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Andrzej Hajda 9bb6362652 debugobjects: Stop accessing objects after releasing hash bucket lock 
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
 		2023-11-22 10:41:46 +01:00
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842
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crypto
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dim
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fonts powerpc: Use shared font data 2023-10-01 23:09:02 +11:00
kunit kunit: test: Fix the possible memory leak in executor_test 2023-09-28 08:51:07 -06:00
livepatch
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lz4
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lzo
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math
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pldmfw
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raid6 lib/raid6: Drop IA64 support 2023-09-11 08:13:18 +00:00
reed_solomon
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test_fortify
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vdso
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xz arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
zlib_deflate
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zlib_dfltcc
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zlib_inflate
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zstd zstd: Fix array-index-out-of-bounds UBSAN warning 2023-11-14 17:12:52 -08:00
.gitignore
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Kconfig cxl for v6.7 2023-11-04 16:20:36 -10:00
Kconfig.debug Probes updates for v6.7: 2023-11-01 16:15:42 -10:00
Kconfig.kasan
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Kconfig.kcsan
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Kconfig.kfence
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Kconfig.kgdb
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Kconfig.kmsan
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Kconfig.ubsan
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Makefile cxl for v6.7 2023-11-04 16:20:36 -10:00
argv_split.c argv_split: fix kernel-doc warnings 2023-09-19 13:21:33 -07:00
ashldi3.c
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ashrdi3.c
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asn1_decoder.c
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asn1_encoder.c
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assoc_array.c
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atomic64.c
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atomic64_test.c
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audit.c
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base64.c
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bcd.c
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bch.c
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bitfield_kunit.c
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bitmap-str.c lib/bitmap: split-out string-related operations to a separate files 2023-10-14 20:25:22 -07:00
bitmap.c bitmap: move bitmap_*_region() functions to bitmap.h 2023-10-16 16:14:45 -07:00
bitrev.c
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bootconfig-data.S
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bootconfig.c
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bsearch.c
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btree.c
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bucket_locks.c
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bug.c
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build_OID_registry
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buildid.c
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bust_spinlocks.c
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check_signature.c
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checksum.c
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checksum_kunit.c
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closure.c closures: Fix race in closure_sync() 2023-10-30 21:48:22 -04:00
clz_ctz.c
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clz_tab.c
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cmdline.c
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cmdline_kunit.c
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cmpdi2.c
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compat_audit.c
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cpu_rmap.c
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cpumask.c bitmap patches for v6.7 2023-11-03 07:08:36 -10:00
cpumask_kunit.c
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crc-ccitt.c
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crc-itu-t.c
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crc-t10dif.c
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crc4.c
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crc7.c
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crc8.c
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crc16.c
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crc32.c
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crc32defs.h
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crc32test.c
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crc64-rocksoft.c
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crc64.c
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ctype.c
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debug_info.c
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debug_locks.c
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debugobjects.c debugobjects: Stop accessing objects after releasing hash bucket lock 2023-11-22 10:41:46 +01:00
dec_and_lock.c
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decompress.c
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decompress_bunzip2.c
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decompress_inflate.c
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decompress_unlz4.c
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decompress_unlzma.c
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decompress_unlzo.c
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decompress_unxz.c arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
decompress_unzstd.c
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devmem_is_allowed.c
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devres.c
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dhry.h
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dhry_1.c
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dhry_2.c
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dhry_run.c
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digsig.c
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dump_stack.c
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dynamic_debug.c
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dynamic_queue_limits.c
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earlycpio.c
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errname.c lib: Export errname 2023-09-11 23:59:47 -04:00
error-inject.c
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errseq.c
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extable.c
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fault-inject-usercopy.c
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fault-inject.c
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fdt.c
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fdt_addresses.c
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fdt_empty_tree.c
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fdt_ro.c
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fdt_rw.c
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fdt_strerror.c
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fdt_sw.c
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fdt_wip.c
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find_bit.c
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find_bit_benchmark.c
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flex_proportions.c
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fortify_kunit.c
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fw_table.c lib/fw_table: Remove acpi_parse_entries_array() export 2023-11-02 15:17:21 -07:00
gen_crc32table.c
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gen_crc64table.c
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genalloc.c Devicetree include cleanups for v6.6: 2023-08-30 17:04:28 -07:00
generic-radix-tree.c lib/generic-radix-tree.c: Add peek_prev() 2023-10-19 14:47:33 -04:00
glob.c
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globtest.c
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group_cpus.c
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hashtable_test.c
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hexdump.c
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hweight.c
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idr.c idr: fix param name in idr_alloc_cyclic() doc 2023-09-05 19:01:38 -04:00
inflate.c
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interval_tree.c
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interval_tree_test.c
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iomap.c
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iomap_copy.c
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iommu-helper.c
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iov_iter.c iov_iter, net: Move hash_and_copy_to_iter() to net/ 2023-10-09 09:35:14 +02:00
irq_poll.c
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irq_regs.c
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is_signed_type_kunit.c
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is_single_threaded.c
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kasprintf.c
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kfifo.c
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klist.c
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kobject.c
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kobject_uevent.c kobject: Replace strlcpy with strscpy 2023-09-22 09:50:56 -07:00
kstrtox.c
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kstrtox.h
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kunit_iov_iter.c iov_iter: Kunit tests for page extraction 2023-09-09 15:11:49 -07:00
libcrc32c.c
