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Patch "media: dvb-usb-v2: lmedm04: move ts2020 attach to dm04_lme2510_tuner" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled media: dvb-usb-v2: lmedm04: move ts2020 attach to dm04_lme2510_tuner to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: media-dvb-usb-v2-lmedm04-move-ts2020-attach-to-dm04_lme2510_tuner.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 7bf7a7116ed313c601307f7e585419369926ab05 Mon Sep 17 00:00:00 2001 From: Malcolm Priestley <tvboxspy(a)gmail.com> Date: Tue, 26 Sep 2017 17:10:21 -0400 Subject: media: dvb-usb-v2: lmedm04: move ts2020 attach to dm04_lme2510_tuner From: Malcolm Priestley <tvboxspy(a)gmail.com> commit 7bf7a7116ed313c601307f7e585419369926ab05 upstream. When the tuner was split from m88rs2000 the attach function is in wrong place. Move to dm04_lme2510_tuner to trap errors on failure and removing a call to lme_coldreset. Prevents driver starting up without any tuner connected. Fixes to trap for ts2020 fail. LME2510(C): FE Found M88RS2000 ts2020: probe of 0-0060 failed with error -11 ... LME2510(C): TUN Found RS2000 tuner kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Reported-by: Andrey Konovalov <andreyknvl(a)google.com> Signed-off-by: Malcolm Priestley <tvboxspy(a)gmail.com> Tested-by: Andrey Konovalov <andreyknvl(a)google.com> Signed-off-by: Mauro Carvalho Chehab <mchehab(a)s-opensource.com> Cc: Ben Hutchings <ben.hutchings(a)codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/media/usb/dvb-usb-v2/lmedm04.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) --- a/drivers/media/usb/dvb-usb-v2/lmedm04.c +++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c @@ -1076,8 +1076,6 @@ static int dm04_lme2510_frontend_attach( if (adap->fe[0]) { info("FE Found M88RS2000"); - dvb_attach(ts2020_attach, adap->fe[0], &ts2020_config, - &d->i2c_adap); st->i2c_tuner_gate_w = 5; st->i2c_tuner_gate_r = 5; st->i2c_tuner_addr = 0x60; @@ -1143,17 +1141,18 @@ static int dm04_lme2510_tuner(struct dvb ret = st->tuner_config; break; case TUNER_RS2000: - ret = st->tuner_config; + if (dvb_attach(ts2020_attach, adap->fe[0], + &ts2020_config, &d->i2c_adap)) + ret = st->tuner_config; break; default: break; } - if (ret) + if (ret) { info("TUN Found %s tuner", tun_msg[ret]); - else { - info("TUN No tuner found --- resetting device"); - lme_coldreset(d); + } else { + info("TUN No tuner found"); return -ENODEV; } Patches currently in stable-queue which might be from tvboxspy(a)gmail.com are queue-4.14/media-dvb-usb-v2-lmedm04-move-ts2020-attach-to-dm04_lme2510_tuner.patch queue-4.14/media-dvb-usb-v2-lmedm04-improve-logic-checking-of-warm-start.patch

7 years, 4 months

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Patch "media: dvb-usb-v2: lmedm04: Improve logic checking of warm start" has been added to the 4.14-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled media: dvb-usb-v2: lmedm04: Improve logic checking of warm start to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: media-dvb-usb-v2-lmedm04-improve-logic-checking-of-warm-start.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 3d932ee27e852e4904647f15b64dedca51187ad7 Mon Sep 17 00:00:00 2001 From: Malcolm Priestley <tvboxspy(a)gmail.com> Date: Tue, 26 Sep 2017 17:10:20 -0400 Subject: media: dvb-usb-v2: lmedm04: Improve logic checking of warm start From: Malcolm Priestley <tvboxspy(a)gmail.com> commit 3d932ee27e852e4904647f15b64dedca51187ad7 upstream. Warm start has no check as whether a genuine device has connected and proceeds to next execution path. Check device should read 0x47 at offset of 2 on USB descriptor read and it is the amount requested of 6 bytes. Fix for kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access as Reported-by: Andrey Konovalov <andreyknvl(a)google.com> Signed-off-by: Malcolm Priestley <tvboxspy(a)gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab(a)s-opensource.com> Cc: Ben Hutchings <ben.hutchings(a)codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/media/usb/dvb-usb-v2/lmedm04.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) --- a/drivers/media/usb/dvb-usb-v2/lmedm04.c +++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c @@ -494,18 +494,23 @@ static int lme2510_pid_filter(struct dvb static int lme2510_return_status(struct dvb_usb_device *d) { - int ret = 0; + int ret; u8 *data; - data = kzalloc(10, GFP_KERNEL); + data = kzalloc(6, GFP_KERNEL); if (!data) return -ENOMEM; - ret |= usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), - 0x06, 0x80, 0x0302, 0x00, data, 0x0006, 200); - info("Firmware Status: %x (%x)", ret , data[2]); + ret = usb_control_msg(d->udev, usb_rcvctrlpipe(d->udev, 0), + 0x06, 0x80, 0x0302, 0x00, + data, 0x6, 200); + if (ret != 6) + ret = -EINVAL; + else + ret = data[2]; + + info("Firmware Status: %6ph", data); - ret = (ret < 0) ? -ENODEV : data[2]; kfree(data); return ret; } @@ -1189,6 +1194,7 @@ static int lme2510_get_adapter_count(str static int lme2510_identify_state(struct dvb_usb_device *d, const char **name) { struct lme2510_state *st = d->priv; + int status; usb_reset_configuration(d->udev); @@ -1197,12 +1203,16 @@ static int lme2510_identify_state(struct st->dvb_usb_lme2510_firmware = dvb_usb_lme2510_firmware; - if (lme2510_return_status(d) == 0x44) { + status = lme2510_return_status(d); + if (status == 0x44) { *name = lme_firmware_switch(d, 0); return COLD; } - return 0; + if (status != 0x47) + return -EINVAL; + + return WARM; } static int lme2510_get_stream_config(struct dvb_frontend *fe, u8 *ts_type, Patches currently in stable-queue which might be from tvboxspy(a)gmail.com are queue-4.14/media-dvb-usb-v2-lmedm04-move-ts2020-attach-to-dm04_lme2510_tuner.patch queue-4.14/media-dvb-usb-v2-lmedm04-improve-logic-checking-of-warm-start.patch

