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Mirsad Goran Todorovac 6111f0add6 test_firmware: prevent race conditions by a correct implementation of locking 
[ Upstream commit 4acfe3dfde ]

Dan Carpenter spotted a race condition in a couple of situations like
these in the test_firmware driver:

static int test_dev_config_update_u8(const char *buf, size_t size, u8 *cfg)
{
        u8 val;
        int ret;

        ret = kstrtou8(buf, 10, &val);
        if (ret)
                return ret;

        mutex_lock(&test_fw_mutex);
        *(u8 *)cfg = val;
        mutex_unlock(&test_fw_mutex);

        /* Always return full write size even if we didn't consume all */
        return size;
}

static ssize_t config_num_requests_store(struct device *dev,
                                         struct device_attribute *attr,
                                         const char *buf, size_t count)
{
        int rc;

        mutex_lock(&test_fw_mutex);
        if (test_fw_config->reqs) {
                pr_err("Must call release_all_firmware prior to changing config\n");
                rc = -EINVAL;
                mutex_unlock(&test_fw_mutex);
                goto out;
        }
        mutex_unlock(&test_fw_mutex);

        rc = test_dev_config_update_u8(buf, count,
                                       &test_fw_config->num_requests);

out:
        return rc;
}

static ssize_t config_read_fw_idx_store(struct device *dev,
                                        struct device_attribute *attr,
                                        const char *buf, size_t count)
{
        return test_dev_config_update_u8(buf, count,
                                         &test_fw_config->read_fw_idx);
}

The function test_dev_config_update_u8() is called from both the locked
and the unlocked context, function config_num_requests_store() and
config_read_fw_idx_store() which can both be called asynchronously as
they are driver's methods, while test_dev_config_update_u8() and siblings
change their argument pointed to by u8 *cfg or similar pointer.

To avoid deadlock on test_fw_mutex, the lock is dropped before calling
test_dev_config_update_u8() and re-acquired within test_dev_config_update_u8()
itself, but alas this creates a race condition.

Having two locks wouldn't assure a race-proof mutual exclusion.

This situation is best avoided by the introduction of a new, unlocked
function __test_dev_config_update_u8() which can be called from the locked
context and reducing test_dev_config_update_u8() to:

static int test_dev_config_update_u8(const char *buf, size_t size, u8 *cfg)
{
        int ret;

        mutex_lock(&test_fw_mutex);
        ret = __test_dev_config_update_u8(buf, size, cfg);
        mutex_unlock(&test_fw_mutex);

        return ret;
}

doing the locking and calling the unlocked primitive, which enables both
locked and unlocked versions without duplication of code.

The similar approach was applied to all functions called from the locked
and the unlocked context, which safely mitigates both deadlocks and race
conditions in the driver.

__test_dev_config_update_bool(), __test_dev_config_update_u8() and
__test_dev_config_update_size_t() unlocked versions of the functions
were introduced to be called from the locked contexts as a workaround
without releasing the main driver's lock and thereof causing a race
condition.

The test_dev_config_update_bool(), test_dev_config_update_u8() and
test_dev_config_update_size_t() locked versions of the functions
are being called from driver methods without the unnecessary multiplying
of the locking and unlocking code for each method, and complicating
the code with saving of the return value across lock.

