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: USB: serial: visor: handle potential invalid device configuration From: Johan Hovold Message-Id: <20180502075004.GB2285@localhost> Date: Wed, 2 May 2018 09:50:04 +0200 To: Greg Kroah-Hartman Cc: Johan Hovold , Andrey Konovalov , linux-usb@vger.kernel.org List-ID: T24gU3VuLCBBcHIgMjksIDIwMTggYXQgMDU6NDE6NTVQTSArMDIwMCwgR3JlZyBLcm9haC1IYXJ0 bWFuIHdyb3RlOgo+IElmIHdlIGdldCBhbiBpbnZhbGlkIGRldmljZSBjb25maWd1cmF0aW9uIGZy b20gYSBwYWxtIDMgdHlwZSBkZXZpY2UsIHdlCj4gbWlnaHQgaW5jb3JyZWN0bHkgcGFyc2UgdGhp bmdzLCBhbmQgd2UgaGF2ZSB0aGUgcG90ZW50aWFsIHRvIGNyYXNoIGluCj4gImludGVyZXN0aW5n IiB3YXlzLgo+IAo+IEZpeCB0aGlzIHVwIGJ5IHZlcmlmeWluZyB0aGUgc2l6ZSBvZiB0aGUgY29u ZmlndXJhdGlvbiBwYXNzZWQgdG8gdXMgYnkKPiB0aGUgZGV2aWNlLCBhbmQgb25seSBpZiBpdCBp cyBjb3JyZWN0LCB3aWxsIHdlIGhhbmRsZSBpdC4KPiAKPiBSZXBvcnRlZC1ieTogQW5kcmV5IEtv bm92YWxvdiA8YW5kcmV5a252bEBnb29nbGUuY29tPgo+IFJldmlld2VkLWJ5OiBBbmRyZXkgS29u b3ZhbG92IDxhbmRyZXlrbnZsQGdvb2dsZS5jb20+Cj4gU2lnbmVkLW9mZi1ieTogR3JlZyBLcm9h aC1IYXJ0bWFuIDxncmVna2hAbGludXhmb3VuZGF0aW9uLm9yZz4KPiAKPiAtLS0KPiAKPiBIZXJl IGlzIG15IGxvbmctZm9yZ290dGVuIHBhdGNoIGZvciB0aGUgdmlzb3IgZHJpdmVyIHRvIHJlc29s dmUgYW4gaXNzdWUKPiB0aGF0IEFuZHJleSBmb3VuZCBiYWNrIGluIFNlcHRlbWJlciBvZiAyMDE3 LiAgU29ycnkgZm9yIHRoZSBsb25nIGRlbGF5Lgo+IAo+IEpvaGFuLCBJIGluY29ycG9yYXRlZCB5 b3VyIHJldmlldyBjb21tZW50cyBvZiBteSBvcmlnaW5hbCBvbmUtb2ZmIHBhdGNoCj4gaGVyZSBh cyB3ZWxsLgoKVGhhbmtzIGZvciB0aGUgdXBkYXRlLiBJJ3ZlIGFwcGxpZWQgdGhpcyBmb3IgNC4x Ny1yYyBub3cgYWZ0ZXIgYWRkaW5nIGEKc3RhYmxlIHRhZyBhbmQgYSBjb21tZW50IGFib3V0IHRo aXMgb25lIGFsc28gZml4aW5nIGEgc2xhYiBpbmZvIGxlYWsKKHRocm91Z2ggdGhhdCBkZXZfaW5m byBpbiB0aGUgcG9ydCBsb29wIGJlbG93KS4KCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvdXNiL3Nl cmlhbC92aXNvci5jIGIvZHJpdmVycy91c2Ivc2VyaWFsL3Zpc29yLmMKPiBpbmRleCBmNTM3M2Vk