Andrzej Hajda b3ae38966d debugobjects: Stop accessing objects after releasing hash bucket lock ... [ Upstream commit 9bb6362652 ] After release of the hashbucket lock the tracking object can be modified or freed by a concurrent thread. Using it in such a case is error prone, even for printing the object state: 1. T1 tries to deactivate destroyed object, debugobjects detects it, hash bucket lock is released. 2. T2 preempts T1 and frees the tracking object. 3. The freed tracking object is allocated and initialized for a different to be tracked kernel object. 4. T1 resumes and reports error for wrong kernel object. Create a local copy of the tracking object before releasing the hash bucket lock and use the local copy for reporting and fixups to prevent this. Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20231025-debugobjects_fix-v3-1-2bc3bf7084c2@intel.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-02-05 20:12:47 +00:00
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842
crypto
dim	linux/dim: Do nothing if no time delta between samples	2023-05-24 17:32:31 +01:00
fonts
kunit	kunit: debugfs: Fix unchecked dereference in debugfs_print_results()	2024-01-25 15:27:21 -08:00
livepatch
lz4
lzo
math
mpi	crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui()	2023-09-23 11:11:02 +02:00
pldmfw
raid6
reed_solomon
test_fortify
vdso
xz
zlib_deflate
zlib_dfltcc
zlib_inflate
zstd	zstd: Fix array-index-out-of-bounds UBSAN warning	2023-12-13 18:39:04 +01:00
.gitignore
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
asn1_encoder.c
assoc_array.c
atomic64.c
atomic64_test.c
audit.c
base64.c
bcd.c
bch.c
bitfield_kunit.c
bitmap.c	lib/bitmap: drop optimization of bitmap_{from,to}_arr64	2023-07-19 16:21:58 +02:00
bitrev.c
bootconfig-data.S
bootconfig.c
bsearch.c
btree.c
bucket_locks.c
bug.c	cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG	2023-03-10 09:33:47 +01:00
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 16:11:08 +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 11:15:22 +02:00
cpumask.c
cpumask_kunit.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-rocksoft.c
crc64.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c	debugobjects: Stop accessing objects after releasing hash bucket lock	2024-02-05 20:12:47 +00:00
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
dynamic_queue_limits.c
earlycpio.c
errname.c	parisc: Drop the HP-UX ENOSYM and EREMOTERELEASE error codes	2023-12-08 08:51:15 +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
fortify_kunit.c
gen_crc32table.c
gen_crc64table.c
genalloc.c
generic-radix-tree.c	lib/generic-radix-tree.c: Don't overflow in peek()	2023-11-28 17:06:54 +00:00
glob.c
globtest.c
group_cpus.c	genirq/affinity: Only build SMP-only helper functions on SMP kernels	2024-01-10 17:10:36 +01:00
hexdump.c
hweight.c
idr.c	ida: Fix crash in ida_free when the bitmap is empty	2024-01-20 11:50:09 +01:00
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_signed_type_kunit.c
is_single_threaded.c
kasprintf.c
Kconfig
Kconfig.debug	btf, scripts: Exclude Rust CUs with pahole	2024-01-20 11:50:10 +01:00
Kconfig.kasan
Kconfig.kcsan
Kconfig.kfence
Kconfig.kgdb
Kconfig.kmsan
Kconfig.ubsan
kfifo.c
klist.c
kobject.c	kobject: Add sanity check for kset->kobj.ktype in kset_register()	2023-09-23 11:11:07 +02:00
kobject_uevent.c
kstrtox.c
kstrtox.h
libcrc32c.c
linear_ranges.c
list-test.c
list_debug.c
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
logic_iomem.c
logic_pio.c
lru_cache.c
lshrdi3.c
Makefile	genirq/affinity: Move group_cpus_evenly() into lib/	2024-01-10 17:10:33 +01:00
maple_tree.c	maple_tree: add GFP_KERNEL to allocations in mas_expected_entries()	2023-11-02 09:35:24 +01:00
memcat_p.c
memcpy_kunit.c
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c
nmi_backtrace.c
notifier-error-inject.c
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c
overflow_kunit.c
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
polynomial.c
radix-tree.c	radix tree: remove unused variable	2023-08-30 16:11:08 +02:00
random32.c
ratelimit.c
rbtree.c
rbtree_test.c
ref_tracker.c
refcount.c
rhashtable.c
sbitmap.c	sbitmap: Try each queue to wake up at least one waiter	2023-03-10 09:34:34 +01:00
scatterlist.c
seq_buf.c
sg_pool.c
sg_split.c
show_mem.c
siphash.c
slub_kunit.c
smp_processor_id.c
sort.c
stackdepot.c
stackinit_kunit.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	lib/bitmap: workaround const_eval test build failure	2023-08-11 12:08:10 +02:00
test_bitops.c
test_bits.c
test_blackhole_dev.c
test_bpf.c
test_debug_virtual.c
test_dynamic_debug.c
test_firmware.c	test_firmware: return ENOMEM instead of ENOSPC on failed memory allocation	2023-08-03 10:24:19 +02:00
test_fprobe.c	fprobe: Pass entry_data to handlers	2023-10-25 12:03:12 +02:00
test_fpu.c
test_free_pages.c
test_hash.c
test_hexdump.c
test_hmm.c
test_hmm_uapi.h
test_ida.c	ida: Fix crash in ida_free when the bitmap is empty	2024-01-20 11:50:09 +01:00
test_kmod.c
test_kprobes.c
test_linear_ranges.c
test_list_sort.c
test_lockup.c
test_maple_tree.c	maple_tree: add GFP_KERNEL to allocations in mas_expected_entries()	2023-11-02 09:35:24 +01:00
test_memcat_p.c
test_meminit.c	lib/test_meminit: fix off-by-one error in test_pages()	2023-10-15 18:32:41 +02:00
test_min_heap.c
test_module.c
test_objagg.c
test_parman.c
test_printf.c
test_ref_tracker.c
test_rhashtable.c
test_scanf.c	lib: test_scanf: Add explicit type cast to result initialization in test_number_prefix()	2023-09-19 12:28:05 +02:00
test_siphash.c
test_sort.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
trace_readwrite.c
ts_bm.c	lib/ts_bm: reset initial match offset for every block of text	2023-07-19 16:21:13 +02:00
ts_fsm.c
ts_kmp.c
ubsan.c
ubsan.h
ucmpdi2.c
ucs2_string.c
usercopy.c
uuid.c
vsprintf.c	lib/vsprintf: Fix %pfwf when current node refcount == 0	2024-01-01 12:39:07 +00:00
win_minmax.c
xarray.c	XArray: Do not return sibling entries from xa_load()	2023-09-13 09:43:00 +02:00
xxhash.c