Guenter Roeck d27b2dcdb8 string: uninline memcpy_and_pad ... commit 5c4e0a21fa upstream. When building m68k:allmodconfig, recent versions of gcc generate the following error if the length of UTS_RELEASE is less than 8 bytes. In function 'memcpy_and_pad', inlined from 'nvmet_execute_disc_identify' at drivers/nvme/target/discovery.c:268:2: arch/m68k/include/asm/string.h:72:25: error: '__builtin_memcpy' reading 8 bytes from a region of size 7 Discussions around the problem suggest that this only happens if an architecture does not provide strlen(), if -ffreestanding is provided as compiler option, and if CONFIG_FORTIFY_SOURCE=n. All of this is the case for m68k. The exact reasons are unknown, but seem to be related to the ability of the compiler to evaluate the return value of strlen() and the resulting execution flow in memcpy_and_pad(). It would be possible to work around the problem by using sizeof(UTS_RELEASE) instead of strlen(UTS_RELEASE), but that would only postpone the problem until the function is called in a similar way. Uninline memcpy_and_pad() instead to solve the problem for good. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-11-21 13:44:12 +01:00
..
842	…
crypto	crypto: sm4 - Do not change section of ck and sbox	2021-11-18 19:16:23 +01:00
dim	…
fonts	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
kunit	kunit: fix reference count leak in kfree_at_end	2021-10-01 13:49:38 -06:00
livepatch	…
lz4	…
lzo	…
math	math: make RATIONAL tristate	2021-09-08 11:50:26 -07:00
mpi	lib/mpi: use kcalloc in mpi_resize	2021-08-12 19:17:00 +08:00
pldmfw	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
raid6	…
reed_solomon	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
vdso	…
xz	lib/xz: Validate the value before assigning it to an enum variable	2021-11-18 19:16:17 +01:00
zlib_deflate	…
zlib_dfltcc	…
zlib_inflate	lib/zlib_inflate/inffast: check config in C to avoid unused function warning	2021-09-24 16:13:35 -07:00
zstd	…
.gitignore	…
Kconfig	asm-generic changes for 5.15	2021-09-01 15:13:02 -07:00
Kconfig.debug	xtensa: increase size of gcc stack frame check	2021-09-24 16:13:34 -07:00
Kconfig.kasan	kasan: fix Kconfig check of CC_HAS_WORKING_NOSANITIZE_ADDRESS	2021-09-24 16:13:34 -07:00
Kconfig.kcsan	kcsan: Make strict mode imply interruptible watchers	2021-07-20 13:49:44 -07:00
Kconfig.kfence	kfence: default to dynamic branch instead of static keys mode	2021-11-12 15:05:49 +01:00
Kconfig.kgdb	…
Kconfig.ubsan	…
Makefile	bitfield: build kunit tests without structleak plugin	2021-10-06 17:53:54 -06:00
argv_split.c	…
ashldi3.c	…
ashrdi3.c	…
asn1_decoder.c	…
asn1_encoder.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
assoc_array.c	…
atomic64.c	…
atomic64_test.c	…
audit.c	…
bcd.c	…
bch.c	…
bitfield_kunit.c	…
bitmap.c	bitmap: extend comment to bitmap_print_bitmask/list_to_buf	2021-08-13 10:27:50 +02:00
bitrev.c	…
bootconfig.c	memblock: introduce saner 'memblock_free_ptr()' interface	2021-09-14 13:23:22 -07:00
bsearch.c	…
btree.c	…
bucket_locks.c	…
bug.c	…
build_OID_registry	…
buildid.c	kdump: use vmlinux_build_id to simplify	2021-07-08 11:48:22 -07:00
bust_spinlocks.c	…
check_signature.c	…
checksum.c	…
clz_ctz.c	…
clz_tab.c	…
cmdline.c	…
cmdline_kunit.c	…
cmpdi2.c	…
compat_audit.c	…
cpu_rmap.c	…
cpumask.c	…
crc-ccitt.c	…
crc-itu-t.c	…
crc-t10dif.c	…
crc4.c	…
crc7.c	…
crc8.c	…
crc16.c	…
crc32.c	…
crc32defs.h	…
crc32test.c	…
crc64.c	…
ctype.c	…
debug_info.c	isystem: ship and use stdarg.h	2021-08-19 09:02:55 +09:00
debug_locks.c	…
debugobjects.c	debugobjects: Make them PREEMPT_RT aware	2021-08-13 10:07:44 +02:00
dec_and_lock.c	…
decompress.c	…
decompress_bunzip2.c	…
decompress_inflate.c	…
decompress_unlz4.c	…
decompress_unlzma.c	…
decompress_unlzo.c	…
decompress_unxz.c	lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression	2021-11-18 19:16:17 +01:00
decompress_unzstd.c	…
devmem_is_allowed.c	lib: use PFN_PHYS() in devmem_is_allowed()	2021-08-13 14:09:32 -10:00
devres.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
digsig.c	…
dump_stack.c	lib/dump_stack: correct kernel-doc notation	2021-09-08 11:50:26 -07:00
dynamic_debug.c	dyndbg: make dyndbg a known cli param	2021-11-18 19:16:52 +01:00
dynamic_queue_limits.c	…
earlycpio.c	…
errname.c	…
error-inject.c	…
errseq.c	…
extable.c	…
fault-inject-usercopy.c	…
fault-inject.c	…
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	…
find_bit_benchmark.c	…
flex_proportions.c	…
gen_crc32table.c	…
gen_crc64table.c	…
genalloc.c	…
generic-radix-tree.c	…
glob.c	…
globtest.c	…
hexdump.c	…
