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Tue, 1 Oct 2019 23:47:53 +0000 (GMT) Received: from b01ledav001.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E684D28058; Tue, 1 Oct 2019 23:47:52 +0000 (GMT) Received: from localhost (unknown [9.53.179.213]) by b01ledav001.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 1 Oct 2019 23:47:52 +0000 (GMT) From: Michael Roth To: qemu-devel@nongnu.org Subject: [PATCH 75/97] pr-manager: Fix invalid g_free() crash bug Date: Tue, 1 Oct 2019 18:45:54 -0500 Message-Id: <20191001234616.7825-76-mdroth@linux.vnet.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191001234616.7825-1-mdroth@linux.vnet.ibm.com> References: <20191001234616.7825-1-mdroth@linux.vnet.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-10-01_10:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=3 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910010203 X-MIME-Autoconverted: from 8bit to quoted-printable by mx0b-001b2d01.pphosted.com id x91NmLsK132821 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , qemu-stable@nongnu.org, Markus Armbruster Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" From: Markus Armbruster pr_manager_worker() passes its @opaque argument to g_free(). Wrong; it points to pr_manager_worker()'s automatic @data. Broken when commit 2f3a7ab39be converted @data from heap- to stack-allocated. Fix by deleting the g_free(). Fixes: 2f3a7ab39bec4ba8022dc4d42ea641165b004e3e Cc: qemu-stable@nongnu.org Signed-off-by: Markus Armbruster Reviewed-by: Philippe Mathieu-Daudé Acked-by: Paolo Bonzini Signed-off-by: Kevin Wolf (cherry picked from commit 6b9d62c2a9e83bbad73fb61406f0ff69b46ff6f3) Signed-off-by: Michael Roth --- scsi/pr-manager.c | 1 - 1 file changed, 1 deletion(-) diff --git a/scsi/pr-manager.c b/scsi/pr-manager.c index d9f4e8c3ad..227bdfaad2 100644 --- a/scsi/pr-manager.c +++ b/scsi/pr-manager.c @@ -38,7 +38,6 @@ static int pr_manager_worker(void *opaque) int fd = data->fd; int r; - g_free(data); trace_pr_manager_run(fd, hdr->cmdp[0], hdr->cmdp[1]); /* The reference was taken in pr_manager_execute. */