Fixes: 7feebfa487 ("test_firmware: add support for request_firmware_into_buf")
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Russ Weight <russell.h.weight@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Tianfei Zhang <tianfei.zhang@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-kselftest@vger.kernel.org
Cc: stable@vger.kernel.org # v5.4
Suggested-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Mirsad Goran Todorovac <mirsad.todorovac@alu.unizg.hr>
Link: https://lore.kernel.org/r/20230509084746.48259-1-mirsad.todorovac@alu.unizg.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-21 16:00:51 +02:00
..
842 kbuild: trace functions in subdirectories of lib/ 2020-08-10 01:32:59 +09:00
crypto crypto: lib - remove unneeded selection of XOR_BLOCKS 2022-08-26 18:40:14 +08:00
dim linux/dim: Do nothing if no time delta between samples 2023-05-24 17:32:31 +01:00
fonts lib/fonts: fix undefined behavior in bit shift for get_default_font 2022-12-31 13:31:56 +01:00
kunit kunit: fix bug in the order of lines in debugfs logs 2023-05-11 23:03:05 +09:00
livepatch selftests/livepatch: better synchronize test_klp_callbacks_busy 2022-06-15 10:29:10 +02:00
lz4 lib: make LZ4_decompress_safe_forceExtDict() static 2022-07-17 17:31:39 -07:00
lzo lib/lzo/lzo1x_compress.c: replace ternary operator with min() and min_t() 2022-07-29 18:12:34 -07:00
math math: make RATIONAL tristate 2021-09-08 11:50:26 -07:00
mpi lib/mpi: Fix buffer overrun when SG is too long 2023-03-10 09:32:52 +01:00
pldmfw lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
raid6 lib/raid6: Include <asm/ppc-opcode.h> for VPERMXOR 2022-03-08 15:20:21 -08:00
reed_solomon treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
test_fortify fortify: Detect struct member overflows in memset() at compile-time 2022-02-13 16:50:06 -08:00
vdso lib/vdso: use "grep -E" instead of "egrep" 2022-11-23 19:50:15 +01:00
xz lib/xz, lib/decompress_unxz.c: Fix spelling in comments 2021-10-19 23:44:30 +08:00
zlib_deflate kbuild: trace functions in subdirectories of lib/ 2020-08-10 01:32:59 +09:00
zlib_dfltcc zlib: move EXPORT_SYMBOL() and MODULE_LICENSE() out of dfltcc_syms.c 2020-12-29 15:36:49 -08:00
zlib_inflate lib/zlib_inflate/inffast: check config in C to avoid unused function warning 2021-09-24 16:13:35 -07:00
zstd zstd: Fix definition of assert() 2023-04-06 12:10:38 +02:00
.gitignore bootconfig: Support embedding a bootconfig file in kernel 2022-04-26 17:58:51 -04:00
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
asn1_encoder.c lib: remove redundant assignment to variable ret 2022-01-20 08:52:55 +02:00
assoc_array.c assoc_array: Fix BUG_ON during garbage collect 2022-06-01 18:29:06 -07:00
atomic64.c locking/atomic: atomic64: Remove unusable atomic ops 2021-12-13 10:56:09 +01:00
atomic64_test.c
audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
base64.c lib/base64: RFC4648-compliant base64 encoding 2022-08-02 17:14:47 -06:00
bcd.c
bch.c lib/bch.c: fix a typo in the file bch.c 2021-05-06 19:24:12 -07:00
bitfield_kunit.c lib: kunit: Fix compilation test when using TEST_BIT_FIELD_COMPILE 2020-10-16 13:25:14 -06:00
bitmap.c lib/bitmap: remove bitmap_ord_to_pos 2022-09-26 12:19:12 -07:00
bitrev.c