hweight.c	…
idr.c	…
inflate.c	…
interval_tree.c	…
interval_tree_test.c	…
iomap.c	…
iomap_copy.c	…
iommu-helper.c	…
iov_iter.c	iov_iter: Fix iov_iter_get_pages{,_alloc} page fault return value	2021-11-18 19:16:15 +01:00
irq_poll.c	…
irq_regs.c	…
is_single_threaded.c	…
kasprintf.c	isystem: ship and use stdarg.h	2021-08-19 09:02:55 +09:00
kfifo.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
klist.c	…
kobject.c	…
kobject_uevent.c	…
kstrtox.c	…
kstrtox.h	…
libcrc32c.c	…
linear_ranges.c	lib: add linear range get selector within	2021-08-13 18:37:38 +02:00
list-test.c	…
list_debug.c	…
list_sort.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
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-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	…
logic_iomem.c	lib/logic_iomem: fix sparse warnings	2021-08-26 22:28:02 +02:00
logic_pio.c	…
lru_cache.c	…
lshrdi3.c	…
memcat_p.c	…
memory-notifier-error-inject.c	…
memregion.c	…
memweight.c	…
muldi3.c	…
net_utils.c	…
netdev-notifier-error-inject.c	…
nlattr.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
nmi_backtrace.c	lib/nmi_backtrace: Serialize even messages about idle CPUs	2021-07-30 09:25:34 +02:00
nodemask.c	…
notifier-error-inject.c	…
notifier-error-inject.h	…
objagg.c	…
of-reconfig-notifier-error-inject.c	…
oid_registry.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
once.c	once: Fix panic when module unload	2021-08-08 13:00:20 +01:00
packing.c	net: update NXP copyright text	2021-09-17 13:52:17 +01:00
parman.c	…
parser.c	…
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_counter.c	…
percpu_test.c	…
plist.c	…
pm-notifier-error-inject.c	…
radix-tree.c	…
random32.c	…
ratelimit.c	…
rbtree.c	…
rbtree_test.c	…
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	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
scatterlist.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
seq_buf.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
sg_pool.c	lib/scatterlist: Fix wrong update of orig_nents	2021-08-24 19:52:40 -03:00
sg_split.c	…
sha1.c	…
show_mem.c	…
siphash.c	…
slub_kunit.c	…
smp_processor_id.c	…
sort.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
stackdepot.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
stmp_device.c	…
string.c	string: improve default out-of-line memcmp() implementation	2021-08-30 07:50:56 -07:00
string_helpers.c	string: uninline memcpy_and_pad	2021-11-21 13:44:12 +01:00
strncpy_from_user.c	…
strnlen_user.c	…
syscall.c	…
test-kstrtox.c	…
test-string_helpers.c	string_helpers: Escape double quotes in escape_special	2021-07-19 11:39:28 +02:00
test_bitmap.c	lib: test_bitmap: add bitmap_print_bitmask/list_to_buf test cases	2021-08-13 10:27:49 +02:00
test_bitops.c	lib/test: fix spelling mistakes	2021-07-08 11:48:20 -07:00
test_bits.c	…
test_blackhole_dev.c	…
test_bpf.c	bpf/tests: Fix error in tail call limit tests	2021-11-18 19:16:26 +01:00
test_debug_virtual.c	…
test_firmware.c	…
test_fpu.c	…
test_free_pages.c	…
test_hash.c	…
test_hexdump.c	…
test_hmm.c	lib/test_hmm: remove set but unused page variable	2021-07-15 10:13:49 -07:00
test_hmm_uapi.h	…
test_ida.c	…
test_kasan.c	Merge branch 'akpm' (patches from Andrew)	2021-09-03 10:08:28 -07:00
test_kasan_module.c	kasan: test: avoid corrupting memory in kasan_rcu_uaf	2021-09-03 09:58:15 -07:00
test_kmod.c	lib/test: fix spelling mistakes	2021-07-08 11:48:20 -07:00
test_linear_ranges.c	…
test_list_sort.c	…
test_lockup.c	lib/test_lockup: Adapt to changed variables	2021-08-17 19:05:33 +02:00
test_memcat_p.c	…
test_meminit.c	…
test_min_heap.c	…
test_module.c	…
test_objagg.c	…
test_overflow.c	…
test_parman.c	…
test_printf.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
test_rhashtable.c	…
test_scanf.c	lib/test_scanf: split up number parsing test routines	2021-09-06 11:04:03 -07:00
test_siphash.c	…
test_sort.c	lib/test: convert test_sort.c to use KUnit	2021-09-08 11:50:26 -07:00
test_stackinit.c	lib/test_stackinit: Add assigned initializers	2021-08-22 00:21:36 -07:00
test_static_key_base.c	…
test_static_keys.c	…
test_string.c	…
test_strscpy.c	…
test_sysctl.c	…
test_ubsan.c	…
test_user_copy.c	…
test_uuid.c	…
test_vmalloc.c	lib/test_vmalloc.c: add a new 'nr_pages' parameter	2021-09-03 09:58:14 -07:00
test_xarray.c	…
textsearch.c	…
timerqueue.c	…
ts_bm.c	…
ts_fsm.c	…
ts_kmp.c	…
ubsan.c	kunit: ubsan integration	2021-08-13 13:19:06 -06:00
ubsan.h	…
ucmpdi2.c	…
ucs2_string.c	…
usercopy.c	…
uuid.c	…
vsprintf.c	Merge branch 'akpm' (patches from Andrew)	2021-09-08 12:55:35 -07:00
win_minmax.c	…
xarray.c	…
xxhash.c	…