--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Ori Nimron <orinimron123@gmail.com>
+Date: Fri, 20 Sep 2019 09:35:46 +0200
+Subject: appletalk: enforce CAP_NET_RAW for raw sockets
+
+From: Ori Nimron <orinimron123@gmail.com>
+
+[ Upstream commit 6cc03e8aa36c51f3b26a0d21a3c4ce2809c842ac ]
+
+When creating a raw AF_APPLETALK socket, CAP_NET_RAW needs to be checked
+first.
+
+Signed-off-by: Ori Nimron <orinimron123@gmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/appletalk/ddp.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/net/appletalk/ddp.c
++++ b/net/appletalk/ddp.c
+@@ -1029,6 +1029,11 @@ static int atalk_create(struct net *net,
+ */
+ if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
+ goto out;
++
++ rc = -EPERM;
++ if (sock->type == SOCK_RAW && !kern && !capable(CAP_NET_RAW))
++ goto out;
++
+ rc = -ENOMEM;
+ sk = sk_alloc(net, PF_APPLETALK, GFP_KERNEL, &ddp_proto, kern);
+ if (!sk)
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
+Date: Fri, 20 Sep 2019 16:08:21 +0200
+Subject: arcnet: provide a buffer big enough to actually receive packets
+
+From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
+
+[ Upstream commit 108639aac35eb57f1d0e8333f5fc8c7ff68df938 ]
+
+struct archdr is only big enough to hold the header of various types of
+arcnet packets. So to provide enough space to hold the data read from
+hardware provide a buffer large enough to hold a packet with maximal
+size.
+
+The problem was noticed by the stack protector which makes the kernel
+oops.
+
+Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
+Acked-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/arcnet/arcnet.c | 31 +++++++++++++++++--------------
+ 1 file changed, 17 insertions(+), 14 deletions(-)
+
+--- a/drivers/net/arcnet/arcnet.c
++++ b/drivers/net/arcnet/arcnet.c
+@@ -1009,31 +1009,34 @@ EXPORT_SYMBOL(arcnet_interrupt);
+ static void arcnet_rx(struct net_device *dev, int bufnum)
+ {
+ struct arcnet_local *lp = netdev_priv(dev);
+- struct archdr pkt;
++ union {
++ struct archdr pkt;
++ char buf[512];
++ } rxdata;
+ struct arc_rfc1201 *soft;
+ int length, ofs;
+
+- soft = &pkt.soft.rfc1201;
++ soft = &rxdata.pkt.soft.rfc1201;
+
+- lp->hw.copy_from_card(dev, bufnum, 0, &pkt, ARC_HDR_SIZE);
+- if (pkt.hard.offset[0]) {
+- ofs = pkt.hard.offset[0];
++ lp->hw.copy_from_card(dev, bufnum, 0, &rxdata.pkt, ARC_HDR_SIZE);
++ if (rxdata.pkt.hard.offset[0]) {
++ ofs = rxdata.pkt.hard.offset[0];
+ length = 256 - ofs;
+ } else {
+- ofs = pkt.hard.offset[1];
++ ofs = rxdata.pkt.hard.offset[1];
+ length = 512 - ofs;
+ }
+
+ /* get the full header, if possible */
+- if (sizeof(pkt.soft) <= length) {
+- lp->hw.copy_from_card(dev, bufnum, ofs, soft, sizeof(pkt.soft));
++ if (sizeof(rxdata.pkt.soft) <= length) {
++ lp->hw.copy_from_card(dev, bufnum, ofs, soft, sizeof(rxdata.pkt.soft));
+ } else {
+- memset(&pkt.soft, 0, sizeof(pkt.soft));
++ memset(&rxdata.pkt.soft, 0, sizeof(rxdata.pkt.soft));
+ lp->hw.copy_from_card(dev, bufnum, ofs, soft, length);
+ }
+
+ arc_printk(D_DURING, dev, "Buffer #%d: received packet from %02Xh to %02Xh (%d+4 bytes)\n",
+- bufnum, pkt.hard.source, pkt.hard.dest, length);
++ bufnum, rxdata.pkt.hard.source, rxdata.pkt.hard.dest, length);
+
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += length + ARC_HDR_SIZE;
+@@ -1042,13 +1045,13 @@ static void arcnet_rx(struct net_device
+ if (arc_proto_map[soft->proto]->is_ip) {
+ if (BUGLVL(D_PROTO)) {
