Genjian Zhang 4b22d0801f dm thin metadata: fix superblock refcount leak on snapshot shadow failure ...

__reserve_metadata_snap() increments THIN_SUPERBLOCK_LOCATION in the
metadata space map before shadowing it. When dm_tm_shadow_block()
fails, a reference is leaked in the metadata space map.

Fix by adding the missing dm_sm_dec_block().

Signed-off-by: Genjian Zhang <zhanggenjian@kylinos.cn>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: cc8394d86f ("dm thin: provide userspace access to pool metadata")
Cc: stable@vger.kernel.org

2026-07-11 15:18:51 +02:00

..

bcache

bcache: fix uninitialized closure object

2026-04-03 05:11:08 -06:00

dm-pcache

dm-pcache: reject option groups without values

2026-07-08 22:33:34 +02:00

dm-vdo

Merge tag 'for-7.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2026-06-16 13:20:54 +05:30

persistent-data

dm-thin: fix metadata refcount underflow

2026-04-20 19:56:44 +02:00

dm-audit.c

…

dm-audit.h

…

dm-bio-prison-v1.c

Convert 'alloc_flex' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-bio-prison-v1.h

dm cache: Remove unused functions in bio-prison-v1

2024-11-20 11:38:04 +01:00

dm-bio-prison-v2.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-bio-prison-v2.h

…

dm-bio-record.h

…

dm-bufio.c

dm-bufio: fix wrong count calculation in dm_bufio_issue_discard

2026-07-10 18:39:17 +02:00

dm-builtin.c

…

dm-cache-background-tracker.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-cache-background-tracker.h

dm cache: Remove unused btracker_nr_writebacks_queued

2024-11-20 11:38:04 +01:00

dm-cache-block-types.h

…

dm-cache-metadata.c

dm cache metadata: fix memory leak on metadata abort retry

2026-03-09 14:53:39 +01:00

dm-cache-metadata.h

dm cache: prevent entering passthrough mode after unclean shutdown

2026-03-02 16:50:18 +01:00

dm-cache-policy-internal.h

…

dm-cache-policy-smq.c

Merge tag 'for-7.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2026-06-16 13:20:54 +05:30

dm-cache-policy.c

…

dm-cache-policy.h

…

dm-cache-target.c

dm cache: fix missing return in invalidate_committed's error path

2026-04-10 15:16:06 +02:00

dm-clone-metadata.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-clone-metadata.h

…

dm-clone-target.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-core.h

Revert "dm: fix a race condition in retrieve_deps"

2026-01-28 15:44:02 +01:00

dm-crypt.c

dm-crypt: Make crypt_iv_operations::post return void

2026-03-30 12:06:33 +02:00

dm-delay.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-dust.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-ebs-target.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-era-target.c

dm era: fix error code propagation in era_ctr()

2026-07-08 22:33:35 +02:00

dm-exception-store.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-exception-store.h

dm-snapshot: fix 'scheduling while atomic' on real-time kernels

2025-12-10 19:28:22 +01:00

dm-flakey.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-ima.c

dm-ima: use active table's size if available

2026-05-04 14:53:52 +02:00

dm-ima.h

dm-ima: use active table's size if available

2026-05-04 14:53:52 +02:00

dm-init.c

dm init: ensure device probing has finished in dm-mod.waitfor=

2026-03-18 15:36:33 +01:00

dm-inlinecrypt.c

dm-inlinecrypt: Fix an error handling path in inlinecrypt_ctr()

2026-07-08 22:33:35 +02:00

dm-integrity.c

dm-integrity: fix a bug if the bio is out of limits

2026-07-10 14:39:47 +02:00

dm-io-rewind.c

…

dm-io-tracker.h

…

dm-io.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-ioctl.c

dm-ioctl: fix a possible overflow in list_version_get_info

2026-07-10 14:40:51 +02:00

dm-kcopyd.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-linear.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-log-userspace-base.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-log-userspace-transfer.c

…

dm-log-userspace-transfer.h

…

dm-log-writes.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-log.c

dm-log: fix a bitset_size overflow on 32bit machines

2026-07-08 22:33:20 +02:00

dm-mpath.c

dm-mpath: don't stop probing paths at presuspend

2026-03-02 16:54:36 +01:00

dm-mpath.h

…

dm-path-selector.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-path-selector.h

dm-mpath: make dm_unregister_path_selector return void

2025-06-30 16:20:04 +02:00

dm-ps-historical-service-time.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-ps-io-affinity.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-ps-queue-length.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-ps-round-robin.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-ps-service-time.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-raid1.c

dm mirror: fix integer overflow in create_dirty_log()

2026-03-02 18:43:12 +01:00

dm-raid.c

dm-raid: only requeue bios when dm is suspending

2026-05-31 19:09:17 +08:00

dm-region-hash.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-rq.c

block: switch numa_node to int in blk_mq_hw_ctx and init_request

2026-05-26 11:01:55 -06:00

dm-rq.h

…

dm-snap-persistent.c

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-21 20:03:00 -08:00

dm-snap-transient.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-snap.c

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-21 20:03:00 -08:00

dm-stats.c

dm-stats: fix dm_jiffies_to_msec64

2026-07-10 18:40:27 +02:00

dm-stats.h

…

dm-stripe.c

Convert 'alloc_flex' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-switch.c

