Tetsuo Handa 173e191012 debugobjects: Recheck debug_objects_enabled before reporting ... [ Upstream commit 8b64d420fe ] syzbot is reporting false a positive ODEBUG message immediately after ODEBUG was disabled due to OOM. [ 1062.309646][T22911] ODEBUG: Out of memory. ODEBUG disabled [ 1062.886755][ T5171] ------------[ cut here ]------------ [ 1062.892770][ T5171] ODEBUG: assert_init not available (active state 0) object: ffffc900056afb20 object type: timer_list hint: process_timeout+0x0/0x40 CPU 0 [ T5171] CPU 1 [T22911] -------------- -------------- debug_object_assert_init() { if (!debug_objects_enabled) return; db = get_bucket(addr); lookup_object_or_alloc() { debug_objects_enabled = 0; return NULL; } debug_objects_oom() { pr_warn("Out of memory. ODEBUG disabled\n"); // all buckets get emptied here, and } lookup_object_or_alloc(addr, db, descr, false, true) { // this bucket is already empty. return ERR_PTR(-ENOENT); } // Emits false positive warning. debug_print_object(&o, "assert_init"); } Recheck debug_object_enabled in debug_print_object() to avoid that. Reported-by: syzbot <syzbot+7937ba6a50bdd00fffdf@syzkaller.appspotmail.com> Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/492fe2ae-5141-d548-ebd5-62f5fe2e57f7@I-love.SAKURA.ne.jp Closes: https://syzkaller.appspot.com/bug?extid=7937ba6a50bdd00fffdf Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-03-01 13:21:54 +01:00
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842	…
crypto	crypto: lib - remove unneeded selection of XOR_BLOCKS	2022-09-05 10:30:03 +02:00
dim	linux/dim: Do nothing if no time delta between samples	2023-05-24 17:36:41 +01:00
fonts	lib/fonts: fix undefined behavior in bit shift for get_default_font	2022-12-31 13:14:02 +01:00
kunit	kunit: debugfs: Fix unchecked dereference in debugfs_print_results()	2024-01-25 14:52:34 -08:00
livepatch	selftests/livepatch: better synchronize test_klp_callbacks_busy	2022-08-17 14:24:03 +02:00
lz4	…
lzo	…
math	…
mpi	crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init	2024-02-23 08:55:11 +01:00
pldmfw	…
raid6	…
reed_solomon	…
vdso	lib/vdso: use "grep -E" instead of "egrep"	2022-12-02 17:41:08 +01:00
xz	…
zlib_deflate	…
zlib_dfltcc	…
zlib_inflate	…
zstd	…
.gitignore	…
Kconfig	…
Kconfig.debug	lib/Kconfig.debug: do not enable DEBUG_PREEMPT by default	2023-10-25 11:58:54 +02:00
Kconfig.kasan	…
Kconfig.kcsan	…
Kconfig.kfence	…
Kconfig.kgdb	…
Kconfig.ubsan	…
Makefile	…
argv_split.c	…
ashldi3.c	…
ashrdi3.c	…
asn1_decoder.c	…
asn1_encoder.c	…
assoc_array.c	…
atomic64.c	…
atomic64_test.c	…
audit.c	…
bcd.c	…
bch.c	…
bitfield_kunit.c	…
bitmap.c	…
bitrev.c	…
bootconfig.c	…
bsearch.c	…
btree.c	…
bucket_locks.c	…
bug.c	…
build_OID_registry	…
buildid.c	…
bust_spinlocks.c	…
check_signature.c	…
checksum.c	…
clz_ctz.c	lib/clz_ctz.c: Fix __clzdi2() and __ctzdi2() for 32-bit kernels	2023-08-30 16:18:18 +02:00
clz_tab.c	…
cmdline.c	…
cmdline_kunit.c	…
cmpdi2.c	…
compat_audit.c	…
cpu_rmap.c	lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release()	2023-06-14 11:13:04 +02:00
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	…
debug_locks.c	…
debugobjects.c	debugobjects: Recheck debug_objects_enabled before reporting	2024-03-01 13:21:54 +01:00
dec_and_lock.c	…
decompress.c	…
decompress_bunzip2.c	…
decompress_inflate.c	…
decompress_unlz4.c	…
decompress_unlzma.c	…
decompress_unlzo.c	…
decompress_unxz.c	…
decompress_unzstd.c	…
devmem_is_allowed.c	…
devres.c	…
digsig.c	…
dump_stack.c	…
dynamic_debug.c	dyndbg: drop EXPORTed dynamic_debug_exec_queries	2022-10-26 12:35:08 +02:00
dynamic_queue_limits.c	…
earlycpio.c	…
errname.c	parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes	2023-12-08 08:48:02 +01:00
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	ida: Fix crash in ida_free when the bitmap is empty	2024-01-25 14:52:30 -08:00
