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linux/drivers/md
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Liequan Che 5202391970 bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again 
commit b2e382ae12 upstream.

Commit 028ddcac47 ("bcache: Remove unnecessary NULL point check in
node allocations") leads a NULL pointer deference in cache_set_flush().

1721         if (!IS_ERR_OR_NULL(c->root))
1722                 list_add(&c->root->list, &c->btree_cache);

>From the above code in cache_set_flush(), if previous registration code
fails before allocating c->root, it is possible c->root is NULL as what
it is initialized. __bch_btree_node_alloc() never returns NULL but
c->root is possible to be NULL at above line 1721.

This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.

Fixes: 028ddcac47 ("bcache: Remove unnecessary NULL point check in node allocations")
Signed-off-by: Liequan Che <cheliequan@inspur.com>
Cc: stable@vger.kernel.org
Cc: Zheng Wang <zyytlz.wz@163.com>
Reviewed-by: Mingzhe Zou <mingzhe.zou@easystack.cn>
Signed-off-by: Coly Li <colyli@suse.de>
Link: https://lore.kernel.org/r/20241202115638.28957-1-colyli@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-12-14 19:54:34 +01:00
..
bcache bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again 2024-12-14 19:54:34 +01:00
persistent-data dm persistent data: fix memory allocation failure 2024-08-29 17:30:14 +02:00
dm-audit.c dm: introduce audit event module for device mapper 2021-10-27 16:53:47 -04:00
dm-audit.h dm: introduce audit event module for device mapper 2021-10-27 16:53:47 -04:00
dm-bio-prison-v1.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-bio-prison-v1.h block: switch bios to blk_status_t 2017-06-09 09:27:32 -06:00
dm-bio-prison-v2.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-bio-prison-v2.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-bio-record.h block: move integrity handling out of <linux/blkdev.h> 2021-10-18 06:17:02 -06:00
dm-bufio.c dm io: Support IO priority 2024-03-26 18:21:02 -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: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-cache-background-tracker.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-cache-block-types.h linux: drop __bitwise__ everywhere 2016-12-16 00:13:41 +02:00
dm-cache-metadata.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-cache-metadata.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-cache-policy-internal.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-cache-policy-smq.c dm cache policy smq: ensure IO doesn't prevent cleaner policy progress 2023-08-03 10:24:17 +02:00
dm-cache-policy.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-cache-policy.h dm: address indent/space issues 2024-03-26 18:21:02 -04:00
dm-cache-target.c dm cache: fix potential out-of-bounds access on the first resume 2024-11-14 13:15:15 +01:00
dm-clone-metadata.c bitmap: introduce generic optimized bitmap_size() 2024-08-29 17:30:14 +02:00
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 2023-05-11 23:03:41 +09:00
dm-core.h dm: limit the number of targets and parameter size area 2024-02-23 09:12:52 +01:00
dm-crypt.c dm: address indent/space issues 2024-03-26 18:21:02 -04:00
dm-delay.c dm-delay: fix a race between delay_presuspend and delay_bio 2023-12-03 07:32:11 +01:00
dm-dust.c dm: use bdev_nr_sectors and bdev_nr_bytes instead of open coding them 2021-10-18 14:43:22 -06:00
dm-ebs-target.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-era-target.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-exception-store.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-exception-store.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-flakey.c dm flakey: fix a crash with invalid table line 2023-05-11 23:03:41 +09:00
