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a="42319509" X-IronPort-AV: E=Sophos;i="6.09,175,1716274800"; d="scan'208";a="42319509" X-CSE-ConnectionGUID: TtqF1Mw4TXa14+KwDs9ylg== X-CSE-MsgGUID: +cuiyYa9T3iihRkjHASGOA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,175,1716274800"; d="scan'208";a="45331373" From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, marcandre.lureau@redhat.com, kraxel@redhat.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v2 1/2] vfio/display: Fix potential memleak of edid info Date: Mon, 1 Jul 2024 09:48:08 +0800 Message-Id: <20240701014809.255682-2-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240701014809.255682-1-zhenzhong.duan@intel.com> References: <20240701014809.255682-1-zhenzhong.duan@intel.com> 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.198.163.7; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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_MED=-2.3, 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1719798700154100003 Content-Type: text/plain; charset="utf-8" EDID related device region info is leaked in vfio_display_edid_init() error path and VFIODisplay destroying path. Fixes: 08479114b0de ("vfio/display: add edid support.") Signed-off-by: Zhenzhong Duan Reviewed-by: C=C3=A9dric Le Goater Reviewed-by: Marc-Andr=C3=A9 Lureau --- hw/vfio/display.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/hw/vfio/display.c b/hw/vfio/display.c index 661e921616..9c57fd3888 100644 --- a/hw/vfio/display.c +++ b/hw/vfio/display.c @@ -171,7 +171,9 @@ static void vfio_display_edid_init(VFIOPCIDevice *vdev) =20 err: trace_vfio_display_edid_write_error(); + g_free(dpy->edid_info); g_free(dpy->edid_regs); + dpy->edid_info =3D NULL; dpy->edid_regs =3D NULL; return; } @@ -182,6 +184,7 @@ static void vfio_display_edid_exit(VFIODisplay *dpy) return; } =20 + g_free(dpy->edid_info); g_free(dpy->edid_regs); g_free(dpy->edid_blob); timer_free(dpy->edid_link_timer); --=20 2.34.1