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2020-07-02Merge tag 'nfsd-5.8-1' of git://linux-nfs.org/~bfields/linuxLinus Torvalds1-0/+1
Pull nfsd fixes from Bruce Fields: "Fixes for a umask bug on exported filesystems lacking ACL support, a leak and a module unloading bug in the /proc/fs/nfsd/clients/ code, and a compile warning" * tag 'nfsd-5.8-1' of git://linux-nfs.org/~bfields/linux: SUNRPC: Add missing definition of ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE nfsd: fix nfsdfs inode reference count leak nfsd4: fix nfsdfs reference count loop nfsd: apply umask on fs without ACL support
2020-06-29SUNRPC: Add missing definition of ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGEChristophe Leroy1-0/+1
Even if that's only a warning, not including asm/cacheflush.h leads to svc_flush_bvec() being empty allthough powerpc defines ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE. CC net/sunrpc/svcsock.o net/sunrpc/svcsock.c:227:5: warning: "ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE" is not defined [-Wundef] #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE ^ Include linux/highmem.h so that asm/cacheflush.h will be included. Reported-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reported-by: kernel test robot <lkp@intel.com> Fixes: ca07eda33e01 ("SUNRPC: Refactor svc_recvfrom()") Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Acked-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2020-06-27Merge tag 'nfs-for-5.8-2' of git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds7-41/+57
Pull NFS client bugfixes from Anna Schumaker: "Stable Fixes: - xprtrdma: Fix handling of RDMA_ERROR replies - sunrpc: Fix rollback in rpc_gssd_dummy_populate() - pNFS/flexfiles: Fix list corruption if the mirror count changes - NFSv4: Fix CLOSE not waiting for direct IO completion - SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment() Other Fixes: - xprtrdma: Fix a use-after-free with r_xprt->rx_ep - Fix other xprtrdma races during disconnect - NFS: Fix memory leak of export_path" * tag 'nfs-for-5.8-2' of git://git.linux-nfs.org/projects/anna/linux-nfs: SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment() NFSv4 fix CLOSE not waiting for direct IO compeletion pNFS/flexfiles: Fix list corruption if the mirror count changes nfs: Fix memory leak of export_path sunrpc: fixed rollback in rpc_gssd_dummy_populate() xprtrdma: Fix handling of RDMA_ERROR replies xprtrdma: Clean up disconnect xprtrdma: Clean up synopsis of rpcrdma_flush_disconnect() xprtrdma: Use re_connect_status safely in rpcrdma_xprt_connect() xprtrdma: Prevent dereferencing r_xprt->rx_ep after it is freed
2020-06-26SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment()Chuck Lever1-0/+4
@subbuf is an output parameter of xdr_buf_subsegment(). A survey of call sites shows that @subbuf is always uninitialized before xdr_buf_segment() is invoked by callers. There are some execution paths through xdr_buf_subsegment() that do not set all of the fields in @subbuf, leaving some pointer fields containing garbage addresses. Subsequent processing of that buffer then results in a page fault. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: <stable@vger.kernel.org> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-06-26sunrpc: fixed rollback in rpc_gssd_dummy_populate()Vasily Averin1-0/+1
__rpc_depopulate(gssd_dentry) was lost on error path cc: stable@vger.kernel.org Fixes: commit 4b9a445e3eeb ("sunrpc: create a new dummy pipe for gssd to hold open") Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-06-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds105-270/+580
Pull networking fixes from David Miller: 1) Don't insert ESP trailer twice in IPSEC code, from Huy Nguyen. 2) The default crypto algorithm selection in Kconfig for IPSEC is out of touch with modern reality, fix this up. From Eric Biggers. 3) bpftool is missing an entry for BPF_MAP_TYPE_RINGBUF, from Andrii Nakryiko. 4) Missing init of ->frame_sz in xdp_convert_zc_to_xdp_frame(), from Hangbin Liu. 5) Adjust packet alignment handling in ax88179_178a driver to match what the hardware actually does. From Jeremy Kerr. 6) register_netdevice can leak in the case one of the notifiers fail, from Yang Yingliang. 7) Use after free in ip_tunnel_lookup(), from Taehee Yoo. 8) VLAN checks in sja1105 DSA driver need adjustments, from Vladimir Oltean. 9) tg3 driver can sleep forever when we get enough EEH errors, fix from David Christensen. 10) Missing {READ,WRITE}_ONCE() annotations in various Intel ethernet drivers, from Ciara Loftus. 11) Fix scanning loop break condition in of_mdiobus_register(), from Florian Fainelli. 12) MTU limit is incorrect in ibmveth driver, from Thomas Falcon. 13) Endianness fix in mlxsw, from Ido Schimmel. 14) Use after free in smsc95xx usbnet driver, from Tuomas Tynkkynen. 15) Missing bridge mrp configuration validation, from Horatiu Vultur. 16) Fix circular netns references in wireguard, from Jason A. Donenfeld. 17) PTP initialization on recovery is not done properly in qed driver, from Alexander Lobakin. 18) Endian conversion of L4 ports in filters of cxgb4 driver is wrong, from Rahul Lakkireddy. 19) Don't clear bound device TX queue of socket prematurely otherwise we get problems with ktls hw offloading, from Tariq Toukan. 20) ipset can do atomics on unaligned memory, fix from Russell King. 21) Align ethernet addresses properly in bridging code, from Thomas Martitz. 22) Don't advertise ipv4 addresses on SCTP sockets having ipv6only set, from Marcelo Ricardo Leitner. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (149 commits) rds: transport module should be auto loaded when transport is set sch_cake: fix a few style nits sch_cake: don't call diffserv parsing code when it is not needed sch_cake: don't try to reallocate or unshare skb unconditionally ethtool: fix error handling in linkstate_prepare_data() wil6210: account for napi_gro_receive never returning GRO_DROP hns: do not cast return value of napi_gro_receive to null socionext: account for napi_gro_receive never returning GRO_DROP wireguard: receive: account for napi_gro_receive never returning GRO_DROP vxlan: fix last fdb index during dump of fdb with nhid sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket tc-testing: avoid action cookies with odd length. bpf: tcp: bpf_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT net: dsa: sja1105: fix tc-gate schedule with single element net: dsa: sja1105: recalculate gating subschedule after deleting tc-gate rules net: dsa: sja1105: unconditionally free old gating config net: dsa: sja1105: move sja1105_compose_gating_subschedule at the top net: macb: free resources on failure path of at91ether_open() net: macb: call pm_runtime_put_sync on failure path ...
