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: xhci: tegra: Prevent error pointer dereference From: Greg Kroah-Hartman Message-Id: <20190220163147.GA3272@kroah.com> Date: Wed, 20 Feb 2019 17:31:47 +0100 To: Thierry Reding Cc: Mathias Nyman , Jonathan Hunter , linux-usb@vger.kernel.org, linux-tegra@vger.kernel.org List-ID: T24gV2VkLCBGZWIgMjAsIDIwMTkgYXQgMDU6Mjc6MDJQTSArMDEwMCwgVGhpZXJyeSBSZWRpbmcg d3JvdGU6Cj4gT24gV2VkLCBGZWIgMjAsIDIwMTkgYXQgMDU6MTY6MTJQTSArMDEwMCwgR3JlZyBL cm9haC1IYXJ0bWFuIHdyb3RlOgo+ID4gT24gV2VkLCBGZWIgMjAsIDIwMTkgYXQgMDI6NDg6NDFQ TSArMDEwMCwgVGhpZXJyeSBSZWRpbmcgd3JvdGU6Cj4gPiA+IEZyb206IFRoaWVycnkgUmVkaW5n IDx0cmVkaW5nQG52aWRpYS5jb20+Cj4gPiA+IAo+ID4gPiBEdXJpbmcgaW5pdGlhbGl6YXRpb24s IHRoZSBob3N0IGFuZCBzdXBlci1zcGVlZCBwb3dlciBkb21haW5zIHdpbGwKPiA+ID4gY29udGFp biBhbiBFUlJfUFRSKCkgZW5jb2RlZCBlcnJvciBjb2RlIHJhdGhlciB0aGFuIGJlaW5nIE5VTEwu IFRvCj4gPiA+IGF2b2lkIGEgY3Jhc2gsIHVzZSBhICFJU19FUlJfT1JfTlVMTCgpIGNvbmRpdGlv biBkdXJpbmcgY2xlYW51cC4KPiA+ID4gCj4gPiA+IFNpZ25lZC1vZmYtYnk6IFRoaWVycnkgUmVk aW5nIDx0cmVkaW5nQG52aWRpYS5jb20+Cj4gPiA+IC0tLQo+ID4gPiAgZHJpdmVycy91c2IvaG9z dC94aGNpLXRlZ3JhLmMgfCA0ICsrLS0KPiA+ID4gIDEgZmlsZSBjaGFuZ2VkLCAyIGluc2VydGlv bnMoKyksIDIgZGVsZXRpb25zKC0pCj4gPiA+IAo+ID4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy91 c2IvaG9zdC94aGNpLXRlZ3JhLmMgYi9kcml2ZXJzL3VzYi9ob3N0L3hoY2ktdGVncmEuYwo+ID4g PiBpbmRleCA5MzhmZjA2YzAzNDkuLmVmYjBjYWQ4NzEwZSAxMDA2NDQKPiA+ID4gLS0tIGEvZHJp dmVycy91c2IvaG9zdC94aGNpLXRlZ3JhLmMKPiA+ID4gKysrIGIvZHJpdmVycy91c2IvaG9zdC94 aGNpLXRlZ3JhLmMKPiA+ID4gQEAgLTk0MSw5ICs5NDEsOSBAQCBzdGF0aWMgdm9pZCB0ZWdyYV94 dXNiX3Bvd2VyZG9tYWluX3JlbW92ZShzdHJ1Y3QgZGV2aWNlICpkZXYsCj4gPiA+ICAJCWRldmlj ZV9saW5rX2RlbCh0ZWdyYS0+Z2VucGRfZGxfc3MpOwo+ID4gPiAgCWlmICh0ZWdyYS0+Z2VucGRf ZGxfaG9zdCkKPiA+ID4gIAkJZGV2aWNlX2xpbmtfZGVsKHRlZ3JhLT5nZW5wZF9kbF9ob3N0KTsK PiA+ID4gLQlpZiAodGVncmEtPmdlbnBkX2Rldl9zcykKPiA+ID4gKwlpZiAoIUlTX0VSUl9PUl9O VUxMKHRlZ3JhLT5nZW5wZF9kZXZfc3MpKQo+ID4gPiAgCQlkZXZfcG1fZG9tYWluX2RldGFjaCh0 ZWdyYS0+Z2VucGRfZGV2X3NzLCB0cnVlKTsKPiA+ID4gLQlpZiAodGVncmEtPmdlbnBkX2Rldl9o b3N0KQo+ID4gPiArCWlmICghSVNfRVJSX09SX05VTEwodGVncmEtPmdlbnBkX2Rldl9ob3N0KSkK PiA+ID4gIAkJZGV2X3BtX2RvbWFpbl9kZXRhY2godGVncmEtPmdlbnBkX2Rldl9ob3N0LCB0cnVl KTsKPiA+ID4gIH0KPiA+IAo+ID4gU2hvdWxkIHRoaXMgZ28gdG8gb2xkZXIga2VybmVscz8gIElm IHNvLCBhbnkgaGludCBhcyB0byB3aGF0IGNvbW1pdCB0aGlzCj4gPiAiZml4ZXM6Ij8KPiAKPiBU ZWNobmljYWxseSB0aGlzOgo+IAo+IEZpeGVzOiA2NDk0YTlhZDg2ZGUgKCJ1c2I6IHhoY2k6IHRl Z3JhOiBBZGQgZ2VucGQgc3VwcG9ydCIpCj4gCj4gd2hpY2ggd2FzIG1lcmdlZCBpbnRvIHY0LjIw Lgo+IAo+IEhvd2V2ZXIsIEkgaGF2ZSBuZXZlciBzZWVuIHRoaXMgYWN0dWFsbHkgY3Jhc2ggb24g Y3VycmVudCBrZXJuZWxzIGFuZAo+IG9ubHkgY2FtZSBhY3Jvc3MgaXQgd2hpbGUgd29ya2luZyBv biBhIGNoYW5nZSB0byByZXNldCBjb250cm9scyB3aGljaAo+IGNhbiBjYXVzZSBkZXZfcG1fZG9t YWluX2F0dGFjaF9ieV9uYW1lKCkgdG8gZmFpbC4gVGhhdCBmdW5jdGlvbiBjYW4ndAo+IGZhaWwg aW4gY3VycmVudCBrZXJuZWxzLCBzbyBJIGRvbid0IHRoaW5rIHdlIG5lZWQgdG8gZml4IHRoaXMg aW4gb2xkCj4ga2VybmVscy4gU28gaWYgd2UgY2FuIGdldCB0aGlzIGludG8gdjUuMCwgdGhhdCdk IGJlIGdvb2QgZW5vdWdoIGZvcgo+IG1lLgoKNS4wLWZpbmFsIGlzIHRvbyBsYXRlLCBidXQgNS4w LnkgaXMgZG9hYmxlLgoKTWF0aGlhcywgd2FudCBtZSB0byB0YWtlIHRoaXMgZGlyZWN0bHk/Cgp0 aGFua3MsCgpncmVnIGstaAo=