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 2CF39C4332F for ; Mon, 6 Nov 2023 00:46:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229999AbjKFAq6 (ORCPT ); Sun, 5 Nov 2023 19:46:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45274 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229447AbjKFAq5 (ORCPT ); Sun, 5 Nov 2023 19:46:57 -0500 Received: from mail-oi1-f200.google.com (mail-oi1-f200.google.com [209.85.167.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 073D1A2 for ; Sun, 5 Nov 2023 16:46:55 -0800 (PST) Received: by mail-oi1-f200.google.com with SMTP id 5614622812f47-3b40b5f2274so4829995b6e.1 for ; Sun, 05 Nov 2023 16:46:54 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699231614; x=1699836414; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=F4W4Upbl8FU1dF7PItwMQ7LkcwTM/nTnOvVDdq+SYns=; b=Aw2lSTYFWR0PcJL/tpjgD1jaB1d6EFo3g72blLT4kmM1O5akaIpqs7NPzEQfpF6mtz psuYinY/j394WKnuTq5dkP70/3KVMQYA0umebWzFghmeQrEN8KoBAzeyMcIrSawA6a5t HlzX6Ai4WhwgJ+lu1sf6MdxEMRSeJ3IySJDnHxCX/tRVp0MG1cAP69O4RHnesgTHWqiT ONv+qp+SOnvRDenUK84eGnK5QguzNMiUyAKD+WwhuuKc5I1MBl++0A9FDL8mKC3ifQht Opjj2fDe/EFWCInsgLxGBZNg+x+kFE7oAuypE0YEpJOY1JJgk0hqffpEHiqbm5bZbv3P VUAQ== X-Gm-Message-State: AOJu0YxW2Dy9KYh4ibjDRATgmL0kcbDlZrsXL8r/k5Faw/NRU+n6isUM zm0pUbERfZLFMgPk4DzhyI1Hm1Be9akwKnvpFFE9cpf5IWTzJVE= X-Google-Smtp-Source: AGHT+IF40xtLD7jP1hOBQAXqUjwzJFHE+kBJm4z6Liyb02umsGSY/ZhjQlSRvodxS9OMfsnrrdrTHHt6/a0SeZne91FS1vkEGDvi MIME-Version: 1.0 X-Received: by 2002:a05:6808:360a:b0:3ad:29a4:f542 with SMTP id ct10-20020a056808360a00b003ad29a4f542mr2685197oib.5.1699231614457; Sun, 05 Nov 2023 16:46:54 -0800 (PST) Date: Sun, 05 Nov 2023 16:46:54 -0800 In-Reply-To: <000000000000e7b62806096c7d67@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c55bd50609713078@google.com> Subject: Re: [syzbot] test general protection fault in ptp_ioctl From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: test general protection fault in ptp_ioctl Author: lizhi.xu@windriver.com #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 4652b8e4f3ff diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c index 282cd7d24077..27c1ef493617 100644 --- a/drivers/ptp/ptp_chardev.c +++ b/drivers/ptp/ptp_chardev.c @@ -585,7 +585,5 @@ ssize_t ptp_read(struct posix_clock_context *pccontext, uint rdflags, free_event: kfree(event); exit: - if (result < 0) - ptp_release(pccontext); return result; }