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80fca8a10b
linux/drivers/md/bcache
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Zheng Wang 80fca8a10b bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent 
In some specific situations, the return value of __bch_btree_node_alloc
may be NULL. This may lead to a potential NULL pointer dereference in
caller function like a calling chain :
btree_split->bch_btree_node_alloc->__bch_btree_node_alloc.

Fix it by initializing the return value in __bch_btree_node_alloc.

Fixes: cafe563591 ("bcache: A block layer cache")
Cc: stable@vger.kernel.org
Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
Signed-off-by: Coly Li <colyli@suse.de>
Link: https://lore.kernel.org/r/20230615121223.22502-6-colyli@suse.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-06-15 07:32:00 -06:00
..
alloc.c block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD 2022-04-17 19:49:59 -06:00
bcache_ondisk.h flexible-array transformations for 6.3-rc1 2023-02-25 12:53:42 -08:00
bcache.h bcache: make kobj_type structures constant 2023-06-15 07:30:11 -06:00
bset.c bcache: bset: Fix comment typos 2022-09-19 11:12:35 -06:00
bset.h bcache: move uapi header bcache.h to bcache code directory 2021-10-29 06:43:21 -06:00
btree.c bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent 2023-06-15 07:32:00 -06:00
btree.h bcache: improve multithreaded bch_btree_check() 2022-05-24 06:19:33 -06:00
closure.c bcache: Convert to DEFINE_SHOW_ATTRIBUTE 2020-10-02 14:25:29 -06:00
closure.h
debug.c block: turn bio_kmalloc into a simple kmalloc wrapper 2022-04-17 19:30:41 -06:00
debug.h
extents.c bcache: remove PTR_CACHE 2021-04-11 08:37:55 -06:00
extents.h
features.c bcache: move uapi header bcache.h to bcache code directory 2021-10-29 06:43:21 -06:00
features.h bcache: move uapi header bcache.h to bcache code directory 2021-10-29 06:43:21 -06:00
io.c block: pass a block_device and opf to bio_init 2022-02-02 07:49:59 -07:00
journal.c bcache: Silence memcpy() run-time false positive warnings 2023-01-25 12:24:50 -08:00
journal.h bcache: avoid journal no-space deadlock by reserving 1 journal bucket 2022-05-24 06:19:33 -06:00
Kconfig bcache: remove EXPERIMENTAL for Kconfig option 'Asynchronous device registration' 2022-08-02 17:22:41 -06:00
Makefile bcache: add sysfs file to display feature sets information of cache set 2020-07-25 07:38:21 -06:00
movinggc.c block: remove bio_set_op_attrs 2022-12-07 09:43:12 -07:00
request.c block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
request.h block: switch polling to be bio based 2021-10-18 06:17:36 -06:00
stats.c bcache: use default_groups in kobj_type 2022-01-26 15:56:18 +01:00
stats.h bcache: Remove dead references to cache_readaheads 2023-06-15 07:30:11 -06:00
super.c bcache: Remove unnecessary NULL point check in node allocations 2023-06-15 07:30:43 -06:00
sysfs.c bcache: Convert to use sysfs_emit()/sysfs_emit_at() APIs 2023-06-15 07:30:11 -06:00
sysfs.h bcache: make kobj_type structures constant 2023-06-15 07:30:11 -06:00
trace.c
util.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
util.h for-5.16/bdev-size-2021-10-29 2021-11-01 09:50:37 -07:00
writeback.c block: remove bio_set_op_attrs 2022-12-07 09:43:12 -07:00
writeback.h bcache: improve multithreaded bch_sectors_dirty_init() 2022-05-24 06:19:33 -06:00