, that is initialized to true and changed to false
when we get enough entropy. If the update happens in early boot, the
static_key is updated immediately, otherwise it will have to wait till
entropy is filled and this happens in an interrupt handler which can't
enable a static_key, as that requires a preemptible context. In that case, a
work_queue is used to enable it, as entropy already took too long to
establish in the first place waiting a little more shouldn't hurt anything.

The benefit of using the static key is that the unlikely branch in
vsprintf() now becomes a nop.

Link: http://lkml.kernel.org/r/20180515100558.21df515e@gandalf.local.home

Cc: stable@vger.kernel.org
Fixes: ad67b74d24 ("printk: hash addresses printed with %p")
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

2018-05-16 09:01:41 -04:00

..

842

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

fonts

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

lz4

lib/lz4: make arrays static const, reduces object code size

2017-10-03 17:54:25 -07:00

lzo

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mpi

lib/mpi: Fix umul_ppmm() for MIPS64r6

2017-12-22 19:39:09 +11:00

raid6

Merge tag 'powerpc-4.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2018-04-07 12:08:19 -07:00

reed_solomon

lib: Remove unnecessary inclusions of asm/semaphore.h

2008-04-18 22:17:17 -04:00

xz

lib/xz: Add fall-through comments to a switch statement

2017-10-12 15:10:12 +02:00

zlib_deflate

zlib_deflate/deftree: remove bi_reverse()

2015-09-10 13:29:01 -07:00

zlib_inflate

lib/zlib_inflate/inftrees.c: fix potential buffer overflow

2017-05-08 17:15:12 -07:00

zstd

lib: zstd: clean up Makefile for simpler composite object handling

2018-03-26 02:01:27 +09:00

.gitignore

X.509: Implement simple static OID registry

2012-10-08 13:50:18 +10:30

argv_split.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ashldi3.c

move libgcc.h to include/linux

2017-12-01 13:09:40 -08:00

ashrdi3.c

move libgcc.h to include/linux

2017-12-01 13:09:40 -08:00

asn1_decoder.c

ASN.1: check for error from ASN1_OP_END__ACT actions

2017-12-08 15:13:27 +00:00

assoc_array.c

lib/assoc_array: Remove smp_read_barrier_depends()

2017-12-04 10:52:56 -08:00

atomic64_test.c

lib/atomic64_test.c: add a test that atomic64_inc_not_zero() returns an int

2017-07-14 15:05:13 -07:00

atomic64.c

locking/atomic: Implement atomic{,64,_long}_fetch_{add,sub,and,andnot,or,xor}{,_relaxed,_acquire,_release}()

2016-06-16 10:48:32 +02:00

audit.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

bcd.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

bch.c

lib: add shared BCH ECC library

2011-03-11 14:25:50 +00:00

bitmap.c

lib: fix stall in __bitmap_parselist()

2018-04-05 21:36:21 -07:00

bitrev.c

ARM: 8187/1: add CONFIG_HAVE_ARCH_BITREVERSE to support rbit instruction

2014-12-22 16:43:06 +00:00

bsearch.c

lib/bsearch.c: micro-optimize pivot position calculation

2017-07-10 16:32:35 -07:00

btree.c

btree: avoid variable-length allocations

2018-03-14 16:55:29 -07:00

bucket_locks.c

spinlock: Add library function to allocate spinlock buckets array

2017-12-11 09:58:39 -05:00

bug.c

lib/bug.c: exclude non-BUG/WARN exceptions from report_bug()

2018-03-09 16:40:01 -08:00

build_OID_registry

X.509: do not emit any informational output

2013-06-19 17:54:06 +02:00

bust_spinlocks.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

chacha20.c

crypto: chacha20 - use rol32() macro from bitops.h

2018-01-12 23:03:01 +11:00

check_signature.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

checksum.c

ipv4: Update parameters for csum_tcpudp_magic to their original types

2016-03-13 23:55:13 -04:00

clz_ctz.c

lib/clz_ctz.c: add prototype declarations in lib/clz_ctz.c

2014-04-03 16:21:12 -07:00

clz_tab.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

cmdline.c

lib/cmdline.c: remove meaningless comment

2017-09-08 18:26:49 -07:00

cmpdi2.c

move libgcc.h to include/linux

2017-12-01 13:09:40 -08:00

compat_audit.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

cordic.c

Docs: wording: functions -> algorithm

2011-10-29 21:20:22 +02:00

cpu_rmap.c

sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()