7 years, 4 months

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Patch "usbip: vhci-hcd: Add USB3 SuperSpeed support" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usbip: vhci-hcd: Add USB3 SuperSpeed support to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usbip-vhci-hcd-add-usb3-superspeed-support.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 1c9de5bf428612458427943b724bea51abde520a Mon Sep 17 00:00:00 2001 From: Yuyang Du <yuyang.du(a)intel.com> Date: Thu, 8 Jun 2017 13:04:10 +0800 Subject: usbip: vhci-hcd: Add USB3 SuperSpeed support From: Yuyang Du <yuyang.du(a)intel.com> commit 1c9de5bf428612458427943b724bea51abde520a upstream. This patch adds a USB3 HCD to an existing USB2 HCD and provides the support of SuperSpeed, in case the device can only be enumerated with SuperSpeed. The bulk of the added code in usb3_bos_desc and hub_control to support SuperSpeed is borrowed from the commit 1cd8fd2887e162ad ("usb: gadget: dummy_hcd: add SuperSpeed support"). With this patch, each vhci will have VHCI_HC_PORTS HighSpeed ports and VHCI_HC_PORTS SuperSpeed ports. Suggested-by: Krzysztof Opasiak <k.opasiak(a)samsung.com> Signed-off-by: Yuyang Du <yuyang.du(a)intel.com> Acked-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/usbip/vhci_hcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/usbip/vhci_hcd.c +++ b/drivers/usb/usbip/vhci_hcd.c @@ -279,7 +279,7 @@ static int vhci_hub_control(struct usb_h case USB_PORT_FEAT_POWER: usbip_dbg_vhci_rh( " ClearPortFeature: USB_PORT_FEAT_POWER\n"); - dum->port_status[rhport] = 0; + dum->port_status[rhport] &= ~USB_PORT_STAT_POWER; dum->resuming = 0; break; case USB_PORT_FEAT_C_RESET: Patches currently in stable-queue which might be from yuyang.du(a)intel.com are queue-3.18/usbip-vhci-hcd-add-usb3-superspeed-support.patch

