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NeilBrown 88a3c63a96 md: avoid signed overflow in slot_store() 
[ Upstream commit 3bc57292278a0b6ac4656cad94c14f2453344b57 ]

slot_store() uses kstrtouint() to get a slot number, but stores the
result in an "int" variable (by casting a pointer).
This can result in a negative slot number if the unsigned int value is
very large.

A negative number means that the slot is empty, but setting a negative
slot number this way will not remove the device from the array.  I don't
think this is a serious problem, but it could cause confusion and it is
best to fix it.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:16:42 +02:00
..
bcache
bcache: fix set_at_max_writeback_rate() for multiple attached devices
2022-10-26 13:22:57 +02:00
persistent-data
dm space map common: add bounds check to sm_ll_lookup_bitmap()
2022-01-27 09:19:46 +01:00
dm-bio-prison-v1.c
…
dm-bio-prison-v1.h
…
dm-bio-prison-v2.c
…
dm-bio-prison-v2.h
…
dm-bio-record.h
dm bio record: save/restore bi_end_io and bi_integrity
2020-03-25 08:25:48 +01:00
dm-bufio.c
dm bufio: subtract the number of initial sectors in dm_bufio_get_device_size
2021-03-09 11:09:37 +01:00
dm-builtin.c
…
dm-cache-background-tracker.c
…
dm-cache-background-tracker.h
…
dm-cache-block-types.h
…
dm-cache-metadata.c
dm cache: Fix ABBA deadlock between shrink_slab and dm_cache_metadata_abort
2023-01-18 11:41:46 +01:00
dm-cache-metadata.h
…
dm-cache-policy-internal.h
…
dm-cache-policy-smq.c
dm: remove unnecessary unlikely() around WARN_ON_ONCE()
2018-10-16 14:34:59 -04:00
dm-cache-policy.c
…
dm-cache-policy.h
…
dm-cache-target.c
dm cache: add cond_resched() to various workqueue loops
2023-03-11 16:43:58 +01:00
dm-clone-metadata.c
dm clone: Fix handling of partial region discards
2020-04-17 10:50:24 +02:00
dm-clone-metadata.h
dm clone: replace spin_lock_irqsave with spin_lock_irq
2020-04-17 10:50:23 +02:00
dm-clone-target.c
dm clone: Fix UAF in clone_dtr()
2023-01-18 11:41:47 +01:00
dm-core.h
dm: fix deadlock when swapping to encrypted device
2021-03-04 10:26:51 +01:00
dm-crypt.c
dm crypt: add cond_resched() to dmcrypt_write()
2023-04-05 11:16:41 +02:00
dm-delay.c
dm delay: fix a crash when invalid device is specified
2019-04-26 11:29:32 -04:00
dm-dust.c
dm dust: use dust block size for badblocklist index
2019-08-21 11:27:17 -04:00
dm-era-target.c
dm era: commit metadata in postsuspend after worker stops
2022-06-29 08:58:45 +02:00
dm-exception-store.c
…
dm-exception-store.h
- Improve DM snapshot target's scalability by using finer grained
2019-05-16 15:55:48 -07:00
dm-flakey.c
dm flakey: don't corrupt the zero page
2023-03-11 16:44:04 +01:00
dm-init.c
docs: device-mapper: move it to the admin-guide
2019-07-15 11:03:01 -03:00
dm-integrity.c
dm integrity: Fix UAF in dm_integrity_dtr()
2023-01-18 11:41:47 +01:00
dm-io.c
…
dm-ioctl.c
dm ioctl: fix misbehavior if list_versions races with module loading
2022-11-25 17:42:19 +01:00
dm-kcopyd.c
dm kcopyd: always complete failed jobs
2019-08-15 15:57:39 -04:00
dm-linear.c
block: Kill gfp_t argument of blkdev_report_zones()
2019-07-11 20:04:37 -06:00
dm-log-userspace-base.c
…
dm-log-userspace-transfer.c
…
dm-log-userspace-transfer.h
…
dm-log-writes.c
dm log writes: fix incorrect comment about the logged sequence example
2019-07-09 14:13:33 -04:00
dm-log.c
dm mirror log: clear log bits up to BITS_PER_LONG boundary
2022-06-29 08:58:45 +02:00
dm-mpath.c
dm mpath: fix racey management of PG initialization
2020-09-09 19:12:35 +02:00
dm-mpath.h
…
dm-path-selector.c
…
dm-path-selector.h
…
dm-queue-length.c
…
dm-raid1.c
dm raid1: use struct_size() with kzalloc()
2019-08-26 11:05:32 -04:00
dm-raid.c
dm raid: fix address sanitizer warning in raid_status
2022-08-25 11:18:14 +02:00
dm-region-hash.c
…
dm-round-robin.c
…
dm-rq.c
dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
2021-05-11 14:04:18 +02:00
dm-rq.h
dm: remove unused _rq_tio_cache and _rq_cache
2019-03-05 14:48:50 -05:00
dm-service-time.c
…
dm-snap-persistent.c
block: fix an integer overflow in logical block size
2020-01-23 08:22:32 +01:00
dm-snap-transient.c
…
dm-snap.c
dm snapshot: properly fix a crash when an origin has no snapshots
