Alexander Potapenko f9cfb1910e string: use __builtin_memcpy() in strlcpy/strlcat ... lib/string.c is built with -ffreestanding, which prevents the compiler from replacing certain functions with calls to their library versions. On the other hand, this also prevents Clang and GCC from instrumenting calls to memcpy() when building with KASAN, KCSAN or KMSAN: - KASAN normally replaces memcpy() with __asan_memcpy() with the additional cc-param,asan-kernel-mem-intrinsic-prefix=1; - KCSAN and KMSAN replace memcpy() with __tsan_memcpy() and __msan_memcpy() by default. To let the tools catch memory accesses from strlcpy/strlcat, replace the calls to memcpy() with __builtin_memcpy(), which KASAN, KCSAN and KMSAN are able to replace even in -ffreestanding mode. This preserves the behavior in normal builds (__builtin_memcpy() ends up being replaced with memcpy()), and does not introduce new instrumentation in unwanted places, as strlcpy/strlcat are already instrumented. Suggested-by: Marco Elver <elver@google.com> Signed-off-by: Alexander Potapenko <glider@google.com> Reviewed-by: Marco Elver <elver@google.com> Link: https://lore.kernel.org/all/20230224085942.1791837-1-elver@google.com/ Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20230530083911.1104336-1-glider@google.com		2023-06-01 11:24:50 -07:00
..
842	…
crypto	modules-6.4-rc1	2023-04-27 16:36:55 -07:00
dim	linux/dim: Do nothing if no time delta between samples	2023-05-09 11:06:45 +02:00
fonts	lib/fonts: fix undefined behavior in bit shift for get_default_font	2022-11-18 13:55:09 -08:00
kunit	kunit: add tests for using current KUnit test field	2023-04-05 12:51:30 -06:00
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	math64: favor kernel-doc from header files	2022-11-21 14:30:53 -07:00
mpi	lib/mpi: Fix buffer overrun when SG is too long	2023-01-06 17:15:46 +08:00
pldmfw	lib: remove MODULE_LICENSE in non-modules	2023-04-13 13:13:53 -07:00
raid6	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
reed_solomon	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
test_fortify	…
vdso	vdso: Improve cmd_vdso_check to check all dynamic relocations	2023-03-21 21:15:34 +01:00
xz	…
zlib_deflate	lib/zlib: DFLTCC deflate does not write all available bits for Z_NO_FLUSH	2023-02-27 17:00:14 -08:00
zlib_dfltcc	lib/zlib: remove redundation assignement of avail_in dfltcc_gdht()	2023-02-02 22:50:10 -08:00
zlib_inflate	lib/zlib: Split deflate and inflate states for DFLTCC	2023-02-02 22:50:09 -08:00
zstd	zstd: Fix definition of assert()	2023-03-06 15:54:54 -08:00
.gitignore	…
Kconfig	Kconfig: introduce HAS_IOPORT option and select it as necessary	2023-04-05 22:15:19 +02:00
Kconfig.debug	string: Add Kunit tests for strcat() family	2023-05-16 14:08:02 -07:00
Kconfig.kasan	kasan: treat meminstrinsic as builtins in uninstrumented files	2023-03-02 21:54:22 -08:00
Kconfig.kcsan	Kernel concurrency sanitizer (KCSAN) updates for v6.3	2023-02-25 13:02:20 -08:00
Kconfig.kfence	…
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: remove cc-option test for UBSAN_TRAP	2023-05-17 12:01:54 -07:00
Makefile	string: Add Kunit tests for strcat() family	2023-05-16 14:08:02 -07:00
argv_split.c	…
ashldi3.c	…
ashrdi3.c	…
asn1_decoder.c	…
asn1_encoder.c	…
assoc_array.c	assoc_array: Fix BUG_ON during garbage collect	2022-06-01 18:29:06 -07:00
atomic64.c	…
atomic64_test.c	…
audit.c	…