MmNkNDUuLjhkZGJlY2MyNWQ4OSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL3VzYi9zZXJpYWwvdmlz b3IuYwo+ICsrKyBiL2RyaXZlcnMvdXNiL3NlcmlhbC92aXNvci5jCj4gQEAgLTMzNSw0NyArMzM1 LDQ4IEBAIHN0YXRpYyBpbnQgcGFsbV9vc18zX3Byb2JlKHN0cnVjdCB1c2Jfc2VyaWFsICpzZXJp YWwsCj4gIAkJZ290byBleGl0Owo+ICAJfQo+ICAKPiAtCWlmIChyZXR2YWwgPT0gc2l6ZW9mKCpj b25uZWN0aW9uX2luZm8pKSB7Cj4gLQkJCWNvbm5lY3Rpb25faW5mbyA9IChzdHJ1Y3Qgdmlzb3Jf Y29ubmVjdGlvbl9pbmZvICopCj4gLQkJCQkJCQl0cmFuc2Zlcl9idWZmZXI7Cj4gLQo+IC0JCW51 bV9wb3J0cyA9IGxlMTZfdG9fY3B1KGNvbm5lY3Rpb25faW5mby0+bnVtX3BvcnRzKTsKPiAtCQlm b3IgKGkgPSAwOyBpIDwgbnVtX3BvcnRzOyArK2kpIHsKPiAtCQkJc3dpdGNoICgKPiAtCQkJICAg Y29ubmVjdGlvbl9pbmZvLT5jb25uZWN0aW9uc1tpXS5wb3J0X2Z1bmN0aW9uX2lkKSB7Cj4gLQkJ CWNhc2UgVklTT1JfRlVOQ1RJT05fR0VORVJJQzoKPiAtCQkJCXN0cmluZyA9ICJHZW5lcmljIjsK PiAtCQkJCWJyZWFrOwo+IC0JCQljYXNlIFZJU09SX0ZVTkNUSU9OX0RFQlVHR0VSOgo+IC0JCQkJ c3RyaW5nID0gIkRlYnVnZ2VyIjsKPiAtCQkJCWJyZWFrOwo+IC0JCQljYXNlIFZJU09SX0ZVTkNU SU9OX0hPVFNZTkM6Cj4gLQkJCQlzdHJpbmcgPSAiSG90U3luYyI7Cj4gLQkJCQlicmVhazsKPiAt CQkJY2FzZSBWSVNPUl9GVU5DVElPTl9DT05TT0xFOgo+IC0JCQkJc3RyaW5nID0gIkNvbnNvbGUi Owo+IC0JCQkJYnJlYWs7Cj4gLQkJCWNhc2UgVklTT1JfRlVOQ1RJT05fUkVNT1RFX0ZJTEVfU1lT Ogo+IC0JCQkJc3RyaW5nID0gIlJlbW90ZSBGaWxlIFN5c3RlbSI7Cj4gLQkJCQlicmVhazsKPiAt CQkJZGVmYXVsdDoKPiAtCQkJCXN0cmluZyA9ICJ1bmtub3duIjsKPiAtCQkJCWJyZWFrOwo+IC0J CQl9Cj4gLQkJCWRldl9pbmZvKGRldiwgIiVzOiBwb3J0ICVkLCBpcyBmb3IgJXMgdXNlXG4iLAo+ IC0JCQkJc2VyaWFsLT50eXBlLT5kZXNjcmlwdGlvbiwKPiAtCQkJCWNvbm5lY3Rpb25faW5mby0+ Y29ubmVjdGlvbnNbaV0ucG9ydCwgc3RyaW5nKTsKPiAtCQl9CgpKb2hhbgotLS0KVG8gdW5zdWJz Y3JpYmUgZnJvbSB0aGlzIGxpc3Q6IHNlbmQgdGhlIGxpbmUgInVuc3Vic2NyaWJlIGxpbnV4LXVz YiIgaW4KdGhlIGJvZHkgb2YgYSBtZXNzYWdlIHRvIG1ham9yZG9tb0B2Z2VyLmtlcm5lbC5vcmcK TW9yZSBtYWpvcmRvbW8gaW5mbyBhdCAgaHR0cDovL3ZnZXIua2VybmVsLm9yZy9tYWpvcmRvbW8t aW5mby5odG1sCg==