Unverified Commit 33c569dd authored Jul 19, 2024 by openeuler-ci-bot Committed by Gitee Jul 19, 2024

!10176 f2fs: compress: don't allow unaligned truncation on released compress inode

Merge Pull Request from: @ci-robot 
 
PR sync from: Cai Xinchen <caixinchen1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/XAHHPMOM3JP5BTV2IJWZL3QJHEQXK47E/ 
 
https://gitee.com/openeuler/kernel/issues/IA74DQ 
 
Link:https://gitee.com/openeuler/kernel/pulls/10176

 

Reviewed-by: Zhang Peng <zhangpeng362@huawei.com>
Signed-off-by: Zhang Peng <zhangpeng362@huawei.com>

parents 782126b0 5258b482

fs/f2fs/file.c

+8 −3

Original line number	Diff line number	Diff line
		@@ -931,9 +931,14 @@ int f2fs_setattr(struct mnt_idmap idmap, struct dentry dentry,
		ATTR_GID \| ATTR_TIMES_SET))))
		return -EPERM;

		if ((attr->ia_valid & ATTR_SIZE) &&
		!f2fs_is_compress_backend_ready(inode))
		if ((attr->ia_valid & ATTR_SIZE)) {
		if (!f2fs_is_compress_backend_ready(inode))
		return -EOPNOTSUPP;
		if (is_inode_flag_set(inode, FI_COMPRESS_RELEASED) &&
		!IS_ALIGNED(attr->ia_size,
		F2FS_BLK_TO_BYTES(F2FS_I(inode)->i_cluster_size)))
		return -EINVAL;
		}

		err = setattr_prepare(idmap, dentry, attr);
		if (err)