2020-06-25rds: transport module should be auto loaded when transport is setRao Shoaib1-9/+17
This enhancement auto loads transport module when the transport is set via SO_RDS_TRANSPORT socket option. Reviewed-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com> Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com> Signed-off-by: Rao Shoaib <rao.shoaib@oracle.com> Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25sch_cake: fix a few style nitsToke Høiland-Jørgensen1-2/+2
I spotted a few nits when comparing the in-tree version of sch_cake with the out-of-tree one: A redundant error variable declaration shadowing an outer declaration, and an indentation alignment issue. Fix both of these. Fixes: 046f6fd5daef ("sched: Add Common Applications Kept Enhanced (cake) qdisc") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25sch_cake: don't call diffserv parsing code when it is not neededToke Høiland-Jørgensen1-4/+9
As a further optimisation of the diffserv parsing codepath, we can skip it entirely if CAKE is configured to neither use diffserv-based classification, nor to zero out the diffserv bits. Fixes: c87b4ecdbe8d ("sch_cake: Make sure we can write the IP header before changing DSCP bits") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25sch_cake: don't try to reallocate or unshare skb unconditionallyIlya Ponetayev1-11/+30
cake_handle_diffserv() tries to linearize mac and network header parts of skb and to make it writable unconditionally. In some cases it leads to full skb reallocation, which reduces throughput and increases CPU load. Some measurements of IPv4 forward + NAPT on MIPS router with 580 MHz single-core CPU was conducted. It appears that on kernel 4.9 skb_try_make_writable() reallocates skb, if skb was allocated in ethernet driver via so-called 'build skb' method from page cache (it was discovered by strange increase of kmalloc-2048 slab at first). Obtain DSCP value via read-only skb_header_pointer() call, and leave linearization only for DSCP bleaching or ECN CE setting. And, as an additional optimisation, skip diffserv parsing entirely if it is not needed by the current configuration. Fixes: c87b4ecdbe8d ("sch_cake: Make sure we can write the IP header before changing DSCP bits") Signed-off-by: Ilya Ponetayev <i.ponetaev@ndmsystems.com> [ fix a few style issues, reflow commit message ] Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25ethtool: fix error handling in linkstate_prepare_data()Michal Kubecek1-6/+5
When getting SQI or maximum SQI value fails in linkstate_prepare_data(), we must not return without calling ethnl_ops_complete(dev) as that could result in imbalance between ethtool_ops ->begin() and ->complete() calls. Fixes: 806602191592 ("ethtool: provide UAPI for PHY Signal Quality Index (SQI)") Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25sctp: Don't advertise IPv4 addresses if ipv6only is set on the socketMarcelo Ricardo Leitner3-2/+7
If a socket is set ipv6only, it will still send IPv4 addresses in the INIT and INIT_ACK packets. This potentially misleads the peer into using them, which then would cause association termination. The fix is to not add IPv4 addresses to ipv6only sockets. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Tested-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTTNeal Cardwell1-3/+2
Mirja Kuehlewind reported a bug in Linux TCP CUBIC Hystart, where Hystart HYSTART_DELAY mechanism can exit Slow Start spuriously on an ACK when the minimum rtt of a connection goes down. From inspection it is clear from the existing code that this could happen in an example like the following: o The first 8 RTT samples in a round trip are 150ms, resulting in a curr_rtt of 150ms and a delay_min of 150ms. o The 9th RTT sample is 100ms. The curr_rtt does not change after the first 8 samples, so curr_rtt remains 150ms. But delay_min can be lowered at any time, so delay_min falls to 100ms. The code executes the HYSTART_DELAY comparison between curr_rtt of 150ms and delay_min of 100ms, and the curr_rtt is declared far enough above delay_min to force a (spurious) exit of Slow start. The fix here is simple: allow every RTT sample in a round trip to lower the curr_rtt. Fixes: ae27e98a5152 ("[TCP] CUBIC v2.3") Reported-by: Mirja Kuehlewind <mirja.kuehlewind@ericsson.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfDavid S. Miller54-15/+159
Pablo Neira Ayuso says: ==================== Netfilter fixes for net The following patchset contains Netfilter fixes for net, they are: 1) Unaligned atomic access in ipset, from Russell King. 2) Missing module description, from Rob Gill. 3) Patches to fix a module unload causing NULL pointer dereference in xtables, from David Wilder. For the record, I posting here his cover letter explaining the problem: A crash happened on ppc64le when running ltp network tests triggered by "rmmod iptable_mangle". See previous discussion in this thread: https://lists.openwall.net/netdev/2020/06/03/161 . In the crash I found in iptable_mangle_hook() that state->net->ipv4.iptable_mangle=NULL causing a NULL pointer dereference. net->ipv4.iptable_mangle is set to NULL in +iptable_mangle_net_exit() and called when ip_mangle modules is unloaded. A rmmod task was found running in the crash dump. A 2nd crash showed the same problem when running "rmmod iptable_filter" (net->ipv4.iptable_filter=NULL). To fix this I added .pre_exit hook in all iptable_foo.c. The pre_exit will un-register the underlying hook and exit would do the table freeing. The netns core does an unconditional +synchronize_rcu after the pre_exit hooks insuring no packets are in flight that have picked up the pointer before completing the un-register. These patches include changes for both iptables and ip6tables. We tested this fix with ltp running iptables01.sh and iptables01.sh -6 a loop for 72 hours. 4) Add a selftest for conntrack helper assignment, from Florian Westphal. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25net: bridge: enfore alignment for ethernet addressThomas Martitz1-1/+1
