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Mikulas Patocka 9175341bd8 dm-integrity: don't modify bio's immutable bio_vec in integrity_metadata() 
commit b86f4b790c998afdbc88fe1aa55cfe89c4068726 upstream.

__bio_for_each_segment assumes that the first struct bio_vec argument
doesn't change - it calls "bio_advance_iter_single((bio), &(iter),
(bvl).bv_len)" to advance the iterator. Unfortunately, the dm-integrity
code changes the bio_vec with "bv.bv_len -= pos". When this code path
is taken, the iterator would be out of sync and dm-integrity would
report errors. This happens if the machine is out of memory and
"kmalloc" fails.

Fix this bug by making a copy of "bv" and changing the copy instead.

Fixes: 7eada909bfd7 ("dm: add integrity target")
Cc: stable@vger.kernel.org	# v4.12+
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-01-05 15:12:31 +01:00
..
bcache
bcache: avoid NULL checking to c->root in run_cache_set()
2023-12-20 15:44:33 +01:00
persistent-data
dm space map common: add bounds check to sm_ll_lookup_bitmap()
2022-01-27 10:54:20 +01:00
dm-bio-prison-v1.c
dm bio prison: replace spin_lock_irqsave with spin_lock_irq
2019-11-05 14:53:03 -05:00
dm-bio-prison-v1.h
…
dm-bio-prison-v2.c
dm bio prison v2: use true/false for bool variable
2020-01-07 12:07:08 -05:00
dm-bio-prison-v2.h
…
dm-bio-record.h
dm bio record: save/restore bi_end_io and bi_integrity
2020-03-03 10:02:46 -05:00
dm-bufio.c
dm bufio: subtract the number of initial sectors in dm_bufio_get_device_size
2021-03-09 11:11:12 +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
2023-01-14 10:16:31 +01:00
dm-cache-metadata.h
…
dm-cache-policy-internal.h
…
dm-cache-policy-smq.c
dm cache policy smq: ensure IO doesn't prevent cleaner policy progress
2023-08-11 11:57:44 +02:00
dm-cache-policy.c
…
dm-cache-policy.h
…
dm-cache-target.c
dm cache: add cond_resched() to various workqueue loops
2023-03-11 16:39:54 +01:00
dm-clone-metadata.c
dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions()
2020-03-27 14:42:51 -04:00
dm-clone-metadata.h
dm clone metadata: Fix return type of dm_clone_nr_of_hydrated_regions()
2020-03-27 14:42:51 -04:00
dm-clone-target.c
dm clone: call kmem_cache_destroy() in dm_clone_init() error path
2023-05-17 11:48:06 +02:00
dm-core.h
dm: fix deadlock when swapping to encrypted device
2021-03-04 11:38:44 +01:00
dm-crypt.c
dm crypt: avoid accessing uninitialized tasklet
2023-04-05 11:23:44 +02:00
dm-delay.c
dm-delay: fix a race between delay_presuspend and delay_bio
2023-12-08 08:46:11 +01:00
dm-dust.c
dm dust: add interface to list all badblocks
2020-07-20 11:17:41 -04:00
dm-ebs-target.c
dm ebs: Fix incorrect checking for REQ_OP_FLUSH
2020-08-04 16:01:40 -04:00
dm-era-target.c
dm era: commit metadata in postsuspend after worker stops
2022-06-29 08:59:45 +02:00
dm-exception-store.c
…
dm-exception-store.h
…
dm-flakey.c
dm flakey: fix a crash with invalid table line
2023-05-17 11:48:07 +02:00
dm-historical-service-time.c
dm mpath: only use ktime_get_ns() in historical selector
2022-04-20 09:23:18 +02:00
dm-init.c
dm init: Set file local variable static
2020-08-04 15:51:28 -04:00
dm-integrity.c
dm-integrity: don't modify bio's immutable bio_vec in integrity_metadata()
2024-01-05 15:12:31 +01:00
dm-io.c
treewide: Remove uninitialized_var() usage
2020-07-16 12:35:15 -07:00
dm-ioctl.c
dm ioctl: fix nested locking in table_clear() to remove deadlock concern
2023-05-17 11:48:07 +02:00
dm-kcopyd.c
dm kcopyd: always complete failed jobs
2019-08-15 15:57:39 -04:00
dm-linear.c
dm: add support for REQ_NOWAIT and enable it for linear target
2020-09-25 08:20:03 -06:00
dm-log-userspace-base.c
…
dm-log-userspace-transfer.c
…
dm-log-userspace-transfer.h
…
dm-log-writes.c
dm: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-log.c
dm mirror log: clear log bits up to BITS_PER_LONG boundary
2022-06-29 08:59:45 +02:00
dm-mpath.c
dm: use dm_table_get_device_name() where appropriate in targets
2020-09-29 16:33:08 -04:00
dm-mpath.h
…
dm-path-selector.c
…
dm-path-selector.h
dm mpath: pass IO start time to path selector
2020-05-15 10:29:36 -04:00
dm-queue-length.c
dm mpath: pass IO start time to path selector
2020-05-15 10:29:36 -04:00
dm-raid1.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-raid.c
dm raid: protect md_stop() with 'reconfig_mutex'
2023-08-11 11:57:38 +02:00
