Liang Wang 854f32648b lib: use PFN_PHYS() in devmem_is_allowed() ... The physical address may exceed 32 bits on 32-bit systems with more than 32 bits of physcial address. Use PFN_PHYS() in devmem_is_allowed(), or the physical address may overflow and be truncated. We found this bug when mapping a high addresses through devmem tool, when CONFIG_STRICT_DEVMEM is enabled on the ARM with ARM_LPAE and devmem is used to map a high address that is not in the iomem address range, an unexpected error indicating no permission is returned. This bug was initially introduced from v2.6.37, and the function was moved to lib in v5.11. Link: https://lkml.kernel.org/r/20210731025057.78825-1-wangliang101@huawei.com Fixes: 087aaffcdf ("ARM: implement CONFIG_STRICT_DEVMEM by disabling access to RAM via /dev/mem") Fixes: 527701eda5 ("lib: Add a generic version of devmem_is_allowed()") Signed-off-by: Liang Wang <wangliang101@huawei.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Palmer Dabbelt <palmerdabbelt@google.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Liang Wang <wangliang101@huawei.com> Cc: Xiaoming Ni <nixiaoming@huawei.com> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: <stable@vger.kernel.org> [2.6.37+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-08-13 14:09:32 -10:00
..
842
crypto
dim
fonts	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
kunit	linux-kselftest-kunit-fixes-5.14-rc1	2021-07-02 12:58:26 -07:00
livepatch
lz4	lz4_decompress: declare LZ4_decompress_safe_withPrefix64k static	2021-07-01 11:06:05 -07:00
lzo
math	lib/math/rational: add Kunit test cases	2021-07-01 11:06:05 -07:00
mpi	lib/mpi: fix spelling mistakes	2021-07-01 11:06:05 -07:00
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/decompressors: fix spelling mistakes	2021-07-01 11:06:05 -07:00
zlib_deflate
zlib_dfltcc
zlib_inflate	lib/decompressors: fix spelling mistakes	2021-07-01 11:06:05 -07:00
zstd	lib/decompressors: fix spelling mistakes	2021-07-01 11:06:05 -07:00
.gitignore	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
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	locking/atomic: atomic64: support ARCH_ATOMIC	2021-05-26 13:20:50 +02:00
atomic64_test.c
audit.c
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
bitmap.c	gpio: updates for v5.14	2021-07-05 11:48:14 -07:00
bitrev.c
bootconfig.c	bootconfig: Support mixing a value and subkeys under a key	2021-06-10 13:41:26 -04:00
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	lib/cmdline: Export next_arg() for being used in modules	2021-05-05 16:07:40 +02:00
cmdline_kunit.c	lib/cmdline_kunit: Remove a cast which are no-longer required	2021-06-23 16:41:41 -06:00
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	lib: crc8: pointer to data block should be const	2021-05-06 19:24:12 -07:00
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64.c	lib: crc64: fix kernel-doc warning	2021-06-05 08:58:12 -07:00
ctype.c
debug_info.c
debug_locks.c	locking/lockdep: Improve noinstr vs errors	2021-06-22 13:56:43 +02:00
debugobjects.c
dec_and_lock.c
decompress.c
decompress_bunzip2.c	lib/decompressors: fix spelling mistakes	2021-07-01 11:06:05 -07:00
decompress_inflate.c
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/decompressors: fix spelling mistakes	2021-07-01 11:06:05 -07:00
decompress_unzstd.c	lib/decompressors: fix spelling mistakes	2021-07-01 11:06:05 -07:00
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	dump_stack: add vmlinux build ID to stack traces	2021-07-08 11:48:22 -07:00
dynamic_debug.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
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	lib: add fast path for find_first_*_bit() and find_last_bit()	2021-05-06 19:24:12 -07:00
find_bit_benchmark.c
flex_proportions.c
gen_crc32table.c
gen_crc64table.c
genalloc.c	lib/genalloc: add parameter description to fix doc compile warning	2021-05-06 19:24:12 -07:00
