Unverified Commit 05883576 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!14563 f2fs: fix to do sanity check on node blkaddr in truncate_node() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Yifan Qiao <qiaoyifan4@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/YICMEFM6OQZYCGPTIBRXTVJCLRCR5AW5/ 
 
https://gitee.com/src-openeuler/kernel/issues/IBEDP8 
 
Link:https://gitee.com/openeuler/kernel/pulls/14563

 

Reviewed-by: default avatarLi Nan <linan122@huawei.com>
Signed-off-by: default avatarLi Nan <linan122@huawei.com>
parents a38e978d ecd00c92

fs/f2fs/node.c

+9 −0
Original line number Diff line number Diff line
@@ -838,6 +838,15 @@ static int truncate_node(struct dnode_of_data *dn) 
	if (err)

		return err;



	if (ni.blk_addr != NEW_ADDR &&

		!f2fs_is_valid_blkaddr(sbi, ni.blk_addr, DATA_GENERIC_ENHANCE)) {

		f2fs_err(sbi,

			"nat entry is corrupted, run fsck to fix it, ino:%u, "

			"nid:%u, blkaddr:%u", ni.ino, ni.nid, ni.blk_addr);

		set_sbi_flag(sbi, SBI_NEED_FSCK);

		return -EFSCORRUPTED;

	}



	/* Deallocate node address */

	f2fs_invalidate_blocks(sbi, ni.blk_addr);

	dec_valid_node_count(sbi, dn->inode, dn->nid == dn->inode->i_ino);