The eth_addr member is passed to ether_addr functions that require 2-byte alignment, therefore the member must be properly aligned to avoid unaligned accesses. The problem is in place since the initial merge of multicast to unicast: commit 6db6f0eae6052b70885562e1733896647ec1d807 bridge: multicast to unicast Fixes: 6db6f0eae605 ("bridge: multicast to unicast") Cc: Roopa Prabhu <roopa@cumulusnetworks.com> Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Cc: David S. Miller <davem@davemloft.net> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Felix Fietkau <nbd@nbd.name> Signed-off-by: Thomas Martitz <t.martitz@avm.de> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25tcp: don't ignore ECN CWR on pure ACKDenis Kirjanov1-3/+11
there is a problem with the CWR flag set in an incoming ACK segment and it leads to the situation when the ECE flag is latched forever the following packetdrill script shows what happens: // Stack receives incoming segments with CE set +0.1 <[ect0] . 11001:12001(1000) ack 1001 win 65535 +0.0 <[ce] . 12001:13001(1000) ack 1001 win 65535 +0.0 <[ect0] P. 13001:14001(1000) ack 1001 win 65535 // Stack repsonds with ECN ECHO +0.0 >[noecn] . 1001:1001(0) ack 12001 +0.0 >[noecn] E. 1001:1001(0) ack 13001 +0.0 >[noecn] E. 1001:1001(0) ack 14001 // Write a packet +0.1 write(3, ..., 1000) = 1000 +0.0 >[ect0] PE. 1001:2001(1000) ack 14001 // Pure ACK received +0.01 <[noecn] W. 14001:14001(0) ack 2001 win 65535 // Since CWR was sent, this packet should NOT have ECE set +0.1 write(3, ..., 1000) = 1000 +0.0 >[ect0] P. 2001:3001(1000) ack 14001 // but Linux will still keep ECE latched here, with packetdrill // flagging a missing ECE flag, expecting // >[ect0] PE. 2001:3001(1000) ack 14001 // in the script In the situation above we will continue to send ECN ECHO packets and trigger the peer to reduce the congestion window. To avoid that we can check CWR on pure ACKs received. v3: - Add a sequence check to avoid sending an ACK to an ACK v2: - Adjusted the comment - move CWR check before checking for unacknowledged packets Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-25netfilter: ip6tables: Add a .pre_exit hook in all ip6table_foo.c.David Wilder5-6/+44
Using new helpers ip6t_unregister_table_pre_exit() and ip6t_unregister_table_exit(). Fixes: b9e69e127397 ("netfilter: xtables: don't hook tables by default") Signed-off-by: David Wilder <dwilder@us.ibm.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-06-25netfilter: ip6tables: Split ip6t_unregister_table() into pre_exit and exit ↵David Wilder1-1/+14
helpers. The pre_exit will un-register the underlying hook and .exit will do the table freeing. The netns core does an unconditional synchronize_rcu after the pre_exit hooks insuring no packets are in flight that have picked up the pointer before completing the un-register. Fixes: b9e69e127397 ("netfilter: xtables: don't hook tables by default") Signed-off-by: David Wilder <dwilder@us.ibm.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-06-25netfilter: iptables: Add a .pre_exit hook in all iptable_foo.c.David Wilder5-7/+44
Using new helpers ipt_unregister_table_pre_exit() and ipt_unregister_table_exit(). Fixes: b9e69e127397 ("netfilter: xtables: don't hook tables by default") Signed-off-by: David Wilder <dwilder@us.ibm.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-06-25netfilter: iptables: Split ipt_unregister_table() into pre_exit and exit ↵David Wilder1-1/+14
helpers. The pre_exit will un-register the underlying hook and .exit will do the table freeing. The netns core does an unconditional synchronize_rcu after the pre_exit hooks insuring no packets are in flight that have picked up the pointer before completing the un-register. Fixes: b9e69e127397 ("netfilter: xtables: don't hook tables by default") Signed-off-by: David Wilder <dwilder@us.ibm.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-06-25netfilter: Add MODULE_DESCRIPTION entries to kernel modulesRob Gill41-0/+41
The user tool modinfo is used to get information on kernel modules, including a description where it is available. This patch adds a brief MODULE_DESCRIPTION to netfilter kernel modules (descriptions taken from Kconfig file or code comments) Signed-off-by: Rob Gill <rrobgill@protonmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-06-25netfilter: ipset: fix unaligned atomic accessRussell King1-0/+2
When using ip_set with counters and comment, traffic causes the kernel to panic on 32-bit ARM: Alignment trap: not handling instruction e1b82f9f at [<bf01b0dc>] Unhandled fault: alignment exception (0x221) at 0xea08133c PC is at ip_set_match_extensions+0xe0/0x224 [ip_set] The problem occurs when we try to update the 64-bit counters - the faulting address above is not 64-bit aligned. The problem occurs due to the way elements are allocated, for example: set->dsize = ip_set_elem_len(set, tb, 0, 0); map = ip_set_alloc(sizeof(*map) + elements * set->dsize); If the element has a requirement for a member to be 64-bit aligned, and set->dsize is not a multiple of 8, but is a multiple of four, then every odd numbered elements will be misaligned - and hitting an atomic64_add() on that element will cause the kernel to panic. ip_set_elem_len() must return a size that is rounded to the maximum alignment of any extension field stored in the element. This change ensures that is the case. Fixes: 95ad1f4a9358 ("netfilter: ipset: Fix extension alignment") Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-06-24dsa: Allow forwarding of redirected IGMP trafficDaniel Mack1-3/+34
The driver for Marvell switches puts all ports in IGMP snooping mode which results in all IGMP/MLD frames that ingress on the ports to be forwarded to the CPU only. The bridge code in the kernel can then interpret these frames and act upon them, for instance by updating the mdb in the switch to reflect multicast memberships of stations connected to the ports. However, the IGMP/MLD frames must then also be forwarded to other ports of the bridge so external IGMP queriers can track membership reports, and external multicast clients can receive query reports from foreign IGMP queriers. Currently, this is impossible as the EDSA tagger sets offload_fwd_mark on the skb when it unwraps the tagged frames, and that will make the switchdev layer prevent the skb from egressing on any other port of the same switch. To fix that, look at the To_CPU code in the DSA header and make forwarding of the frame possible for trapped IGMP packets. Introduce some #defines for the frame types to make the code a bit more comprehensive. This was tested on a Marvell 88E6352 variant. Signed-off-by: Daniel Mack <daniel@zonque.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-24openvswitch: take into account de-fragmentation/gso_size in ↵Lorenzo Bianconi1-2/+7
