From nobody Sun May 19 10:38:44 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1673370479; cv=none; d=zohomail.com; s=zohoarc; b=Q3F3bdKnd7qN2gu/8O4sdmnwBq24BNd00rlnGHSQWacroBA3PiJ03DqyVIxhmqd8qEKRGo2dqDpAUi6ePQSSV2YPrzuWZIDEWJGMuZVxhbYaTC/QGFrZuRt4CpxTb/jvzTbGhZ8jPF3LRfTykb4eYRPsK3FlKO+BXvIM0UrP+xc= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1673370479; h=Content-Type:Content-Transfer-Encoding:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=AGtYZHa2EQuYr4CRaasP2f35tfcqxIqTJA5CDW3A6PI=; b=DKGwe9xz3XwER7i830EBL+5Wyyv6NKeGjVQPANQXopGroXVOvBp4K/PV/l0R5KVT1YGO9y+7etIwdNZEs83Bj0CvLP/JIyqzzfi6ibyc74oMRLRexgmrQDa8xWI43K2mNR7Ch2g+iT/THY8AL4pfxSrh6OBI4rMOUewAK/c0+Wc= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTP id 1673370479532309.47104071463923; Tue, 10 Jan 2023 09:07:59 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pFHcP-0000im-BW; Tue, 10 Jan 2023 11:36:57 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pFHcM-0000hj-DZ for qemu-devel@nongnu.org; Tue, 10 Jan 2023 11:36:55 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pFHcJ-0004sQ-MZ for qemu-devel@nongnu.org; Tue, 10 Jan 2023 11:36:53 -0500 Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-7-oDn__C9kNN-tjnvdAHN35w-1; Tue, 10 Jan 2023 11:36:47 -0500 Received: by mail-wr1-f71.google.com with SMTP id b6-20020adfc746000000b002bae2b30112so2151125wrh.13 for ; Tue, 10 Jan 2023 08:36:47 -0800 (PST) Received: from avogadro.local ([2001:b07:6468:f312:1c09:f536:3de6:228c]) by smtp.gmail.com with ESMTPSA id b1-20020adf9b01000000b0028e55b44a99sm11440416wrc.17.2023.01.10.08.36.44 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Jan 2023 08:36:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1673368610; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=AGtYZHa2EQuYr4CRaasP2f35tfcqxIqTJA5CDW3A6PI=; b=KHyxmNWnJ8frWdeSuo8I28tsm6e2Kh1ieRXbZlF5fTQKlfsZXtjLs+J5wUWbCOU3xfBU1O ke41yZNQy4lUn9OfIxF16pDnRiZi1cJa+iKpV/hhFJcqf3Zz+QutuSZBBV13oCiLR8Spun kU3xcUUMWb6Y/2n5Sm9HnJHBPwacfng= X-MC-Unique: oDn__C9kNN-tjnvdAHN35w-1 X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=AGtYZHa2EQuYr4CRaasP2f35tfcqxIqTJA5CDW3A6PI=; b=U9ob/e6nexFvhPUCpzEsflNDeZwps7Pm1bf1YsrAAomp1UDL/hMzZ9r94G+w+nbJuL 6T97YPWdXRWbu9brenj3G3l85fHevC8B+JAK82lKq/MJUl5t97Og71UCwK2fK7dkb8Jo n0wX3tAsFufP4zH2nU7T02Mt5osaGpog80U9zdAtlL8I4r1GmPav2NCmBaM4rFm5d9gl OxByzOMKXh6+VQzeqeyIyQy8DFbtCYPPhs8dtbR9Ob1jQSoX2W1x3BEBqLqHjUK0NBbt hygBZQ3wclAOa6FNg/H/s7uFI0ChT6lnaxsq+NTAqlXpjo5OBVR6HYDwtIgw8EEhwYVo XgXQ== X-Gm-Message-State: AFqh2kqqr4xYY+9N0Kc+T68BbfL5TvzU0hh+D/rG16wyKOy7BsXv9EtB 2qzZZog4d02Ic7r/x2zC3lNZeGgAPyu2EnEWvaOCsHhjkGasYmXidQy8dCXemgAK46fLDhHOh0h xwP+jwWLA543YuZDtpTtNfaMukV7wEpsradi7a6O5oFWBaQPSSq3MiNr7CdEQDNoO2Xo= X-Received: by 2002:adf:f482:0:b0:2bb:f4bf:e758 with SMTP id l2-20020adff482000000b002bbf4bfe758mr5066279wro.48.1673368605984; Tue, 10 Jan 2023 08:36:45 -0800 (PST) X-Google-Smtp-Source: AMrXdXvaRnLW1FLTHdl2Upf3trNzZoJWPIzapaZCplaBzD3S0u+aPeiOqCSyn7tNyi0hKVBbJsDtHw== X-Received: by 2002:adf:f482:0:b0:2bb:f4bf:e758 with SMTP id l2-20020adff482000000b002bbf4bfe758mr5066267wro.48.1673368605556; Tue, 10 Jan 2023 08:36:45 -0800 (PST) From: Paolo Bonzini To: qemu-devel@nongnu.org Subject: [PATCH] block/iscsi: fix double-free on BUSY or similar statuses Date: Tue, 10 Jan 2023 17:36:41 +0100 Message-Id: <20230110163642.344592-1-pbonzini@redhat.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1673370480264100001 Content-Type: text/plain; charset="utf-8" Commit 8c460269aa77 ("iscsi: base all handling of check condition on scsi_sense_to_errno", 2019-07-15) removed a "goto out" so that the same coroutine is re-entered twice; once from iscsi_co_generic_cb, once from the timer callback iscsi_retry_timer_expired. This can cause a crash. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1378 Reported-by: Grzegorz Zdanowski Signed-off-by: Paolo Bonzini --- block/iscsi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/iscsi.c b/block/iscsi.c index a316d46d9625..1bba42a71b77 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -268,6 +268,7 @@ iscsi_co_generic_cb(struct iscsi_context *iscsi, int st= atus, timer_mod(&iTask->retry_timer, qemu_clock_get_ms(QEMU_CLOCK_REALTIME) + retry_t= ime); iTask->do_retry =3D 1; + return; } else if (status =3D=3D SCSI_STATUS_CHECK_CONDITION) { int error =3D iscsi_translate_sense(&task->sense); if (error =3D=3D EAGAIN) { --=20 2.38.1