7 years, 4 months

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Patch "usbip: vhci: stop printing kernel pointer addresses in messages" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usbip: vhci: stop printing kernel pointer addresses in messages to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usbip-vhci-stop-printing-kernel-pointer-addresses-in-messages.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 8272d099d05f7ab2776cf56a2ab9f9443be18907 Mon Sep 17 00:00:00 2001 From: Shuah Khan <shuahkh(a)osg.samsung.com> Date: Mon, 18 Dec 2017 17:24:22 -0700 Subject: usbip: vhci: stop printing kernel pointer addresses in messages From: Shuah Khan <shuahkh(a)osg.samsung.com> commit 8272d099d05f7ab2776cf56a2ab9f9443be18907 upstream. Remove and/or change debug, info. and error messages to not print kernel pointer addresses. Signed-off-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/usbip/vhci_hcd.c | 10 ---------- drivers/usb/usbip/vhci_rx.c | 23 +++++++++++------------ drivers/usb/usbip/vhci_tx.c | 3 ++- 3 files changed, 13 insertions(+), 23 deletions(-) --- a/drivers/usb/usbip/vhci_hcd.c +++ b/drivers/usb/usbip/vhci_hcd.c @@ -469,9 +469,6 @@ static int vhci_urb_enqueue(struct usb_h struct vhci_device *vdev; unsigned long flags; - usbip_dbg_vhci_hc("enter, usb_hcd %p urb %p mem_flags %d\n", - hcd, urb, mem_flags); - /* patch to usb_sg_init() is in 2.5.60 */ BUG_ON(!urb->transfer_buffer && urb->transfer_buffer_length); @@ -630,8 +627,6 @@ static int vhci_urb_dequeue(struct usb_h struct vhci_device *vdev; unsigned long flags; - pr_info("dequeue a urb %p\n", urb); - spin_lock_irqsave(&the_controller->lock, flags); priv = urb->hcpriv; @@ -659,7 +654,6 @@ static int vhci_urb_dequeue(struct usb_h /* tcp connection is closed */ spin_lock(&vdev->priv_lock); - pr_info("device %p seems to be disconnected\n", vdev); list_del(&priv->list); kfree(priv); urb->hcpriv = NULL; @@ -671,8 +665,6 @@ static int vhci_urb_dequeue(struct usb_h * vhci_rx will receive RET_UNLINK and give back the URB. * Otherwise, we give back it here. */ - pr_info("gives back urb %p\n", urb); - usb_hcd_unlink_urb_from_ep(hcd, urb); spin_unlock_irqrestore(&the_controller->lock, flags); @@ -701,8 +693,6 @@ static int vhci_urb_dequeue(struct usb_h unlink->unlink_seqnum = priv->seqnum; - pr_info("device %p seems to be still connected\n", vdev); - /* send cmd_unlink and try to cancel the pending URB in the * peer */ list_add_tail(&unlink->list, &vdev->unlink_tx); --- a/drivers/usb/usbip/vhci_rx.c +++ b/drivers/usb/usbip/vhci_rx.c @@ -37,24 +37,23 @@ struct urb *pickup_urb_and_free_priv(str urb = priv->urb; status = urb->status; - usbip_dbg_vhci_rx("find urb %p vurb %p seqnum %u\n", - urb, priv, seqnum); + usbip_dbg_vhci_rx("find urb seqnum %u\n", seqnum); switch (status) { case -ENOENT: /* fall through */ case -ECONNRESET: - dev_info(&urb->dev->dev, - "urb %p was unlinked %ssynchronuously.\n", urb, - status == -ENOENT ? "" : "a"); + dev_dbg(&urb->dev->dev, + "urb seq# %u was unlinked %ssynchronuously\n", + seqnum, status == -ENOENT ? "" : "a"); break; case -EINPROGRESS: /* no info output */ break; default: - dev_info(&urb->dev->dev, - "urb %p may be in a error, status %d\n", urb, - status); + dev_dbg(&urb->dev->dev, + "urb seq# %u may be in a error, status %d\n", + seqnum, status); } list_del(&priv->list); @@ -79,8 +78,8 @@ static void vhci_recv_ret_submit(struct spin_unlock_irqrestore(&vdev->priv_lock, flags); if (!urb) { - pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum); - pr_info("max seqnum %d\n", + pr_err("cannot find a urb of seqnum %u max seqnum %d\n", + pdu->base.seqnum, atomic_read(&the_controller->seqnum)); usbip_event_add(ud, VDEV_EVENT_ERROR_TCP); return; @@ -103,7 +102,7 @@ static void vhci_recv_ret_submit(struct if (usbip_dbg_flag_vhci_rx) usbip_dump_urb(urb); - usbip_dbg_vhci_rx("now giveback urb %p\n", urb); + usbip_dbg_vhci_rx("now giveback urb %u\n", pdu->base.seqnum); spin_lock_irqsave(&the_controller->lock, flags); usb_hcd_unlink_urb_from_ep(vhci_to_hcd(the_controller), urb); @@ -168,7 +167,7 @@ static void vhci_recv_ret_unlink(struct pr_info("the urb (seqnum %d) was already given back\n", pdu->base.seqnum); } else { - usbip_dbg_vhci_rx("now giveback urb %p\n", urb); + usbip_dbg_vhci_rx("now giveback urb %d\n", pdu->base.seqnum); /* If unlink is successful, status is -ECONNRESET */ urb->status = pdu->u.ret_unlink.status; --- a/drivers/usb/usbip/vhci_tx.c +++ b/drivers/usb/usbip/vhci_tx.c @@ -83,7 +83,8 @@ static int vhci_send_cmd_submit(struct v memset(&msg, 0, sizeof(msg)); memset(&iov, 0, sizeof(iov)); - usbip_dbg_vhci_tx("setup txdata urb %p\n", urb); + usbip_dbg_vhci_tx("setup txdata urb seqnum %lu\n", + priv->seqnum); /* 1. setup usbip_header */ setup_cmd_submit_pdu(&pdu_header, urb); Patches currently in stable-queue which might be from shuahkh(a)osg.samsung.com are queue-3.18/usbip-fix-stub_rx-harden-cmd_submit-path-to-handle-malicious-input.patch queue-3.18/usbip-vhci-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-fix-potential-format-overflow-in-userspace-tools.patch queue-3.18/usbip-vhci-hcd-add-usb3-superspeed-support.patch queue-3.18/usbip-prevent-leaking-socket-pointer-address-in-messages.patch queue-3.18/usbip-fix-stub_rx-get_pipe-to-validate-endpoint-number.patch queue-3.18/usbip-stub-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-prevent-vhci_hcd-driver-from-leaking-a-socket-pointer-address.patch queue-3.18/usb-usbip-fix-possible-deadlocks-reported-by-lockdep.patch