bootconfig-data.S bootconfig: Support embedding a bootconfig file in kernel 2022-04-26 17:58:51 -04:00
bootconfig.c bootconfig: Support embedding a bootconfig file in kernel 2022-04-26 17:58:51 -04:00
bsearch.c lib/bsearch: Provide __always_inline variant 2020-06-11 15:14:53 +02:00
btree.c lib/btree: simplify btree_{lookup|update} 2022-06-16 19:58:21 -07:00
bucket_locks.c
bug.c cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG 2023-03-10 09:33:47 +01:00
build_OID_registry
buildid.c kdump: use vmlinux_build_id to simplify 2021-07-08 11:48:22 -07:00
bust_spinlocks.c kernel/panic: Drop unblank_screen call 2022-09-01 16:55:35 +02:00
check_signature.c
checksum.c unify generic instances of csum_partial_copy_nocheck() 2020-08-20 15:45:14 -04:00
clz_ctz.c
clz_tab.c
cmdline.c lib/cmdline: avoid page fault in next_arg 2022-09-11 21:55:06 -07:00
cmdline_kunit.c treewide: use get_random_{u8,u16}() when possible, part 1 2022-10-11 17:42:58 -06:00
cmpdi2.c
compat_audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
cpu_rmap.c lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release() 2023-06-14 11:15:22 +02:00
cpumask.c lib/find_bit: add find_next{,_and}_bit_wrap 2022-10-01 10:22:57 -07:00
cpumask_kunit.c lib/test_cpumask: Add for_each_cpu_and(not) tests 2022-10-06 05:57:36 -07:00
crc-ccitt.c
crc-itu-t.c crc-itu-t: fix typo in CRC ITU-T polynomial comment 2022-06-07 10:27:38 +02:00
crc-t10dif.c crc-t10dif: clean up some more things 2020-06-18 17:26:43 +10:00
crc4.c
crc7.c lib/crc7: fix a kernel-doc markup 2021-01-21 14:06:00 -07:00
crc8.c lib: crc8: pointer to data block should be const 2021-05-06 19:24:12 -07:00
crc16.c
crc32.c lib/crc32: Make crc32_be weak for arch override 2022-01-31 11:21:43 +11:00
crc32defs.h
crc32test.c lib/crc32test: correct printed bytes count 2022-01-31 11:21:43 +11:00
crc64-rocksoft.c crypto: add rocksoft 64b crc guard tag framework 2022-03-07 12:48:35 -07:00
crc64.c lib: add rocksoft model crc64 2022-03-07 12:48:35 -07:00
ctype.c
debug_info.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
debug_locks.c locking/lockdep: Improve noinstr vs errors 2021-06-22 13:56:43 +02:00
debugobjects.c debugobjects: Don't wake up kswapd from fill_pool() 2023-05-30 14:03:20 +01:00
dec_and_lock.c
decompress.c lib: Add zstd support to decompress 2020-07-31 11:49:08 +02:00
decompress_bunzip2.c lib/decompressors: fix spelling mistakes 2021-07-01 11:06:05 -07:00
decompress_inflate.c lib/zlib: add s390 hardware support for kernel zlib_inflate 2020-01-31 10:30:40 -08:00
decompress_unlz4.c lib/decompress_unlz4.c: correctly handle zero-padding around initrds. 2021-07-01 11:06:06 -07:00
decompress_unlzma.c lib: fix inconsistent indenting in process_bit1() 2021-05-06 19:24:12 -07:00
decompress_unlzo.c lib/decompressors: remove set but not used variabled 'level' 2021-07-01 11:06:06 -07:00
decompress_unxz.c lib/xz, lib/decompress_unxz.c: Fix spelling in comments 2021-10-19 23:44:30 +08:00
decompress_unzstd.c lib: zstd: Add decompress_sources.h for decompress_unzstd 2021-11-08 16:55:26 -08:00
devmem_is_allowed.c lib: use PFN_PHYS() in devmem_is_allowed() 2021-08-13 14:09:32 -10:00
devres.c devres: remove devm_ioremap_np 2022-09-01 18:04:43 +02:00
digsig.c crypto: sha - split sha.h into sha1.h and sha2.h 2020-11-20 14:45:33 +11:00