+ struct ArcProto
+- *oldp = arc_proto_map[lp->default_proto[pkt.hard.source]],
++ *oldp = arc_proto_map[lp->default_proto[rxdata.pkt.hard.source]],
+ *newp = arc_proto_map[soft->proto];
+
+ if (oldp != newp) {
+ arc_printk(D_PROTO, dev,
+ "got protocol %02Xh; encap for host %02Xh is now '%c' (was '%c')\n",
+- soft->proto, pkt.hard.source,
++ soft->proto, rxdata.pkt.hard.source,
+ newp->suffix, oldp->suffix);
+ }
+ }
+@@ -1057,10 +1060,10 @@ static void arcnet_rx(struct net_device
+ lp->default_proto[0] = soft->proto;
+
+ /* in striking contrast, the following isn't a hack. */
+- lp->default_proto[pkt.hard.source] = soft->proto;
++ lp->default_proto[rxdata.pkt.hard.source] = soft->proto;
+ }
+ /* call the protocol-specific receiver. */
+- arc_proto_map[soft->proto]->rx(dev, bufnum, &pkt, length);
++ arc_proto_map[soft->proto]->rx(dev, bufnum, &rxdata.pkt, length);
+ }
+
+ static void null_rx(struct net_device *dev, int bufnum,
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Ori Nimron <orinimron123@gmail.com>
+Date: Fri, 20 Sep 2019 09:35:47 +0200
+Subject: ax25: enforce CAP_NET_RAW for raw sockets
+
+From: Ori Nimron <orinimron123@gmail.com>
+
+[ Upstream commit 0614e2b73768b502fc32a75349823356d98aae2c ]
+
+When creating a raw AF_AX25 socket, CAP_NET_RAW needs to be checked
+first.
+
+Signed-off-by: Ori Nimron <orinimron123@gmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/ax25/af_ax25.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/net/ax25/af_ax25.c
++++ b/net/ax25/af_ax25.c
+@@ -859,6 +859,8 @@ static int ax25_create(struct net *net,
+ break;
+
+ case SOCK_RAW:
++ if (!capable(CAP_NET_RAW))
++ return -EPERM;
+ break;
+ default:
+ return -ESOCKTNOSUPPORT;
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: "Bjørn Mork" <bjorn@mork.no>
+Date: Wed, 18 Sep 2019 14:01:46 +0200
+Subject: cdc_ncm: fix divide-by-zero caused by invalid wMaxPacketSize
+
+From: "Bjørn Mork" <bjorn@mork.no>
+
+[ Upstream commit 3fe4b3351301660653a2bc73f2226da0ebd2b95e ]
+
+Endpoints with zero wMaxPacketSize are not usable for transferring
+data. Ignore such endpoints when looking for valid in, out and
+status pipes, to make the driver more robust against invalid and
+meaningless descriptors.
+
+The wMaxPacketSize of the out pipe is used as divisor. So this change
+fixes a divide-by-zero bug.
+
+Reported-by: syzbot+ce366e2b8296e25d84f5@syzkaller.appspotmail.com
+Signed-off-by: Bjørn Mork <bjorn@mork.no>
+Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/usb/cdc_ncm.c | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/usb/cdc_ncm.c
++++ b/drivers/net/usb/cdc_ncm.c
+@@ -636,8 +636,12 @@ cdc_ncm_find_endpoints(struct usbnet *de
+ u8 ep;
+
+ for (ep = 0; ep < intf->cur_altsetting->desc.bNumEndpoints; ep++) {
+-
+ e = intf->cur_altsetting->endpoint + ep;
++
++ /* ignore endpoints which cannot transfer data */
++ if (!usb_endpoint_maxp(&e->desc))
++ continue;
++
+ switch (e->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
+ case USB_ENDPOINT_XFER_INT:
+ if (usb_endpoint_dir_in(&e->desc)) {
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Ori Nimron <orinimron123@gmail.com>
+Date: Fri, 20 Sep 2019 09:35:48 +0200
+Subject: ieee802154: enforce CAP_NET_RAW for raw sockets
+
+From: Ori Nimron <orinimron123@gmail.com>
+
+[ Upstream commit e69dbd4619e7674c1679cba49afd9dd9ac347eef ]
+
+When creating a raw AF_IEEE802154 socket, CAP_NET_RAW needs to be
+checked first.