7 years, 4 months

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Patch "usbip: stub: stop printing kernel pointer addresses in messages" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usbip: stub: stop printing kernel pointer addresses in messages to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usbip-stub-stop-printing-kernel-pointer-addresses-in-messages.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 248a22044366f588d46754c54dfe29ffe4f8b4df Mon Sep 17 00:00:00 2001 From: Shuah Khan <shuahkh(a)osg.samsung.com> Date: Mon, 18 Dec 2017 17:23:37 -0700 Subject: usbip: stub: stop printing kernel pointer addresses in messages From: Shuah Khan <shuahkh(a)osg.samsung.com> commit 248a22044366f588d46754c54dfe29ffe4f8b4df upstream. Remove and/or change debug, info. and error messages to not print kernel pointer addresses. Signed-off-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/usbip/stub_main.c | 5 +++-- drivers/usb/usbip/stub_rx.c | 7 ++----- drivers/usb/usbip/stub_tx.c | 4 ++-- 3 files changed, 7 insertions(+), 9 deletions(-) --- a/drivers/usb/usbip/stub_main.c +++ b/drivers/usb/usbip/stub_main.c @@ -252,11 +252,12 @@ void stub_device_cleanup_urbs(struct stu struct stub_priv *priv; struct urb *urb; - dev_dbg(&sdev->udev->dev, "free sdev %p\n", sdev); + dev_dbg(&sdev->udev->dev, "Stub device cleaning up urbs\n"); while ((priv = stub_priv_pop(sdev))) { urb = priv->urb; - dev_dbg(&sdev->udev->dev, "free urb %p\n", urb); + dev_dbg(&sdev->udev->dev, "free urb seqnum %lu\n", + priv->seqnum); usb_kill_urb(urb); kmem_cache_free(stub_priv_cache, priv); --- a/drivers/usb/usbip/stub_rx.c +++ b/drivers/usb/usbip/stub_rx.c @@ -230,9 +230,6 @@ static int stub_recv_cmd_unlink(struct s if (priv->seqnum != pdu->u.cmd_unlink.seqnum) continue; - dev_info(&priv->urb->dev->dev, "unlink urb %p\n", - priv->urb); - /* * This matched urb is not completed yet (i.e., be in * flight in usb hcd hardware/driver). Now we are @@ -271,8 +268,8 @@ static int stub_recv_cmd_unlink(struct s ret = usb_unlink_urb(priv->urb); if (ret != -EINPROGRESS) dev_err(&priv->urb->dev->dev, - "failed to unlink a urb %p, ret %d\n", - priv->urb, ret); + "failed to unlink a urb # %lu, ret %d\n", + priv->seqnum, ret); return 0; } --- a/drivers/usb/usbip/stub_tx.c +++ b/drivers/usb/usbip/stub_tx.c @@ -201,8 +201,8 @@ static int stub_send_ret_submit(struct s /* 1. setup usbip_header */ setup_ret_submit_pdu(&pdu_header, urb); - usbip_dbg_stub_tx("setup txdata seqnum: %d urb: %p\n", - pdu_header.base.seqnum, urb); + usbip_dbg_stub_tx("setup txdata seqnum: %d\n", + pdu_header.base.seqnum); usbip_header_correct_endian(&pdu_header, 1); iov[iovnum].iov_base = &pdu_header; Patches currently in stable-queue which might be from shuahkh(a)osg.samsung.com are queue-3.18/usbip-fix-stub_rx-harden-cmd_submit-path-to-handle-malicious-input.patch queue-3.18/usbip-vhci-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-fix-potential-format-overflow-in-userspace-tools.patch queue-3.18/usbip-vhci-hcd-add-usb3-superspeed-support.patch queue-3.18/usbip-prevent-leaking-socket-pointer-address-in-messages.patch queue-3.18/usbip-fix-stub_rx-get_pipe-to-validate-endpoint-number.patch queue-3.18/usbip-stub-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-prevent-vhci_hcd-driver-from-leaking-a-socket-pointer-address.patch queue-3.18/usb-usbip-fix-possible-deadlocks-reported-by-lockdep.patch

