| Message ID | 20220901142216.3351155-4-zhangxiaoxu5@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Fix some bug in FSCTL_VALIDATE_NEGOTIATE_INFO handler | expand |
diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c index c9f400bbb814..7da0ec466887 100644 --- a/fs/ksmbd/smb2pdu.c +++ b/fs/ksmbd/smb2pdu.c @@ -7640,8 +7640,10 @@ int smb2_ioctl(struct ksmbd_work *work) goto out; } - if (out_buf_len < sizeof(struct validate_negotiate_info_rsp)) - return -EINVAL; + if (out_buf_len < sizeof(struct validate_negotiate_info_rsp)) { + ret = -EINVAL; + goto out; + } ret = fsctl_validate_negotiate_info(conn, (struct validate_negotiate_info_req *)&req->Buffer[0],
When the out_buf_len is less than the size of struct validate_negotiate_info_rsp, should goto out to initialize the status in the response header. Fixes: f7db8fd03a4bc ("ksmbd: add validation in smb2_ioctl") Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Cc: <stable@vger.kernel.org> --- fs/ksmbd/smb2pdu.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)