- 09 Feb, 2021 5 commits
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Vladimir Oltean authored
There are several issues which may be seen when the link goes down while forwarding traffic, all of which can be attributed to the fact that the port flushing procedure from the reference manual was not closely followed. With flow control enabled on both the ingress port and the egress port, it may happen when a link goes down that Ethernet packets are in flight. In flow control mode, frames are held back and not dropped. When there is enough traffic in flight (example: iperf3 TCP), then the ingress port might enter congestion and never exit that state. This is a problem, because it is the egress port's link that went down, and that has caused the inability of the ingress port to send packets to any other port. This is solved by flushing the egress port's queues when it goes down. There is also a problem when performing stream splitting for IEEE 802.1CB traffic (not yet upstream, but a sort of multicast, basically). There, if one port from the destination ports mask goes down, splitting the stream towards the other destinations will no longer be performed. This can be traced down to this line: ocelot_port_writel(ocelot_port, 0, DEV_MAC_ENA_CFG); which should have been instead, as per the reference manual: ocelot_port_rmwl(ocelot_port, 0, DEV_MAC_ENA_CFG_RX_ENA, DEV_MAC_ENA_CFG); Basically only DEV_MAC_ENA_CFG_RX_ENA should be disabled, but not DEV_MAC_ENA_CFG_TX_ENA - I don't have further insight into why that is the case, but apparently multicasting to several ports will cause issues if at least one of them doesn't have DEV_MAC_ENA_CFG_TX_ENA set. I am not sure what the state of the Ocelot VSC7514 driver is, but probably not as bad as Felix/Seville, since VSC7514 uses phylib and has the following in ocelot_adjust_link: if (!phydev->link) return; therefore the port is not really put down when the link is lost, unlike the DSA drivers which use .phylink_mac_link_down for that. Nonetheless, I put ocelot_port_flush() in the common ocelot.c because it needs to access some registers from drivers/net/ethernet/mscc/ocelot_rew.h which are not exported in include/soc/mscc/ and a bugfix patch should probably not move headers around. Fixes: bdeced75 ("net: dsa: felix: Add PCS operations for PHYLINK") Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Horatiu Vultur says: ==================== bridge: mrp: Fix br_mrp_port_switchdev_set_state Based on the discussion here[1], there was a problem with the function br_mrp_port_switchdev_set_state. The problem was that it was called both with BR_STATE* and BR_MRP_PORT_STATE* types. This patch series fixes this issue and removes SWITCHDEV_ATTR_ID_MRP_PORT_STAT because is not used anymore. [1] https://www.spinics.net/lists/netdev/msg714816.html ==================== Signed-off-by:
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Horatiu Vultur authored
Now that MRP started to use also SWITCHDEV_ATTR_ID_PORT_STP_STATE to notify HW, then SWITCHDEV_ATTR_ID_MRP_PORT_STAT is not used anywhere else, therefore we can remove it. Fixes: c284b545 ("switchdev: mrp: Extend switchdev API to offload MRP") Signed-off-by:
Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by:
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Horatiu Vultur authored
The function br_mrp_port_switchdev_set_state was called both with MRP port state and STP port state, which is an issue because they don't match exactly. Therefore, update the function to be used only with STP port state and use the id SWITCHDEV_ATTR_ID_PORT_STP_STATE. The choice of using STP over MRP is that the drivers already implement SWITCHDEV_ATTR_ID_PORT_STP_STATE and already in SW we update the port STP state. Fixes: 9a9f26e8 ("bridge: mrp: Connect MRP API with the switchdev API") Fixes: fadd4091 ("bridge: switchdev: mrp: Implement MRP API for switchdev") Fixes: 2f1a11ae ("bridge: mrp: Add MRP interface.") Reported-by:
Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by:
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Edwin Peer authored
Prevent netif_tx_disable() running concurrently with dev_watchdog() by taking the device global xmit lock. Otherwise, the recommended: netif_carrier_off(dev); netif_tx_disable(dev); driver shutdown sequence can happen after the watchdog has already checked carrier, resulting in possible false alarms. This is because netif_tx_lock() only sets the frozen bit without maintaining the locks on the individual queues. Fixes: c3f26a26 ("netdev: Fix lockdep warnings in multiqueue configurations.") Signed-off-by:
Edwin Peer <edwin.peer@broadcom.com> Reviewed-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
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- 08 Feb, 2021 2 commits
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Stefano Garzarella authored
If the socket is closed or is being released, some resources used by virtio_transport_space_update() such as 'vsk->trans' may be released. To avoid a use after free bug we should only update the available credit when we are sure the socket is still open and we have the lock held. Fixes: 06a8fc78 ("VSOCK: Introduce virtio_vsock_common.ko") Signed-off-by:
Stefano Garzarella <sgarzare@redhat.com> Acked-by:
Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/r/20210208144454.84438-1-sgarzare@redhat.comSigned-off-by:
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NeilBrown authored
The sctp transport seq_file iterators take a reference to the transport in the ->start and ->next functions and releases the reference in the ->show function. The preferred handling for such resources is to release them in the subsequent ->next or ->stop function call. Since Commit 1f4aace6 ("fs/seq_file.c: simplify seq_file iteration code and interface") there is no guarantee that ->show will be called after ->next, so this function can now leak references. So move the sctp_transport_put() call to ->next and ->stop. Fixes: 1f4aace6 ("fs/seq_file.c: simplify seq_file iteration code and interface") Reported-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
NeilBrown <neilb@suse.de> Acked-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
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- 06 Feb, 2021 11 commits
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Shay Agroskin authored
The verdict returned from ena_xdp_execute() is used to determine the fate of the RX buffer's page. In case of XDP Redirect/TX error the verdict should be set to XDP_ABORTED, otherwise the page won't be freed. Fixes: a318c70a ("net: ena: introduce XDP redirect implementation") Signed-off-by:
Shay Agroskin <shayagr@amazon.com> Signed-off-by:
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Norbert Slusarek authored
A possible locking issue in vsock_connect_timeout() was recognized by Eric Dumazet which might cause a null pointer dereference in vsock_transport_cancel_pkt(). This patch assures that vsock_transport_cancel_pkt() will be called within the lock, so a race condition won't occur which could result in vsk->transport to be set to NULL. Fixes: 380feae0 ("vsock: cancel packets when failing to connect") Reported-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
Norbert Slusarek <nslusarek@gmx.net> Reviewed-by:
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Norbert Slusarek authored
In vsock_stream_connect(), a thread will enter schedule_timeout(). While being scheduled out, another thread can enter vsock_stream_connect() as well and set vsk->transport to NULL. In case a signal was sent, the first thread can leave schedule_timeout() and vsock_transport_cancel_pkt() will be called right after. Inside vsock_transport_cancel_pkt(), a null dereference will happen on transport->cancel_pkt. Fixes: c0cfa2d8 ("vsock: add multi-transports support") Signed-off-by:
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Sukadev Bhattiprolu authored
Normally we clear the failover_pending flag when processing the reset. But if we are unable to schedule a failover reset we must clear the flag ourselves. We could fail to schedule the reset if we are in PROBING state (eg: when booting via kexec) or because we could not allocate memory. Thanks to Cris Forno for helping isolate the problem and for testing. Fixes: 1d850493 ("powerpc/vnic: Extend "failover pending" window") Signed-off-by:
Sukadev Bhattiprolu <sukadev@linux.ibm.com> Tested-by:
Cristobal Forno <cforno12@linux.ibm.com> Link: https://lore.kernel.org/r/20210203050802.680772-1-sukadev@linux.ibm.comSigned-off-by:
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Jakub Kicinski authored
Merge tag 'wireless-drivers-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers Kalle Valo says: ==================== wireless-drivers fixes for v5.11 Third, and most likely the last, set of fixes for v5.11. Two very small fixes. ath9k * fix build regression related to LEDS_CLASS mt76 * fix a memory leak * tag 'wireless-drivers-2021-02-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers: mt76: dma: fix a possible memory leak in mt76_add_fragment() ath9k: fix build error with LEDS_CLASS=m ==================== Link: https://lore.kernel.org/r/20210205163434.14D94C433ED@smtp.codeaurora.orgSigned-off-by:
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Mohammad Athari Bin Ismail authored
When disable CBS, mode_to_use parameter is not updated even the operation mode of Tx Queue is changed to Data Centre Bridging (DCB). Therefore, when tc_setup_cbs() function is called to re-enable CBS, the operation mode of Tx Queue remains at DCB, which causing CBS fails to work. This patch updates the value of mode_to_use parameter to MTL_QUEUE_DCB after operation mode of Tx Queue is changed to DCB in stmmac_dma_qmode() callback function. Fixes: 1f705bc6 ("net: stmmac: Add support for CBS QDISC") Suggested-by:
Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by:
Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com> Signed-off-by:
Song, Yoong Siang <yoong.siang.song@intel.com> Reviewed-by:
Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by:
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Jakub Kicinski authored
Camelia Groza says: ==================== dpaa_eth: A050385 erratum workaround fixes under XDP This series addresses issue with the current workaround for the A050385 erratum in XDP scenarios. The first patch makes sure the xdp_frame structure stored at the start of new buffers isn't overwritten. The second patch decreases the required data alignment value, thus preventing unnecessary realignments. The third patch moves the data in place to align it, instead of allocating a new buffer for each frame that breaks the alignment rules, thus bringing an up to 40% performance increase. With this change, the impact of the erratum workaround is reduced in many cases to a single digit decrease, and to lower double digits in single flow scenarios. Changes in v2: - guarantee enough tailroom is available for the shared_info in 1/3 ==================== Link: https://lore.kernel.org/r/cover.1612456902.git.camelia.groza@nxp.comSigned-off-by:
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Camelia Groza authored
The XDP frame's headroom might be large enough to accommodate the xdpf backpointer as well as shifting the data to an aligned address. Try this first before resorting to allocating a new buffer and copying the data. Suggested-by:
Maciej Fijalkowski <maciej.fijalkowski@intel.com> Signed-off-by:
Camelia Groza <camelia.groza@nxp.com> Acked-by:
Madalin Bucur <madalin.bucur@oss.nxp.com> Signed-off-by:
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Camelia Groza authored
The 256 byte data alignment is required for preventing DMA transaction splits when crossing 4K page boundaries. Since XDP deals only with page sized buffers or less, this restriction isn't needed. Instead, the data only needs to be aligned to 64 bytes to prevent DMA transaction splits. These lessened restrictions can increase performance by widening the pool of permitted data alignments and preventing unnecessary realignments. Fixes: ae680bcb ("dpaa_eth: implement the A050385 erratum workaround for XDP") Signed-off-by:
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Camelia Groza authored
When the erratum workaround is triggered, the newly created xdp_frame structure is stored at the start of the newly allocated buffer. Avoid the structure from being overwritten by explicitly reserving enough space in the buffer for storing it. Account for the fact that the structure's size might increase in time by aligning the headroom to DPAA_FD_DATA_ALIGNMENT bytes, thus guaranteeing the data's alignment. Fixes: ae680bcb ("dpaa_eth: implement the A050385 erratum workaround for XDP") Signed-off-by:
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Eric Dumazet authored
Commit c8079432 ("net: Fix packet reordering caused by GRO and listified RX cooperation") had the unfortunate effect of adding latencies in common workloads. Before the patch, GRO packets were immediately passed to upper stacks. After the patch, we can accumulate quite a lot of GRO packets (depdending on NAPI budget). My fix is counting in napi->rx_count number of segments instead of number of logical packets. Fixes: c8079432 ("net: Fix packet reordering caused by GRO and listified RX cooperation") Signed-off-by:
Eric Dumazet <edumazet@google.com> Bisected-by:
John Sperbeck <jsperbeck@google.com> Tested-by:
Jian Yang <jianyang@google.com> Cc: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by:
Saeed Mahameed <saeedm@nvidia.com> Reviewed-by:
Edward Cree <ecree.xilinx@gmail.com> Reviewed-by:
Alexander Lobakin <alobakin@pm.me> Link: https://lore.kernel.org/r/20210204213146.4192368-1-eric.dumazet@gmail.comSigned-off-by:
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- 05 Feb, 2021 10 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfJakub Kicinski authored
Pablo Neira Ayuso says: ==================== Netfilter fixes for net 1) Fix combination of --reap and --update in xt_recent that triggers UAF, from Jozsef Kadlecsik. 2) Fix current year in nft_meta selftest, from Fabian Frederick. 3) Fix possible UAF in the netns destroy path of nftables. 4) Fix incorrect checksum calculation when mangling ports in flowtable, from Sven Auhagen. * git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf: netfilter: flowtable: fix tcp and udp header checksum update netfilter: nftables: fix possible UAF over chains from packet path in netns selftests: netfilter: fix current year netfilter: xt_recent: Fix attempt to update deleted entry ==================== Link: https://lore.kernel.org/r/20210205001727.2125-1-pablo@netfilter.orgSigned-off-by:
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Vadim Fedorenko authored
PACKET_TX_TIMESTAMP is defined in if_packet.h but it is not included in test. Include it instead of <netpacket/packet.h> otherwise the error of redefinition arrives. Also fix the compiler warning about ambiguous control flow by adding explicit braces. Fixes: 8fe2f761 ("net-timestamp: expand documentation") Suggested-by:
Willem de Bruijn <willemdebruijn.kernel@gmail.com> Signed-off-by:
Vadim Fedorenko <vfedorenko@novek.ru> Acked-by:
Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/1612461034-24524-1-git-send-email-vfedorenko@novek.ruSigned-off-by:
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Vladimir Oltean authored
Since teardown is supposed to undo the effects of the setup method, it should be called in the error path for dsa_switch_setup, not just in dsa_switch_teardown. Fixes: 5e3f847a ("net: dsa: Add teardown callback for drivers") Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20210204163351.2929670-1-vladimir.oltean@nxp.comSigned-off-by:
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Vladimir Oltean authored
Michael tried to enable Advanced Error Reporting through the ENETC's Root Complex Event Collector, and the system started spitting out single bit correctable ECC errors coming from the ENETC interfaces: pcieport 0000:00:1f.0: AER: Multiple Corrected error received: 0000:00:00.0 fsl_enetc 0000:00:00.0: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID) fsl_enetc 0000:00:00.0: device [1957:e100] error status/mask=00004000/00000000 fsl_enetc 0000:00:00.0: [14] CorrIntErr fsl_enetc 0000:00:00.1: PCIe Bus Error: severity=Corrected, type=Transaction Layer, (Receiver ID) fsl_enetc 0000:00:00.1: device [1957:e100] error status/mask=00004000/00000000 fsl_enetc 0000:00:00.1: [14] CorrIntErr Further investigating the port correctable memory error detect register (PCMEDR) shows that these AER errors have an associated SOURCE_ID of 6 (RFS/RSS): $ devmem 0x1f8010e10 32 0xC0000006 $ devmem 0x1f8050e10 32 0xC0000006 Discussion with the hardware design engineers reveals that on LS1028A, the hardware does not do initialization of that RFS/RSS memory, and that software should clear/initialize the entire table before starting to operate. That comes as a bit of a surprise, since the driver does not do initialization of the RFS memory. Also, the initialization of the Receive Side Scaling is done only partially. Even though the entire ENETC IP has a single shared flow steering memory, the flow steering service should returns matches only for TCAM entries that are within the range of the Station Interface that is doing the search. Therefore, it should be sufficient for a Station Interface to initialize all of its own entries in order to avoid any ECC errors, and only the Station Interfaces in use should need initialization. There are Physical Station Interfaces associated with PCIe PFs and Virtual Station Interfaces associated with PCIe VFs. We let the PF driver initialize the entire port's memory, which includes the RFS entries which are going to be used by the VF. Reported-by:
Michael Walle <michael@walle.cc> Fixes: d4fd0404 ("enetc: Introduce basic PF and VF ENETC ethernet drivers") Signed-off-by:
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Andrea Parri (Microsoft) authored