dump_stack.c printk: rename cpulock functions 2022-04-22 21:30:57 +02:00
dynamic_debug.c dyndbg: add drm.debug style (drm/parameters/debug) bitmap support 2022-09-07 17:04:49 +02:00
dynamic_queue_limits.c lib: dynamic_queue_limits: delete duplicated words + fix typo 2020-10-16 11:11:20 -07:00
earlycpio.c lib: move from strlcpy with unused retval to strscpy 2022-09-11 21:55:10 -07:00
errname.c printf: fix errname.c list 2023-03-10 09:33:27 +01:00
error-inject.c lib/error-inject: traverse list with mutex 2022-07-17 17:31:38 -07:00
errseq.c kernel.h: split out mathematical helpers 2020-12-15 22:46:15 -08:00
extable.c sparc32: switch to generic extables 2021-01-03 20:05:18 -05:00
fault-inject-usercopy.c lib, include/linux: add usercopy failure capability 2020-10-16 11:11:22 -07:00
fault-inject.c mm: fix unexpected changes to {failslab|fail_page_alloc}.attr 2022-11-22 18:50:44 -08:00
fdt.c
fdt_addresses.c libfdt: include fdt_addresses.c 2020-01-08 16:59:19 +00:00
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c lib/find_bit: Introduce find_next_andnot_bit() 2022-10-06 05:57:36 -07:00
find_bit_benchmark.c treewide: use prandom_u32_max() when possible, part 1 2022-10-11 17:42:55 -06:00
flex_proportions.c flex_proportions: Disable preemption entering the write section. 2022-09-19 14:35:08 +02:00
fortify_kunit.c fortify: Adjust KUnit test for modular build 2022-09-14 07:04:15 -07:00
gen_crc32table.c
gen_crc64table.c lib: add rocksoft model crc64 2022-03-07 12:48:35 -07:00
genalloc.c all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate 2022-01-15 08:47:31 -08:00
generic-radix-tree.c lib/generic-radix-tree.c: add kmemleak annotations 2019-10-14 15:04:00 -07:00
glob.c lib: remove back_str initialization 2022-04-29 14:38:01 -07:00
globtest.c
hexdump.c hex2bin: fix access beyond string end 2022-04-27 10:57:33 -07:00
hweight.c
idr.c ida: don't use BUG_ON() for debugging 2022-07-10 13:55:49 -07:00
inflate.c
interval_tree.c
interval_tree_test.c
iomap.c kmsan: add iomap support 2022-10-03 14:03:21 -07:00
iomap_copy.c
iommu-helper.c
iov_iter.c instrumented.h: allow instrumenting both sides of copy_from_user() 2022-10-03 14:03:18 -07:00
irq_poll.c lib/irq_poll: Prevent softirq pending leak in irq_poll_cpu_dead() 2022-04-13 21:32:21 +02:00
irq_regs.c
is_signed_type_kunit.c lib: Improve the is_signed_type() kunit test 2022-09-07 16:37:27 -07:00
is_single_threaded.c
kasprintf.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
Kconfig This update includes the following changes: 2022-10-10 13:04:25 -07:00
Kconfig.debug test_kprobes: Fix implicit declaration error of test_kprobes 2023-01-07 11:11:55 +01:00
Kconfig.kasan kasan: drop CONFIG_KASAN_TAGS_IDENTIFY 2022-10-03 14:02:57 -07:00
Kconfig.kcsan objtool: Make noinstr hacks optional 2022-04-22 12:32:04 +02:00
Kconfig.kfence kfence: allow use of a deferrable timer 2022-03-22 15:57:11 -07:00
Kconfig.kgdb parisc: Convert PDC console to an early console 2022-10-11 12:01:24 +02:00
Kconfig.kmsan kmsan: make sure PREEMPT_RT is off 2022-11-08 15:57:24 -08:00
Kconfig.ubsan ubsan: disable UBSAN_DIV_ZERO for clang 2022-07-14 15:45:26 -07:00
kfifo.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
klist.c
kobject.c kobject: Fix slab-out-of-bounds in fill_kobj_path() 2023-03-10 09:33:30 +01:00