7 years, 4 months

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Patch "usbip: prevent vhci_hcd driver from leaking a socket pointer address" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usbip: prevent vhci_hcd driver from leaking a socket pointer address to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usbip-prevent-vhci_hcd-driver-from-leaking-a-socket-pointer-address.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 2f2d0088eb93db5c649d2a5e34a3800a8a935fc5 Mon Sep 17 00:00:00 2001 From: Shuah Khan <shuahkh(a)osg.samsung.com> Date: Thu, 7 Dec 2017 14:16:49 -0700 Subject: usbip: prevent vhci_hcd driver from leaking a socket pointer address From: Shuah Khan <shuahkh(a)osg.samsung.com> commit 2f2d0088eb93db5c649d2a5e34a3800a8a935fc5 upstream. When a client has a USB device attached over IP, the vhci_hcd driver is locally leaking a socket pointer address via the /sys/devices/platform/vhci_hcd/status file (world-readable) and in debug output when "usbip --debug port" is run. Fix it to not leak. The socket pointer address is not used at the moment and it was made visible as a convenient way to find IP address from socket pointer address by looking up /proc/net/{tcp,tcp6}. As this opens a security hole, the fix replaces socket pointer address with sockfd. Reported-by: Secunia Research <vuln(a)secunia.com> Signed-off-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/usbip/usbip_common.h | 1 + drivers/usb/usbip/vhci_sysfs.c | 26 +++++++++++++++----------- tools/usb/usbip/libsrc/vhci_driver.c | 8 ++++---- 3 files changed, 20 insertions(+), 15 deletions(-) --- a/drivers/usb/usbip/usbip_common.h +++ b/drivers/usb/usbip/usbip_common.h @@ -261,6 +261,7 @@ struct usbip_device { /* lock for status */ spinlock_t lock; + int sockfd; struct socket *tcp_socket; struct task_struct *tcp_rx; --- a/drivers/usb/usbip/vhci_sysfs.c +++ b/drivers/usb/usbip/vhci_sysfs.c @@ -39,16 +39,20 @@ static ssize_t status_show(struct device /* * output example: - * prt sta spd dev socket local_busid - * 000 004 000 000 c5a7bb80 1-2.3 - * 001 004 000 000 d8cee980 2-3.4 + * prt sta spd dev sockfd local_busid + * 0000 004 000 00000000 000003 1-2.3 + * 0001 004 000 00000000 000004 2-3.4 * - * IP address can be retrieved from a socket pointer address by looking - * up /proc/net/{tcp,tcp6}. Also, a userland program may remember a - * port number and its peer IP address. + * Output includes socket fd instead of socket pointer address to + * avoid leaking kernel memory address in: + * /sys/devices/platform/vhci_hcd.0/status and in debug output. + * The socket pointer address is not used at the moment and it was + * made visible as a convenient way to find IP address from socket + * pointer address by looking up /proc/net/{tcp,tcp6}. As this opens + * a security hole, the change is made to use sockfd instead. */ out += sprintf(out, - "prt sta spd bus dev socket local_busid\n"); + "prt sta spd dev sockfd local_busid\n"); for (i = 0; i < VHCI_NPORTS; i++) { struct vhci_device *vdev = port_to_vdev(i); @@ -59,12 +63,11 @@ static ssize_t status_show(struct device if (vdev->ud.status == VDEV_ST_USED) { out += sprintf(out, "%03u %08x ", vdev->speed, vdev->devid); - out += sprintf(out, "%16p ", vdev->ud.tcp_socket); + out += sprintf(out, "%06u ", vdev->ud.sockfd); out += sprintf(out, "%s", dev_name(&vdev->udev->dev)); - } else { - out += sprintf(out, "000 000 000 0000000000000000 0-0"); - } + } else + out += sprintf(out, "000 00000000 000000 0-0"); out += sprintf(out, "\n"); spin_unlock(&vdev->ud.lock); @@ -223,6 +226,7 @@ static ssize_t store_attach(struct devic vdev->devid = devid; vdev->speed = speed; + vdev->ud.sockfd = sockfd; vdev->ud.tcp_socket = socket; vdev->ud.status = VDEV_ST_NOTASSIGNED; --- a/tools/usb/usbip/libsrc/vhci_driver.c +++ b/tools/usb/usbip/libsrc/vhci_driver.c @@ -55,12 +55,12 @@ static int parse_status(const char *valu while (*c != '\0') { int port, status, speed, devid; - unsigned long socket; + int sockfd; char lbusid[SYSFS_BUS_ID_SIZE]; - ret = sscanf(c, "%d %d %d %x %lx %31s\n", + ret = sscanf(c, "%d %d %d %x %u %31s\n", &port, &status, &speed, - &devid, &socket, lbusid); + &devid, &sockfd, lbusid); if (ret < 5) { dbg("sscanf failed: %d", ret); @@ -69,7 +69,7 @@ static int parse_status(const char *valu dbg("port %d status %d speed %d devid %x", port, status, speed, devid); - dbg("socket %lx lbusid %s", socket, lbusid); + dbg("sockfd %u lbusid %s", sockfd, lbusid); /* if a device is connected, look at it */ Patches currently in stable-queue which might be from shuahkh(a)osg.samsung.com are queue-3.18/usbip-fix-stub_rx-harden-cmd_submit-path-to-handle-malicious-input.patch queue-3.18/usbip-vhci-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-fix-potential-format-overflow-in-userspace-tools.patch queue-3.18/usbip-vhci-hcd-add-usb3-superspeed-support.patch queue-3.18/usbip-prevent-leaking-socket-pointer-address-in-messages.patch queue-3.18/usbip-fix-stub_rx-get_pipe-to-validate-endpoint-number.patch queue-3.18/usbip-stub-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-prevent-vhci_hcd-driver-from-leaking-a-socket-pointer-address.patch queue-3.18/usb-usbip-fix-possible-deadlocks-reported-by-lockdep.patch

