Unverified Commit a0db09dd authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!11570 NFSD: Fix ia_size underflow 

Merge Pull Request from: @ci-robot 
 
PR sync from: Xia Fukun <xiafukun@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/YP4Z5KD2V7472DMDCD7IAN77ZACE54QQ/ 
 
https://gitee.com/src-openeuler/kernel/issues/IADGCI 
 
Link:https://gitee.com/openeuler/kernel/pulls/11570

 

Reviewed-by: default avatarZucheng Zheng <zhengzucheng@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parents 60f7b7ea 5b47629b

fs/nfsd/vfs.c

+4 −0
Original line number Diff line number Diff line
@@ -448,6 +448,10 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap, 
			.ia_size	= iap->ia_size,

		};



		host_err = -EFBIG;

		if (iap->ia_size < 0)

			goto out_unlock;



		host_err = notify_change(dentry, &size_attr, NULL);

		if (host_err)

			goto out_unlock;