2021-06-03 08:59:02 +02:00
dm-stats.c
dm stats: check for and propagate alloc_percpu failure
2023-04-05 11:16:41 +02:00
dm-stats.h
dm stats: check for and propagate alloc_percpu failure
2023-04-05 11:16:41 +02:00
dm-stripe.c
…
dm-switch.c
dm switch: use struct_size() in kzalloc()
2019-03-05 14:48:51 -05:00
dm-sysfs.c
dm: remove legacy request-based IO path
2018-10-11 11:36:09 -04:00
dm-table.c
dm: remove special-casing of bio-based immutable singleton target on NVMe
2022-06-25 12:44:35 +02:00
dm-target.c
dm mpath: fix missing call of path selector type->end_io
2019-04-25 15:38:52 -04:00
dm-thin-metadata.c
dm thin: Use last transaction's pmd->root when commit failed
2023-01-18 11:41:47 +01:00
dm-thin-metadata.h
dm thin metadata: Add support for a pre-commit callback
2019-12-21 11:05:01 +01:00
dm-thin.c
dm thin: fix deadlock when swapping to thin device
2023-04-05 11:16:40 +02:00
dm-uevent.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
dm-uevent.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
dm-unstripe.c
dm: Check for device sector overflow if CONFIG_LBDAF is not set
2018-12-18 09:02:26 -05:00
dm-verity-fec.c
dm verity fec: fix misaligned RS roots IO
2021-04-21 12:56:15 +02:00
dm-verity-fec.h
dm verity fec: fix misaligned RS roots IO
2021-04-21 12:56:15 +02:00
dm-verity-target.c
dm verity: set DM_TARGET_IMMUTABLE feature flag
2022-06-06 08:33:51 +02:00
dm-verity-verify-sig.c
dm verity: fix require_signatures module_param permissions
2021-06-16 11:59:37 +02:00
dm-verity-verify-sig.h
dm verity: add root hash pkcs#7 signature verification
2019-08-23 10:13:14 -04:00
dm-verity.h
dm verity: add root hash pkcs#7 signature verification
2019-08-23 10:13:14 -04:00
dm-writecache.c
dm writecache: set a default MAX_WRITEBACK_JOBS
2022-08-25 11:18:14 +02:00
dm-zero.c
…
dm-zoned-metadata.c
dm zoned: return NULL if dmz_get_zone_for_reclaim() fails to find a zone
2020-06-24 17:50:31 +02:00
dm-zoned-reclaim.c
dm zoned: return NULL if dmz_get_zone_for_reclaim() fails to find a zone
2020-06-24 17:50:31 +02:00
dm-zoned-target.c
dm zoned: assign max_io_len correctly
2020-07-09 09:37:57 +02:00
dm-zoned.h
dm zoned: reduce overhead of backing device checks
2019-12-17 19:56:12 +01:00
dm.c
dm stats: check for and propagate alloc_percpu failure
2023-04-05 11:16:41 +02:00
dm.h
dm table: fix DAX iterate_devices based device capability checks
2021-03-11 14:06:49 +01:00
Kconfig
dm integrity: select CRYPTO_SKCIPHER
2021-01-27 11:47:42 +01:00
Makefile
dm: add clone target
2019-09-12 09:32:31 -04:00
md-bitmap.c
md/bitmap: Fix bitmap chunk size overflow issues
2023-01-18 11:41:49 +01:00
md-bitmap.h
…
md-cluster.c
md/cluster: fix deadlock when node is doing resync job
2020-12-30 11:51:45 +01:00
md-cluster.h
md-cluster: introduce resync_info_get interface for sanity check
2018-10-18 09:36:35 -07:00
md-faulty.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47
2019-05-24 17:27:13 +02:00
md-linear.c
md: improve handling of bio with REQ_PREFLUSH in md_flush_request()
2019-12-17 19:56:14 +01:00
md-linear.h
…
md-multipath.c
md: improve handling of bio with REQ_PREFLUSH in md_flush_request()
2019-12-17 19:56:14 +01:00
md-multipath.h
…
md.c
md: avoid signed overflow in slot_store()
2023-04-05 11:16:42 +02:00
md.h
md: improve handling of bio with REQ_PREFLUSH in md_flush_request()
2019-12-17 19:56:14 +01:00
raid0.c
md: Replace snprintf with scnprintf
2022-10-26 13:23:00 +02:00
raid0.h
md/raid0: avoid RAID0 data corruption due to layout confusion.
2019-09-13 13:10:05 -07:00
raid1-10.c
md: raid1-10: Unify r{1,10}bio_pool_free
2019-06-15 01:37:35 -06:00
raid1.c
md/raid1: stop mdx_raid1 thread when raid1 array run failed
2023-01-18 11:41:37 +01:00
raid1.h
…
raid5-cache.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
raid5-log.h
raid5: set write hint for PPL
2019-03-12 10:15:18 -07:00
raid5-ppl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288
2019-06-05 17:36:37 +02:00
raid5.c
md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d
2022-10-26 13:22:57 +02:00
raid5.h
raid5: use bio_end_sector in r5_next_bio
2019-09-13 13:14:43 -07:00
raid10.c
md-raid10: fix KASAN warning
2022-08-25 11:17:25 +02:00
raid10.h
…