Kefeng Wang 1027b96ec9 once: Fix panic when module unload ... DO_ONCE DEFINE_STATIC_KEY_TRUE(___once_key); __do_once_done once_disable_jump(once_key); INIT_WORK(&w->work, once_deferred); struct once_work *w; w->key = key; schedule_work(&w->work); module unload //*the key is destroy* process_one_work once_deferred BUG_ON(!static_key_enabled(work->key)); static_key_count((struct static_key *)x) //*access key, crash* When module uses DO_ONCE mechanism, it could crash due to the above concurrency problem, we could reproduce it with link[1]. Fix it by add/put module refcount in the once work process. [1] https://lore.kernel.org/netdev/eaa6c371-465e-57eb-6be9-f4b16b9d7cbf@huawei.com/ Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: David S. Miller <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Reported-by: Minmin chen <chenmingmin@huawei.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-08-08 13:00:20 +01:00
..
842
crypto	crypto: doc - fix kernel-doc notation in chacha.c and af_alg.c	2021-04-22 17:31:29 +10:00
dim
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	lib/vdso: Add vdso_data pointer as input to __arch_get_timens_vdso_data()	2021-04-14 23:04:44 +10:00
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	bug: Assign values once in bug_get_file_line()	2021-04-01 09:54:37 +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
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
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	lib: remove "expecting prototype" kernel-doc warnings	2021-04-16 16:10:37 -07:00
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	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
kfifo.c	lib: fix spelling mistakes	2021-07-08 11:48:20 -07:00
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	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	lib: remove "expecting prototype" kernel-doc warnings	2021-04-16 16:10:37 -07:00
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	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
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	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	lib/test_kasan_module.c: suppress unused var warning	2021-04-09 14:54:23 -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	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	rhashtable: avoid -Wrestrict warning on overlapping sprintf output	2021-03-24 15:16:09 -07:00
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	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
ts_bm.c
ts_fsm.c
ts_kmp.c
ubsan.c	ubsan: remove overflow checks	2021-02-26 09:41:05 -08:00
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	XArray: Fix splitting to non-zero orders	2021-03-30 13:42:33 -04:00
xxhash.c