From: Coly Li colyli@suse.de
commit 7d6b902ea0e02b2a25c480edf471cbaa4ebe6b3c upstream.
The local variables check_state (in bch_btree_check()) and state (in bch_sectors_dirty_init()) should be fully filled by 0, because before allocating them on stack, they were dynamically allocated by kzalloc().
Signed-off-by: Coly Li colyli@suse.de Link: https://lore.kernel.org/r/20220527152818.27545-2-colyli@suse.de Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/md/bcache/btree.c | 1 + drivers/md/bcache/writeback.c | 1 + 2 files changed, 2 insertions(+)
--- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -2017,6 +2017,7 @@ int bch_btree_check(struct cache_set *c) if (c->root->level == 0) return 0;
+ memset(&check_state, 0, sizeof(struct btree_check_state)); check_state.c = c; check_state.total_threads = bch_btree_chkthread_nr(); check_state.key_idx = 0; --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -901,6 +901,7 @@ void bch_sectors_dirty_init(struct bcach return; }
+ memset(&state, 0, sizeof(struct bch_dirty_init_state)); state.c = c; state.d = d; state.total_threads = bch_btre_dirty_init_thread_nr();