2015-05-27 15:22:15 +02:00

cpumask.c

lib: optimize cpumask_next_and()

2018-02-06 18:32:44 -08:00

crc4.c

docs: clean up and add rest of CRC functions to kernel-api.rst

2017-09-26 15:01:20 -06:00

crc7.c

lib/crc7: Shift crc7() output left 1 bit

2014-05-16 14:26:52 -04:00

crc8.c

docs: clean up and add rest of CRC functions to kernel-api.rst

2017-09-26 15:01:20 -06:00

crc16.c

…

crc32.c

docs: clean up and add rest of CRC functions to kernel-api.rst

2017-09-26 15:01:20 -06:00

crc32defs.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

crc32test.c

lib: add module support to crc32 tests

2017-02-24 17:46:57 -08:00

crc-ccitt.c

lib/crc-ccitt: Add CCITT-FALSE CRC16 variant

2018-01-08 10:08:33 +00:00

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

ctype.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

debug_info.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

debug_locks.c

mutex: Add support for wound/wait style locks

2013-06-26 12:10:56 +02:00

debugobjects.c

debugobjects: Avoid another unused variable warning

2018-03-14 20:20:01 +01:00

dec_and_lock.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

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

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

decompress_unlz4.c

lib/decompress_unlz4: change module to work with new LZ4 module version

2017-02-24 17:46:57 -08:00

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

decompress.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

devres.c

devres: combine function devm_ioremap*

2018-03-15 18:08:55 +01:00

digsig.c

lib/digsig: fix dereference of NULL user_key_payload

2017-10-12 17:16:40 +01:00

div64.c

Merge tag 'docs-4.15' of git://git.lwn.net/linux

2017-11-13 08:25:06 -08:00

dma-debug.c

dma-debug: fix memory leak in debug_dma_alloc_coherent

2018-02-22 15:02:33 -08:00

dma-direct.c

dma-direct: don't retry allocation for no-op GFP_DMA

2018-04-23 14:43:27 +02:00

dma-virt.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

dump_stack.c

printk: move dump stack related code to lib/dump_stack.c

2018-03-15 13:25:36 +01:00

dynamic_debug.c

dynamic-debug-howto: fix optional/omitted ending line number to be LARGE instead of 0

2017-11-17 16:10:01 -08:00

dynamic_queue_limits.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2017-11-15 11:56:19 -08:00

earlycpio.c

lib/cpio: Make find_cpio_data()'s offset arg optional

2016-06-08 11:04:19 +02:00

error-inject.c

error-injection: Add injectable error types

2018-01-12 17:33:38 -08:00

errseq.c

errseq: Always report a writeback error once

2018-04-27 08:51:26 -04:00

extable.c

lib/extable.c: use bsearch() library function in search_extable()

2017-07-10 16:32:35 -07:00

fault-inject.c

fault-inject: fix wrong should_fail() decision in task context

2017-08-10 15:54:06 -07:00

fdt_empty_tree.c

lib: add fdt_empty_tree.c

2014-04-30 19:49:37 +01:00

fdt_ro.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt_rw.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt_strerror.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt_sw.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt_wip.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

fdt.c

of/lib: Allow scripts/dtc/libfdt to be used from kernel code

2012-07-23 13:54:52 +01:00

find_bit_benchmark.c

lib/find_bit_benchmark.c: avoid soft lockup in test_find_first_bit()

2018-05-11 17:28:45 -07:00

find_bit.c

lib: optimize cpumask_next_and()

2018-02-06 18:32:44 -08:00

flex_array.c

reciprocal_divide: update/correction of the algorithm

2014-01-21 23:17:20 -08:00

flex_proportions.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

gcd.c

lib/gcd: add kernel-doc notation

2017-10-07 10:45:14 -06:00

gen_crc32table.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

genalloc.c

lib/genalloc.c: make the avail variable an atomic_long_t

2017-11-17 16:10:02 -08:00

glob.c

lib: add module support to glob tests

2017-02-24 17:46:57 -08:00

globtest.c

lib: add module support to glob tests

2017-02-24 17:46:57 -08:00

hexdump.c

lib/hexdump.c: return -EINVAL in case of error in hex2bin()