dm-region-hash.c
…
dm-round-robin.c
…
dm-rq.c
block: remove the request_queue to argument request based tracepoints
2022-08-21 15:15:36 +02:00
dm-rq.h
…
dm-service-time.c
dm mpath: pass IO start time to path selector
2020-05-15 10:29:36 -04:00
dm-snap-persistent.c
dm snap persistent: simplify area_io()
2020-09-29 16:33:12 -04:00
dm-snap-transient.c
…
dm-snap.c
dm snapshot: properly fix a crash when an origin has no snapshots
2021-06-03 09:00:30 +02:00
dm-stats.c
dm stats: check for and propagate alloc_percpu failure
2023-04-05 11:23:42 +02:00
dm-stats.h
dm stats: check for and propagate alloc_percpu failure
2023-04-05 11:23:42 +02:00
dm-stripe.c
dm: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-switch.c
dm: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-sysfs.c
…
dm-table.c
dm table: Fix zoned model check and zone sectors check
2021-03-30 14:32:06 +02:00
dm-target.c
…
dm-thin-metadata.c
dm thin: Use last transaction's pmd->root when commit failed
2023-01-14 10:16:31 +01:00
dm-thin-metadata.h
dm thin metadata: Add support for a pre-commit callback
2019-12-05 17:05:24 -05:00
dm-thin.c
dm thin: fix deadlock when swapping to thin device
2023-04-05 11:23:40 +02:00
dm-uevent.c
…
dm-uevent.h
…
dm-unstripe.c
…
dm-verity-fec.c
dm-verity: align struct dm_verity_fec_io properly
2023-12-08 08:46:12 +01:00
dm-verity-fec.h
dm verity fec: fix misaligned RS roots IO
2021-04-21 13:00:54 +02:00
dm-verity-target.c
dm verity: don't perform FEC for failed readahead IO
2023-12-08 08:46:12 +01:00
dm-verity-verify-sig.c
dm verity: fix require_signatures module_param permissions
2021-06-16 12:01:37 +02:00
dm-verity-verify-sig.h
dm verity: Fix compilation warning
2020-08-04 15:48:13 -04:00
dm-verity.h
dm-verity: align struct dm_verity_fec_io properly
2023-12-08 08:46:12 +01:00
dm-writecache.c
dm writecache: set a default MAX_WRITEBACK_JOBS
2022-08-21 15:16:19 +02:00
dm-zero.c
…
dm-zoned-metadata.c
dm zoned: check zone capacity
2021-07-19 09:45:01 +02:00
dm-zoned-reclaim.c
dm zoned: Fix zone reclaim trigger
2020-07-08 12:21:53 -04:00
dm-zoned-target.c
dm zoned: free dmz->ddev array in dmz_put_zoned_devices
2023-10-10 21:53:39 +02:00
dm-zoned.h
dm zoned: select reclaim zone based on device index
2020-06-05 14:59:53 -04:00
dm.c
dm stats: check for and propagate alloc_percpu failure
2023-04-05 11:23:42 +02:00
dm.h
dm table: fix DAX iterate_devices based device capability checks
2021-03-04 11:38:44 +01:00
Kconfig
dm integrity: select CRYPTO_SKCIPHER
2021-01-27 11:54:57 +01:00
Makefile
md: move the early init autodetect code to drivers/md/
2020-07-16 15:34:47 +02:00
md-autodetect.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
md-bitmap.c
md/md-bitmap: remove unnecessary local variable in backlog_store()
2023-09-19 12:20:23 +02:00
md-bitmap.h
…
md-cluster.c
md/cluster: fix deadlock when node is doing resync job
2020-12-30 11:54:25 +01:00
md-cluster.h
…
md-faulty.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
md-linear.c
block: add a new revalidate_disk_size helper
2020-09-02 08:00:07 -06:00
md-linear.h
md/raid1: Replace zero-length array with flexible-array
2020-05-13 12:02:23 -07:00
md-multipath.c
writeback: remove bdi->congested_fn
2020-07-08 17:20:46 -06:00
md-multipath.h
…
md.c
dm raid: protect md_stop() with 'reconfig_mutex'
2023-08-11 11:57:38 +02:00
md.h
md: revert io stats accounting
2022-01-16 09:14:21 +01:00
raid0.c
md/raid0: add discard support for the 'original' layout
2023-07-27 08:44:29 +02:00
raid0.h
md/raid0: add discard support for the 'original' layout
2023-07-27 08:44:29 +02:00
raid1-10.c
…
raid1.c
md/raid1: fix error: ISO C90 forbids mixed declarations
2023-09-23 11:01:09 +02:00
raid1.h
md/raid1: Replace zero-length array with flexible-array
2020-05-13 12:02:23 -07:00
raid5-cache.c
raid5-cache: hold spinlock instead of mutex in r5c_journal_mode_show
2020-08-02 23:03:52 -07:00
raid5-log.h
…
raid5-ppl.c
md/raid456: convert macro STRIPE_* to RAID5_STRIPE_*
2020-07-21 17:18:12 -07:00
raid5.c
md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d
2022-10-26 13:25:53 +02:00
raid5.h
md/raid5: let multiple devices of stripe_head share page
2020-09-24 16:44:44 -07:00
raid10.c
md/raid10: prevent soft lockup while flush writes
2023-07-27 08:44:36 +02:00
raid10.h
Revert "md/raid10: improve discard request for far layout"
2020-12-09 20:46:00 -08:00