execute_check_pkt_len ovs connection tracking module performs de-fragmentation on incoming fragmented traffic. Take info account if traffic has been de-fragmented in execute_check_pkt_len action otherwise we will perform the wrong nested action considering the original packet size. This issue typically occurs if ovs-vswitchd adds a rule in the pipeline that requires connection tracking (e.g. OVN stateful ACLs) before execute_check_pkt_len action. Moreover take into account GSO fragment size for GSO packet in execute_check_pkt_len routine Fixes: 4d5ec89fc8d14 ("net: openvswitch: Add a new action check_pkt_len") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23net: Do not clear the sock TX queue in sk_set_socket()Tariq Toukan1-0/+2
Clearing the sock TX queue in sk_set_socket() might cause unexpected out-of-order transmit when called from sock_orphan(), as outstanding packets can pick a different TX queue and bypass the ones already queued. This is undesired in general. More specifically, it breaks the in-order scheduling property guarantee for device-offloaded TLS sockets. Remove the call to sk_tx_queue_clear() in sk_set_socket(), and add it explicitly only where needed. Fixes: e022f0b4a03f ("net: Introduce sk_tx_queue_mapping") Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Boris Pismenny <borisp@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23net: ethtool: Handle missing cable test TDR parametersAndrew Lunn1-8/+9
A last minute change put the TDR cable test parameters into a nest. The validation is not sufficient, resulting in an oops if the nest is missing. Set default values first, then update them if the nest is provided. Fixes: f2bc8ad31a7f ("net: ethtool: Allow PHY cable test TDR data to configured") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23net: ethtool: add missing string for NETIF_F_GSO_TUNNEL_REMCSUMAlexander Lobakin1-0/+1
Commit e585f2363637 ("udp: Changes to udp_offload to support remote checksum offload") added new GSO type and a corresponding netdev feature, but missed Ethtool's 'netdev_features_strings' table. Give it a name so it will be exposed to userspace and become available for manual configuration. v3: - decouple from "netdev_features_strings[] cleanup" series; - no functional changes. v2: - don't split the "Fixes:" tag across lines; - no functional changes. Fixes: e585f2363637 ("udp: Changes to udp_offload to support remote checksum offload") Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-23bridge: mrp: Validate when setting the port roleHoratiu Vultur1-2/+8
This patch adds specific checks for primary(0x0) and secondary(0x1) when setting the port role. For any other value the function 'br_mrp_set_port_role' will return -EINVAL. Fixes: 20f6a05ef63594 ("bridge: mrp: Rework the MRP netlink interface") Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22mptcp: drop sndr_key in mptcp_syn_optionsGeliang Tang1-2/+0
In RFC 8684, we don't need to send sndr_key in SYN package anymore, so drop it. Fixes: cc7972ea1932 ("mptcp: parse and emit MP_CAPABLE option according to v1 spec") Signed-off-by: Geliang Tang <geliangtang@gmail.com> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22ethtool: Fix check in ethtool_rx_flow_rule_createGaurav Singh1-1/+1
Fix check in ethtool_rx_flow_rule_create Fixes: eca4205f9ec3 ("ethtool: add ethtool_rx_flow_spec to flow_rule structure translator") Signed-off-by: Gaurav Singh <gaurav1086@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22hsr: avoid to create proc file after unregisterTaehee Yoo4-24/+25
When an interface is being deleted, "/proc/net/dev_snmp6/<interface name>" is deleted. The function for this is addrconf_ifdown() in the addrconf_notify() and it is called by notification, which is NETDEV_UNREGISTER. But, if NETDEV_CHANGEMTU is triggered after NETDEV_UNREGISTER, this proc file will be created again. This recreated proc file will be deleted by netdev_wati_allrefs(). Before netdev_wait_allrefs() is called, creating a new HSR interface routine can be executed and It tries to create a proc file but it will find an un-deleted proc file. At this point, it warns about it. To avoid this situation, it can use ->dellink() instead of ->ndo_uninit() to release resources because ->dellink() is called before NETDEV_UNREGISTER. So, a proc file will not be recreated. Test commands ip link add dummy0 type dummy ip link add dummy1 type dummy ip link set dummy0 mtu 1300 #SHELL1 while : do ip link add hsr0 type hsr slave1 dummy0 slave2 dummy1 done #SHELL2 while : do ip link del hsr0 done Splat looks like: [ 9888.980852][ T2752] proc_dir_entry 'dev_snmp6/hsr0' already registered [ 9888.981797][ C2] WARNING: CPU: 2 PID: 2752 at fs/proc/generic.c:372 proc_register+0x2d5/0x430 [ 9888.981798][ C2] Modules linked in: hsr dummy veth openvswitch nsh nf_conncount nf_nat nf_conntrack nf_defrag_ipv6x [ 9888.981814][ C2] CPU: 2 PID: 2752 Comm: ip Tainted: G W 5.8.0-rc1+ #616 [ 9888.981815][ C2] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 9888.981816][ C2] RIP: 0010:proc_register+0x2d5/0x430 [ 9888.981818][ C2] Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 65 01 00 00 49 8b b5 e0 00 00 00 48 89 ea 40 [ 9888.981819][ C2] RSP: 0018:ffff8880628dedf0 EFLAGS: 00010286 [ 9888.981821][ C2] RAX: dffffc0000000008 RBX: ffff888028c69170 RCX: ffffffffaae09a62 [ 9888.981822][ C2] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88806c9f75ac [ 9888.981823][ C2] RBP: ffff888028c693f4 R08: ffffed100d9401bd R09: ffffed100d9401bd [ 9888.981824][ C2] R10: ffffffffaddf406f R11: 0000000000000001 R12: ffff888028c69308 [ 9888.981825][ C2] R13: ffff8880663584c8 R14: dffffc0000000000 R15: ffffed100518d27e [ 9888.981827][ C2] FS: 00007f3876b3b0c0(0000) GS:ffff88806c800000(0000) knlGS:0000000000000000 [ 9888.981828][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9888.981829][ C2] CR2: 00007f387601a8c0 CR3: 000000004101a002 CR4: 00000000000606e0 [ 9888.981830][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 9888.981831][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 9888.981832][ C2] Call Trace: [ 9888.981833][ C2] ? snmp6_seq_show+0x180/0x180 [ 9888.981834][ C2] proc_create_single_data+0x7c/0xa0 [ 9888.981835][ C2] snmp6_register_dev+0xb0/0x130 [ 9888.981836][ C2] ipv6_add_dev+0x4b7/0xf60 [ 9888.981837][ C2] addrconf_notify+0x684/0x1ca0 [ 9888.981838][ C2] ? __mutex_unlock_slowpath+0xd0/0x670 [ 9888.981839][ C2] ? kasan_unpoison_shadow+0x30/0x40 [ 9888.981840][ C2] ? wait_for_completion+0x250/0x250 [ 9888.981841][ C2] ? inet6_ifinfo_notify+0x100/0x100 [ 9888.981842][ C2] ? dropmon_net_event+0x227/0x410 [ 9888.981843][ C2] ? notifier_call_chain+0x90/0x160 [ 9888.981844][ C2] ? inet6_ifinfo_notify+0x100/0x100 [ 9888.981845][ C2] notifier_call_chain+0x90/0x160 [ 9888.981846][ C2] register_netdevice+0xbe5/0x1070 [ ... ] Reported-by: syzbot+1d51c8b74efa4c44adeb@syzkaller.appspotmail.com Fixes: e0a4b99773d3 ("hsr: use upper/lower device infrastructure") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-22xprtrdma: Fix handling of RDMA_ERROR repliesChuck Lever1-6/+3
The RPC client currently doesn't handle ERR_CHUNK replies correctly. rpcrdma_complete_rqst() incorrectly passes a negative number to xprt_complete_rqst() as the number of bytes copied. Instead, set task->tk_status to the error value, and return zero bytes copied. In these cases, return -EIO rather than -EREMOTEIO. The RPC client's finite state machine doesn't know what to do with -EREMOTEIO. Additional clean ups: - Don't double-count RDMA_ERROR replies - Remove a stale comment Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: <stable@kernel.vger.org> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-06-22xprtrdma: Clean up disconnectChuck Lever2-10/+14
1. Ensure that only rpcrdma_cm_event_handler() modifies ep->re_connect_status to avoid racy changes to that field. 2. Ensure that xprt_force_disconnect() is invoked only once as a transport is closed or destroyed. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-06-22xprtrdma: Clean up synopsis of rpcrdma_flush_disconnect()Chuck Lever3-11/+11
Refactor: Pass struct rpcrdma_xprt instead of an IB layer object. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-06-22xprtrdma: Use re_connect_status safely in rpcrdma_xprt_connect()Chuck Lever2-4/+1
Clean up: Sometimes creating a fresh rpcrdma_ep can fail. That's why xprt_rdma_connect() always checks if the r_xprt->rx_ep pointer is valid before dereferencing it. Instead, xprt_rdma_connect() can simply check rpcrdma_xprt_connect()'s return value. Also, there's no need to set re_connect_status to zero just after the rpcrdma_ep is created, since it is allocated with kzalloc. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-06-22xprtrdma: Prevent dereferencing r_xprt->rx_ep after it is freedChuck Lever1-10/+23
r_xprt->rx_ep is known to be good while the transport's send lock is held. Otherwise additional references on rx_ep must be held when it is used outside of that lock's critical sections. For now, bump the rx_ep reference count once whenever there is at least one outstanding Receive WR. This avoids the memory bandwidth overhead of taking and releasing the reference count for every ib_post_recv() and Receive completion. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-06-20net: Add MODULE_DESCRIPTION entries to network modulesRob Gill10-0/+10
The user tool modinfo is used to get information on kernel modules, including a description where it is available. This patch adds a brief MODULE_DESCRIPTION to the following modules: 9p drop_monitor esp4_offload esp6_offload fou fou6 ila sch_fq sch_fq_codel sch_hhf Signed-off-by: Rob Gill <rrobgill@protonmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-20rxrpc: Fix notification call on completion of discarded callsDavid Howells1-0/+7
When preallocated service calls are being discarded, they're passed to ->discard_new_call() to have the caller clean up any attached higher-layer preallocated pieces before being marked completed. However, the act of marking them completed now invokes the call's notification function - which causes a problem because that function might assume that the previously freed pieces of memory are still there. Fix this by setting a dummy notification function on the socket after calling ->discard_new_call(). This results in the following kasan message when the kafs module is removed. ================================================================== BUG: KASAN: use-after-free in afs_wake_up_async_call+0x6aa/0x770 fs/afs/rxrpc.c:707 Write of size 1 at addr ffff8880946c39e4 by task kworker/u4:1/21 CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.8.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xd3/0x413 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530 afs_wake_up_async_call+0x6aa/0x770 fs/afs/rxrpc.c:707 rxrpc_notify_socket+0x1db/0x5d0 net/rxrpc/recvmsg.c:40 __rxrpc_set_call_completion.part.0+0x172/0x410 net/rxrpc/recvmsg.c:76 __rxrpc_call_completed net/rxrpc/recvmsg.c:112 [inline] rxrpc_call_completed+0xca/0xf0 net/rxrpc/recvmsg.c:111 rxrpc_discard_prealloc+0x781/0xab0 net/rxrpc/call_accept.c:233 rxrpc_listen+0x147/0x360 net/rxrpc/af_rxrpc.c:245 afs_close_socket+0x95/0x320 fs/afs/rxrpc.c:110 afs_net_exit+0x1bc/0x310 fs/afs/main.c:155 ops_exit_list.isra.0+0xa8/0x150 net/core/net_namespace.c:186 cleanup_net+0x511/0xa50 net/core/net_namespace.c:603 process_one_work+0x965/0x1690 kernel/workqueue.c:2269 worker_thread+0x96/0xe10 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 Allocated by task 6820: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc mm/kasan/common.c:494 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:467 kmem_cache_alloc_trace+0x153/0x7d0 mm/slab.c:3551 kmalloc include/linux/slab.h:555 [inline] kzalloc include/linux/slab.h:669 [inline] afs_alloc_call+0x55/0x630 fs/afs/rxrpc.c:141 afs_charge_preallocation+0xe9/0x2d0 fs/afs/rxrpc.c:757 afs_open_socket+0x292/0x360 fs/afs/rxrpc.c:92 