2017-09-08 18:26:49 -07:00

hweight.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

idr.c

idr: Fix handling of IDs above INT_MAX

2018-02-26 14:39:30 -05:00

inflate.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

int_sqrt.c

lib: Add strongly typed 64bit int_sqrt

2018-02-04 10:17:21 +00:00

interval_tree_test.c

lib/rbtree-test: lower default params

2017-11-17 16:10:02 -08:00

interval_tree.c

lib/interval_tree.c: simplify includes

2015-02-12 18:54:15 -08:00

iomap_copy.c

lib/iomap_copy.c: add __ioread32_copy()

2016-01-20 17:09:18 -08:00

iomap.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

iommu-common.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

iommu-helper.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

ioremap.c

mm/vmalloc: add interfaces to free unmapped page table

2018-03-22 17:07:01 -07:00

iov_iter.c

new primitive: iov_iter_for_each_range()

2017-10-11 22:36:54 -04:00

irq_poll.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

irq_regs.c

lib: reduce the use of module.h wherever possible

2012-03-07 15:04:04 -05:00

is_single_threaded.c

sched/headers: Prepare to move 'init_task' and 'init_thread_union' from <linux/sched.h> to <linux/sched/task.h>

2017-03-02 08:42:38 +01:00

jedec_ddr_data.c

ddr: add LPDDR2 data from JESD209-2

2012-05-02 00:04:06 -07:00

kasprintf.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

Kconfig

lib: Add generic PIO mapping method

2018-03-21 17:18:34 -05:00

Kconfig.debug

lib/Kconfig.debug: Debug Lockups and Hangs: keep SOFTLOCKUP options together

2018-04-11 10:28:35 -07:00

Kconfig.kasan

kasan: rework Kconfig settings

2018-02-06 18:32:47 -08:00

Kconfig.kgdb

lib: update location of kgdb documentation

2017-05-16 08:44:22 -03:00

Kconfig.ubsan

lib: add testing module for UBSAN

2018-04-11 10:28:35 -07:00

kfifo.c

kfifo: fix inaccurate comment

2018-03-27 11:15:42 +02:00

klist.c

klist: fix starting point removed bug in klist iterators

2016-02-07 22:18:47 -08:00

kobject_uevent.c

net: Drop pernet_operations::async

2018-03-27 13:18:09 -04:00

kobject.c

kobject: don't use WARN for registration failures

2018-04-23 13:14:55 +02:00

kstrtox.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

kstrtox.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

lcm.c

block: fix blk_stack_limits() regression due to lcm() change

2015-03-31 09:45:50 -06:00

libcrc32c.c

libcrc32c: Add crc32c_impl function

2018-03-26 15:09:38 +02:00

list_debug.c

lib/list_debug.c: print unmangled addresses

2018-04-11 10:28:35 -07:00

list_sort.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

llist.c

locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE()

2017-10-25 11:01:08 +02:00

locking-selftest-hardirq.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest-mutex.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest-rlock-hardirq.h

…

locking-selftest-rlock-softirq.h

…

locking-selftest-rlock.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest-rsem.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest-rtmutex.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest-softirq.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest-spin-hardirq.h

…

locking-selftest-spin-softirq.h

…

locking-selftest-spin.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest-wlock-hardirq.h

…

locking-selftest-wlock-softirq.h

…

locking-selftest-wlock.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest-wsem.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

locking-selftest.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

lockref.c

lockref: Add lockref_put_not_zero

2018-04-12 09:41:19 -07:00

logic_pio.c

lib: Add generic PIO mapping method

2018-03-21 17:18:34 -05:00

lru_cache.c

lru_cache: Converted lc_seq_printf_status to return void

2015-11-25 09:22:02 -07:00

lshrdi3.c

move libgcc.h to include/linux

2017-12-01 13:09:40 -08:00

Makefile

lib: add testing module for UBSAN

2018-04-11 10:28:35 -07:00

memory-notifier-error-inject.c

memory: memory notifier error injection module

2012-07-30 17:25:22 -07:00

memweight.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

muldi3.c

move libgcc.h to include/linux

2017-12-01 13:09:40 -08:00

net_utils.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

netdev-notifier-error-inject.c

net: Add support for CHANGEUPPER notifier error injection

2015-12-03 11:49:23 -05:00

nlattr.c

netlink: Relax attr validation for fixed length types

2017-12-07 14:00:57 -05:00

nmi_backtrace.c

lib/nmi_backtrace.c: fix kernel text address leak

2017-11-17 16:10:02 -08:00

nodemask.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

notifier-error-inject.c

mode_t, whack-a-mole at 11...