Convert 'alloc_flex' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-sysfs.c

dm: sysfs: use sysfs_emit() in dm-sysfs.c

2025-10-20 15:22:21 +02:00

dm-table.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-target.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-thin-metadata.c

dm thin metadata: fix superblock refcount leak on snapshot shadow failure

2026-07-11 15:18:51 +02:00

dm-thin-metadata.h

…

dm-thin.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-uevent.c

…

dm-uevent.h

…

dm-unstripe.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-verity-fec.c

dm-verity: fix buffer overflow in FEC calculation

2026-07-08 22:33:34 +02:00

dm-verity-fec.h

dm-verity: fix buffer overflow in FEC calculation

2026-07-08 22:33:34 +02:00

dm-verity-loadpin.c

dm-verity: fix a possible NULL pointer dereference

2026-07-10 14:41:43 +02:00

dm-verity-target.c

dm-verity: make error counter atomic

2026-07-10 14:42:33 +02:00

dm-verity-verify-sig.c

dm-verity: fix section mismatch error

2026-01-21 14:06:23 +01:00

dm-verity-verify-sig.h

dm-verity: fix section mismatch error

2026-01-21 14:06:23 +01:00

dm-verity.h

dm-verity: make error counter atomic

2026-07-10 14:42:33 +02:00

dm-writecache.c

dm: provide helper to set stacked limits

2026-03-27 22:19:17 +01:00

dm-zero.c

dm: always manage discard support in terms of max_hw_discard_sectors

2024-05-20 15:51:19 -04:00

dm-zone.c

dm: use READ_ONCE in dm_blk_report_zones

2026-01-14 13:12:21 +01:00

dm-zoned-metadata.c

dm-zoned-metadata: Use strscpy() to copy device name

2026-06-08 14:59:14 +02:00

dm-zoned-reclaim.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-zoned-target.c

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

dm-zoned.h

dm: zoned: Remove unused functions

2024-11-20 11:38:04 +01:00

dm.c

dm: avoid leaking the caller's thread keyring via the table device file

2026-07-08 22:33:35 +02:00

dm.h

block: introduce disk_report_zone()

2025-11-05 08:07:21 -07:00

Kconfig

dm-inlinecrypt: add target for inline block device encryption

2026-05-12 12:58:13 +02:00

Makefile

dm-inlinecrypt: add target for inline block device encryption

2026-05-12 12:58:13 +02:00

md-autodetect.c

md: reintroduce md-linear

2025-01-13 07:36:29 -08:00

md-bitmap.c

md/raid1: honor REQ_NOWAIT when waiting for behind writes

2026-06-21 04:19:27 +08:00

md-bitmap.h

md/raid1: honor REQ_NOWAIT when waiting for behind writes

2026-06-21 04:19:27 +08:00

md-cluster.c

Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses

2026-02-22 08:26:33 -08:00

md-cluster.h

md: switch md-cluster to use md_submodle_head

2025-03-05 00:28:39 +08:00

md-linear.c

Convert 'alloc_flex' family to use the new default GFP_KERNEL argument

2026-02-21 17:09:51 -08:00

md-llbitmap.c

md/raid1: honor REQ_NOWAIT when waiting for behind writes

2026-06-21 04:19:27 +08:00

md.c

md/raid1: honor REQ_NOWAIT when waiting for behind writes

2026-06-21 04:19:27 +08:00

md.h

md/raid1,raid10: fix deadlock in read error recovery path

2026-05-31 19:09:18 +08:00

raid0.c

Merge tag 'md-7.2-20260531' of https://git.kernel.org/pub/scm/linux/kernel/git/mdraid/linux into for-7.2/block

2026-06-01 12:52:20 -06:00

raid0.h

…

raid1-10.c

md/raid1,raid10: don't fail devices for invalid IO errors

2026-04-28 20:44:37 +08:00

raid1.c

md/raid1: protect head_position for read balance

2026-06-21 04:44:42 +08:00

raid1.h

md: remove recovery_disabled

2026-01-26 13:17:38 +08:00

raid5-cache.c

md/raid5: validate payload size before accessing journal metadata

2026-04-07 13:09:22 +08:00

raid5-log.h

…

raid5-ppl.c

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-21 20:03:00 -08:00

raid5.c

Merge tag 'block-7.2-20260625' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

2026-06-25 09:56:47 -07:00

raid5.h

md/raid5: validate discard support at request time

2026-06-21 03:16:24 +08:00

raid10.c

md/raid10: fix writes_pending and barrier reference leaks on discard failures

2026-06-21 02:14:44 +08:00

raid10.h

md: remove recovery_disabled

2026-01-26 13:17:38 +08:00