kobject_uevent.c kobject: remove kset from struct kset_uevent_ops callbacks 2021-12-28 11:26:18 +01:00
kstrtox.c lib/kstrtox.c: add "false"/"true" support to kstrtobool() 2022-05-13 07:20:13 -07:00
kstrtox.h lib: vsprintf: Fix handling of number field widths in vsscanf 2021-05-19 15:05:11 +02:00
libcrc32c.c lib: libcrc32c: delete duplicated words 2020-10-16 11:11:19 -07:00
linear_ranges.c lib: add linear range get selector within 2021-08-13 18:37:38 +02:00
list-test.c list: test: Test the hlist structure 2022-04-05 13:32:27 -06:00
list_debug.c lib/list_debug.c: Detect uninitialized lists 2022-06-16 19:58:20 -07:00
list_sort.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
llist.c llist: use try_cmpxchg in llist_add_batch and llist_del_first 2022-09-11 21:55:06 -07:00
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-rtmutex.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 lockdep/selftests: Adapt ww-tests for PREEMPT_RT 2021-12-04 10:56:24 +01:00
lockref.c lockref: stop doing cpu_relax in the cmpxchg loop 2023-02-01 08:34:34 +01:00
logic_iomem.c lib/logic_iomem: correct fallback config references 2022-03-11 10:42:56 +01:00
logic_pio.c PCI: Fix pci_register_io_range() memory leak 2021-02-17 17:31:06 -06:00
lru_cache.c lib/lru_cache: fix error free handing in lc_create 2022-07-17 17:31:37 -07:00
lshrdi3.c
Makefile maple_tree: reorganize testing to restore module testing 2022-11-08 15:57:22 -08:00
maple_tree.c maple_tree: make maple state reusable after mas_empty_area() 2023-05-24 17:32:51 +01:00
memcat_p.c
memcpy_kunit.c kunit/memcpy: Avoid pathological compile-time string size 2022-09-07 16:37:48 -07:00
memory-notifier-error-inject.c
memregion.c lib/memregion.c: include memregion.h 2020-09-26 10:33:57 -07:00
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c netlink: prevent potential spectre v1 gadgets 2023-02-01 08:34:43 +01:00
nmi_backtrace.c printk: rename cpulock functions 2022-04-22 21:30:57 +02:00
notifier-error-inject.c lib/notifier-error-inject: fix error when writing -errno to debugfs file 2022-12-31 13:31:58 +01:00
notifier-error-inject.h
objagg.c lib: objagg: Use the bitmap API when applicable 2021-12-24 14:54:29 -08:00
of-reconfig-notifier-error-inject.c
oid_registry.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
once.c once: rename _SLOW to _SLEEPABLE 2022-10-03 17:34:32 -07:00
overflow_kunit.c overflow: Refactor test skips for Clang-specific issues 2022-10-25 14:57:42 -07:00
packing.c net: update NXP copyright text 2021-09-17 13:52:17 +01:00
parman.c lib: remove "expecting prototype" kernel-doc warnings 2021-04-16 16:10:37 -07:00
parser.c kernel.h: split out kstrtox() and simple_strtox() to a separate header 2021-07-01 11:06:05 -07:00
pci_iomap.c pci_iounmap'2: Electric Boogaloo: try to make sense of it all 2021-09-19 17:13:35 -07:00
percpu-refcount.c percpu_ref_init(): clean ->percpu_count_ref on failure 2022-05-18 02:20:17 -04:00
percpu_counter.c lib/percpu_counter: tame kernel-doc compile warning 2021-05-06 19:24:12 -07:00
percpu_test.c
plist.c
pm-notifier-error-inject.c
polynomial.c lib: add generic polynomial calculation 2022-05-22 11:32:30 -07:00
radix-tree.c lib/radix-tree: remove unused argument of insert_entries 2022-07-17 17:31:38 -07:00
