From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 53651C4332F for ; Mon, 17 Oct 2022 17:59:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230451AbiJQR75 (ORCPT ); Mon, 17 Oct 2022 13:59:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60716 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230399AbiJQR7v (ORCPT ); Mon, 17 Oct 2022 13:59:51 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C40102A95C for ; Mon, 17 Oct 2022 10:59:50 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4D352611E8 for ; Mon, 17 Oct 2022 17:59:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id B6218C433D6 for ; Mon, 17 Oct 2022 17:59:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666029588; bh=wPA+RdcP0HUl8YjHROlbbi2FIW1gxL5t1CHTvz0R1MQ=; h=From:To:Subject:Date:In-Reply-To:References:From; b=U08qsHNUBRbg2dfmoss4iTUsdsd42g/R7qQInO5zZHcaz2r+LlYYeKUfFUlHNYT3P u2Y6O+WneRqK83m8ylGHZEwfJiZrYjB4PO7nsElXdVnBhVmz3vZoMye2h76KAgepLi mumDsIH9fP1dlcfmJtlBuJVO57P07eL1RpxUjNs4ZMdOf62GWcRrhD1ENUuAbs8qZO jX9eQJMYuMKXnaI/J3R50GK0UNNDEw+4IbK3YCZIYBMhgN0U2vH/LZSrLV3Bp6kSSM hAgdUDW+HrFu9yJjXTNWWAXP1Vs3pMUkldwR8NZjK9hiu3pTIVBankbgsYFHLb6bsL t4eJ9lmjmo7xw== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 94B7AC433E4; Mon, 17 Oct 2022 17:59:48 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 216543] kernel NULL pointer dereference usb_hcd_alloc_bandwidth Date: Mon, 17 Oct 2022 17:59:48 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: nazar@mokrynskyi.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.created Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org https://bugzilla.kernel.org/show_bug.cgi?id=3D216543 --- Comment #7 from Nazar Mokrynskyi (nazar@mokrynskyi.com) --- Created attachment 303022 --> https://bugzilla.kernel.org/attachment.cgi?id=3D303022&action=3Dedit Kernel log with uvc-trace patch applied I'm on 6.0.2 and seemingly get this even more frequently with good cable an= d no extra adapters. So I patched 6.0.2 with uvc-trace above and reproduced it within a few minutes. USB seems to reset, often camera stops or freezes in the browser, but the l= ight on the camera itself remains on. Sometimes I can enable/disable/enable came= ra for it to reboot, but the last time I did that in the log I got null pointer de-reference again. Please let me know if there is any other information I can provide and what could be the root cause of this annoying behavior. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=