dm-ima.c dm table: audit all dm_table_get_target() callers 2022-07-07 11:49:34 -04:00
dm-ima.h dm ima: add version info to dm related events in ima log 2021-08-20 15:59:47 -04:00
dm-init.c dm init: Handle minors larger than 255 2024-09-12 11:10:22 +02:00
dm-integrity.c dm-integrity: fix a race condition when accessing recalc_sector 2024-09-18 19:23:04 +02:00
dm-io-rewind.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-io-tracker.h dm writecache: make writeback pause configurable 2021-06-28 16:30:13 -04:00
dm-io.c dm io: Support IO priority 2024-03-26 18:21:02 -04:00
dm-ioctl.c dm resume: don't return EINVAL when signalled 2024-08-29 17:30:14 +02:00
dm-kcopyd.c dm io: Support IO priority 2024-03-26 18:21:02 -04:00
dm-linear.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-log-userspace-base.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-log-userspace-transfer.c dm: avoid split of quoted strings where possible 2023-07-19 16:22:07 +02:00
dm-log-userspace-transfer.h dm log: userspace add luid to distinguish between concurrent log instances 2009-09-04 20:40:34 +01:00
dm-log-writes.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-log.c dm io: Support IO priority 2024-03-26 18:21:02 -04:00
dm-mpath.c dm: fix undue/missing spaces 2023-07-19 16:22:07 +02:00
dm-mpath.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-path-selector.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
dm-path-selector.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-ps-historical-service-time.c dm mpath: provide high-resolution timer to HST for bio-based 2022-05-09 15:39:23 -04:00
dm-ps-io-affinity.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-ps-queue-length.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-ps-round-robin.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-ps-service-time.c dm: fix undue/missing spaces 2023-07-19 16:22:07 +02:00
dm-raid.c dm-raid: fix lockdep waring in "pers->hot_add_disk" 2024-04-03 15:19:31 +02:00
dm-raid1.c dm io: Support IO priority 2024-03-26 18:21:02 -04:00
dm-region-hash.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-rq.c Revert "dm: requeue IO if mapping table not yet available" 2024-10-17 15:21:12 +02:00
dm-rq.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-snap-persistent.c dm io: Support IO priority 2024-03-26 18:21:02 -04:00
dm-snap-transient.c dm: avoid split of quoted strings where possible 2023-07-19 16:22:07 +02:00
dm-snap.c dm snapshot: fix lockup in dm_exception_table_exit 2024-04-03 15:19:39 +02:00
dm-stats.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-stats.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-stripe.c dm: avoid split of quoted strings where possible 2023-07-19 16:22:07 +02:00
dm-switch.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-sysfs.c dm sysfs: use default_groups in kobj_type 2022-01-06 09:48:55 -05:00
dm-table.c dm: address indent/space issues 2024-03-26 18:21:02 -04:00
dm-target.c dax: introduce DAX_RECOVERY_WRITE dax access mode 2022-05-16 13:35:56 -07:00
dm-thin-metadata.c dm thin metadata: Fix ABBA deadlock by resetting dm_bufio_client 2024-01-01 12:39:05 +00:00
dm-thin-metadata.h dm thin metadata: remove unused dm_thin_remove_block and __remove 2022-02-22 13:55:50 -05:00
dm-thin.c dm thin: Add missing destroy_work_on_stack() 2024-12-14 19:54:16 +01:00
dm-uevent.c dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-uevent.h dm: fix undue/missing spaces 2023-07-19 16:22:07 +02:00
dm-unstripe.c dm-unstriped: cast an operand to sector_t to prevent potential uint32_t overflow 2024-11-14 13:15:16 +01:00