base64.c	lib/base64: RFC4648-compliant base64 encoding	2022-08-02 17:14:47 -06:00
bcd.c	…
bch.c	…
bitfield_kunit.c	…
bitmap.c	lib/bitmap: remove bitmap_ord_to_pos	2022-09-26 12:19:12 -07:00
bitrev.c	…
bootconfig-data.S	…
bootconfig.c	…
bsearch.c	…
btree.c	btree: remove MODULE_LICENSE in non-modules	2023-04-13 13:13:54 -07:00
bucket_locks.c	…
bug.c	cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG	2023-01-31 15:01:45 +01:00
build_OID_registry	…
buildid.c	ELF: fix all "Elf" typos	2023-04-08 13:45:37 -07:00
bust_spinlocks.c	kernel/panic: Drop unblank_screen call	2022-09-01 16:55:35 +02:00
check_signature.c	…
checksum.c	…
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	…
cpu_rmap.c	lib: cpu_rmap: Add irq_cpu_rmap_remove to complement irq_cpu_rmap_add	2023-03-24 16:04:21 -07:00
cpumask.c	lib/cpumask: update comment for cpumask_local_spread()	2023-02-07 18:20:00 -08:00
cpumask_kunit.c	cpumask: re-introduce constant-sized cpumask optimizations	2023-03-05 14:30:34 -08:00
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	…
crc4.c	…
crc7.c	…
crc8.c	…
crc16.c	…
crc32.c	…
crc32defs.h	…
crc32test.c	…
crc64-rocksoft.c	…
crc64.c	…
ctype.c	…
debug_info.c	…
debug_locks.c	…
debugobjects.c	debugobject: Ensure pool refill (again)	2023-05-02 10:07:04 +02:00
dec_and_lock.c	perf: Fix perf_event_pmu_context serialization	2023-01-31 20:37:18 +01:00
decompress.c	…
decompress_bunzip2.c	…
decompress_inflate.c	…
decompress_unlz4.c	…
decompress_unlzma.c	…
decompress_unlzo.c	…
decompress_unxz.c	…
decompress_unzstd.c	…
devmem_is_allowed.c	…
devres.c	devres: remove devm_ioremap_np	2022-09-01 18:04:43 +02:00
dhry.h	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
dhry_1.c	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
dhry_2.c	lib: add Dhrystone benchmark test	2023-02-02 22:50:01 -08:00
dhry_run.c	lib: dhry: fix unstable smp_processor_id(_) usage	2023-03-23 17:18:35 -07:00
digsig.c	…
dump_stack.c	…
dynamic_debug.c	dyndbg: use the module notifier callbacks	2023-03-09 12:58:36 -08:00
dynamic_queue_limits.c	…
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	2023-02-15 15:44:43 +01:00
error-inject.c	error-injection: remove EI_ETYPE_NONE	2023-02-02 22:50:00 -08:00
errseq.c	…
extable.c	…
fault-inject-usercopy.c	…
fault-inject.c	fault-inject: allow configuration via configfs	2023-04-13 07:38:54 -06:00
fdt.c	…
fdt_addresses.c	…
fdt_empty_tree.c	…
fdt_ro.c	…
fdt_rw.c	…
fdt_strerror.c	…
fdt_sw.c	…
fdt_wip.c	…
find_bit.c	cpumask: introduce for_each_cpu_or	2023-03-19 10:02:04 -07:00
find_bit_benchmark.c	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
flex_proportions.c	flex_proportions: Disable preemption entering the write section.	2022-09-19 14:35:08 +02:00
fortify_kunit.c	fortify: Allow KUnit test to build without FORTIFY	2023-05-16 14:07:49 -07:00
gen_crc32table.c	…
gen_crc64table.c	…
genalloc.c	lib/genalloc: use try_cmpxchg in {set,clear}_bits_ll	2023-02-02 22:50:05 -08:00
generic-radix-tree.c	…
glob.c	…
globtest.c	…
group_cpus.c	lib/group_cpus: Export group_cpus_evenly()	2023-04-21 03:02:31 -04:00
hashtable_test.c	lib/hashtable_test.c: add test for the hashtable structure	2023-02-08 14:28:17 -07:00
hexdump.c	…
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: Add a utility to iterate over spans in an interval tree	2022-11-29 16:34:15 -04:00
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	mm: hwpoison: coredump: support recovery from dump_user_range()	2023-05-02 17:21:50 -07:00
