Stephen Boyd 792702911f slub: force on no_hash_pointers when slub_debug is enabled ... Obscuring the pointers that slub shows when debugging makes for some confusing slub debug messages: Padding overwritten. 0x0000000079f0674a-0x000000000d4dce17 Those addresses are hashed for kernel security reasons. If we're trying to be secure with slub_debug on the commandline we have some big problems given that we dump whole chunks of kernel memory to the kernel logs. Let's force on the no_hash_pointers commandline flag when slub_debug is on the commandline. This makes slub debug messages more meaningful and if by chance a kernel address is in some slub debug object dump we will have a better chance of figuring out what went wrong. Note that we don't use %px in the slub code because we want to reduce the number of places that %px is used in the kernel. This also nicely prints a big fat warning at kernel boot if slub_debug is on the commandline so that we know that this kernel shouldn't be used on production systems. [akpm@linux-foundation.org: fix build with CONFIG_SLUB_DEBUG=n] Link: https://lkml.kernel.org/r/20210601182202.3011020-5-swboyd@chromium.org Signed-off-by: Stephen Boyd <swboyd@chromium.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Acked-by: Petr Mladek <pmladek@suse.com> Cc: Joe Perches <joe@perches.com> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2021-06-29 10:53:47 -07:00
..
842	…
crypto	crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c	2021-04-22 17:31:29 +10:00
dim	Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"	2020-11-18 14:15:17 -06:00
fonts	Fonts: font_ter16x32: Update font with new upstream Terminus release	2021-01-07 21:06:25 +01:00
kunit	kunit: make test->lock irq safe	2021-06-29 10:53:46 -07:00
livepatch	…
lz4	lib/lz4: explicitly support in-place decompression	2020-12-15 22:46:16 -08:00
lzo	lib/lzo/lzo1x_compress.c: make lzogeneric1x_1_compress() static	2020-12-15 22:46:19 -08:00
math	- removed get_fs/set_fs	2021-04-29 11:28:08 -07:00
mpi	…
pldmfw	…
raid6	lib/raid6: Let $(UNROLL) rules work with macOS userland	2021-01-04 10:38:11 +09:00
reed_solomon	…
vdso	lib/vdso: Add vdso_data pointer as input to __arch_get_timens_vdso_data()	2021-04-14 23:04:44 +10:00
xz	Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"	2020-11-18 14:15:17 -06:00
zlib_deflate	…
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: Fix fall-through warnings for Clang	2020-11-19 07:23:47 -06:00
zstd	lib: Fix fall-through warnings for Clang	2020-11-19 07:23:47 -06:00
.gitignore	.gitignore: prefix local generated files with a slash	2021-05-02 00:43:35 +09:00
Kconfig	lib: Add ASN.1 encoder	2021-04-14 16:30:30 +03:00
Kconfig.debug	mm/slub, kunit: add a KUnit test for SLUB debugging functionality	2021-06-29 10:53:46 -07:00
Kconfig.kasan	kasan: remove redundant config option	2021-04-16 16:10:36 -07:00
Kconfig.kcsan	kcsan: Make test follow KUnit style recommendations	2021-03-08 14:27:43 -08:00
Kconfig.kfence	kfence: await for allocation using wait_event	2021-05-05 11:27:27 -07:00
Kconfig.kgdb	…
Kconfig.ubsan	ubsan: remove overflow checks	2021-02-26 09:41:05 -08:00
Makefile	mm/slub, kunit: add a KUnit test for SLUB debugging functionality	2021-06-29 10:53:46 -07:00
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: Add ASN.1 encoder	2021-04-14 16:30:30 +03:00
