Unverified Commit 9b2f76eb authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!12509 exfat: fix potential deadlock on __exfat_get_dentry_set 

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhang Zekun <zhangzekun11@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/3CE5W7LKJMXZ6MLDLFTYYVXKQ6TKY7O2/ 
 
https://gitee.com/src-openeuler/kernel/issues/IAKPQ2 
 
Link:https://gitee.com/openeuler/kernel/pulls/12509

 

Reviewed-by: default avatarWeilong Chen <chenweilong@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 5b73b65d fff0c6cc

fs/exfat/dir.c

+1 −1
Original line number Diff line number Diff line
@@ -873,7 +873,7 @@ struct exfat_entry_set_cache *exfat_get_dentry_set(struct super_block *sb, 


	num_bh = EXFAT_B_TO_BLK_ROUND_UP(off + num_entries * DENTRY_SIZE, sb);

	if (num_bh > ARRAY_SIZE(es->__bh)) {

		es->bh = kmalloc_array(num_bh, sizeof(*es->bh), GFP_KERNEL);

		es->bh = kmalloc_array(num_bh, sizeof(*es->bh), GFP_NOFS);

		if (!es->bh) {

			brelse(bh);

			kfree(es);