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Commit b81de061 authored by Konstantin Khlebnikov's avatar Konstantin Khlebnikov Committed by Miklos Szeredi
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ovl: copy new uid/gid into overlayfs runtime inode 



Overlayfs must update uid/gid after chown, otherwise functions
like inode_owner_or_capable() will check user against stale uid.
Catched by xfstests generic/087, it chowns file and calls utimes.

Signed-off-by: default avatarKonstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: default avatarMiklos Szeredi <miklos@szeredi.hu>
Cc: <stable@vger.kernel.org>
parent 45d11738

fs/overlayfs/inode.c

+2 −0
Original line number Diff line number Diff line
@@ -65,6 +65,8 @@ int ovl_setattr(struct dentry *dentry, struct iattr *attr) 


		inode_lock(upperdentry->d_inode);

		err = notify_change(upperdentry, attr, NULL);

		if (!err)

			ovl_copyattr(upperdentry->d_inode, dentry->d_inode);

		inode_unlock(upperdentry->d_inode);

	}

	ovl_drop_write(dentry);