afs_net_init+0xa6c/0xe30 fs/afs/main.c:125 ops_init+0xaf/0x420 net/core/net_namespace.c:151 setup_net+0x2de/0x860 net/core/net_namespace.c:341 copy_net_ns+0x293/0x590 net/core/net_namespace.c:482 create_new_namespaces+0x3fb/0xb30 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xbd/0x1f0 kernel/nsproxy.c:231 ksys_unshare+0x43d/0x8e0 kernel/fork.c:2983 __do_sys_unshare kernel/fork.c:3051 [inline] __se_sys_unshare kernel/fork.c:3049 [inline] __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3049 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 21: save_stack+0x1b/0x40 mm/kasan/common.c:48 set_track mm/kasan/common.c:56 [inline] kasan_set_free_info mm/kasan/common.c:316 [inline] __kasan_slab_free+0xf7/0x140 mm/kasan/common.c:455 __cache_free mm/slab.c:3426 [inline] kfree+0x109/0x2b0 mm/slab.c:3757 afs_put_call+0x585/0xa40 fs/afs/rxrpc.c:190 rxrpc_discard_prealloc+0x764/0xab0 net/rxrpc/call_accept.c:230 rxrpc_listen+0x147/0x360 net/rxrpc/af_rxrpc.c:245 afs_close_socket+0x95/0x320 fs/afs/rxrpc.c:110 afs_net_exit+0x1bc/0x310 fs/afs/main.c:155 ops_exit_list.isra.0+0xa8/0x150 net/core/net_namespace.c:186 cleanup_net+0x511/0xa50 net/core/net_namespace.c:603 process_one_work+0x965/0x1690 kernel/workqueue.c:2269 worker_thread+0x96/0xe10 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 The buggy address belongs to the object at ffff8880946c3800 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 484 bytes inside of 1024-byte region [ffff8880946c3800, ffff8880946c3c00) The buggy address belongs to the page: page:ffffea000251b0c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0xfffe0000000200(slab) raw: 00fffe0000000200 ffffea0002546508 ffffea00024fa248 ffff8880aa000c40 raw: 0000000000000000 ffff8880946c3000 0000000100000002 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880946c3880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880946c3900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880946c3980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880946c3a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880946c3a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== Reported-by: syzbot+d3eccef36ddbd02713e9@syzkaller.appspotmail.com Fixes: 5ac0d62226a0 ("rxrpc: Fix missing notification") Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19net/sched: cls_api: fix nooffloaddevcnt warning dmesg logwenxu1-10/+14
The block->nooffloaddevcnt should always count for indr block. even the indr block offload successful. The representor maybe gone away and the ingress qdisc can work in software mode. block->nooffloaddevcnt warning with following dmesg log: [ 760.667058] ##################################################### [ 760.668186] ## TEST test-ecmp-add-vxlan-encap-disable-sriov.sh ## [ 760.669179] ##################################################### [ 761.780655] :test: Fedora 30 (Thirty) [ 761.783794] :test: Linux reg-r-vrt-018-180 5.7.0+ [ 761.822890] :test: NIC ens1f0 FW 16.26.6000 PCI 0000:81:00.0 DEVICE 0x1019 ConnectX-5 Ex [ 761.860244] mlx5_core 0000:81:00.0 ens1f0: Link up [ 761.880693] IPv6: ADDRCONF(NETDEV_CHANGE): ens1f0: link becomes ready [ 762.059732] mlx5_core 0000:81:00.1 ens1f1: Link up [ 762.234341] :test: unbind vfs of ens1f0 [ 762.257825] :test: Change ens1f0 eswitch (0000:81:00.0) mode to switchdev [ 762.291363] :test: unbind vfs of ens1f1 [ 762.306914] :test: Change ens1f1 eswitch (0000:81:00.1) mode to switchdev [ 762.309237] mlx5_core 0000:81:00.1: E-Switch: Disable: mode(LEGACY), nvfs(2), active vports(3) [ 763.282598] mlx5_core 0000:81:00.1: E-Switch: Supported tc offload range - chains: 4294967294, prios: 4294967295 [ 763.362825] mlx5_core 0000:81:00.1: MLX5E: StrdRq(1) RqSz(8) StrdSz(2048) RxCqeCmprss(0) [ 763.444465] mlx5_core 0000:81:00.1 ens1f1: renamed from eth0 [ 763.460088] mlx5_core 0000:81:00.1: MLX5E: StrdRq(1) RqSz(8) StrdSz(2048) RxCqeCmprss(0) [ 763.502586] mlx5_core 0000:81:00.1: MLX5E: StrdRq(1) RqSz(8) StrdSz(2048) RxCqeCmprss(0) [ 763.552429] ens1f1_0: renamed from eth0 [ 763.569569] mlx5_core 0000:81:00.1: E-Switch: Enable: mode(OFFLOADS), nvfs(2), active vports(3) [ 763.629694] ens1f1_1: renamed from eth1 [ 764.631552] IPv6: ADDRCONF(NETDEV_CHANGE): ens1f1_0: link becomes ready [ 764.670841] :test: unbind vfs of ens1f0 [ 764.681966] :test: unbind vfs of ens1f1 [ 764.726762] mlx5_core 0000:81:00.0 ens1f0: Link up [ 764.766511] mlx5_core 0000:81:00.1 ens1f1: Link up [ 764.797325] :test: Add multipath vxlan encap rule and disable sriov [ 764.798544] :test: config multipath route [ 764.812732] mlx5_core 0000:81:00.0: lag map port 1:2 port 2:2 [ 764.874556] mlx5_core 0000:81:00.0: modify lag map port 1:1 port 2:2 [ 765.603681] :test: OK [ 765.659048] IPv6: ADDRCONF(NETDEV_CHANGE): ens1f1_1: link becomes ready [ 765.675085] :test: verify rule in hw [ 765.694237] IPv6: ADDRCONF(NETDEV_CHANGE): ens1f0: link becomes ready [ 765.711892] IPv6: ADDRCONF(NETDEV_CHANGE): ens1f1: link becomes ready [ 766.979230] :test: OK [ 768.125419] :test: OK [ 768.127519] :test: - disable sriov ens1f1 [ 768.131160] pci 0000:81:02.2: Removing from iommu group 75 [ 768.132646] pci 0000:81:02.3: Removing from iommu group 76 [ 769.179749] mlx5_core 0000:81:00.1: E-Switch: Disable: mode(OFFLOADS), nvfs(2), active vports(3) [ 769.455627] mlx5_core 0000:81:00.0: modify lag map port 1:1 port 2:1 [ 769.703990] mlx5_core 0000:81:00.1: MLX5E: StrdRq(1) RqSz(8) StrdSz(2048) RxCqeCmprss(0) [ 769.988637] mlx5_core 0000:81:00.1 ens1f1: renamed from eth0 [ 769.990022] :test: - disable sriov ens1f0 [ 769.994922] pci 0000:81:00.2: Removing from iommu group 73 [ 769.997048] pci 0000:81:00.3: Removing from iommu group 74 [ 771.035813] mlx5_core 0000:81:00.0: E-Switch: Disable: mode(OFFLOADS), nvfs(2), active vports(3) [ 771.339091] ------------[ cut here ]------------ [ 771.340812] WARNING: CPU: 6 PID: 3448 at net/sched/cls_api.c:749 tcf_block_offload_unbind.isra.0+0x5c/0x60 [ 771.341728] Modules linked in: act_mirred act_tunnel_key cls_flower dummy vxlan ip6_udp_tunnel udp_tunnel sch_ingress nfsv3 nfs_acl nfs lockd grace fscache tun bridge stp llc sunrpc rdma_ucm rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core intel_rapl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp mlxfw act_ct nf_flow_table kvm_intel nf_nat kvm nf_conntrack irqbypass crct10dif_pclmul igb crc32_pclmul nf_defrag_ipv6 libcrc32c nf_defrag_ipv4 crc32c_intel ghash_clmulni_intel ptp ipmi_ssif intel_cstate pps_c ore ses intel_uncore mei_me iTCO_wdt joydev ipmi_si iTCO_vendor_support i2c_i801 enclosure mei ioatdma dca lpc_ich wmi ipmi_devintf pcspkr acpi_power_meter ipmi_msghandler acpi_pad ast i2c_algo_bit drm_vram_helper drm_kms_helper drm_ttm_helper ttm drm mpt3sas raid_class scsi_transport_sas [ 771.347818] CPU: 6 PID: 3448 Comm: test-ecmp-add-v Not tainted 5.7.0+ #1146 [ 771.348727] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017 [ 771.349646] RIP: 0010:tcf_block_offload_unbind.isra.0+0x5c/0x60 [ 771.350553] Code: 4a fd ff ff 83 f8 a1 74 0e 5b 4c 89 e7 5d 41 5c 41 5d e9 07 93 89 ff 8b 83 a0 00 00 00 8d 50 ff 89 93 a0 00 00 00 85 c0 75 df <0f> 0b eb db 0f 1f 44 00 00 41 57 41 56 41 55 41 89 cd 41 54 49 89 [ 771.352420] RSP: 0018:ffffb33144cd3b00 EFLAGS: 00010246 [ 771.353353] RAX: 0000000000000000 RBX: ffff8b37cf4b2800 RCX: 0000000000000000 [ 771.354294] RDX: 00000000ffffffff RSI: ffff8b3b9aad0000 RDI: ffffffff8d5c6e20 [ 771.355245] RBP: ffff8b37eb546948 R08: ffffffffc0b7a348 R09: ffff8b3b9aad0000 [ 771.356189] R10: 0000000000000001 R11: ffff8b3ba7a0a1c0 R12: ffff8b37cf4b2850 [ 771.357123] R13: ffff8b3b9aad0000 R14: ffff8b37cf4b2820 R15: ffff8b37cf4b2820 [ 771.358039] FS: 00007f8a19b6e740(0000) GS:ffff8b3befa00000(0000) knlGS:0000000000000000 [ 771.358965] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 771.359885] CR2: 00007f3afb91c1a0 CR3: 000000045133c004 CR4: 00000000001606e0 [ 771.360825] Call Trace: [ 771.361764] __tcf_block_put+0x84/0x150 [ 771.362712] ingress_destroy+0x1b/0x20 [sch_ingress] [ 771.363658] qdisc_destroy+0x3e/0xc0 [ 771.364594] dev_shutdown+0x7a/0xa5 [ 771.365522] rollback_registered_many+0x20d/0x530 [ 771.366458] ? netdev_upper_dev_unlink+0x15d/0x1c0 [ 771.367387] unregister_netdevice_many.part.0+0xf/0x70 [ 771.368310] vxlan_netdevice_event+0xa4/0x110 [vxlan] [ 771.369454] notifier_call_chain+0x4c/0x70 [ 771.370579] rollback_registered_many+0x2f5/0x530 [ 771.371719] rollback_registered+0x56/0x90 [ 771.372843] unregister_netdevice_queue+0x73/0xb0 [ 771.373982] unregister_netdev+0x18/0x20 [ 771.375168] mlx5e_vport_rep_unload+0x56/0xc0 [mlx5_core] [ 771.376327] esw_offloads_disable+0x81/0x90 [mlx5_core] [ 771.377512] mlx5_eswitch_disable_locked.cold+0xcb/0x1af [mlx5_core] [ 771.378679] mlx5_eswitch_disable+0x44/0x60 [mlx5_core] [ 771.379822] mlx5_device_disable_sriov+0xad/0xb0 [mlx5_core] [ 771.380968] mlx5_core_sriov_configure+0xc1/0xe0 [mlx5_core] [ 771.382087] sriov_numvfs_store+0xfc/0x130 [ 771.383195] kernfs_fop_write+0xce/0x1b0 [ 771.384302] vfs_write+0xb6/0x1a0 [ 771.385410] ksys_write+0x5f/0xe0 [ 771.386500] do_syscall_64+0x5b/0x1d0 [ 771.387569] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: 0fdcf78d5973 ("net: use flow_indr_dev_setup_offload()") Signed-off-by: wenxu <wenxu@ucloud.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19net: flow_offload: fix flow_indr_dev_unregister pathwenxu4-6/+13
If the representor is removed, then identify the indirect flow_blocks that need to be removed by the release callback and the port representor structure. To identify the port representor structure, a new indr.cb_priv field needs to be introduced. The flow_block also needs to be removed from the driver list from the cleanup path. Fixes: 1fac52da5942 ("net: flow_offload: consolidate indirect flow_block infrastructure") Signed-off-by: wenxu <wenxu@ucloud.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19flow_offload: use flow_indr_block_cb_alloc/remove functionwenxu1-21/+1
Prepare fix the bug in the next patch. use flow_indr_block_cb_alloc/remove function and remove the __flow_block_indr_binding. Signed-off-by: wenxu <wenxu@ucloud.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19flow_offload: add flow_indr_block_cb_alloc/remove functionwenxu1-0/+21
Add flow_indr_block_cb_alloc/remove function for next fix patch. Signed-off-by: wenxu <wenxu@ucloud.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19Merge tag 'rxrpc-fixes-20200618' of ↵David S. Miller2-5/+4
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs David Howells says: ==================== rxrpc: Performance drop fix and other fixes Here are three fixes for rxrpc: (1) Fix a trace symbol mapping. It doesn't seem to let you map to "". (2) Fix the handling of the remote receive window size when it increases beyond the size we can support for our transmit window. (3) Fix a performance drop caused by retransmitted packets being accidentally marked as already ACK'd. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19Merge branch 'master' of ↵David S. Miller5-37/+63
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2020-06-19 1) Fix double ESP trailer insertion in IPsec crypto offload if netif_xmit_frozen_or_stopped is true. From Huy Nguyen. 2) Merge fixup for "remove output_finish indirection from xfrm_state_afinfo". From Stephen Rothwell. 3) Select CRYPTO_SEQIV for ESP as this is needed for GCM and several other encryption algorithms. Also modernize the crypto algorithm selections for ESP and AH, remove those that are maked as "MUST NOT" and add those that are marked as "MUST" be implemented in RFC 8221. From Eric Biggers. Please note the merge conflict between commit: a7f7f6248d97 ("treewide: replace '---help---' in Kconfig files with 'help'") from Linus' tree and commits: 7d4e39195925 ("esp, ah: consolidate the crypto algorithm selections") be01369859b8 ("esp, ah: modernize the crypto algorithm selections") from the ipsec tree. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19Merge tag 'ceph-for-5.8-rc2' of git://github.com/ceph/ceph-clientLinus Torvalds2-13/+10
Pull ceph fixes from Ilya Dryomov: "An important follow-up for replica reads support that went into -rc1 and two target_copy() fixups" * tag 'ceph-for-5.8-rc2' of git://github.com/ceph/ceph-client: libceph: don't omit used_replica in target_copy() libceph: don't omit recovery_deletes in target_copy() libceph: move away from global osd_req_flags
2020-06-18net: increment xmit_recursion level in dev_direct_xmit()Eric Dumazet2-1/+3