+
+Signed-off-by: Ori Nimron <orinimron123@gmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/ieee802154/socket.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/net/ieee802154/socket.c
++++ b/net/ieee802154/socket.c
+@@ -999,6 +999,9 @@ static int ieee802154_create(struct net
+
+ switch (sock->type) {
+ case SOCK_RAW:
++ rc = -EPERM;
++ if (!capable(CAP_NET_RAW))
++ goto out;
+ proto = &ieee802154_raw_prot;
+ ops = &ieee802154_raw_ops;
+ break;
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Ori Nimron <orinimron123@gmail.com>
+Date: Fri, 20 Sep 2019 09:35:45 +0200
+Subject: mISDN: enforce CAP_NET_RAW for raw sockets
+
+From: Ori Nimron <orinimron123@gmail.com>
+
+[ Upstream commit b91ee4aa2a2199ba4d4650706c272985a5a32d80 ]
+
+When creating a raw AF_ISDN socket, CAP_NET_RAW needs to be checked
+first.
+
+Signed-off-by: Ori Nimron <orinimron123@gmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/isdn/mISDN/socket.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/isdn/mISDN/socket.c
++++ b/drivers/isdn/mISDN/socket.c
+@@ -763,6 +763,8 @@ base_sock_create(struct net *net, struct
+
+ if (sock->type != SOCK_RAW)
+ return -ESOCKTNOSUPPORT;
++ if (!capable(CAP_NET_RAW))
++ return -EPERM;
+
+ sk = sk_alloc(net, PF_ISDN, GFP_KERNEL, &mISDN_proto, kern);
+ if (!sk)
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Peter Mamonov <pmamonov@gmail.com>
+Date: Wed, 18 Sep 2019 19:27:55 +0300
+Subject: net/phy: fix DP83865 10 Mbps HDX loopback disable function
+
+From: Peter Mamonov <pmamonov@gmail.com>
+
+[ Upstream commit e47488b2df7f9cb405789c7f5d4c27909fc597ae ]
+
+According to the DP83865 datasheet "the 10 Mbps HDX loopback can be
+disabled in the expanded memory register 0x1C0.1". The driver erroneously
+used bit 0 instead of bit 1.
+
+Fixes: 4621bf129856 ("phy: Add file missed in previous commit.")
+Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
+Reviewed-by: Andrew Lunn <andrew@lunn.ch>
+Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/phy/national.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+--- a/drivers/net/phy/national.c
++++ b/drivers/net/phy/national.c
+@@ -110,14 +110,17 @@ static void ns_giga_speed_fallback(struc
+
+ static void ns_10_base_t_hdx_loopack(struct phy_device *phydev, int disable)
+ {
++ u16 lb_dis = BIT(1);
++
+ if (disable)
+- ns_exp_write(phydev, 0x1c0, ns_exp_read(phydev, 0x1c0) | 1);
++ ns_exp_write(phydev, 0x1c0,
++ ns_exp_read(phydev, 0x1c0) | lb_dis);
+ else
+ ns_exp_write(phydev, 0x1c0,
+- ns_exp_read(phydev, 0x1c0) & 0xfffe);
++ ns_exp_read(phydev, 0x1c0) & ~lb_dis);
+
+ pr_debug("10BASE-T HDX loopback %s\n",
+- (ns_exp_read(phydev, 0x1c0) & 0x0001) ? "off" : "on");
++ (ns_exp_read(phydev, 0x1c0) & lb_dis) ? "off" : "on");
+ }
+
+ static int ns_config_init(struct phy_device *phydev)
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Ori Nimron <orinimron123@gmail.com>
+Date: Fri, 20 Sep 2019 09:35:49 +0200
+Subject: nfc: enforce CAP_NET_RAW for raw sockets
+
+From: Ori Nimron <orinimron123@gmail.com>
+
+[ Upstream commit 3a359798b176183ef09efb7a3dc59abad1cc7104 ]
+
+When creating a raw AF_NFC socket, CAP_NET_RAW needs to be checked
+first.
