Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data From: Greg Kroah-Hartman Message-Id: <20181209163245.GA25484@kroah.com> Date: Sun, 9 Dec 2018 17:32:45 +0100 To: "David S. Miller" , netdev@vger.kernel.org Cc: linux-usb@vger.kernel.org, Sebastian Andrzej Siewior , Hui Peng , Mathias Payer List-ID: RnJvbTogSHVpIFBlbmcgPGJlbnF1aWtlQGdtYWlsLmNvbT4KClRoZSBmdW5jdGlvbiBoc29fcHJv YmUgcmVhZHMgaWZfbnVtIGZyb20gdGhlIFVTQiBkZXZpY2UgKGFzIGFuIHU4KSBhbmQgdXNlcwpp dCB3aXRob3V0IGEgbGVuZ3RoIGNoZWNrIHRvIGluZGV4IGFuIGFycmF5LCByZXN1bHRpbmcgaW4g YW4gT09CIG1lbW9yeSByZWFkCmluIGhzb19wcm9iZSBvciBoc29fZ2V0X2NvbmZpZ19kYXRhLiBB ZGRlZCBhIGxlbmd0aCBjaGVjayBmb3IgYm90aCBsb2NhdGlvbnMKYW5kIHVwZGF0ZWQgaHNvX3By b2JlIHRvIGJhaWwgb24gZXJyb3IuCgpSZXBvcnRlZC1ieTogSHVpIFBlbmcgPGJlbnF1aWtlQGdt YWlsLmNvbT4KUmVwb3J0ZWQtYnk6IE1hdGhpYXMgUGF5ZXIgPG1hdGhpYXMucGF5ZXJAbmViZWx3 ZWx0Lm5ldD4KU2lnbmVkLW9mZi1ieTogSHVpIFBlbmcgPGJlbnF1aWtlQGdtYWlsLmNvbT4KU2ln bmVkLW9mZi1ieTogTWF0aGlhcyBQYXllciA8bWF0aGlhcy5wYXllckBuZWJlbHdlbHQubmV0PgpT aWduZWQtb2ZmLWJ5OiBHcmVnIEtyb2FoLUhhcnRtYW4gPGdyZWdraEBsaW51eGZvdW5kYXRpb24u b3JnPgotLS0KIGRyaXZlcnMvbmV0L3VzYi9oc28uYyB8IDE4ICsrKysrKysrKysrKysrKystLQog MSBmaWxlIGNoYW5nZWQsIDE2IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCgpkaWZmIC0t Z2l0IGEvZHJpdmVycy9uZXQvdXNiL2hzby5jIGIvZHJpdmVycy9uZXQvdXNiL2hzby5jCmluZGV4 IDE4NGMyNGJhY2ExNS4uMTY4ZjkwODFkNGVhIDEwMDY0NAotLS0gYS9kcml2ZXJzL25ldC91c2Iv aHNvLmMKKysrIGIvZHJpdmVycy9uZXQvdXNiL2hzby5jCkBAIC0yODA3LDYgKzI4MDcsMTIgQEAg c3RhdGljIGludCBoc29fZ2V0X2NvbmZpZ19kYXRhKHN0cnVjdCB1c2JfaW50ZXJmYWNlICppbnRl cmZhY2UpCiAJCXJldHVybiAtRUlPOwogCX0KIAorCS8qIGNoZWNrIGlmIHdlIGhhdmUgYSB2YWxp ZCBpbnRlcmZhY2UgKi8KKwlpZiAoaWZfbnVtID4gMTYpIHsKKwkJa2ZyZWUoY29uZmlnX2RhdGEp OworCQlyZXR1cm4gLUVJTlZBTDsKKwl9CisKIAlzd2l0Y2ggKGNvbmZpZ19kYXRhW2lmX251bV0p IHsKIAljYXNlIDB4MDoKIAkJcmVzdWx0ID0gMDsKQEAgLTI4NzcsMTAgKzI4ODMsMTggQEAgc3Rh dGljIGludCBoc29fcHJvYmUoc3RydWN0IHVzYl9pbnRlcmZhY2UgKmludGVyZmFjZSwKIAogCS8q IEdldCB0aGUgaW50ZXJmYWNlL3BvcnQgc3BlY2lmaWNhdGlvbiBmcm9tIGVpdGhlciBkcml2ZXJf aW5mbyBvciBmcm9tCiAJICogdGhlIGRldmljZSBpdHNlbGYgKi8KLQlpZiAoaWQtPmRyaXZlcl9p bmZvKQorCWlmIChpZC0+ZHJpdmVyX2luZm8pIHsKKwkJLyogaWZfbnVtIGlzIGNvbnRyb2xsZWQg YnkgdGhlIGRldmljZSwgZHJpdmVyX2luZm8gaXMgYSAwIHRlcm1pbmF0ZWQKKwkJICogYXJyYXku IE1ha2Ugc3VyZSwgdGhlIGFjY2VzcyBpcyBpbiBib3VuZHMhICovCisJCWZvciAoaSA9IDA7IGkg PD0gaWZfbnVtOyArK2kpCisJCQlpZiAoKCh1MzIgKikoaWQtPmRyaXZlcl9pbmZvKSlbaV0gPT0g MCkKKwkJCQlnb3RvIGV4aXQ7CiAJCXBvcnRfc3BlYyA9ICgodTMyICopKGlkLT5kcml2ZXJfaW5m bykpW2lmX251bV07Ci0JZWxzZQorCX0gZWxzZSB7CiAJCXBvcnRfc3BlYyA9IGhzb19nZXRfY29u ZmlnX2RhdGEoaW50ZXJmYWNlKTsKKwkJaWYgKElTX0VSUl9WQUxVRSgobG9uZylwb3J0X3NwZWMp KQorCQkJZ290byBleGl0OworCX0KIAogCS8qIENoZWNrIGlmIHdlIG5lZWQgdG8gc3dpdGNoIHRv IGFsdCBpbnRlcmZhY2VzIHByaW9yIHRvIHBvcnQKIAkgKiBjb25maWd1cmF0aW9uICovCg==