2013-04-09 14:13:05 -04:00

notifier-error-inject.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

of-reconfig-notifier-error-inject.c

powerpc+of: Rename and fix OF reconfig notifier error inject module

2012-12-14 10:32:52 +11:00

oid_registry.c

509: fix printing uninitialized stack memory when OID is empty

2017-12-08 15:13:28 +00:00

once.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2017-11-04 09:26:51 +09:00

parman.c

lib: Introduce priority array area manager

2017-02-03 16:35:42 -05:00

parser.c

parser: add u64 number parser

2016-12-06 10:17:03 +02:00

pci_iomap.c

PCI: Add SPDX GPL-2.0 when no license was specified

2018-01-26 11:45:16 -06:00

percpu_counter.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

percpu_ida.c

sched/headers: Prepare to remove the <linux/gfp.h> include from <linux/sched.h>

2017-03-02 08:42:34 +01:00

percpu_test.c

percpu: add test module for various percpu operations

2013-11-13 12:09:11 +09:00

percpu-refcount.c

percpu_ref: Update doc to dissuade users from depending on internal RCU grace periods

2018-03-19 10:09:44 -07:00

plist.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>

2017-03-02 08:42:27 +01:00

pm-notifier-error-inject.c

PM: PM notifier error injection module

2012-07-30 17:25:22 -07:00

prime_numbers.c

lib/prime_numbers: Suppress warn on kmalloc failure

2017-01-23 09:17:12 +01:00

radix-tree.c

radix tree: use GFP_ZONEMASK bits of gfp_t for flags

2018-04-11 10:28:39 -07:00

random32.c

treewide: Switch DEFINE_TIMER callbacks to struct timer_list *

2017-11-21 15:57:05 -08:00

ratelimit.c

lib/ratelimit.c: use deferred printk() version

2017-10-03 17:54:26 -07:00

rational.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rbtree_test.c

lib/rbtree-test: lower default params

2017-11-17 16:10:02 -08:00

rbtree.c

lib/rbtree,drm/mm: add rbtree_replace_node_cached()

2017-12-14 16:00:48 -08:00

reciprocal_div.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

refcount.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rhashtable.c

rhashtable: add schedule points

2018-03-31 23:25:39 -04:00

sbitmap.c

sbitmap: use test_and_set_bit_lock()/clear_bit_unlock()

2018-02-28 12:23:35 -07:00

scatterlist.c

lib/scatterlist: add sg_init_marker() helper

2018-03-30 22:50:15 +02:00

seq_buf.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sg_pool.c

lib: scatterlist: move SG pool code from SCSI driver to lib/sg_pool.c

2016-04-15 16:53:14 -04:00

sg_split.c

lib: scatterlist: add sg splitting function

2015-08-24 14:28:01 -06:00

sha1.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

sha256.c

kernel/kexec_file.c: move purgatories sha256 to common code

2018-04-13 17:10:28 -07:00

show_mem.c

lib/show_mem.c: teach show_mem to work with the given nodemask

2017-02-22 16:41:30 -08:00

siphash.c

siphash: implement HalfSipHash1-3 for hash tables

2017-01-09 13:58:57 -05:00

smp_processor_id.c

lib: do not use print_symbol()

2018-01-05 15:24:00 +01:00

sort.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

stackdepot.c

lib/stackdepot.c: use a non-instrumented version of memcmp()

2018-02-06 18:32:44 -08:00

stmp_device.c

lib/stmp_device.c: replace module.h include

2015-02-12 18:54:16 -08:00

string_helpers.c

mm: treewide: remove GFP_TEMPORARY allocation flag

2017-09-13 18:53:16 -07:00

string.c

lib/strscpy: Shut up KASAN false-positives in strscpy()

2018-02-01 12:20:21 -08:00

strncpy_from_user.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

strnlen_user.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

swiotlb.c

swiotlb: silent unwanted warning "buffer is full"