inflate.c	…
interval_tree.c	…
interval_tree_test.c	…
iomap.c	…
iomap_copy.c	…
iommu-helper.c	…
iov_iter.c	…
irq_poll.c	…
irq_regs.c	…
is_single_threaded.c	…
kasprintf.c	…
kfifo.c	…
klist.c	…
kobject.c	kobject: Add sanity check for kset->kobj.ktype in kset_register()	2023-09-23 11:09:59 +02:00
kobject_uevent.c	…
kstrtox.c	…
kstrtox.h	…
libcrc32c.c	…
linear_ranges.c	…
list-test.c	…
list_debug.c	lib/list_debug.c: Detect uninitialized lists	2022-08-25 11:40:40 +02:00
list_sort.c	…
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	lockref: stop doing cpu_relax in the cmpxchg loop	2023-02-01 08:27:19 +01:00
logic_iomem.c	…
logic_pio.c	…
lru_cache.c	…
lshrdi3.c	…
memcat_p.c	…
memneq.c	…
memory-notifier-error-inject.c	…
memregion.c	…
memweight.c	…
muldi3.c	…
net_utils.c	…
netdev-notifier-error-inject.c	…
nlattr.c	netlink: prevent potential spectre v1 gadgets	2023-02-01 08:27:26 +01:00
nmi_backtrace.c	…
nodemask.c	…
notifier-error-inject.c	lib/notifier-error-inject: fix error when writing -errno to debugfs file	2022-12-31 13:14:03 +01:00
notifier-error-inject.h	…
objagg.c	…
of-reconfig-notifier-error-inject.c	…
oid_registry.c	…
once.c	once: add DO_ONCE_SLOW() for sleepable contexts	2022-10-26 12:34:49 +02:00
packing.c	…
parman.c	…
parser.c	…
pci_iomap.c	…
percpu-refcount.c	…
percpu_counter.c	…
percpu_test.c	…
plist.c	…
pm-notifier-error-inject.c	…
radix-tree.c	radix tree: remove unused variable	2023-08-30 16:18:18 +02:00
random32.c	…
ratelimit.c	ratelimit: Fix data-races in ___ratelimit().	2022-08-31 17:16:43 +02:00
rbtree.c	…
rbtree_test.c	…
refcount.c	…
rhashtable.c	…
sbitmap.c	…
scatterlist.c	…
seq_buf.c	…
sg_pool.c	…
sg_split.c	…
sha1.c	…
show_mem.c	…
siphash.c	…
slub_kunit.c	…
smp_processor_id.c	lib/smp_processor_id: fix imbalanced instrumentation_end() call	2022-08-17 14:24:08 +02:00
sort.c	…
stackdepot.c	…
stmp_device.c	…
string.c	…
string_helpers.c	…
strncpy_from_user.c	…
strnlen_user.c	…
syscall.c	…
test-kstrtox.c	…
test-string_helpers.c	…
test_bitmap.c	…
test_bitops.c	…
test_bits.c	…
test_blackhole_dev.c	…
test_bpf.c	test_bpf: fix incorrect netdev features	2022-08-17 14:23:23 +02:00
test_debug_virtual.c	…
test_firmware.c	test_firmware: return ENOMEM instead of ENOSPC on failed memory allocation	2023-07-23 13:47:25 +02:00
test_fpu.c	…
test_free_pages.c	…
test_hash.c	…
test_hexdump.c	…
test_hmm.c	lib/test_hmm: avoid accessing uninitialized pages	2022-08-17 14:23:43 +02:00
test_hmm_uapi.h	…
test_ida.c	ida: Fix crash in ida_free when the bitmap is empty	2024-01-25 14:52:30 -08:00
test_kasan.c	…
test_kasan_module.c	…
test_kmod.c	…
test_linear_ranges.c	…
test_list_sort.c	…
test_lockup.c	…
test_memcat_p.c	…
test_meminit.c	lib/test_meminit: fix off-by-one error in test_pages()	2023-10-19 23:05:33 +02:00
test_min_heap.c	…
test_module.c	…
test_objagg.c	…
test_overflow.c	overflow: Implement size_t saturating arithmetic helpers	2022-12-31 13:14:33 +01:00
test_parman.c	…
test_printf.c	…
test_rhashtable.c	…
test_scanf.c	lib: test_scanf: Add explicit type cast to result initialization in test_number_prefix()	2023-09-19 12:23:01 +02:00
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	…
test_user_copy.c	…
test_uuid.c	…
test_vmalloc.c	…
test_xarray.c	…
textsearch.c	…
timerqueue.c	…
ts_bm.c	lib/ts_bm: reset initial match offset for every block of text	2023-07-23 13:46:56 +02:00
ts_fsm.c	…
ts_kmp.c	…
ubsan.c	panic: Consolidate open-coded panic_on_warn checks	2023-02-01 08:27:22 +01:00
ubsan.h	…
ucmpdi2.c	…
ucs2_string.c	…
usercopy.c	uaccess: Add speculation barrier to copy_from_user()	2023-02-25 12:06:44 +01:00
uuid.c	…
vsprintf.c	lib/vsprintf: Fix %pfwf when current node refcount == 0	2024-01-05 15:13:35 +01:00
win_minmax.c	…
xarray.c	…
xxhash.c	…