+
+Signed-off-by: Ori Nimron <orinimron123@gmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/nfc/llcp_sock.c | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+--- a/net/nfc/llcp_sock.c
++++ b/net/nfc/llcp_sock.c
+@@ -1005,10 +1005,13 @@ static int llcp_sock_create(struct net *
+ sock->type != SOCK_RAW)
+ return -ESOCKTNOSUPPORT;
+
+- if (sock->type == SOCK_RAW)
++ if (sock->type == SOCK_RAW) {
++ if (!capable(CAP_NET_RAW))
++ return -EPERM;
+ sock->ops = &llcp_rawsock_ops;
+- else
++ } else {
+ sock->ops = &llcp_sock_ops;
++ }
+
+ sk = nfc_llcp_sock_alloc(sock, sock->type, GFP_ATOMIC, kern);
+ if (sk == NULL)
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Li RongQing <lirongqing@baidu.com>
+Date: Tue, 24 Sep 2019 19:11:52 +0800
+Subject: openvswitch: change type of UPCALL_PID attribute to NLA_UNSPEC
+
+From: Li RongQing <lirongqing@baidu.com>
+
+[ Upstream commit ea8564c865299815095bebeb4b25bef474218e4c ]
+
+userspace openvswitch patch "(dpif-linux: Implement the API
+functions to allow multiple handler threads read upcall)"
+changes its type from U32 to UNSPEC, but leave the kernel
+unchanged
+
+and after kernel 6e237d099fac "(netlink: Relax attr validation
+for fixed length types)", this bug is exposed by the below
+warning
+
+ [ 57.215841] netlink: 'ovs-vswitchd': attribute type 5 has an invalid length.
+
+Fixes: 5cd667b0a456 ("openvswitch: Allow each vport to have an array of 'port_id's")
+Signed-off-by: Li RongQing <lirongqing@baidu.com>
+Acked-by: Pravin B Shelar <pshelar@ovn.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/openvswitch/datapath.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/net/openvswitch/datapath.c
++++ b/net/openvswitch/datapath.c
+@@ -2152,7 +2152,7 @@ static const struct nla_policy vport_pol
+ [OVS_VPORT_ATTR_STATS] = { .len = sizeof(struct ovs_vport_stats) },
+ [OVS_VPORT_ATTR_PORT_NO] = { .type = NLA_U32 },
+ [OVS_VPORT_ATTR_TYPE] = { .type = NLA_U32 },
+- [OVS_VPORT_ATTR_UPCALL_PID] = { .type = NLA_U32 },
++ [OVS_VPORT_ATTR_UPCALL_PID] = { .type = NLA_UNSPEC },
+ [OVS_VPORT_ATTR_OPTIONS] = { .type = NLA_NESTED },
+ };
+
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Eric Dumazet <edumazet@google.com>
+Date: Wed, 18 Sep 2019 08:05:39 -0700
+Subject: sch_netem: fix a divide by zero in tabledist()
+
+From: Eric Dumazet <edumazet@google.com>
+
+[ Upstream commit b41d936b5ecfdb3a4abc525ce6402a6c49cffddc ]
+
+syzbot managed to crash the kernel in tabledist() loading
+an empty distribution table.
+
+ t = dist->table[rnd % dist->size];
+
+Simply return an error when such load is attempted.
+
+Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
+Signed-off-by: Eric Dumazet <edumazet@google.com>
+Reported-by: syzbot <syzkaller@googlegroups.com>
+Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ net/sched/sch_netem.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/net/sched/sch_netem.c
++++ b/net/sched/sch_netem.c
+@@ -713,7 +713,7 @@ static int get_dist_table(struct Qdisc *
+ int i;
+ size_t s;
+
+- if (n > NETEM_DIST_MAX)
++ if (!n || n > NETEM_DIST_MAX)
+ return -EINVAL;
+
+ s = sizeof(struct disttable) + n * sizeof(s16);
f2fs-fix-to-do-sanity-check-on-segment-bitmap-of-lfs.patch
drm-flush-output-polling-on-shutdown.patch
bluetooth-btrtl-additional-realtek-8822ce-bluetooth-.patch
+arcnet-provide-a-buffer-big-enough-to-actually-receive-packets.patch
+cdc_ncm-fix-divide-by-zero-caused-by-invalid-wmaxpacketsize.patch
+net-phy-fix-dp83865-10-mbps-hdx-loopback-disable-function.patch
+openvswitch-change-type-of-upcall_pid-attribute-to-nla_unspec.patch
+sch_netem-fix-a-divide-by-zero-in-tabledist.patch
+skge-fix-checksum-byte-order.patch
+usbnet-ignore-endpoints-with-invalid-wmaxpacketsize.patch
+usbnet-sanity-checking-of-packet-sizes-and-device-mtu.patch
+misdn-enforce-cap_net_raw-for-raw-sockets.patch
+appletalk-enforce-cap_net_raw-for-raw-sockets.patch
+ax25-enforce-cap_net_raw-for-raw-sockets.patch
+ieee802154-enforce-cap_net_raw-for-raw-sockets.patch
+nfc-enforce-cap_net_raw-for-raw-sockets.patch
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Stephen Hemminger <stephen@networkplumber.org>
+Date: Fri, 20 Sep 2019 18:18:26 +0200
+Subject: skge: fix checksum byte order
+
+From: Stephen Hemminger <stephen@networkplumber.org>
+
+[ Upstream commit 5aafeb74b5bb65b34cc87c7623f9fa163a34fa3b ]
+
+Running old skge driver on PowerPC causes checksum errors
+because hardware reported 1's complement checksum is in little-endian
+byte order.
