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: dwc3: of-simple: fix use-after-free on remove From: Tony Lindgren Message-Id: <20180620091659.GJ26255@atomide.com> Date: Wed, 20 Jun 2018 02:16:59 -0700 To: Felipe Balbi Cc: Roger Quadros , Johan Hovold , Tero Kristo , Greg Kroah-Hartman , Alan Stern , linux-usb@vger.kernel.org, "Nori, Sekhar" , Grygorii Strashko , Nishanth Menon , "Rafael J. Wysocki" , linux-pm@vger.kernel.org List-ID: SGksCgpBZGRpbmcgUmFmYWVsIGFuZCBsaW51eC1wbSB0byBDYyBhcyB3ZWxsLgoKKiBGZWxpcGUg QmFsYmkgPGJhbGJpQGtlcm5lbC5vcmc+IFsxODA2MTkgMDE6MjNdOgo+IFRoaXMgaXMgYSBkaXJl Y3QgY29uc2VxdWVuY2Ugb2Ygbm90IHBheWluZyBhdHRlbnRpb24gdG8gdGhlIG9yZGVyIG9mCj4g dGhpbmdzLiBJZiBkcml2ZXIgd2VyZSB0byBhc3N1bWUgdGhhdCBwbV9kb21haW4tPmFjdGl2YXRl KCkgd291bGQgZG8gdGhlCj4gcmlnaHQgdGhpbmcgZm9yIHRoZSBkZXZpY2UgLS0gbWVhbmluZyB0 aGF0IHByb2JlIHdvdWxkIHJ1biB3aXRoIGFuCj4gYWN0aXZlIGRldmljZSAtLSwgdGhlbiB3ZSB3 b3VsZG4ndCBuZWVkIHRoYXQgcG1fcnVudGltZV9nZXQoKSBjYWxsIG9uCj4gcHJvYmUgYXQgYWxs LiBSYXRoZXIgd2Ugd291bGQgZm9sbG93IHRoZSBzZXF1ZW5jZToKPiAKPiAJcG1fcnVudGltZV9m b3JiaWQoKQo+IAlwbV9ydW50aW1lX3NldF9hY3RpdmUoKQo+IAlwbV9ydW50aW1lX2VuYWJsZSgp Cj4gCj4gCS8qIGRvIHlvdXIgcHJvYmUgcm91dGluZSAqLwo+IAo+IAlwbV9ydW50aW1lX3B1dF9u b2lkbGUoKQo+IAo+IFRoZW4geW91IHJlbW92ZSB5b3Ugd291bGQgbmVlZCB0byBjYWxsIHBtX3J1 bnRpbWVfZ2V0X25vcmVzdW1lKCkgdG8KPiBiYWxhbmNlIG91dCB0aGUgcG1fcnVudGltZV9wdXRf bm9pZGxlKCkgdGhlcmUuCgpIb3cgYWJvdXQgbGV0J3MgY3JlYXRlIHNvbWUgcHJldHRpZXIgaW50 ZXJmYWNlIGZvciB0aGUgYWJvdmUgcnVudGltZSBQTQp0cmlja2VyeT8KCkhvdyBhYm91dCBzb21l dGhpbmcgbGlrZSBwbV9ydW50aW1lX2luaXRfZW5hYmxlZCgpIGZvciB0aGUgYWJvdmUKc2VxdWVu Y2U/CgpJdCBtaWdodCBiZSB0aGVuIGFibGUgdG8gZG8gdGhlIHRyaWNrIGV2ZW4gaWYgYWN0aXZh dGUgaXMgbm90CmltcGxlbWVudGVkLi4KClJpZ2h0IG5vdyBpdCBoYXMgdGhlIGZlZWxpbmcgb2Yg