random32.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
ratelimit.c ratelimit: Fix data-races in ___ratelimit(). 2022-08-24 13:46:57 +01:00
rbtree.c lib/: replace HTTP links with HTTPS ones 2020-08-12 10:58:00 -07:00
rbtree_test.c augmented rbtree: add new RB_DECLARE_CALLBACKS_MAX macro 2019-09-25 17:51:39 -07:00
ref_tracker.c ref_tracker: remove filter_irq_stacks() call 2022-02-06 11:05:28 +00:00
refcount.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
rhashtable.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
sbitmap.c sbitmap: Try each queue to wake up at least one waiter 2023-03-10 09:34:34 +01:00
scatterlist.c lib/scatterlist: use matched parameter type when calling __sg_free_table() 2022-07-17 17:31:39 -07:00
seq_buf.c lib: fix spelling mistakes 2021-07-08 11:48:20 -07:00
sg_pool.c lib/sg_pool: change module_init(sg_pool_init) to subsys_initcall 2022-09-23 16:46:19 +02:00
sg_split.c
show_mem.c mm: reduce noise in show_mem for lowmem allocations 2022-09-26 19:46:29 -07:00
siphash.c SPDX changes for 5.19-rc1 2022-06-03 10:34:34 -07:00
slub_kunit.c mm/slub, kunit: Make slub_kunit unaffected by user specified flags 2022-04-06 10:11:48 +02:00
smp_processor_id.c lib/smp_processor_id: fix imbalanced instrumentation_end() call 2022-07-17 17:31:41 -07:00
sort.c lib/sort: Add priv pointer to swap function 2022-03-17 20:17:18 -07:00
stackdepot.c stackdepot: reserve 5 extra bits in depot_stack_handle_t 2022-10-03 14:03:18 -07:00
stackinit_kunit.c lib: stackinit: update reference to kunit-tool 2022-09-30 13:21:22 -06:00
stmp_device.c
string.c kmsan: disable strscpy() optimization under KMSAN 2022-10-03 14:03:22 -07:00
string_helpers.c lib/string_helpers: Introduce parse_int_array_user() 2022-09-05 14:51:46 +01:00
strncpy_from_user.c lib/strn*,objtool: Enforce user_access_begin() rules 2022-04-19 21:58:47 +02:00
strnlen_user.c lib/strn*,objtool: Enforce user_access_begin() rules 2022-04-19 21:58:47 +02:00
syscall.c sched: Change task_struct::state 2021-06-18 11:43:09 +02:00
test-kstrtox.c
test-string_helpers.c treewide: use prandom_u32_max() when possible, part 1 2022-10-11 17:42:55 -06:00
test_bitmap.c lib/bitmap: add tests for for_each() loops 2022-10-01 10:22:58 -07:00
test_bitops.c lib/test: fix spelling mistakes 2021-07-08 11:48:20 -07:00
test_bits.c lib/test_bits.c: add tests of GENMASK 2020-08-12 10:58:00 -07:00
test_blackhole_dev.c
test_bpf.c test_bpf: fix incorrect netdev features 2022-06-22 19:20:20 -07:00
test_debug_virtual.c
test_dynamic_debug.c dyndbg: test DECLARE_DYNDBG_CLASSMAP, sysfs nodes 2022-09-07 17:04:49 +02:00
test_firmware.c test_firmware: prevent race conditions by a correct implementation of locking 2023-06-21 16:00:51 +02:00
test_fprobe.c treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
test_fpu.c selftests/fpu: Fix debugfs_simple_attr.cocci warning 2021-01-18 11:03:26 +01:00
test_free_pages.c lib/test_free_pages.c: pass a pointer to virt_to_page() 2022-07-17 17:14:36 -07:00
test_hash.c test_hash.c: refactor into kunit 2022-01-20 08:52:54 +02:00
test_hexdump.c treewide: use prandom_u32_max() when possible, part 1 2022-10-11 17:42:55 -06:00
test_hmm.c hmm-tests: add test for migrate_device_range() 2022-10-12 18:51:50 -07:00
