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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1720525842; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=EQpv0egXJNndOFARBXntRY0jNYVT/w4qa2wRWii6RKA=; b=JiwDy9TCc3bjyIHl3G2HpxwOdpjjYXqOWipwv9h6KB3wYnmRkcj3lNnhTpdKqRBnScstfG iAwPkG7MPHmz5Uozi8eg4JYimSo5MvkP82uZS7Y5y1tBIBg9VKPTJe1lW/WIeAH4Yg+dWq oicnpySChlAgM0caCQlSvLeRxhfBjWQ= X-MC-Unique: MmulFxDVM2WZ2ZSt8VukCw-1 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , Zhenzhong Duan , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PULL 8/9] vfio/display: Fix potential memleak of edid info Date: Tue, 9 Jul 2024 13:50:16 +0200 Message-ID: <20240709115017.798043-9-clg@redhat.com> In-Reply-To: <20240709115017.798043-1-clg@redhat.com> References: <20240709115017.798043-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 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=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.144, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=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: 1720525976987116600 From: Zhenzhong Duan 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 661e921616f4b85613d5f6053c30348a4ee6cbd2..9c57fd388886100bf9eae061def= 39688d33a8695 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 2.45.2