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linear_ranges.c
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list-test.c
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list_debug.c
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list_sort.c
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llist.c llist: add llist_del_first_this() 2023-10-16 12:44:06 -04:00
locking-selftest-hardirq.h
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locking-selftest-mutex.h
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locking-selftest-rlock-hardirq.h
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locking-selftest-rlock-softirq.h
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locking-selftest-rlock.h
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locking-selftest-rsem.h
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locking-selftest-rtmutex.h
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locking-selftest-softirq.h
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locking-selftest-spin-hardirq.h
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locking-selftest-spin-softirq.h
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locking-selftest-spin.h
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locking-selftest-wlock-hardirq.h
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locking-selftest-wlock-softirq.h
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locking-selftest-wlock.h
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locking-selftest-wsem.h
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locking-selftest.c
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lockref.c
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logic_iomem.c
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logic_pio.c
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lru_cache.c
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lshrdi3.c
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lwq.c lib: add light-weight queuing mechanism. 2023-10-16 12:44:06 -04:00
maple_tree.c maple_tree: add GFP_KERNEL to allocations in mas_expected_entries() 2023-10-18 12:12:41 -07:00
memcat_p.c
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memcpy_kunit.c
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memory-notifier-error-inject.c
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memregion.c
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memweight.c
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muldi3.c
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net_utils.c
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netdev-notifier-error-inject.c
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nlattr.c netlink: add variable-length / auto integers 2023-10-20 11:43:35 +01:00
nmi_backtrace.c
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notifier-error-inject.c
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notifier-error-inject.h
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objagg.c
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objpool.c lib: objpool added: ring-array based lockless MPMC 2023-10-18 22:35:36 +09:00
of-reconfig-notifier-error-inject.c
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oid_registry.c
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once.c
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overflow_kunit.c
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packing.c
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parman.c
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parser.c
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pci_iomap.c
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percpu-refcount.c
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percpu_counter.c percpu_counter: extend _limited_add() to negative amounts 2023-10-18 14:34:14 -07:00
percpu_test.c
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plist.c
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pm-notifier-error-inject.c
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polynomial.c
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radix-tree.c
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radix-tree.h
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random32.c
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ratelimit.c
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rbtree.c
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rbtree_test.c
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rcuref.c locking/atomics: Use atomic_try_cmpxchg_release() to micro-optimize rcuref_put_slowpath() 2023-10-10 10:14:27 +02:00
ref_tracker.c
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refcount.c
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rhashtable.c
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sbitmap.c
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scatterlist.c scatterlist: add missing function params to kernel-doc 2023-09-19 13:21:33 -07:00
seq_buf.c seq_buf: Export seq_buf_puts() 2023-11-02 00:19:44 -04:00
sg_pool.c
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sg_split.c
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siphash.c
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siphash_kunit.c
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slub_kunit.c
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smp_processor_id.c
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sort.c
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stackdepot.c
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stackinit_kunit.c
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stmp_device.c
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strcat_kunit.c
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string.c
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string_helpers.c lib/string_helpers: string_get_size() now returns characters wrote 2023-09-11 23:59:47 -04:00
strncpy_from_user.c
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strnlen_user.c
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strscpy_kunit.c
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syscall.c
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test-kstrtox.c
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test-string_helpers.c
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test_bitmap.c bitmap: add test for bitmap_*_region() functions 2023-10-14 20:25:22 -07:00
test_bitops.c
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test_bits.c
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test_blackhole_dev.c
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test_bpf.c bpf/tests: add tests for cpuv4 instructions 2023-09-15 17:16:57 -07:00
test_debug_virtual.c
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test_dynamic_debug.c
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test_firmware.c
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test_fprobe.c
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test_fpu.c
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test_free_pages.c
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test_hash.c
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test_hexdump.c
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test_hmm.c
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test_hmm_uapi.h
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test_ida.c
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test_kmod.c
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test_kprobes.c
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test_linear_ranges.c
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test_list_sort.c
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test_lockup.c
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test_maple_tree.c maple_tree: add GFP_KERNEL to allocations in mas_expected_entries() 2023-10-18 12:12:41 -07:00
test_memcat_p.c
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test_meminit.c
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test_min_heap.c
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test_module.c
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test_objagg.c
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test_objpool.c lib: test_objpool: make global variables static 2023-11-10 19:59:04 +09:00
test_parman.c
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test_printf.c
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test_ref_tracker.c
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test_rhashtable.c
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test_scanf.c
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test_sort.c
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test_static_key_base.c
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test_static_keys.c
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test_string.c
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test_sysctl.c
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test_ubsan.c
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test_user_copy.c
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test_uuid.c
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test_vmalloc.c
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test_xarray.c
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textsearch.c
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timerqueue.c
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trace_readwrite.c
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ts_bm.c
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ts_fsm.c
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ts_kmp.c
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ubsan.c
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ubsan.h
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ucmpdi2.c
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ucs2_string.c lib/ucs2_string: Add UCS-2 strscpy function 2023-09-13 10:18:42 -07:00
usercopy.c
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uuid.c
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vsprintf.c vsprintf: uninline simple_strntoull(), reorder arguments 2023-11-01 15:55:39 +01:00
win_minmax.c
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xarray.c xarray: Document necessary flag in alloc functions 2023-09-05 19:01:38 -04:00
xxhash.c
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