test_hmm_uapi.h hmm-tests: add test for migrate_device_range() 2022-10-12 18:51:50 -07:00
test_ida.c
test_kmod.c lib/test: use after free in register_test_dev_kmod() 2022-03-29 15:13:36 -07:00
test_kprobes.c treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
test_linear_ranges.c lib/test_linear_ranges: add a test for the 'linear_ranges' 2020-05-08 18:18:12 +01:00
test_list_sort.c treewide: use prandom_u32_max() when possible, part 1 2022-10-11 17:42:55 -06:00
test_lockup.c lib/test_lockup: fix kernel pointer check for separate address spaces 2022-02-25 09:36:06 +01:00
test_maple_tree.c test_maple_tree: add more testing for mas_empty_area() 2023-03-30 12:49:26 +02:00
test_memcat_p.c
test_meminit.c lib/test_meminit: add checks for the allocation functions 2022-10-12 18:51:49 -07:00
test_min_heap.c treewide: use get_random_u32() when possible 2022-10-11 17:42:58 -06:00
test_module.c
test_objagg.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
test_parman.c
test_printf.c lib/test_printf.c: fix clang -Wformat warnings 2022-07-28 10:38:30 +02:00
test_ref_tracker.c lib: add tests for reference tracker 2021-12-06 16:04:44 -08:00
test_rhashtable.c rhashtable: make test actually random 2022-10-26 13:39:09 +01:00
test_scanf.c lib/test_scanf: split up number parsing test routines 2021-09-06 11:04:03 -07:00
test_siphash.c siphash: add SPDX tags as sole licensing authority 2022-05-19 18:54:22 +02:00
test_sort.c lib/test: convert test_sort.c to use KUnit 2021-09-08 11:50:26 -07:00
test_static_key_base.c
test_static_keys.c
test_string.c lib/test_string.c: add strspn and strcspn tests 2022-04-29 14:38:00 -07:00
test_strscpy.c
test_sysctl.c selftests/sysctl: add sysctl macro test 2022-05-03 10:15:07 +02:00
test_ubsan.c ubsan: remove CONFIG_UBSAN_OBJECT_SIZE 2022-01-20 08:52:55 +02:00
test_user_copy.c usercopy: Avoid soft lockups in test_check_nonzero_user() 2019-10-16 14:56:21 +02:00
test_uuid.c
test_vmalloc.c treewide: use get_random_{u8,u16}() when possible, part 2 2022-10-11 17:42:58 -06:00
test_xarray.c XArray: Fix xas_create_range() when multi-order entry present 2022-03-28 19:25:11 -04:00
textsearch.c lib: textsearch: fix escapes in example code 2019-10-03 12:12:23 -04:00
timerqueue.c rbtree, timerqueue: Use rb_add_cached() 2021-02-17 14:08:01 +01:00
trace_readwrite.c lib: Add register read/write tracing support 2022-06-15 17:41:12 +02:00
ts_bm.c lib/ts_bm.c: remove redundant store to variable consumed after addition 2022-07-17 17:31:39 -07:00
ts_fsm.c Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" 2020-11-18 14:15:17 -06:00
ts_kmp.c lib/ts_kmp.c: replace zero-length array with flexible-array member 2020-04-07 10:43:43 -07:00
ubsan.c panic: Consolidate open-coded panic_on_warn checks 2023-01-24 07:24:41 +01:00
ubsan.h ubsan: implement __ubsan_handle_alignment_assumption 2021-02-05 11:03:47 -08:00
ucmpdi2.c
ucs2_string.c
usercopy.c uaccess: Add speculation barrier to copy_from_user() 2023-02-25 11:25:41 +01:00
uuid.c treewide: use get_random_bytes() when possible 2022-10-11 17:42:58 -06:00
vsprintf.c printk changes for 6.1 2022-10-10 11:24:19 -07:00
win_minmax.c
xarray.c mm/huge_memory: Fix xarray node memory leak 2022-06-09 16:24:25 -04:00
xxhash.c lib/: replace HTTP links with HTTPS ones 2020-08-12 10:58:00 -07:00