+
+Reported-by: Benoit <benoit.sansoni@gmail.com>
+Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/ethernet/marvell/skge.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/marvell/skge.c
++++ b/drivers/net/ethernet/marvell/skge.c
+@@ -3114,7 +3114,7 @@ static struct sk_buff *skge_rx_get(struc
+ skb_put(skb, len);
+
+ if (dev->features & NETIF_F_RXCSUM) {
+- skb->csum = csum;
++ skb->csum = le16_to_cpu(csum);
+ skb->ip_summed = CHECKSUM_COMPLETE;
+ }
+
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: "Bjørn Mork" <bjorn@mork.no>
+Date: Wed, 18 Sep 2019 14:17:38 +0200
+Subject: usbnet: ignore endpoints with invalid wMaxPacketSize
+
+From: "Bjørn Mork" <bjorn@mork.no>
+
+[ Upstream commit 8d3d7c2029c1b360f1a6b0a2fca470b57eb575c0 ]
+
+Endpoints with zero wMaxPacketSize are not usable for transferring
+data. Ignore such endpoints when looking for valid in, out and
+status pipes, to make the drivers more robust against invalid and
+meaningless descriptors.
+
+The wMaxPacketSize of these endpoints are used for memory allocations
+and as divisors in many usbnet minidrivers. Avoiding zero is therefore
+critical.
+
+Signed-off-by: Bjørn Mork <bjorn@mork.no>
+Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/usb/usbnet.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/net/usb/usbnet.c
++++ b/drivers/net/usb/usbnet.c
+@@ -115,6 +115,11 @@ int usbnet_get_endpoints(struct usbnet *
+ int intr = 0;
+
+ e = alt->endpoint + ep;
++
++ /* ignore endpoints which cannot transfer data */
++ if (!usb_endpoint_maxp(&e->desc))
++ continue;
++
+ switch (e->desc.bmAttributes) {
+ case USB_ENDPOINT_XFER_INT:
+ if (!usb_endpoint_dir_in(&e->desc))
--- /dev/null
+From foo@baz Tue 01 Oct 2019 04:21:39 PM CEST
+From: Oliver Neukum <oneukum@suse.com>
+Date: Thu, 19 Sep 2019 10:23:08 +0200
+Subject: usbnet: sanity checking of packet sizes and device mtu
+
+From: Oliver Neukum <oneukum@suse.com>
+
+[ Upstream commit 280ceaed79f18db930c0cc8bb21f6493490bf29c ]
+
+After a reset packet sizes and device mtu can change and need
+to be reevaluated to calculate queue sizes.
+Malicious devices can set this to zero and we divide by it.
+Introduce sanity checking.
+
+Reported-and-tested-by: syzbot+6102c120be558c885f04@syzkaller.appspotmail.com
+Signed-off-by: Oliver Neukum <oneukum@suse.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/usb/usbnet.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/net/usb/usbnet.c
++++ b/drivers/net/usb/usbnet.c
+@@ -352,6 +352,8 @@ void usbnet_update_max_qlen(struct usbne
+ {
+ enum usb_device_speed speed = dev->udev->speed;
+
++ if (!dev->rx_urb_size || !dev->hard_mtu)
++ goto insanity;
+ switch (speed) {
+ case USB_SPEED_HIGH:
+ dev->rx_qlen = MAX_QUEUE_MEMORY / dev->rx_urb_size;
+@@ -367,6 +369,7 @@ void usbnet_update_max_qlen(struct usbne
+ dev->tx_qlen = 5 * MAX_QUEUE_MEMORY / dev->hard_mtu;
+ break;
+ default:
++insanity:
+ dev->rx_qlen = dev->tx_qlen = 4;
+ }
+ }
projects / thirdparty / kernel / stable-queue.git / commitdiff
