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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1752597440; 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=Xt2S0+xHW7NhGnqmYKqDMv8+0n5cOBqFu33T0qJRTZs=; b=Hs4Wn3/IA27YHeTg8yB2Ic0O1bWBbjN5ZUYM9ph2UeNa9+6QdlUuHsk9bge+8ijPi6WCm6 +iZetG0jw/1UTtlQCxmxI5VTNUOLBfC0VY2UuNkFNURCABGDGvVTkCTdTDmzFbs7ikYCBR q8itxaXrM9bYxH99X8/Xcej3wTwxKTg= X-MC-Unique: qsbTqvtUMomEXF_7ZmzbSw-1 X-Mimecast-MFC-AGG-ID: qsbTqvtUMomEXF_7ZmzbSw_1752597438 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: qemu-devel@nongnu.org Cc: Alex Williamson , John Levon , Mark Cave-Ayland , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 2/7] hw/vfio: fix region fd initialization Date: Tue, 15 Jul 2025 18:36:58 +0200 Message-ID: <20250715163703.243975-3-clg@redhat.com> In-Reply-To: <20250715163703.243975-1-clg@redhat.com> References: <20250715163703.243975-1-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=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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: 1752598647746116600 From: John Levon We were not initializing the region fd array to -1, so we would accidentally try to close(0) on cleanup for any region that is not referenced. Fixes: 95cdb024 ("vfio: add region info cache") Signed-off-by: John Levon Reviewed-by: Mark Cave-Ayland Reviewed-by: C=C3=A9dric Le Goater Link: https://lore.kernel.org/qemu-devel/20250715115954.515819-3-john.levon= @nutanix.com Signed-off-by: C=C3=A9dric Le Goater --- hw/vfio/device.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/vfio/device.c b/hw/vfio/device.c index 96cf21462cb10f9ebaf1bda54fed13a95b79f223..52a1996dc4e122499a978cc8a5c= e7e01620a9639 100644 --- a/hw/vfio/device.c +++ b/hw/vfio/device.c @@ -463,6 +463,8 @@ void vfio_device_detach(VFIODevice *vbasedev) void vfio_device_prepare(VFIODevice *vbasedev, VFIOContainerBase *bcontain= er, struct vfio_device_info *info) { + int i; + vbasedev->num_irqs =3D info->num_irqs; vbasedev->num_regions =3D info->num_regions; vbasedev->flags =3D info->flags; @@ -477,6 +479,9 @@ void vfio_device_prepare(VFIODevice *vbasedev, VFIOCont= ainerBase *bcontainer, vbasedev->num_regions); if (vbasedev->use_region_fds) { vbasedev->region_fds =3D g_new0(int, vbasedev->num_regions); + for (i =3D 0; i < vbasedev->num_regions; i++) { + vbasedev->region_fds[i] =3D -1; + } } } =20 @@ -489,7 +494,6 @@ void vfio_device_unprepare(VFIODevice *vbasedev) if (vbasedev->region_fds !=3D NULL && vbasedev->region_fds[i] !=3D= -1) { close(vbasedev->region_fds[i]); } - } =20 g_clear_pointer(&vbasedev->reginfo, g_free); --=20 2.50.1