- 05 Jun, 2019 6 commits
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Alexandra Winter authored
Enabling sysfs attribute bridge_hostnotify triggers a series of udev events for the MAC addresses of all currently connected peers. In case no VLAN is set for a peer, the device reports the corresponding MAC addresses with VLAN ID 4096. This currently results in attribute VLAN=4096 for all non-VLAN interfaces in the initial series of events after host-notify is enabled. Instead, no VLAN attribute should be reported in the udev event for non-VLAN interfaces. Only the initial events face this issue. For dynamic changes that are reported later, the device uses a validity flag. This also changes the code so that it now sets the VLAN attribute for MAC addresses with VID 0. On Linux, no qeth interface will ever be registered with VID 0: Linux kernel registers VID 0 on all network interfaces initially, but qeth will drop .ndo_vlan_rx_add_vid for VID 0. Peers with other OSs could register MACs with VID 0. Fixes: 9f48b9db ("qeth: bridgeport support - address notifications") Signed-off-by:
Alexandra Winter <wintera@linux.ibm.com> Signed-off-by:
Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Julian Wiedmann authored
While qeth_l3 uses netif_keep_dst() to hold onto the dst, a skb's dst may still have been obsoleted (via dst_dev_put()) by the time that we end up using it. The dst then points to the loopback interface, which means the neighbour lookup in qeth_l3_get_cast_type() determines a bogus cast type of RTN_BROADCAST. For IQD interfaces this causes us to place such skbs on the wrong HW queue, resulting in TX errors. Fix-up the various call sites to first validate the dst entry with dst_check(), and fall back accordingly. Signed-off-by:
Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Julian Wiedmann authored
When selecting the cast type of a neighbourless IPv4 skb (eg. on a raw socket), qeth_l3 falls back to the packet's destination IP address. For this case we should classify traffic sent to 255.255.255.255 as broadcast. This fixes DHCP requests, which were misclassified as unicast (and for IQD interfaces thus ended up on the wrong HW queue). Signed-off-by:
Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Paolo Abeni authored
As Eric noted, the current wrapper for ptype func hook inside __netif_receive_skb_list_ptype() has no chance of avoiding the indirect call: we enter such code path only for protocols other than ipv4 and ipv6. Instead we can wrap the list_func invocation. v1 -> v2: - use the correct fix tag Fixes: f5737cba ("net: use indirect calls helpers for ptype hook") Suggested-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Acked-by:
Edward Cree <ecree@solarflare.com> Reviewed-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Miaohe Lin authored
There's some NICs, such as hinic, with NETIF_F_IP_CSUM and NETIF_F_TSO on but NETIF_F_HW_CSUM off. And ipvlan device features will be NETIF_F_TSO on with NETIF_F_IP_CSUM and NETIF_F_IP_CSUM both off as IPVLAN_FEATURES only care about NETIF_F_HW_CSUM. So TSO will be disabled in netdev_fix_features. For example: Features for enp129s0f0: rx-checksumming: on tx-checksumming: on tx-checksum-ipv4: on tx-checksum-ip-generic: off [fixed] tx-checksum-ipv6: on Fixes: a188222b ("net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK") Signed-off-by:
Miaohe Lin <linmiaohe@huawei.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Tim Beale authored
By default, packets received in another VRF should not be passed to an unbound socket in the default VRF. This patch updates the IPv4 UDP multicast logic to match the unicast VRF logic (in compute_score()), as well as the IPv6 mcast logic (in __udp_v6_is_mcast_sock()). The particular case I noticed was DHCP discover packets going to the 255.255.255.255 address, which are handled by __udp4_lib_mcast_deliver(). The previous code meant that running multiple different DHCP server or relay agent instances across VRFs did not work correctly - any server/relay agent in the default VRF received DHCP discover packets for all other VRFs. Fixes: 6da5b0f0 ("net: ensure unbound datagram socket to be chosen when not in a VRF") Signed-off-by:
Tim Beale <timbeale@catalyst.net.nz> Reviewed-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 04 Jun, 2019 5 commits
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David S. Miller authored
Jakub Kicinski says: ==================== net/tls: redo the RX resync locking Take two of making sure we don't use a NULL netdev pointer for RX resync. This time using a bit and an open coded wait loop. v2: - fix build warning (DaveM). ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jakub Kicinski authored
Commit 38030d7c ("net/tls: avoid NULL-deref on resync during device removal") tried to fix a potential NULL-dereference by taking the context rwsem. Unfortunately the RX resync may get called from soft IRQ, so we can't use the rwsem to protect from the device disappearing. Because we are guaranteed there can be only one resync at a time (it's called from strparser) use a bit to indicate resync is busy and make device removal wait for the bit to get cleared. Note that there is a leftover "flags" field in struct tls_context already. Fixes: 4799ac81 ("tls: Add rx inline crypto offload") Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jakub Kicinski authored
This reverts commit 38030d7c. Unfortunately the RX resync may get called from soft IRQ, so we can't take the rwsem to protect from the device disappearing. Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Vladimir Oltean authored