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: remove uaccess_kernel() warning from iov_iter_init()	2021-07-04 16:12:42 -07:00
irq_poll.c
irq_regs.c
is_single_threaded.c
kasprintf.c
Kconfig	lib/test_string.c: move string selftest in the Runtime Testing menu	2021-07-30 10:14:39 -07:00
Kconfig.debug	lib/test_string.c: move string selftest in the Runtime Testing menu	2021-07-30 10:14:39 -07:00
Kconfig.kasan	kasan: add memory corruption identification support for hardware tag-based mode	2021-06-29 10:53:53 -07:00
Kconfig.kcsan
Kconfig.kfence	kfence: await for allocation using wait_event	2021-05-05 11:27:27 -07:00
Kconfig.kgdb
Kconfig.ubsan
kfifo.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
klist.c
kobject.c
kobject_uevent.c
kstrtox.c	Merge branch 'akpm' (patches from Andrew)	2021-07-02 12:08:10 -07:00
kstrtox.h	lib: vsprintf: Fix handling of number field widths in vsscanf	2021-05-19 15:05:11 +02:00
libcrc32c.c
linear_ranges.c
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	lockdep/selftest: Remove wait-type RCU_CALLBACK tests	2021-06-22 16:42:08 +02:00
lockref.c
logic_iomem.c	lib: add iomem emulation (logic_iomem)	2021-06-17 21:44:51 +02:00
logic_pio.c
lru_cache.c
lshrdi3.c
Makefile	This pull request contains the following changes for UML:	2021-07-09 10:19:13 -07:00
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
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
parman.c
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
percpu-refcount.c	percpu_ref: Don't opencode percpu_ref_is_dying	2021-05-13 03:27:38 +00:00
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
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	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
seq_buf.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
sg_pool.c
sg_split.c
sha1.c
show_mem.c
siphash.c
slub_kunit.c	mm/slub, kunit: add a KUnit test for SLUB debugging functionality	2021-06-29 10:53:46 -07:00
smp_processor_id.c	lib/smp_processor_id: Use is_percpu_thread() instead of nr_cpus_allowed	2021-05-19 10:51:40 +02:00
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	lib: memscan() fixlet	2021-07-01 11:06:05 -07:00
string_helpers.c	seq_file: drop unused *_escape_mem_ascii()	2021-07-01 11:06:05 -07:00
strncpy_from_user.c
strnlen_user.c
syscall.c	sched: Change task_struct::state	2021-06-18 11:43:09 +02:00
test-kstrtox.c
test-string_helpers.c	lib/test-string_helpers: add test cases for new features	2021-07-01 11:06:05 -07:00
test_bitmap.c	bitmap_parse: Support 'all' semantics	2021-05-10 15:38:20 -07:00
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	lib/test: fix spelling mistakes	2021-07-08 11:48:20 -07:00
test_debug_virtual.c
test_firmware.c	firmware: replace HOTPLUG with UEVENT in FW_ACTION defines	2021-05-13 16:14:45 +02:00
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	mm: selftests for exclusive device memory	2021-07-01 11:06:03 -07:00
test_ida.c
test_kasan.c	lib/test: fix spelling mistakes	2021-07-08 11:48:20 -07:00
test_kasan_module.c
test_kmod.c	lib/test: fix spelling mistakes	2021-07-08 11:48:20 -07:00
test_linear_ranges.c
test_list_sort.c	lib/test: convert lib/test_list_sort.c to use KUnit	2021-06-25 11:31:03 -06:00
test_lockup.c
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	printk changes for 5.14	2021-06-29 12:07:18 -07:00
test_rhashtable.c
test_scanf.c	lib/test: fix spelling mistakes	2021-07-08 11:48:20 -07:00
test_siphash.c
test_sort.c
test_stackinit.c
test_static_key_base.c
test_static_keys.c
test_string.c	lib/test_string.c: allow module removal	2021-07-01 11:06:05 -07:00
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_threads' parameter	2021-04-30 11:20:40 -07:00
test_xarray.c
textsearch.c
timerqueue.c
ts_bm.c
ts_fsm.c
ts_kmp.c
ubsan.c
ubsan.h
ucmpdi2.c
ucs2_string.c
usercopy.c
uuid.c
vsprintf.c	module: add printk formats to add module build ID to stacktraces	2021-07-08 11:48:22 -07:00
win_minmax.c
xarray.c
xxhash.c