Commit 44144185 ("hv_netvsc: Add validation for untrusted Hyper-V values") added validation to rndis_filter_receive_data() (and rndis_filter_receive()) which introduced NVSP_STAT_FAIL-scenarios where the count is not updated/reset. Fix this omission, and prevent similar scenarios from occurring in the future. Reported-by:
Juan Vazquez <juvazq@microsoft.com> Signed-off-by:
Andrea Parri (Microsoft) <parri.andrea@gmail.com> Fixes: 44144185 ("hv_netvsc: Add validation for untrusted Hyper-V values") Reviewed-by:
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Willem de Bruijn authored
When iteratively computing a checksum with csum_block_add, track the offset "pos" to correctly rotate in csum_block_add when offset is odd. The open coded implementation of skb_copy_and_csum_datagram did this. With the switch to __skb_datagram_iter calling csum_and_copy_to_iter, pos was reinitialized to 0 on each call. Bring back the pos by passing it along with the csum to the callback. Changes v1->v2 - pass csum value, instead of csump pointer (Alexander Duyck) Link: https://lore.kernel.org/netdev/20210128152353.GB27281@optiplex/ Fixes: 950fcaec ("datagram: consolidate datagram copy to iter helpers") Reported-by:
Oliver Graute <oliver.graute@gmail.com> Signed-off-by:
Alexander Duyck <alexanderduyck@fb.com> Reviewed-by:
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Alex Elder authored
In gsi_channel_setup(), we check to see if the configuration data contains any information about channels that are not supported by the hardware. If one is found, we abort the setup process, but the error code (ret) is not set in this case. Fix this bug. Fixes: 650d1603 ("soc: qcom: ipa: the generic software interface") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Alex Elder <elder@linaro.org> Link: https://lore.kernel.org/r/20210204010655.15619-1-elder@linaro.orgSigned-off-by:
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Xie He authored
It's not meaningful to pass on LAPB error codes to HDLC code or other parts of the system, because they will not understand the error codes. Instead, use system-wide recognizable error codes. Fixes: f362e5fe ("wan/hdlc_x25: make lapb params configurable") Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by:
Xie He <xie.he.0141@gmail.com> Acked-by:
Martin Schiller <ms@dev.tdt.de> Link: https://lore.kernel.org/r/20210203071541.86138-1-xie.he.0141@gmail.comSigned-off-by:
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David Howells authored
At the end of rxrpc_release_call(), rxrpc_cleanup_ring() is called to clear the Rx/Tx skbuff ring, but this doesn't lock the ring whilst it's accessing it. Unfortunately, rxrpc_resend() might be trying to retransmit a packet concurrently with this - and whilst it does lock the ring, this isn't protection against rxrpc_cleanup_call(). Fix this by removing the call to rxrpc_cleanup_ring() from rxrpc_release_call(). rxrpc_cleanup_ring() will be called again anyway from rxrpc_cleanup_call(). The earlier call is just an optimisation to recycle skbuffs more quickly. Alternative solutions include rxrpc_release_call() could try to cancel the work item or wait for it to complete or rxrpc_cleanup_ring() could lock when accessing the ring (which would require a bh lock). This can produce a report like the following: BUG: KASAN: use-after-free in rxrpc_send_data_packet+0x19b4/0x1e70 net/rxrpc/output.c:372 Read of size 4 at addr ffff888011606e04 by task kworker/0:0/5 ... Workqueue: krxrpcd rxrpc_process_call Call Trace: ... kasan_report.cold+0x79/0xd5 mm/kasan/report.c:413 rxrpc_send_data_packet+0x19b4/0x1e70 net/rxrpc/output.c:372 rxrpc_resend net/rxrpc/call_event.c:266 [inline] rxrpc_process_call+0x1634/0x1f60 net/rxrpc/call_event.c:412 process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275 ... Allocated by task 2318: ... sock_alloc_send_pskb+0x793/0x920 net/core/sock.c:2348 rxrpc_send_data+0xb51/0x2bf0 net/rxrpc/sendmsg.c:358 rxrpc_do_sendmsg+0xc03/0x1350 net/rxrpc/sendmsg.c:744 rxrpc_sendmsg+0x420/0x630 net/rxrpc/af_rxrpc.c:560 ... Freed by task 2318: ... kfree_skb+0x140/0x3f0 net/core/skbuff.c:704 rxrpc_free_skb+0x11d/0x150 net/rxrpc/skbuff.c:78 rxrpc_cleanup_ring net/rxrpc/call_object.c:485 [inline] rxrpc_release_call+0x5dd/0x860 net/rxrpc/call_object.c:552 rxrpc_release_calls_on_socket+0x21c/0x300 net/rxrpc/call_object.c:579 rxrpc_release_sock net/rxrpc/af_rxrpc.c:885 [inline] rxrpc_release+0x263/0x5a0 net/rxrpc/af_rxrpc.c:916 __sock_release+0xcd/0x280 net/socket.c:597 ... The buggy address belongs to the object at ffff888011606dc0 which belongs to the cache skbuff_head_cache of size 232 Fixes: 248f219c ("rxrpc: Rewrite the data and ack handling code") Reported-by: syzbot+174de899852504e4a74a@syzkaller.appspotmail.com Reported-by: syzbot+3d1c772efafd3c38d007@syzkaller.appspotmail.com Signed-off-by:
David Howells <dhowells@redhat.com> cc: Hillf Danton <hdanton@sina.com> Link: https://lore.kernel.org/r/161234207610.653119.5287360098400436976.stgit@warthog.procyon.org.ukSigned-off-by:
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Raju Rangoju authored
Signed-off-by:
Raju Rangoju <rajur@chelsio.com> Link: https://lore.kernel.org/r/20210202182511.8109-1-rajur@chelsio.comSigned-off-by:
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- 04 Feb, 2021 4 commits
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Juergen Gross authored
Since commit 23025393 ("xen/netback: use lateeoi irq binding") xenvif_rx_ring_slots_available() is no longer called only from the rx queue kernel thread, so it needs to access the rx queue with the associated queue held. Reported-by:
Igor Druzhinin <igor.druzhinin@citrix.com> Fixes: 23025393 ("xen/netback: use lateeoi irq binding") Signed-off-by:
Juergen Gross <jgross@suse.com> Acked-by:
Wei Liu <wl@xen.org> Link: https://lore.kernel.org/r/20210202070938.7863-1-jgross@suse.comSigned-off-by:
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Vadim Fedorenko authored
TLS selftests were broken also because of use of structure that was not exported to UAPI. Fix by defining the union in tests. Fixes: 4f336e88 (selftests/tls: add CHACHA20-POLY1305 to tls selftests) Reported-by:
Rong Chen <rong.a.chen@intel.com> Signed-off-by:
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Sabyrzhan Tasbolatov authored
syzbot found WARNING in qrtr_tun_write_iter [1] when write_iter length exceeds KMALLOC_MAX_SIZE causing order >= MAX_ORDER condition. Additionally, there is no check for 0 length write. [1] WARNING: mm/page_alloc.c:5011 [..] Call Trace: alloc_pages_current+0x18c/0x2a0 mm/mempolicy.c:2267 alloc_pages include/linux/gfp.h:547 [inline] kmalloc_order+0x2e/0xb0 mm/slab_common.c:837 kmalloc_order_trace+0x14/0x120 mm/slab_common.c:853 kmalloc include/linux/slab.h:557 [inline] kzalloc include/linux/slab.h:682 [inline] qrtr_tun_write_iter+0x8a/0x180 net/qrtr/tun.c:83 call_write_iter include/linux/fs.h:1901 [inline] Reported-by: syzbot+c2a7e5c5211605a90865@syzkaller.appspotmail.com Signed-off-by:
Sabyrzhan Tasbolatov <snovitoll@gmail.com> Link: https://lore.kernel.org/r/20210202092059.1361381-1-snovitoll@gmail.comSigned-off-by:
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Sven Auhagen authored
When updating the tcp or udp header checksum on port nat the function inet_proto_csum_replace2 with the last parameter pseudohdr as true. This leads to an error in the case that GRO is used and packets are split up in GSO. The tcp or udp checksum of all packets is incorrect. The error is probably masked due to the fact the most network driver implement tcp/udp checksum offloading. It also only happens when GRO is applied and not on single packets. The error is most visible when using a pppoe connection which is not triggering the tcp/udp checksum offload. Fixes: ac2a6666 ("netfilter: add generic flow table infrastructure") Signed-off-by:
Sven Auhagen <sven.auhagen@voleatech.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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- 03 Feb, 2021 4 commits
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Pablo Neira Ayuso authored
Although hooks are released via call_rcu(), chain and rule objects are immediately released while packets are still walking over these bits. This patch adds the .pre_exit callback which is invoked before synchronize_rcu() in the netns framework to stay safe. Remove a comment which is not valid anymore since the core does not use synchronize_net() anymore since 8c873e21 ("netfilter: core: free hooks with call_rcu"). Suggested-by:
Florian Westphal <fw@strlen.de> Fixes: df05ef87 ("netfilter: nf_tables: release objects on netns destruction") Signed-off-by:
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Fabian Frederick authored
use date %Y instead of %G to read current year Problem appeared when running lkp-tests on 01/01/2021 Fixes: 48d072c4 ("selftests: netfilter: add time counter check") Reported-by:
kernel test robot <oliver.sang@intel.com> Signed-off-by:
Fabian Frederick <fabf@skynet.be> Signed-off-by:
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Jozsef Kadlecsik authored
When both --reap and --update flag are specified, there's a code path at which the entry to be updated is reaped beforehand, which then leads to kernel crash. Reap only entries which won't be updated. Fixes kernel bugzilla #207773. Link: https://bugzilla.kernel.org/show_bug.cgi?id=207773Reported-by:
Reindl Harald <h.reindl@thelounge.net> Fixes: 0079c5ae ("netfilter: xt_recent: add an entry reaper") Signed-off-by:
Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by:
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Christoph Schemmel authored
Adding support for Cinterion MV31 with PID 0x00B7. T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 11 Spd=5000 MxCh= 0 D: Ver= 3.20 Cls=ef(misc ) Sub=02 Prot=01 MxPS= 9 #Cfgs= 1 P: Vendor=1e2d ProdID=00b7 Rev=04.14 S: Manufacturer=Cinterion S: Product=Cinterion USB Mobile Broadband S: SerialNumber=b3246eed C: #Ifs= 4 Cfg#= 1 Atr=a0 MxPwr=896mA I: If#=0x0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan I: If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#=0x3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option Signed-off-by:
Christoph Schemmel <christoph.schemmel@gmail.com> Link: https://lore.kernel.org/r/20210202084523.4371-1-christoph.schemmel@gmail.comSigned-off-by:
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- 02 Feb, 2021 4 commits
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git://github.com/ojeda/linuxLinus Torvalds authored
Pull clang-format update from Miguel Ojeda: "Update with the latest for_each macro list" * tag 'clang-format-for-linux-v5.11-rc7' of git://github.com/ojeda/linux: clang-format: Update with the latest for_each macro list
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git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull dma-mapping fix from Christoph Hellwig: "Fix a kernel crash in the new dma-mapping benchmark test (Barry Song)" * tag 'dma-mapping-5.11-1' of git://git.infradead.org/users/hch/dma-mapping: dma-mapping: benchmark: fix kernel crash when dma_map_single fails
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull vdpa fix from Michael Tsirkin: "A single mlx bugfix" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vdpa/mlx5: Fix memory key MTT population
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Networking fixes for 5.11-rc7, including fixes from bpf and mac80211 trees. Current release - regressions: - ip_tunnel: fix mtu calculation - mlx5: fix function calculation for page trees Previous releases - regressions: - vsock: fix the race conditions in multi-transport support - neighbour: prevent a dead entry from updating gc_list - dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add Previous releases - always broken: - bpf, cgroup: two copy_{from,to}_user() warn_on_once splats for BPF cgroup getsockopt infra when user space is trying to race against optlen, from Loris Reiff. - bpf: add missing fput() in BPF inode storage map update helper - udp: ipv4: manipulate network header of NATed UDP GRO fraglist - mac80211: fix station rate table updates on assoc - r8169: work around RTL8125 UDP HW bug - igc: report speed and duplex as unknown when device is runtime suspended - rxrpc: fix deadlock around release of dst cached on udp tunnel" * tag 'net-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (36 commits) net: hsr: align sup_multicast_addr in struct hsr_priv to u16 boundary net: ipa: fix two format specifier errors net: ipa: use the right accessor in ipa_endpoint_status_skip() net: ipa: be explicit about endianness net: ipa: add a missing __iomem attribute net: ipa: pass correct dma_handle to dma_free_coherent() r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS net: mvpp2: TCAM entry enable should be written after SRAM data net: lapb: Copy the skb before sending a packet net/mlx5e: Release skb in case of failure in tc update skb net/mlx5e: Update max_opened_tc also when channels are closed net/mlx5: Fix leak upon failure of rule creation net/mlx5: Fix function calculation for page trees docs: networking: swap words in icmp_errors_use_inbound_ifaddr doc udp: ipv4: manipulate network header of NATed UDP GRO fraglist net: ip_tunnel: fix mtu calculation vsock: fix the race conditions in multi-transport support net: sched: replaced invalid qdisc tree flush helper in qdisc_replace ibmvnic: device remove has higher precedence over reset ...
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