dm-verity-fec.c dm-verity: align struct dm_verity_fec_io properly 2023-12-08 08:51:14 +01:00
dm-verity-fec.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
dm-verity-loadpin.c dm: verity-loadpin: Add NULL pointer check for 'bdev' parameter 2023-07-23 13:49:43 +02:00
dm-verity-target.c dm-verity: fix dm_is_verity_target() when dm-verity is builtin 2024-08-03 08:49:43 +02:00
dm-verity-verify-sig.c dm verity: fix require_signatures module_param permissions 2021-05-25 16:14:05 -04:00
dm-verity-verify-sig.h dm verity: Fix compilation warning 2020-08-04 15:48:13 -04:00
dm-verity.h dm-verity, dm-crypt: align "struct bvec_iter" correctly 2024-03-26 18:20:26 -04:00
dm-writecache.c dm io: Support IO priority 2024-03-26 18:21:02 -04:00
dm-zero.c dm: add support for REQ_NOWAIT to various targets 2020-12-04 18:04:35 -05:00
dm-zone.c - Refactor DM core's mempool allocation so that it clearer by not 2022-08-02 14:21:25 -07:00
dm-zoned-metadata.c dm: avoid split of quoted strings where possible 2023-07-19 16:22:07 +02:00
dm-zoned-reclaim.c dm kcopyd: avoid useless atomic operations 2021-06-04 12:07:24 -04:00
dm-zoned-target.c dm zoned: free dmz->ddev array in dmz_put_zoned_devices 2023-10-10 22:00:44 +02:00
dm-zoned.h dm/dm-zoned: Use the enum req_op type 2022-07-14 12:14:31 -06:00
dm.c Revert "dm: requeue IO if mapping table not yet available" 2024-10-17 15:21:12 +02:00
dm.h dm: change "unsigned" to "unsigned int" 2023-04-13 16:55:17 +02:00
Kconfig dm audit: fix Kconfig so DM_AUDIT depends on BLK_DEV_DM 2024-01-20 11:50:08 +01:00
Makefile hardening updates for v5.20-rc1 2022-08-02 14:38:59 -07:00
md-autodetect.c md: return the allocated devices from md_alloc 2022-08-02 17:22:46 -06:00
md-bitmap.c md: fix resync softlockup when bitmap size is less than array size 2024-06-12 11:03:06 +02:00
md-bitmap.h md/raid1-10: submit write io directly if bitmap is not enabled 2023-07-19 16:20:58 +02:00
md-cluster.c fs: dlm: remove DLM_LSFL_FS from uapi 2022-08-23 14:54:54 -05:00
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: pass a block_device to bio_clone_fast 2022-02-04 07:43:18 -07:00
md-linear.c md: add error_handlers for raid0 and linear 2023-09-13 09:42:44 +02:00
md-linear.h md/raid1: Replace zero-length array with flexible-array 2020-05-13 12:02:23 -07:00
md-multipath.c md: remove most calls to bdevname 2022-05-22 23:07:21 -07:00
md-multipath.h md: convert to bioset_init()/mempool_init() 2018-05-30 15:33:32 -06:00
md.c md: clean up invalid BUG_ON in md_ioctl 2024-08-29 17:30:36 +02:00
md.h md: add error_handlers for raid0 and linear 2023-09-13 09:42:44 +02:00
raid0.c md: raid0: account for split bio in iostat accounting 2023-09-13 09:42:44 +02:00
raid0.h md/raid0: add discard support for the 'original' layout 2023-07-23 13:49:37 +02:00
raid1-10.c md/raid1-10: fix casting from randomized structure in raid1_submit_write() 2023-07-19 16:21:45 +02:00
raid1.c md/raid1: Use blk_opf_t for read and write operations 2024-01-25 15:27:43 -08:00
raid1.h md: raid1/raid10: drop pending_cnt 2022-03-08 15:16:54 -08:00
raid5-cache.c md/raid5-cache: use READ_ONCE/WRITE_ONCE for 'conf->log' 2024-08-29 17:30:30 +02:00
raid5-log.h md/raid5-ppl: Drop unused argument from ppl_handle_flush_request() 2022-08-02 17:14:31 -06:00
raid5-ppl.c md/raid5-ppl: Drop unused argument from ppl_handle_flush_request() 2022-08-02 17:14:31 -06:00
raid5.c md/raid5: avoid BUG_ON() while continue reshape after reassembling 2024-08-14 13:52:45 +02:00
raid5.h md/raid5: Cleanup prototype of raid5_get_active_stripe() 2022-09-22 00:05:04 -07:00
raid10.c md/raid10: improve code of mrdev in raid10_sync_request 2024-11-17 15:07:21 +01:00
raid10.h md/raid10: convert resync_lock to use seqlock 2022-09-22 00:05:05 -07:00