assoc_array.c	Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"	2020-11-18 14:15:17 -06:00
atomic64.c	…
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 v5.13	2021-05-05 12:39:29 -07:00
bitrev.c	…
bootconfig.c	Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"	2020-11-18 14:15:17 -06:00
bsearch.c	…
btree.c	…
bucket_locks.c	…
bug.c	bug: Assign values once in bug_get_file_line()	2021-04-01 09:54:37 +01:00
build_OID_registry	…
buildid.c	bpf: Add size arg to build_id_parse function	2021-01-14 19:29:58 -08:00
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: Allow get_options() to take 0 to validate the input	2021-02-15 11:43:31 +01:00
cmpdi2.c	…
compat_audit.c	…
cpu_rmap.c	…
cpumask.c	Revert "lib: Restrict cpumask_local_spread to houskeeping CPUs"	2021-02-05 23:28:29 +01:00
crc-ccitt.c	…
crc-itu-t.c	…
crc-t10dif.c	…
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	…
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	…
decompress_inflate.c	…
decompress_unlz4.c	…
decompress_unlzma.c	lib: fix inconsistent indenting in process_bit1()	2021-05-06 19:24:12 -07:00
decompress_unlzo.c	…
decompress_unxz.c	…
decompress_unzstd.c	…
devmem_is_allowed.c	lib: Add a generic version of devmem_is_allowed()	2020-12-11 12:28:08 -08:00
devres.c	asm-generic/io.h: Add a non-posted variant of ioremap()	2021-04-08 20:18:38 +09:00
digsig.c	crypto: sha - split sha.h into sha1.h and sha2.h	2020-11-20 14:45:33 +11:00
dump_stack.c	…
dynamic_debug.c	dyndbg: drop uninformative vpr_info	2021-05-13 20:50:23 +02:00
dynamic_queue_limits.c	…
earlycpio.c	lib: remove "expecting prototype" kernel-doc warnings	2021-04-16 16:10:37 -07:00
errname.c	kernel.h: split out mathematical helpers	2020-12-15 22:46:15 -08:00
error-inject.c	fault-injection: handle EI_ETYPE_TRUE	2020-12-15 22:46:19 -08:00
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	…
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	Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"	2020-11-18 14:15:17 -06:00
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: lift memzero_page() to highmem.h	2021-05-05 11:27:27 -07:00
irq_poll.c	…
irq_regs.c	…
is_single_threaded.c	…
kasprintf.c	…
kfifo.c	…
klist.c	…
kobject.c	…
kobject_uevent.c	kobject_uevent: remove warning in init_uevent_argv()	2021-04-10 11:09:41 +02:00
kstrtox.c	lib: Fix fall-through warnings for Clang	2020-11-19 07:23:47 -06:00
kstrtox.h	…
libcrc32c.c	…
linear_ranges.c	lib/linear_ranges: fix repeated words & one typo	2020-12-28 12:24:47 +00:00
list-test.c	…
list_debug.c	…
list_sort.c	lib/list_sort.c: fix typo in function description	2021-05-06 19:24:12 -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	locking/selftests: Add local_lock inversion tests	2021-01-14 11:20:18 +01:00
lockref.c	…
logic_pio.c	PCI: Fix pci_register_io_range() memory leak	2021-02-17 17:31:06 -06:00
lru_cache.c	lib: remove "expecting prototype" kernel-doc warnings	2021-04-16 16:10:37 -07:00
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	net: fix nla_strcmp to handle more then one trailing null character	2021-05-05 12:48:46 -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	x509: Detect sm2 keys by their parameters OID	2021-03-26 19:41:58 +11:00
once.c	…
packing.c	…
parman.c	lib: remove "expecting prototype" kernel-doc warnings	2021-04-16 16:10:37 -07:00
