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linux/drivers/md
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Mikulas Patocka 1cfd5d3399 dm table: fix invalid memory accesses with too high sector number 
If the sector number is too high, dm_table_find_target() should return a
pointer to a zeroed dm_target structure (the caller should test it with
dm_target_is_valid).

However, for some table sizes, the code in dm_table_find_target() that
performs btree lookup will access out of bound memory structures.

Fix this bug by testing the sector number at the beginning of
dm_table_find_target(). Also, add an "inline" keyword to the function
dm_table_get_size() because this is a hot path.

Fixes: 512875bd9661 ("dm: table detect io beyond device")
Cc: stable@vger.kernel.org
Reported-by: Zhang Tao <kontais@zoho.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2019-08-23 10:11:42 -04:00
..
bcache
bcache: Revert "bcache: use sysfs_match_string() instead of __sysfs_match_string()"
2019-08-09 07:37:33 -06:00
persistent-data
dm space map metadata: fix missing store of apply_bops() return value
2019-08-22 16:11:24 -04:00
dm-bio-prison-v1.c
dm: adjust structure members to improve alignment
2018-06-08 11:53:14 -04:00
dm-bio-prison-v1.h
…
dm-bio-prison-v2.c
dm: adjust structure members to improve alignment
2018-06-08 11:53:14 -04:00
dm-bio-prison-v2.h
…
dm-bio-record.h
…
dm-bufio.c
Revert "dm bufio: fix deadlock with loop device"
2019-08-15 15:57:39 -04:00
dm-builtin.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dm-cache-background-tracker.c
dm cache background tracker: fix sparse warning
2018-04-30 15:40:40 -04:00
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
dm cache: add support for discard passdown to the origin device
2019-03-05 14:53:52 -05:00
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
Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs"
2019-07-10 18:43:43 -07:00
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
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +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
block: Kill gfp_t argument of blkdev_report_zones()
2019-07-11 20:04:37 -06:00
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 a crash due to BUG_ON in __journal_read_write()
2019-08-15 16:01:57 -04:00
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: fix hang in early create error condition
2019-05-16 09:52:06 -04:00
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: 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 log writes: fix incorrect comment about the logged sequence example
2019-07-09 14:13:33 -04:00
dm-log.c
…
dm-mpath.c
dm mpath: always free attached_handler_name in parse_path()
2019-04-30 16:51:30 -04:00
dm-mpath.h
…
dm-path-selector.c
…
dm-path-selector.h
…
dm-queue-length.c
dm mpath selector: more evenly distribute ties
2018-01-29 13:44:58 -05:00
dm-raid1.c
dm: Check for device sector overflow if CONFIG_LBDAF is not set
2018-12-18 09:02:26 -05:00
dm-raid.c
dm raid: add missing cleanup in raid_ctr()
2019-08-21 11:47:05 -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
dm: update stale comment in end_clone_bio()
2019-07-09 14:14:20 -04:00
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 selector: more evenly distribute ties
2018-01-29 13:44:58 -05:00
dm-snap-persistent.c
dm bufio: move dm-bufio.h to include/linux/
2018-04-03 15:04:23 -04:00
dm-snap-transient.c
…
dm-snap.c
dm snapshot: fix oversights in optional discard support
2019-07-17 11:12:30 -04:00
dm-stats.c
mm: convert totalram_pages and totalhigh_pages variables to atomic
2018-12-28 12:11:47 -08:00
dm-stats.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
dm-stripe.c
dax: Introduce a ->copy_to_iter dax operation
2018-05-22 23:18:31 -07:00
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 table: fix invalid memory accesses with too high sector number
2019-08-23 10:11:42 -04:00
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: check if in fail_io mode when setting needs_check
2019-07-02 15:50:08 -04:00
dm-thin-metadata.h
dm thin: fix passdown_double_checking_shared_status()
2019-01-15 16:10:41 -05:00
dm-thin.c
dm thin: add sanity checks to thin-pool and external snapshot creation
2019-03-05 14:53:49 -05:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
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
dm verity: use message limit for data block corruption message
2019-06-25 14:09:14 -04:00
dm-verity.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428
2019-06-05 17:37:16 +02:00
dm-writecache.c
dm writecache: avoid unnecessary lookups in writecache_find_entry()
2019-04-26 11:48:03 -04:00
dm-zero.c
…
dm-zoned-metadata.c
dm zoned: fix potential NULL dereference in dmz_do_reclaim()
2019-08-21 11:29:30 -04:00
dm-zoned-reclaim.c
dm zoned: fix a few typos
2019-08-15 15:57:43 -04:00
dm-zoned-target.c
dm zoned: add SPDX license identifiers
2019-08-15 15:57:42 -04:00
dm-zoned.h
dm zoned: add SPDX license identifiers
2019-08-15 15:57:42 -04:00
dm.c
- virtio_pmem: The new virtio_pmem facility introduces a paravirtualized
2019-07-18 10:52:08 -07:00
dm.h
dm: enable synchronous dax
2019-07-05 15:19:10 -07:00
Kconfig
docs: device-mapper: move it to the admin-guide
2019-07-15 11:03:01 -03:00
Makefile
dm: add dust target
2019-04-30 16:37:19 -04:00
md-bitmap.c
md-bitmap: create and destroy wb_info_pool with the change of bitmap
2019-06-20 16:36:00 -07:00
md-bitmap.h
md: Avoid namespace collision with bitmap API
2018-08-01 15:49:39 -07:00
md-cluster.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 45
2019-05-24 17:27:12 +02:00
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
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47
2019-05-24 17:27:13 +02:00
md-linear.h
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md
2017-11-14 16:07:26 -08:00
md-multipath.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47
2019-05-24 17:27:13 +02:00
md-multipath.h
md: convert to bioset_init()/mempool_init()
2018-05-30 15:33:32 -06:00
md.c
Merge branch 'for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
2019-07-14 16:17:18 -07:00
md.h
md: introduce mddev_create/destroy_wb_pool for the change of member device
2019-06-20 16:36:00 -07:00
raid0.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 47
2019-05-24 17:27:13 +02:00
raid0.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: Fix a warning message in remove_wb()
2019-06-26 12:18:48 -07:00
raid1.h
md: convert to bioset_init()/mempool_init()
2018-05-30 15:33:32 -06:00
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
block: remove the bi_phys_segments field in struct bio
2019-06-20 10:29:22 -06:00
raid5.h
md: convert to kvmalloc
2019-03-12 10:04:02 -07:00
raid10.c
md/raid10: read balance chooses idlest disk for SSD
2019-06-15 01:37:35 -06:00
raid10.h
md: convert to bioset_init()/mempool_init()
2018-05-30 15:33:32 -06:00