7 years, 4 months

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Patch "usbip: prevent leaking socket pointer address in messages" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usbip: prevent leaking socket pointer address in messages to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usbip-prevent-leaking-socket-pointer-address-in-messages.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 90120d15f4c397272aaf41077960a157fc4212bf Mon Sep 17 00:00:00 2001 From: Shuah Khan <shuahkh(a)osg.samsung.com> Date: Fri, 15 Dec 2017 10:50:09 -0700 Subject: usbip: prevent leaking socket pointer address in messages From: Shuah Khan <shuahkh(a)osg.samsung.com> commit 90120d15f4c397272aaf41077960a157fc4212bf upstream. usbip driver is leaking socket pointer address in messages. Remove the messages that aren't useful and print sockfd in the ones that are useful for debugging. Signed-off-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/usbip/stub_dev.c | 3 +-- drivers/usb/usbip/usbip_common.c | 15 ++++----------- drivers/usb/usbip/vhci_hcd.c | 2 +- 3 files changed, 6 insertions(+), 14 deletions(-) --- a/drivers/usb/usbip/stub_dev.c +++ b/drivers/usb/usbip/stub_dev.c @@ -163,8 +163,7 @@ static void stub_shutdown_connection(str * step 1? */ if (ud->tcp_socket) { - dev_dbg(&sdev->udev->dev, "shutdown tcp_socket %p\n", - ud->tcp_socket); + dev_dbg(&sdev->udev->dev, "shutdown sockfd %d\n", ud->sockfd); kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR); } --- a/drivers/usb/usbip/usbip_common.c +++ b/drivers/usb/usbip/usbip_common.c @@ -317,18 +317,14 @@ int usbip_recv(struct socket *sock, void struct msghdr msg; struct kvec iov; int total = 0; - /* for blocks of if (usbip_dbg_flag_xmit) */ char *bp = buf; int osize = size; - usbip_dbg_xmit("enter\n"); - - if (!sock || !buf || !size) { - pr_err("invalid arg, sock %p buff %p size %d\n", sock, buf, - size); + if (!sock || !buf || !size) return -EINVAL; - } + + usbip_dbg_xmit("enter\n"); do { sock->sk->sk_allocation = GFP_NOIO; @@ -341,11 +337,8 @@ int usbip_recv(struct socket *sock, void msg.msg_flags = MSG_NOSIGNAL; result = kernel_recvmsg(sock, &msg, &iov, 1, size, MSG_WAITALL); - if (result <= 0) { - pr_debug("receive sock %p buf %p size %u ret %d total %d\n", - sock, buf, size, result, total); + if (result <= 0) goto err; - } size -= result; buf += result; --- a/drivers/usb/usbip/vhci_hcd.c +++ b/drivers/usb/usbip/vhci_hcd.c @@ -782,7 +782,7 @@ static void vhci_shutdown_connection(str /* need this? see stub_dev.c */ if (ud->tcp_socket) { - pr_debug("shutdown tcp_socket %p\n", ud->tcp_socket); + pr_debug("shutdown sockfd %d\n", ud->sockfd); kernel_sock_shutdown(ud->tcp_socket, SHUT_RDWR); } Patches currently in stable-queue which might be from shuahkh(a)osg.samsung.com are queue-3.18/usbip-fix-stub_rx-harden-cmd_submit-path-to-handle-malicious-input.patch queue-3.18/usbip-vhci-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-fix-potential-format-overflow-in-userspace-tools.patch queue-3.18/usbip-vhci-hcd-add-usb3-superspeed-support.patch queue-3.18/usbip-prevent-leaking-socket-pointer-address-in-messages.patch queue-3.18/usbip-fix-stub_rx-get_pipe-to-validate-endpoint-number.patch queue-3.18/usbip-stub-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-prevent-vhci_hcd-driver-from-leaking-a-socket-pointer-address.patch queue-3.18/usb-usbip-fix-possible-deadlocks-reported-by-lockdep.patch

7 years, 4 months

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Patch "usbip: fix stub_rx: harden CMD_SUBMIT path to handle malicious input" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usbip: fix stub_rx: harden CMD_SUBMIT path to handle malicious input to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usbip-fix-stub_rx-harden-cmd_submit-path-to-handle-malicious-input.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From c6688ef9f29762e65bce325ef4acd6c675806366 Mon Sep 17 00:00:00 2001 From: Shuah Khan <shuahkh(a)osg.samsung.com> Date: Thu, 7 Dec 2017 14:16:48 -0700 Subject: usbip: fix stub_rx: harden CMD_SUBMIT path to handle malicious input From: Shuah Khan <shuahkh(a)osg.samsung.com> commit c6688ef9f29762e65bce325ef4acd6c675806366 upstream. Harden CMD_SUBMIT path to handle malicious input that could trigger large memory allocations. Add checks to validate transfer_buffer_length and number_of_packets to protect against bad input requesting for unbounded memory allocations. Validate early in get_pipe() and return failure. Reported-by: Secunia Research <vuln(a)secunia.com> Signed-off-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/usbip/stub_rx.c | 30 +++++++++++++++++++++++++++--- 1 file changed, 27 insertions(+), 3 deletions(-) --- a/drivers/usb/usbip/stub_rx.c +++ b/drivers/usb/usbip/stub_rx.c @@ -341,11 +341,13 @@ static struct stub_priv *stub_priv_alloc return priv; } -static int get_pipe(struct stub_device *sdev, int epnum, int dir) +static int get_pipe(struct stub_device *sdev, struct usbip_header *pdu) { struct usb_device *udev = sdev->udev; struct usb_host_endpoint *ep; struct usb_endpoint_descriptor *epd = NULL; + int epnum = pdu->base.ep; + int dir = pdu->base.direction; if (epnum < 0 || epnum > 15) goto err_ret; @@ -358,6 +360,7 @@ static int get_pipe(struct stub_device * goto err_ret; epd = &ep->desc; + if (usb_endpoint_xfer_control(epd)) { if (dir == USBIP_DIR_OUT) return usb_sndctrlpipe(udev, epnum); @@ -380,6 +383,27 @@ static int get_pipe(struct stub_device * } if (usb_endpoint_xfer_isoc(epd)) { + /* validate packet size and number of packets */ + unsigned int maxp, packets, bytes; + +#define USB_EP_MAXP_MULT_SHIFT 11 +#define USB_EP_MAXP_MULT_MASK (3 << USB_EP_MAXP_MULT_SHIFT) +#define USB_EP_MAXP_MULT(m) \ + (((m) & USB_EP_MAXP_MULT_MASK) >> USB_EP_MAXP_MULT_SHIFT) + + maxp = usb_endpoint_maxp(epd); + maxp *= (USB_EP_MAXP_MULT( + __le16_to_cpu(epd->wMaxPacketSize)) + 1); + bytes = pdu->u.cmd_submit.transfer_buffer_length; + packets = DIV_ROUND_UP(bytes, maxp); + + if (pdu->u.cmd_submit.number_of_packets < 0 || + pdu->u.cmd_submit.number_of_packets > packets) { + dev_err(&sdev->udev->dev, + "CMD_SUBMIT: isoc invalid num packets %d\n", + pdu->u.cmd_submit.number_of_packets); + return -1; + } if (dir == USBIP_DIR_OUT) return usb_sndisocpipe(udev, epnum); else @@ -388,7 +412,7 @@ static int get_pipe(struct stub_device * err_ret: /* NOT REACHED */ - dev_err(&sdev->interface->dev, "get pipe, epnum %d\n", epnum); + dev_err(&sdev->udev->dev, "CMD_SUBMIT: invalid epnum %d\n", epnum); return -1; } @@ -453,7 +477,7 @@ static void stub_recv_cmd_submit(struct struct stub_priv *priv; struct usbip_device *ud = &sdev->ud; struct usb_device *udev = sdev->udev; - int pipe = get_pipe(sdev, pdu->base.ep, pdu->base.direction); + int pipe = get_pipe(sdev, pdu); if (pipe == -1) return; Patches currently in stable-queue which might be from shuahkh(a)osg.samsung.com are queue-3.18/usbip-fix-stub_rx-harden-cmd_submit-path-to-handle-malicious-input.patch queue-3.18/usbip-vhci-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-fix-potential-format-overflow-in-userspace-tools.patch queue-3.18/usbip-vhci-hcd-add-usb3-superspeed-support.patch queue-3.18/usbip-prevent-leaking-socket-pointer-address-in-messages.patch queue-3.18/usbip-fix-stub_rx-get_pipe-to-validate-endpoint-number.patch queue-3.18/usbip-stub-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-prevent-vhci_hcd-driver-from-leaking-a-socket-pointer-address.patch queue-3.18/usb-usbip-fix-possible-deadlocks-reported-by-lockdep.patch