irq_poll.c	…
irq_regs.c	…
is_signed_type_kunit.c	lib: assume char is unsigned	2022-11-19 00:56:15 +01:00
is_single_threaded.c	…
kasprintf.c	…
kfifo.c	…
klist.c	…
kobject.c	kobject: align stacktrace levels to logging message	2023-03-17 15:15:23 +01:00
kobject_uevent.c	…
kstrtox.c	…
kstrtox.h	…
libcrc32c.c	libcrc32c: remove crc32c_impl	2023-04-17 18:01:23 +02:00
linear_ranges.c	…
list-test.c	list: test: Test the klist structure	2023-03-31 09:21:35 -06:00
list_debug.c	lib/list_debug.c: Detect uninitialized lists	2022-06-16 19:58:20 -07:00
list_sort.c	…
llist.c	llist: avoid extra memory read in llist_add_batch	2022-11-18 13:55:06 -08:00
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	…
lockref.c	lockref: stop doing cpu_relax in the cmpxchg loop	2023-01-13 14:35:38 -06:00
logic_iomem.c	…
logic_pio.c	…
lru_cache.c	lru_cache: remove unused lc_private, lc_set, lc_index_of	2022-11-22 19:38:39 -07:00
lshrdi3.c	…
maple_tree.c	maple_tree: fix allocation in mas_sparse_area()	2023-04-21 14:52:04 -07:00
memcat_p.c	…
memcpy_kunit.c	kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST	2023-01-25 12:24:40 -08:00
memory-notifier-error-inject.c	…
memregion.c	…
memweight.c	…
muldi3.c	…
net_utils.c	mac_pton: Don't access memory over expected length	2022-11-09 19:28:02 -08:00
netdev-notifier-error-inject.c	…
nlattr.c	netlink: prevent potential spectre v1 gadgets	2023-01-20 17:52:32 -08:00
nmi_backtrace.c	x86/nmi: Print reasons why backtrace NMIs are ignored	2023-01-19 15:55:12 -08:00
notifier-error-inject.c	lib/notifier-error-inject: fix error when writing -errno to debugfs file	2022-11-30 16:13:16 -08:00
notifier-error-inject.h	…
objagg.c	…
of-reconfig-notifier-error-inject.c	…
oid_registry.c	lib/oid_registry.c: remove redundant assignment to variable num	2022-11-18 13:55:06 -08:00
once.c	once: rename _SLOW to _SLEEPABLE	2022-10-03 17:34:32 -07:00
overflow_kunit.c	overflow: Add struct_size_t() helper	2023-05-26 13:52:19 -07:00
packing.c	lib: packing: remove MODULE_LICENSE in non-modules	2023-03-09 23:08:04 -08:00
parman.c	…
parser.c	lib: parser: update documentation for match_NUMBER functions	2023-03-02 21:54:22 -08:00
pci_iomap.c	…
percpu-refcount.c	percpu-refcount: Use call_rcu_hurry() for atomic switch	2022-11-30 13:16:40 -08:00
percpu_counter.c	pcpcntr: remove percpu_counter_sum_all()	2023-03-19 10:02:04 -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.c: fix uninitialized variable compilation warning	2022-11-30 16:13:17 -08:00
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/rbtree: use '+' instead of '|' for setting color.	2023-04-18 16:39:33 -07:00
rbtree_test.c	…
rcuref.c	atomics: Provide rcuref - scalable reference counting	2023-03-28 10:39:29 +02:00
ref_tracker.c	…
refcount.c	…
rhashtable.c	rhashtable: Allow rhashtable to be used from irq-safe contexts	2022-12-09 10:42:56 +00:00
sbitmap.c	sbitmap: correct wake_batch recalculation to avoid potential IO hung	2023-01-29 20:03:01 -07:00
scatterlist.c	lib/scatterlist: Fix to calculate the last_pg properly	2023-01-16 12:08:31 -04:00
seq_buf.c	seq_buf: Add seq_buf_do_printk() helper	2023-04-25 21:03:14 -04:00
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	lib/show_mem.c: use for_each_populated_zone() simplify code	2023-04-21 14:52:02 -07:00
siphash.c	SPDX changes for 5.19-rc1	2022-06-03 10:34:34 -07:00