2018-05-12 11:57:37 +02:00

syscall.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

test_bitmap.c

lib/test_bitmap.c: do not accidentally use stack VLA

2018-04-11 10:28:35 -07:00

test_bpf.c

test_bpf: Fix NULL vs IS_ERR() check in test_skb_segment()

2018-03-29 14:33:29 -04:00

test_debug_virtual.c

lib: add test module for CONFIG_DEBUG_VIRTUAL

2017-09-08 18:26:49 -07:00

test_firmware.c

headers: untangle kmemleak.h from mm.h

2018-04-05 21:36:27 -07:00

test_hash.c

lib/test_hash.c: fix warning in preprocessor symbol evaluation

2016-09-01 17:52:01 -07:00

test_hexdump.c

test_hexdump: print statistics at the end

2016-01-20 17:09:18 -08:00

test_kasan.c

kasan: fix invalid-free test crashing the kernel

2018-04-11 10:28:32 -07:00

test_kmod.c

lib/test_kmod.c: fix limit check on number of test devices created

2018-03-09 16:40:02 -08:00

test_list_sort.c

lib/test: delete five error messages for failed memory allocations

2017-11-17 16:10:01 -08:00

test_module.c

test: add minimal module for verification testing

2014-01-23 16:36:57 -08:00

test_parman.c

lib: fix spelling mistake: "actualy" -> "actually"

2017-02-26 11:03:38 -05:00

test_printf.c

printk: hash addresses printed with %p

2017-11-29 12:09:02 +11:00

test_rhashtable.c

test_rhashtable: add test case for rhltable with duplicate objects

2018-03-07 10:44:03 -05:00

test_siphash.c

siphash: implement HalfSipHash1-3 for hash tables

2017-01-09 13:58:57 -05:00

test_sort.c

lib/test_sort.c: add module unload support

2018-02-06 18:32:45 -08:00

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: Avoid nested functions

2016-02-09 10:27:29 +01:00

test_string.c

lib: add module support to string tests

2017-11-17 16:10:01 -08:00

test_sysctl.c

test_sysctl: test against int proc_dointvec() array support

2017-07-12 16:26:00 -07:00

test_ubsan.c

lib/test_ubsan.c: make test_ubsan_misaligned_access() static

2018-04-11 10:28:35 -07:00

test_user_copy.c

treewide: simplify Kconfig dependencies for removed archs

2018-03-26 15:55:57 +02:00

test_uuid.c

uuid: fix incorrect uuid_equal conversion in test_uuid_test

2017-07-21 09:38:30 +02:00

test-kstrtox.c

kstrto*: accept "-0" for signed conversion

2015-09-10 13:29:01 -07:00

test-string_helpers.c

lib/test-string_helpers.c: fix and improve string_get_size() tests

2016-02-03 08:28:43 -08:00

textsearch.c

textsearch: fix kernel-doc warnings and add kernel-api section

2018-04-16 18:53:13 -04:00

timerqueue.c

timerqueue: Document return values of timerqueue_add/del()

2017-12-29 23:13:10 +01:00

ts_bm.c

textsearch: ts_bm: support case insensitive searching in Boyer-Moore algorithm

2008-07-08 02:37:54 -07:00

ts_fsm.c

textsearch: fix typos in library helpers

2017-10-22 03:14:07 +01:00

ts_kmp.c

textsearch: fix typos in library helpers

2017-10-22 03:14:07 +01:00

ubsan.c

lib/ubsan: remove returns-nonnull-attribute checks

2018-02-06 18:32:46 -08:00

ubsan.h

lib/ubsan: remove returns-nonnull-attribute checks

2018-02-06 18:32:46 -08:00

ucmpdi2.c

move libgcc.h to include/linux

2017-12-01 13:09:40 -08:00

ucs2_string.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

usercopy.c

Fix misannotated out-of-line _copy_to_user()

2017-12-11 09:35:11 -05:00

uuid.c

Documentation: add UUID/GUID to kernel-api

2017-12-11 15:03:08 -07:00

vsprintf.c

vsprintf: Replace memory barrier with static_key for random_ptr_key update

2018-05-16 09:01:41 -04:00

win_minmax.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

xxhash.c

lib: Add xxhash module

2017-08-15 09:02:07 -07:00