parser.c	lib: parser: clean up kernel-doc	2021-05-06 19:24:12 -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	lib: remove "expecting prototype" kernel-doc warnings	2021-04-16 16:10:37 -07:00
random32.c	…
ratelimit.c	…
rbtree.c	…
rbtree_test.c	…
refcount.c	…
rhashtable.c	…
sbitmap.c	scsi: sbitmap: Add sbitmap_calculate_shift() helper	2021-03-04 17:36:59 -05:00
scatterlist.c	…
seq_buf.c	…
sg_pool.c	…
sg_split.c	…
sha1.c	crypto: sha - split sha.h into sha1.h and sha2.h	2020-11-20 14:45:33 +11:00
show_mem.c	…
siphash.c	Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"	2020-11-18 14:15:17 -06:00
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	sched: Make migrate_disable/enable() independent of RT	2020-11-24 11:25:44 +01:00
sort.c	…
stackdepot.c	lib: stackdepot: turn depot_lock spinlock to raw_spinlock	2021-05-06 19:24:12 -07:00
stmp_device.c	…
string.c	lib/string: remove unnecessary #undefs	2020-12-15 22:46:16 -08:00
string_helpers.c	…
strncpy_from_user.c	lib/strncpy_from_user.c: Mask out bytes after NUL terminator.	2020-11-19 11:56:16 -08:00
strnlen_user.c	…
syscall.c	lib/syscall: fix syscall registers retrieval on 32-bit platforms	2020-12-03 09:52:44 -08:00
test-kstrtox.c	…
test-string_helpers.c	…
test_bitmap.c	lib: test_bitmap: add tests for "N" alias	2021-03-08 14:16:58 -08:00
test_bitops.c	…
test_bits.c	…
test_blackhole_dev.c	…
test_bpf.c	test_bpf: Remove EXPECTED_FAIL flag from bpf_fill_maxinsns11	2021-01-20 14:13:48 -08:00
test_debug_virtual.c	…
test_firmware.c	lib: cleanup kstrto*() usage	2020-12-15 22:46:16 -08:00
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: add basic progress indicators	2020-12-15 22:46:16 -08:00
test_hash.c	…
test_hexdump.c	…
test_hmm.c	…
test_hmm_uapi.h	…
test_ida.c	…
test_kasan.c	kasan: fix unit tests with CONFIG_UBSAN_LOCAL_BOUNDS enabled	2021-05-14 19:41:32 -07:00
test_kasan_module.c	lib/test_kasan_module.c: suppress unused var warning	2021-04-09 14:54:23 -07:00
test_kmod.c	lib: cleanup kstrto*() usage	2020-12-15 22:46:16 -08:00
test_linear_ranges.c	…
test_list_sort.c	treewide: Change list_sort to use const pointers	2021-04-08 16:04:22 -07:00
test_lockup.c	lib/test_lockup.c: minimum fix to get it compiled on PREEMPT_RT	2020-12-15 22:46:16 -08:00
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	drm for 5.13-rc1	2021-04-28 10:01:40 -07:00
test_rhashtable.c	rhashtable: avoid -Wrestrict warning on overlapping sprintf output	2021-03-24 15:16:09 -07:00
test_siphash.c	…
test_sort.c	…
test_stackinit.c	…
test_static_key_base.c	…
test_static_keys.c	…
test_string.c	…
test_strscpy.c	…
test_sysctl.c	…
test_ubsan.c	ubsan: remove overflow checks	2021-02-26 09:41:05 -08:00
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	XArray: Fix splitting to non-zero orders	2021-03-30 13:42:33 -04:00
textsearch.c	…
timerqueue.c	rbtree, timerqueue: Use rb_add_cached()	2021-02-17 14:08:01 +01:00
ts_bm.c	…
ts_fsm.c	Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"	2020-11-18 14:15:17 -06:00
ts_kmp.c	…
ubsan.c	ubsan: remove overflow checks	2021-02-26 09:41:05 -08:00
ubsan.h	ubsan: implement __ubsan_handle_alignment_assumption	2021-02-05 11:03:47 -08:00
ucmpdi2.c	…
ucs2_string.c	…
usercopy.c	…
uuid.c	…
vsprintf.c	slub: force on no_hash_pointers when slub_debug is enabled	2021-06-29 10:53:47 -07:00
win_minmax.c	…
xarray.c	XArray: Fix splitting to non-zero orders	2021-03-30 13:42:33 -04:00
xxhash.c	…