siphash_kunit.c	siphash: Convert selftest to KUnit	2022-11-01 10:04:52 -07:00
slub_kunit.c	linux-kselftest-kunit-next-6.2-rc1	2022-12-12 16:42:57 -08:00
smp_processor_id.c	lib/smp_processor_id: fix imbalanced instrumentation_end() call	2022-07-17 17:31:41 -07:00
sort.c	…
stackdepot.c	lib/stackdepot: kmsan: mark API outputs as initialized	2023-03-28 16:20:13 -07:00
stackinit_kunit.c	kernel/range: Uplevel the cxl subsystem's range_contains() helper	2023-02-10 17:32:37 -08:00
stmp_device.c	…
strcat_kunit.c	string: Add Kunit tests for strcat() family	2023-05-16 14:08:02 -07:00
string.c	string: use __builtin_memcpy() in strlcpy/strlcat	2023-06-01 11:24:50 -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	…
strnlen_user.c	…
strscpy_kunit.c	fortify: Short-circuit known-safe calls to strscpy()	2022-11-01 10:04:52 -07:00
syscall.c	…
test-kstrtox.c	…
test-string_helpers.c	lib/test-string_helpers: replace UNESCAPE_ANY by UNESCAPE_ALL_MASK	2023-04-08 13:45:39 -07:00
test_bitmap.c	lib/bitmap: add tests for for_each() loops	2022-10-01 10:22:58 -07:00
test_bitops.c	…
test_bits.c	…
test_blackhole_dev.c	…
test_bpf.c	net: remove skb->vlan_present	2022-11-11 18:18:05 -08:00
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: Use kstrtobool() instead of strtobool()	2023-01-20 14:09:47 +01:00
test_fprobe.c	tracing updates for 6.4:	2023-04-28 15:57:53 -07:00
test_fpu.c	…
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_hexdump.c	treewide: use get_random_u32_inclusive() when possible	2022-11-18 02:18:02 +01:00
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	test_kmod: stop kernel-doc warnings	2023-01-25 14:07:21 -08:00
test_kprobes.c	test_kprobes: Add recursed kprobe test case	2023-02-21 08:52:42 +09:00
test_linear_ranges.c	lib/test_linear_ranges: Use LINEAR_RANGE()	2022-11-16 13:32:32 +00:00
test_list_sort.c	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
test_lockup.c	…
test_maple_tree.c	test_maple_tree: add more testing for mas_empty_area()	2023-03-23 17:18:32 -07:00
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	mm, printk: introduce new format %pGt for page_type	2023-03-28 16:20:09 -07:00
test_ref_tracker.c	…
test_rhashtable.c	Networking changes for 6.2.	2022-12-13 15:47:48 -08:00
test_scanf.c	…
test_sort.c	…
test_static_key_base.c	…
test_static_keys.c	…
test_string.c	…
test_sysctl.c	testing: use the copyleft-next-0.3.1 SPDX tag	2022-11-08 15:44:02 +01:00
test_ubsan.c	…
test_user_copy.c	…
test_uuid.c	…
test_vmalloc.c	- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of	2023-04-27 19:42:02 -07:00
test_xarray.c	…
textsearch.c	…
timerqueue.c	…
trace_readwrite.c	asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info	2022-11-21 22:02:10 +01:00
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	…
ts_kmp.c	…
ubsan.c	ubsan: add prototypes for internal functions	2023-05-30 16:42:01 -07:00
ubsan.h	ubsan: add prototypes for internal functions	2023-05-30 16:42:01 -07:00
ucmpdi2.c	…
ucs2_string.c	…
usercopy.c	uaccess: Add speculation barrier to copy_from_user()	2023-02-21 14:45:22 -08:00
uuid.c	treewide: use get_random_bytes() when possible	2022-10-11 17:42:58 -06:00
vsprintf.c	- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of	2023-04-27 19:42:02 -07:00
win_minmax.c	lib/win_minmax: use /* notation for regular comments	2023-01-11 16:14:21 -08:00
xarray.c	mm/huge_memory: Fix xarray node memory leak	2022-06-09 16:24:25 -04:00
xxhash.c	…