7 years, 4 months

1
0
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Patch "usbip: Fix potential format overflow in userspace tools" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usbip: Fix potential format overflow in userspace tools to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usbip-fix-potential-format-overflow-in-userspace-tools.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From e5dfa3f902b9a642ae8c6997d57d7c41e384a90b Mon Sep 17 00:00:00 2001 From: Jonathan Dieter <jdieter(a)lesbg.com> Date: Mon, 27 Feb 2017 10:31:03 +0200 Subject: usbip: Fix potential format overflow in userspace tools From: Jonathan Dieter <jdieter(a)lesbg.com> commit e5dfa3f902b9a642ae8c6997d57d7c41e384a90b upstream. The usbip userspace tools call sprintf()/snprintf() and don't check for the return value which can lead the paths to overflow, truncating the final file in the path. More urgently, GCC 7 now warns that these aren't checked with -Wformat-overflow, and with -Werror enabled in configure.ac, that makes these tools unbuildable. This patch fixes these problems by replacing sprintf() with snprintf() in one place and adding checks for the return value of snprintf(). Reviewed-by: Peter Senna Tschudin <peter.senna(a)gmail.com> Signed-off-by: Jonathan Dieter <jdieter(a)lesbg.com> Acked-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- tools/usb/usbip/libsrc/usbip_common.c | 9 ++++++++- tools/usb/usbip/libsrc/usbip_host_driver.c | 27 ++++++++++++++++++++++----- 2 files changed, 30 insertions(+), 6 deletions(-) --- a/tools/usb/usbip/libsrc/usbip_common.c +++ b/tools/usb/usbip/libsrc/usbip_common.c @@ -215,9 +215,16 @@ int read_usb_interface(struct usbip_usb_ struct usbip_usb_interface *uinf) { char busid[SYSFS_BUS_ID_SIZE]; + int size; struct udev_device *sif; - sprintf(busid, "%s:%d.%d", udev->busid, udev->bConfigurationValue, i); + size = snprintf(busid, sizeof(busid), "%s:%d.%d", + udev->busid, udev->bConfigurationValue, i); + if (size < 0 || (unsigned int)size >= sizeof(busid)) { + err("busid length %i >= %lu or < 0", size, + (unsigned long)sizeof(busid)); + return -1; + } sif = udev_device_new_from_subsystem_sysname(udev_context, "usb", busid); if (!sif) { --- a/tools/usb/usbip/libsrc/usbip_host_driver.c +++ b/tools/usb/usbip/libsrc/usbip_host_driver.c @@ -39,13 +39,19 @@ struct udev *udev_context; static int32_t read_attr_usbip_status(struct usbip_usb_device *udev) { char status_attr_path[SYSFS_PATH_MAX]; + int size; int fd; int length; char status; int value = 0; - snprintf(status_attr_path, SYSFS_PATH_MAX, "%s/usbip_status", - udev->path); + size = snprintf(status_attr_path, SYSFS_PATH_MAX, "%s/usbip_status", + udev->path); + if (size < 0 || (unsigned int)size >= sizeof(status_attr_path)) { + err("usbip_status path length %i >= %lu or < 0", size, + (unsigned long)sizeof(status_attr_path)); + return -1; + } fd = open(status_attr_path, O_RDONLY); if (fd < 0) { @@ -225,6 +231,7 @@ int usbip_host_export_device(struct usbi { char attr_name[] = "usbip_sockfd"; char sockfd_attr_path[SYSFS_PATH_MAX]; + int size; char sockfd_buff[30]; int ret; @@ -244,10 +251,20 @@ int usbip_host_export_device(struct usbi } /* only the first interface is true */ - snprintf(sockfd_attr_path, sizeof(sockfd_attr_path), "%s/%s", - edev->udev.path, attr_name); + size = snprintf(sockfd_attr_path, sizeof(sockfd_attr_path), "%s/%s", + edev->udev.path, attr_name); + if (size < 0 || (unsigned int)size >= sizeof(sockfd_attr_path)) { + err("exported device path length %i >= %lu or < 0", size, + (unsigned long)sizeof(sockfd_attr_path)); + return -1; + } - snprintf(sockfd_buff, sizeof(sockfd_buff), "%d\n", sockfd); + size = snprintf(sockfd_buff, sizeof(sockfd_buff), "%d\n", sockfd); + if (size < 0 || (unsigned int)size >= sizeof(sockfd_buff)) { + err("socket length %i >= %lu or < 0", size, + (unsigned long)sizeof(sockfd_buff)); + return -1; + } ret = write_sysfs_attribute(sockfd_attr_path, sockfd_buff, strlen(sockfd_buff)); Patches currently in stable-queue which might be from jdieter(a)lesbg.com are queue-3.18/usbip-fix-potential-format-overflow-in-userspace-tools.patch

