X-Git-Url: https://repo.jachan.dev/linux.git/blobdiff_plain/1d239c1eb873c7d6c6cbc80d68330c939fd86136..f168420c62e7:/fs/ksmbd/vfs.c

diff --git a/fs/ksmbd/vfs.c b/fs/ksmbd/vfs.c
index 7c849024999f..78d01033604c 100644
--- a/fs/ksmbd/vfs.c
+++ b/fs/ksmbd/vfs.c
@@ -481,12 +481,11 @@ int ksmbd_vfs_write(struct ksmbd_work *work, struct ksmbd_file *fp,
 		    char *buf, size_t count, loff_t *pos, bool sync,
 		    ssize_t *written)
 {
-	struct ksmbd_session *sess = work->sess;
 	struct file *filp;
 	loff_t	offset = *pos;
 	int err = 0;
 
-	if (sess->conn->connection_type) {
+	if (work->conn->connection_type) {
 		if (!(fp->daccess & FILE_WRITE_DATA_LE)) {
 			pr_err("no right to write(%pd)\n",
 			       fp->filp->f_path.dentry);
@@ -1540,6 +1539,11 @@ int ksmbd_vfs_get_sd_xattr(struct ksmbd_conn *conn,
 	}
 
 	*pntsd = acl.sd_buf;
+	if (acl.sd_size < sizeof(struct smb_ntsd)) {
+		pr_err("sd size is invalid\n");
+		goto out_free;
+	}
+
 	(*pntsd)->osidoffset = cpu_to_le32(le32_to_cpu((*pntsd)->osidoffset) -
 					   NDR_NTSD_OFFSETOF);
 	(*pntsd)->gsidoffset = cpu_to_le32(le32_to_cpu((*pntsd)->gsidoffset) -