From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: usbip: usbip_detach: fix to check for invalid ports From: Shuah Khan Message-Id: <20180530030308.5566-1-shuah@kernel.org> Date: Tue, 29 May 2018 21:03:08 -0600 To: shuah@kernel.org, valentina.manea.m@gmail.com Cc: gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org List-ID: dXNiaXAgZGV0YWNoIGRvZXNuJ3QgY2hlY2sgZm9yIGludmFsaWQgcG9ydHMgYW5kIHBvcnRzIHRo YXQgYXJlIGFscmVhZHkKZGV0YWNoZWQuIEl0IGF0dGVtcHRzIHRvIHJlbW92ZSBzdGF0ZSBmaWxl KHMpIHdpdGhvdXQgdmFsaWRhdGluZyB0aGUgcG9ydAphbmQgc2VuZHMgZGV0YWNoIHJlcXVlc3Qg dG8gdGhlIGRyaXZlciBmb3IgcG9ydHMgdGhhdCBhcmUgYWxyZWFkeSBkZXRhY2hlZC4KCkFkZCBj aGVjayBmb3IgaW52YWxpZCBwb3J0cyAocG9ydCA+IG1heHBvcnRzKSBhbmQgcG9ydHMgdGhhdCBh cmUgYWxyZWFkeQpkZXRhY2hlZCAoc3RhdHVzID09IFZERVZfU1RfTlVMTCkuIERvbid0IHJlbW92 ZSBzdGF0ZSBmaWxlcyBhbmQgZG9uJ3Qgc2VuZApkZXRhY2ggcmVxdWVzdCBmb3IgaW52YWxpZCBw b3J0cyBhbmQgcG9ydHMgdGhhdCBhcmUgYWxyZWFkeSBkZXRhY2hlZC4KCkFkZCBlcnJvciBhbmQg aW5mb3JtYXRpb24gbWVzc2FnZXMgdGhhdCBtYWtlIHNlbnNlLgoKU2lnbmVkLW9mZi1ieTogU2h1 YWggS2hhbiAoU2Ftc3VuZyBPU0cpIDxzaHVhaEBrZXJuZWwub3JnPgotLS0KIHRvb2xzL3VzYi91 c2JpcC9zcmMvdXNiaXBfZGV0YWNoLmMgfCAzOSArKysrKysrKysrKysrKysrKysrKysrKysrKysr Ky0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDMwIGluc2VydGlvbnMoKyksIDkgZGVsZXRpb25z KC0pCgpkaWZmIC0tZ2l0IGEvdG9vbHMvdXNiL3VzYmlwL3NyYy91c2JpcF9kZXRhY2guYyBiL3Rv b2xzL3VzYi91c2JpcC9zcmMvdXNiaXBfZGV0YWNoLmMKaW5kZXggNmE4ZGI4NThjYWE1Li43Nzdm NzI4NmEwYzUgMTAwNjQ0Ci0tLSBhL3Rvb2xzL3VzYi91c2JpcC9zcmMvdXNiaXBfZGV0YWNoLmMK KysrIGIvdG9vbHMvdXNiL3VzYmlwL3NyYy91c2JpcF9kZXRhY2guYwpAQCAtNDYsNiArNDYsOSBA QCBzdGF0aWMgaW50IGRldGFjaF9wb3J0KGNoYXIgKnBvcnQpCiAJaW50IHJldCA9IDA7CiAJdWlu dDhfdCBwb3J0bnVtOwogCWNoYXIgcGF0aFtQQVRIX01BWCsxXTsKKwlpbnQgaTsKKwlzdHJ1Y3Qg dXNiaXBfaW1wb3J0ZWRfZGV2aWNlICppZGV2OworCWludCBmb3VuZCA9IDA7CiAKIAl1bnNpZ25l ZCBpbnQgcG9ydF9sZW4gPSBzdHJsZW4ocG9ydCk7CiAKQEAgLTU1LDI4ICs1OCw0NiBAQCBzdGF0 aWMgaW50IGRldGFjaF9wb3J0KGNoYXIgKnBvcnQpCiAJCQlyZXR1cm4gLTE7CiAJCX0KIAotCS8q IGNoZWNrIG1heCBwb3J0ICovCi0KIAlwb3J0bnVtID0gYXRvaShwb3J0KTsKIAotCS8qIHJlbW92 ZSB0aGUgcG9ydCBzdGF0ZSBmaWxlICovCi0KLQlzbnByaW50ZihwYXRoLCBQQVRIX01BWCwgVkhD SV9TVEFURV9QQVRIIi9wb3J0JWQiLCBwb3J0bnVtKTsKLQotCXJlbW92ZShwYXRoKTsKLQlybWRp cihWSENJX1NUQVRFX1BBVEgpOwotCiAJcmV0ID0gdXNiaXBfdmhjaV9kcml2ZXJfb3BlbigpOwog CWlmIChyZXQgPCAwKSB7CiAJCWVycigib3BlbiB2aGNpX2RyaXZlciIpOwogCQlyZXR1cm4gLTE7 CiAJfQogCisJLyogY2hlY2sgZm9yIGludmFsaWQgcG9ydCAqLworCWZvciAoaSA9IDA7IGkgPCB2 aGNpX2RyaXZlci0+bnBvcnRzOyBpKyspIHsKKwkJaWRldiA9ICZ2aGNpX2RyaXZlci0+aWRldltp XTsKKworCQlpZiAoaWRldi0+cG9ydCA9PSBwb3J0bnVtKSB7CisJCQlmb3VuZCA9IDE7CisJCQlp ZiAoaWRldi0+c3RhdHVzICE9IFZERVZfU1RfTlVMTCkKKwkJCQlicmVhazsKKwkJCWluZm8oIlBv cnQgJWQgaXMgYWxyZWFkeSBkZXRhY2hlZCFcbiIsIGlkZXYtPnBvcnQpOworCQkJZ290byBjYWxs X2RyaXZlcl9jbG9zZTsKKwkJfQorCX0KKworCWlmICghZm91bmQpIHsKKwkJZXJyKCJJbnZhbGlk IHBvcnQgJXMgPiBtYXhwb3J0cyAlZCIsCisJCQlwb3J0LCB2aGNpX2RyaXZlci0+bnBvcnRzKTsK KwkJZ290byBjYWxsX2RyaXZlcl9jbG9zZTsKKwl9CisKKwkvKiByZW1vdmUgdGhlIHBvcnQgc3Rh dGUgZmlsZSAqLworCXNucHJpbnRmKHBhdGgsIFBBVEhfTUFYLCBWSENJX1NUQVRFX1BBVEgiL3Bv cnQlZCIsIHBvcnRudW0pOworCisJcmVtb3ZlKHBhdGgpOworCXJtZGlyKFZIQ0lfU1RBVEVfUEFU SCk7CisKIAlyZXQgPSB1c2JpcF92aGNpX2RldGFjaF9kZXZpY2UocG9ydG51bSk7CiAJaWYgKHJl dCA8IDApIHsKIAkJcmV0ID0gLTE7CisJCWVycigiUG9ydCAlZCBkZXRhY2ggcmVxdWVzdCBmYWls ZWQhXG4iLCBwb3J0bnVtKTsKIAkJZ290byBjYWxsX2RyaXZlcl9jbG9zZTsKIAl9CisJaW5mbygi UG9ydCAlZCBpcyBub3cgZGV0YWNoZWQhXG4iLCBwb3J0bnVtKTsKIAogY2FsbF9kcml2ZXJfY2xv c2U6CiAJdXNiaXBfdmhjaV9kcml2ZXJfY2xvc2UoKTsK