7 years, 4 months

1
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Patch "usbip: fix stub_rx: get_pipe() to validate endpoint number" has been added to the 3.18-stable tree

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled usbip: fix stub_rx: get_pipe() to validate endpoint number to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: usbip-fix-stub_rx-get_pipe-to-validate-endpoint-number.patch and it can be found in the queue-3.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable(a)vger.kernel.org> know about it. >From 635f545a7e8be7596b9b2b6a43cab6bbd5a88e43 Mon Sep 17 00:00:00 2001 From: Shuah Khan <shuahkh(a)osg.samsung.com> Date: Thu, 7 Dec 2017 14:16:47 -0700 Subject: usbip: fix stub_rx: get_pipe() to validate endpoint number From: Shuah Khan <shuahkh(a)osg.samsung.com> commit 635f545a7e8be7596b9b2b6a43cab6bbd5a88e43 upstream. get_pipe() routine doesn't validate the input endpoint number and uses to reference ep_in and ep_out arrays. Invalid endpoint number can trigger BUG(). Range check the epnum and returning error instead of calling BUG(). Change caller stub_recv_cmd_submit() to handle the get_pipe() error return. Reported-by: Secunia Research <vuln(a)secunia.com> Signed-off-by: Shuah Khan <shuahkh(a)osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/usb/usbip/stub_rx.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) --- a/drivers/usb/usbip/stub_rx.c +++ b/drivers/usb/usbip/stub_rx.c @@ -347,15 +347,15 @@ static int get_pipe(struct stub_device * struct usb_host_endpoint *ep; struct usb_endpoint_descriptor *epd = NULL; + if (epnum < 0 || epnum > 15) + goto err_ret; + if (dir == USBIP_DIR_IN) ep = udev->ep_in[epnum & 0x7f]; else ep = udev->ep_out[epnum & 0x7f]; - if (!ep) { - dev_err(&sdev->interface->dev, "no such endpoint?, %d\n", - epnum); - BUG(); - } + if (!ep) + goto err_ret; epd = &ep->desc; if (usb_endpoint_xfer_control(epd)) { @@ -386,9 +386,10 @@ static int get_pipe(struct stub_device * return usb_rcvisocpipe(udev, epnum); } +err_ret: /* NOT REACHED */ dev_err(&sdev->interface->dev, "get pipe, epnum %d\n", epnum); - return 0; + return -1; } static void masking_bogus_flags(struct urb *urb) @@ -454,6 +455,9 @@ static void stub_recv_cmd_submit(struct struct usb_device *udev = sdev->udev; int pipe = get_pipe(sdev, pdu->base.ep, pdu->base.direction); + if (pipe == -1) + return; + priv = stub_priv_alloc(sdev, pdu); if (!priv) return; Patches currently in stable-queue which might be from shuahkh(a)osg.samsung.com are queue-3.18/usbip-fix-stub_rx-harden-cmd_submit-path-to-handle-malicious-input.patch queue-3.18/usbip-vhci-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-fix-potential-format-overflow-in-userspace-tools.patch queue-3.18/usbip-vhci-hcd-add-usb3-superspeed-support.patch queue-3.18/usbip-prevent-leaking-socket-pointer-address-in-messages.patch queue-3.18/usbip-fix-stub_rx-get_pipe-to-validate-endpoint-number.patch queue-3.18/usbip-stub-stop-printing-kernel-pointer-addresses-in-messages.patch queue-3.18/usbip-prevent-vhci_hcd-driver-from-leaking-a-socket-pointer-address.patch queue-3.18/usb-usbip-fix-possible-deadlocks-reported-by-lockdep.patch

7 years, 4 months

1
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