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linux/drivers/md
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Coly Li 65f0f017e7 bcache: avoid nr_stripes overflow in bcache_device_init() 
For some block devices which large capacity (e.g. 8TB) but small io_opt
size (e.g. 8 sectors), in bcache_device_init() the stripes number calcu-
lated by,
	DIV_ROUND_UP_ULL(sectors, d->stripe_size);
might be overflow to the unsigned int bcache_device->nr_stripes.

This patch uses the uint64_t variable to store DIV_ROUND_UP_ULL()
and after the value is checked to be available in unsigned int range,
sets it to bache_device->nr_stripes. Then the overflow is avoided.

Reported-and-tested-by: Ken Raeburn <raeburn@redhat.com>
Signed-off-by: Coly Li <colyli@suse.de>
Cc: stable@vger.kernel.org
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1783075
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-25 07:38:20 -06:00
..
bcache
bcache: avoid nr_stripes overflow in bcache_device_init()
2020-07-25 07:38:20 -06:00
persistent-data
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
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
- Largest change for this cycle is the DM zoned target's metadata
2020-06-05 15:45:03 -07:00
dm-builtin.c
…
dm-cache-background-tracker.c
…
dm-cache-background-tracker.h
…
dm-cache-block-types.h
…
dm-cache-metadata.c
dm cache metadata: Fix loading discard bitset
2019-04-18 16:18:25 -04:00
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
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
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
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-core.h
dm: disable DISCARD if the underlying storage no longer supports it
2019-04-04 15:33:59 -04:00
dm-crypt.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-delay.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-dust.c
dm dust: change ret to r in dust_map_write
2020-01-07 11:43:36 -05:00
dm-ebs-target.c
dm ebs: use dm_bufio_forget_buffers
2020-06-05 14:59:42 -04:00
dm-era-target.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
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
block: rework zone reporting
2019-11-12 19:12:07 -07:00
dm-historical-service-time.c
dm mpath: add Historical Service Time Path Selector
2020-05-15 10:29:36 -04:00
dm-init.c
docs: device-mapper: move it to the admin-guide
2019-07-15 11:03:01 -03:00
dm-integrity.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-io.c
dm: Use kzalloc for all structs with embedded biosets/mempools
2018-06-05 08:47:43 -06:00
dm-ioctl.c
dm ioctl: use struct_size() helper in retrieve_deps()
2020-06-17 12:31:45 -04:00
dm-kcopyd.c
dm kcopyd: always complete failed jobs
2019-08-15 15:57:39 -04:00
dm-linear.c
dm,dax: Add dax zero_page_range operation
2020-04-02 19:15:03 -07:00
dm-log-userspace-base.c
dm: convert to bioset_init()/mempool_init()
2018-05-30 15:33:32 -06:00
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-mpath.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
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: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-region-hash.c
- Error path bug fix for overflow tests (Dan)
2018-06-12 18:28:00 -07:00
dm-round-robin.c
…
dm-rq.c
blk-mq: move failure injection out of blk_mq_complete_request
2020-06-24 09:15:57 -06:00
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 mpath: pass IO start time to path selector
2020-05-15 10:29:36 -04:00
dm-snap-persistent.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-snap-transient.c
…
dm-snap.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-stats.c
dm: replace zero-length array with flexible-array
2020-05-20 17:09:44 -04:00
dm-stats.h
…
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: remove legacy request-based IO path
2018-10-11 11:36:09 -04:00
dm-table.c
dm: remove the make_request_fn check in device_area_is_invalid
2020-04-25 09:45:43 -06:00
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 metadata: fix lockdep complaint
2020-02-27 12:00:53 -05:00
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
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
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 hash block number in verity_fec_decode
2020-04-16 16:16:38 -04:00
dm-verity-fec.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dm-verity-target.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
dm-verity-verify-sig.c
dm verity: add root hash pkcs#7 signature verification
2019-08-23 10:13:14 -04:00
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
Linux 5.8-rc4
2020-07-08 08:02:13 -06:00
dm-zero.c
…
dm-zoned-metadata.c
dm zoned: Fix reclaim zone selection
2020-06-19 12:29:39 -04:00
dm-zoned-reclaim.c
dm zoned: fix uninitialized pointer dereference
2020-06-17 12:13:08 -04:00
dm-zoned-target.c
Linux 5.8-rc4
2020-07-08 08:02:13 -06:00
dm-zoned.h
dm zoned: select reclaim zone based on device index
2020-06-05 14:59:53 -04:00
dm.c
Linux 5.8-rc4
2020-07-08 08:02:13 -06:00
dm.h
dm: make dm_table_find_target return NULL
2019-08-23 10:13:12 -04:00
Kconfig
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
Makefile
dm mpath: add Historical Service Time Path Selector
2020-05-15 10:29:36 -04:00
md-bitmap.c
md: fix deadlock causing by sysfs_notify
2020-07-14 22:58:51 -07:00
md-bitmap.h
md: Avoid namespace collision with bitmap API
2018-08-01 15:49:39 -07:00
md-cluster.c
md-cluster: fix wild pointer of unlock_all_bitmaps()
2020-07-14 23:38:32 -07:00
md-cluster.h
md-cluster: introduce resync_info_get interface for sanity check
2018-10-18 09:36:35 -07:00
md-faulty.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
md-linear.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -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
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
md-multipath.h
md: convert to bioset_init()/mempool_init()
2018-05-30 15:33:32 -06:00
md.c
md-cluster: fix rmmod issue when md_cluster convert bitmap to none
2020-07-21 17:30:37 -07:00
md.h
md: fix deadlock causing by sysfs_notify
2020-07-14 22:58:51 -07:00
raid0.c
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
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
block: rename generic_make_request to submit_bio_noacct
2020-07-01 07:27:24 -06:00
raid1.h
md/raid1: Replace zero-length array with flexible-array
2020-05-13 12:02:23 -07:00
raid5-cache.c
md/raid456: convert macro STRIPE_* to RAID5_STRIPE_*
2020-07-21 17:18:12 -07:00
raid5-log.h
raid5: set write hint for PPL
2019-03-12 10:15:18 -07:00
raid5-ppl.c
md/raid456: convert macro STRIPE_* to RAID5_STRIPE_*
2020-07-21 17:18:12 -07:00
raid5.c
md/raid5: use do_div() for 64 bit divisions in raid5_sync_request
2020-07-22 22:49:46 -07:00
raid5.h
md/raid5: set default stripe_size as 4096
2020-07-21 17:18:17 -07:00
raid10.c
md/raid10: avoid deadlock on recovery.
2020-07-22 11:44:54 -07:00
raid10.h
md/raid1: Replace zero-length array with flexible-array
2020-05-13 12:02:23 -07:00