Back in commit f60e5990d9c1 ("ipv6: protect skb->sk accesses from recursive dereference inside the stack") Hannes added code so that IPv6 stack would not trust skb->sk for typical cases where packet goes through 'standard' xmit path (__dev_queue_xmit()) Alas af_packet had a dev_direct_xmit() path that was not dealing yet with xmit_recursion level. Also change sk_mc_loop() to dump a stack once only. Without this patch, syzbot was able to trigger : [1] [ 153.567378] WARNING: CPU: 7 PID: 11273 at net/core/sock.c:721 sk_mc_loop+0x51/0x70 [ 153.567378] Modules linked in: nfnetlink ip6table_raw ip6table_filter iptable_raw iptable_nat nf_nat nf_conntrack nf_defrag_ipv4 nf_defrag_ipv6 iptable_filter macsec macvtap tap macvlan 8021q hsr wireguard libblake2s blake2s_x86_64 libblake2s_generic udp_tunnel ip6_udp_tunnel libchacha20poly1305 poly1305_x86_64 chacha_x86_64 libchacha curve25519_x86_64 libcurve25519_generic netdevsim batman_adv dummy team bridge stp llc w1_therm wire i2c_mux_pca954x i2c_mux cdc_acm ehci_pci ehci_hcd mlx4_en mlx4_ib ib_uverbs ib_core mlx4_core [ 153.567386] CPU: 7 PID: 11273 Comm: b159172088 Not tainted 5.8.0-smp-DEV #273 [ 153.567387] RIP: 0010:sk_mc_loop+0x51/0x70 [ 153.567388] Code: 66 83 f8 0a 75 24 0f b6 4f 12 b8 01 00 00 00 31 d2 d3 e0 a9 bf ef ff ff 74 07 48 8b 97 f0 02 00 00 0f b6 42 3a 83 e0 01 5d c3 <0f> 0b b8 01 00 00 00 5d c3 0f b6 87 18 03 00 00 5d c0 e8 04 83 e0 [ 153.567388] RSP: 0018:ffff95c69bb93990 EFLAGS: 00010212 [ 153.567388] RAX: 0000000000000011 RBX: ffff95c6e0ee3e00 RCX: 0000000000000007 [ 153.567389] RDX: ffff95c69ae50000 RSI: ffff95c6c30c3000 RDI: ffff95c6c30c3000 [ 153.567389] RBP: ffff95c69bb93990 R08: ffff95c69a77f000 R09: 0000000000000008 [ 153.567389] R10: 0000000000000040 R11: 00003e0e00026128 R12: ffff95c6c30c3000 [ 153.567390] R13: ffff95c6cc4fd500 R14: ffff95c6f84500c0 R15: ffff95c69aa13c00 [ 153.567390] FS: 00007fdc3a283700(0000) GS:ffff95c6ff9c0000(0000) knlGS:0000000000000000 [ 153.567390] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 153.567391] CR2: 00007ffee758e890 CR3: 0000001f9ba20003 CR4: 00000000001606e0 [ 153.567391] Call Trace: [ 153.567391] ip6_finish_output2+0x34e/0x550 [ 153.567391] __ip6_finish_output+0xe7/0x110 [ 153.567391] ip6_finish_output+0x2d/0xb0 [ 153.567392] ip6_output+0x77/0x120 [ 153.567392] ? __ip6_finish_output+0x110/0x110 [ 153.567392] ip6_local_out+0x3d/0x50 [ 153.567392] ipvlan_queue_xmit+0x56c/0x5e0 [ 153.567393] ? ksize+0x19/0x30 [ 153.567393] ipvlan_start_xmit+0x18/0x50 [ 153.567393] dev_direct_xmit+0xf3/0x1c0 [ 153.567393] packet_direct_xmit+0x69/0xa0 [ 153.567394] packet_sendmsg+0xbf0/0x19b0 [ 153.567394] ? plist_del+0x62/0xb0 [ 153.567394] sock_sendmsg+0x65/0x70 [ 153.567394] sock_write_iter+0x93/0xf0 [ 153.567394] new_sync_write+0x18e/0x1a0 [ 153.567395] __vfs_write+0x29/0x40 [ 153.567395] vfs_write+0xb9/0x1b0 [ 153.567395] ksys_write+0xb1/0xe0 [ 153.567395] __x64_sys_write+0x1a/0x20 [ 153.567395] do_syscall_64+0x43/0x70 [ 153.567396] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 153.567396] RIP: 0033:0x453549 [ 153.567396] Code: Bad RIP value. [ 153.567396] RSP: 002b:00007fdc3a282cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 153.567397] RAX: ffffffffffffffda RBX: 00000000004d32d0 RCX: 0000000000453549 [ 153.567397] RDX: 0000000000000020 RSI: 0000000020000300 RDI: 0000000000000003 [ 153.567398] RBP: 00000000004d32d8 R08: 0000000000000000 R09: 0000000000000000 [ 153.567398] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004d32dc [ 153.567398] R13: 00007ffee742260f R14: 00007fdc3a282dc0 R15: 00007fdc3a283700 [ 153.567399] ---[ end trace c1d5ae2b1059ec62 ]--- f60e5990d9c1 ("ipv6: protect skb->sk accesses from recursive dereference inside the stack") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18net: ethtool: add missing NETIF_F_GSO_FRAGLIST feature stringAlexander Lobakin1-0/+1
Commit 3b33583265ed ("net: Add fraglist GRO/GSO feature flags") missed an entry for NETIF_F_GSO_FRAGLIST in netdev_features_strings array. As a result, fraglist GSO feature is not shown in 'ethtool -k' output and can't be toggled on/off. The fix is trivial. Fixes: 3b33583265ed ("net: Add fraglist GRO/GSO feature flags") Signed-off-by: Alexander Lobakin <alobakin@pm.me> Reviewed-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18mptcp: drop MP_JOIN request sock on syn cookiesPaolo Abeni1-8/+10
Currently any MPTCP socket using syn cookies will fallback to TCP at 3rd ack time. In case of MP_JOIN requests, the RFC mandate closing the child and sockets, but the existing error paths do not handle the syncookie scenario correctly. Address the issue always forcing the child shutdown in case of MP_JOIN fallback. Fixes: ae2dd7164943 ("mptcp: handle tcp fallback when using syn cookies") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18mptcp: cache msk on MP_JOIN init_reqPaolo Abeni2-22/+18
The msk ownership is transferred to the child socket at 3rd ack time, so that we avoid more lookups later. If the request does not reach the 3rd ack, the MSK reference is dropped at request sock release time. As a side effect, fallback is now tracked by a NULL msk reference instead of zeroed 'mp_join' field. This will simplify the next patch. Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18net: Fix the arp error in some casesguodeqing1-1/+1
ie., $ ifconfig eth0 6.6.6.6 netmask 255.255.255.0 $ ip rule add from 6.6.6.6 table 6666 $ ip route add 9.9.9.9 via 6.6.6.6 $ ping -I 6.6.6.6 9.9.9.9 PING 9.9.9.9 (9.9.9.9) from 6.6.6.6 : 56(84) bytes of data. 3 packets transmitted, 0 received, 100% packet loss, time 2079ms $ arp Address HWtype HWaddress Flags Mask Iface 6.6.6.6 (incomplete) eth0 The arp request address is error, this is because fib_table_lookup in fib_check_nh lookup the destnation 9.9.9.9 nexthop, the scope of the fib result is RT_SCOPE_LINK,the correct scope is RT_SCOPE_HOST. Here I add a check of whether this is RT_TABLE_MAIN to solve this problem. Fixes: 3bfd847203c6 ("net: Use passed in table for nexthop lookups") Signed-off-by: guodeqing <geffrey.guo@huawei.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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