Im9oIHdlbGwgd2UgY2FuJ3QgZ2V0IHJ1bnRpbWUgUE0gdG8Kd29yayBzbyBsZXQncyBieXBhc3Mg aXQgd2l0aCBhY3RpdmF0ZSBjYWxsIGFuZCB0aGVuIHRyaWNrIHJ1bnRpbWUgUE0KdG8gc3RhcnQg aW4gZW5hYmxlZCBtb2RlIiA6KQoKPiBBbnl3YXksIHdpdGggYW4gYXNzdW1wdGlvbiBsaWtlIHRo aXMsIGFmdGVyIGFsbCBwbGF0Zm9ybV9kZXZpY2VzIGFyZQo+IGNvbnZlcnRlZCBvdmVyLCB0aGUg YXNzdW1wdGlvbiBjYW4gYmUgbW92ZWQgaW50byB0aGUgYnVzIGNvZGUgYW5kLCBsb3cKPiBhbmQg YmVob2xkLCB0byBlbmFibGUgcnVudGltZSBwbSBmb3IgeW91ciBkcml2ZXIsIGFsbCB5b3UgaGF2 ZSB0byBpcwo+IGltcGxlbWVudCB5b3VyIGNhbGxiYWNrcyBhbmQgYWRkIHBtX3J1bnRpbWVfcHV0 X25vaWRsZSgpIHRvIHByb2JlIGFuZAo+IHBtX3J1bnRpbWVfZ2V0X25vcmVzdW1lKCkgdG8gcmVt b3ZlIChhcGFydCBmcm9tLCBvZiBjb3Vyc2UsIG1ha2luZyBzdXJlCj4gdGhlIGRldmljZSBpc24n dCBhbGxvd2VkIHRvIHJ1bnRpbWVfc3VzcGVuZCB3aGVuIGl0J3MgYWN0dWFsbHkgYnVzeSkuCj4g Cj4gRG8geW91IHNlZSB0aGUgZW5kIGdvYWw/CgpJdCBjZXJ0YWlubHkgd291bGQgYmUgbmljZSB0 byBtYWtlIHJ1bnRpbWUgUE0gZ2VuZXJpYyBmb3IgZHJpdmVycyA6KQoKPiAoSWYgeW91IG5lZWQg dG8ga25vdyB3aHkgdGhlIHBtX3J1bnRpbWVfcHV0X25vaWRsZSgpLCByZW1lbWJlciB0aGF0Cj4g cG1fcnVudGltZV9zZXRfYWN0aXZlKCkgaW5jcmVtZW50cyB0aGUgdXNhZ2UgY291bnRlciwgc28K PiBwbV9ydW50aW1lX3B1dF9ub2lkbGUgaXMgYmFzaWNhbGx5IGFsbG93aW5nIHBtX3J1bnRpbWUg dG8gaGFwcGVuIGFzIHNvb24KPiBhcyB1c2Vyc3BhY2Ugd3JpdGVzICJhdXRvIiB0byAvc3lzLy4u Li4vcG93ZXIvY29udHJvbCkKCkkgd29uZGVyIGlmIHdlIGNvdWxkIGFsc28gcmVtb3ZlIHRoZSBu ZWVkIGZvciBkcml2ZXJzIHRvIGNhbGwKcG1fcnVudGltZV9wdXRub2lkbGUoKSBhdCB0aGUgZW5k IG9mIHRoZSBwcm9iZT8gSWYgd2UgaGFkCnBtX3J1bnRpbWVfaW5pdF9lbmFibGVkKCkgaW1wbGVt ZW50ZWQuCgpSZWdhcmRzLAoKVG9ueQotLS0KVG8gdW5zdWJzY3JpYmUgZnJvbSB0aGlzIGxpc3Q6 IHNlbmQgdGhlIGxpbmUgInVuc3Vic2NyaWJlIGxpbnV4LXVzYiIgaW4KdGhlIGJvZHkgb2YgYSBt ZXNzYWdlIHRvIG1ham9yZG9tb0B2Z2VyLmtlcm5lbC5vcmcKTW9yZSBtYWpvcmRvbW8gaW5mbyBh dCAgaHR0cDovL3ZnZXIua2VybmVsLm9yZy9tYWpvcmRvbW8taW5mby5odG1sCg==