The hardware values for link speed are held in the sja1105_speed_t enum. However they do not increase in the order that sja1105_get_speed_cfg was iterating over them (basically from SJA1105_SPEED_AUTO - 0 - to SJA1105_SPEED_1000MBPS - 1 - skipping the other two). Another bug is that the code in sja1105_adjust_port_config relies on the fact that an invalid link speed is detected by sja1105_get_speed_cfg and returned as -EINVAL. However storing this into an enum that only has positive members will cast it into an unsigned value, and it will miss the negative check. So take the simplest approach and remove the sja1105_get_speed_cfg function and replace it with a simple switch-case statement. Fixes: 8aa9ebcc ("net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch") Signed-off-by:
Vladimir Oltean <olteanv@gmail.com> Suggested-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Russell King authored
Avoid reducing the support mask as a result of the interface type selected for SFP modules, or when setting the link settings through ethtool - this should only change when the supported link modes of the hardware combination change. Signed-off-by:
Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 03 Jun, 2019 6 commits
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Russell King authored
Some SFP modules do not like reads longer than 16 bytes, so read the EEPROM in chunks of 16 bytes at a time. This behaviour is not specified in the SFP MSAs, which specifies: "The serial interface uses the 2-wire serial CMOS E2PROM protocol defined for the ATMEL AT24C01A/02/04 family of components." and "As long as the SFP+ receives an acknowledge, it shall serially clock out sequential data words. The sequence is terminated when the host responds with a NACK and a STOP instead of an acknowledge." We must avoid breaking a read across a 16-bit quantity in the diagnostic page, thankfully all 16-bit quantities in that page are naturally aligned. Signed-off-by:
Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Xin Long authored
sysctl setting bc_forwarding for $rp2 is needed when ping_test_from h2, otherwise the bc packets from $rp2 won't be forwarded. This patch is to add this setting for $rp2. Also, as ping_test_from does grep "$from" only, which could match some unexpected output, some test case doesn't really work, like: # ping_test_from $h2 198.51.200.255 198.51.200.2 PING 198.51.200.255 from 198.51.100.2 veth3: 56(84) bytes of data. 64 bytes from 198.51.100.1: icmp_seq=1 ttl=64 time=0.336 ms When doing grep $form (198.51.200.2), the output could still match. So change to grep "bytes from $from" instead. Fixes: 40f98b9a ("selftests: add a selftest for directed broadcast forwarding") Signed-off-by:
Xin Long <lucien.xin@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Sean Wang authored
Should only enable HW RX_2BYTE_OFFSET function in the case NET_IP_ALIGN equals to 2. Signed-off-by:
Mark Lee <mark-mc.lee@mediatek.com> Signed-off-by:
Sean Wang <sean.wang@mediatek.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Sean Wang authored
Should hw_feature as hardware capability flags to check if hardware LRO got support. Signed-off-by:
Mark Lee <mark-mc.lee@mediatek.com> Signed-off-by:
Sean Wang <sean.wang@mediatek.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ivan Khoronzhuk authored
Fix ability to set RX descriptor number, the reason - initially "tx_max_pending" was set incorrectly, but the issue appears after adding sanity check, so fix is for "sanity" patch. Fixes: 37e2d99b ("ethtool: Ensure new ring parameters are within bounds during SRINGPARAM") Signed-off-by:
Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Reviewed-by:
Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Willem de Bruijn authored
Rollover used to use a complex RCU mechanism for assignment, which had a race condition. The below patch fixed the bug and greatly simplified the logic. The feature depends on fanout, but the state is private to the socket. Fanout_release returns f only when the last member leaves and the fanout struct is to be freed. Destroy rollover unconditionally, regardless of fanout state. Fixes: 57f015f5 ("packet: fix crash in fanout_demux_rollover()") Reported-by:
syzbot <syzkaller@googlegroups.com> Diagnosed-by:
Dmitry Vyukov <dvyukov@google.com> Signed-off-by:
Willem de Bruijn <willemb@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 02 Jun, 2019 3 commits
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Wei Liu authored
Signed-off-by:
Wei Liu <wei.liu2@citrix.com> Acked-by:
Paul Durrant <paul.durrant@citrix.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Yonglong Liu authored
When doing a loopback test at copper ports, the serdes loopback and the phy loopback will fail, because of the adjust link had not finished, and phy not ready. Adds sleep between adjust link and test process to fix it. Signed-off-by:
Yonglong Liu <liuyonglong@huawei.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Nikita Yushchenko authored
When non-bridged, non-vlan'ed mv88e6xxx port is moving down, error message is logged: failed to kill vid 0081/0 for device eth_cu_1000_4 This is caused by call from __vlan_vid_del() with vin set to zero, over call chain this results into _mv88e6xxx_port_vlan_del() called with vid=0, and mv88e6xxx_vtu_get() called from there returns -EINVAL. On symmetric path moving port up, call goes through mv88e6xxx_port_vlan_prepare() that calls mv88e6xxx_port_check_hw_vlan() that returns -EOPNOTSUPP for zero vid. This patch changes mv88e6xxx_vtu_get() to also return -EOPNOTSUPP for zero vid, then this error code is explicitly cleared in dsa_slave_vlan_rx_kill_vid() and error message is no longer logged. Signed-off-by:
Nikita Yushchenko <nikita.yoush@cogentembedded.com> Reviewed-by:
Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 31 May, 2019 6 commits
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Vladimir Oltean authored
Due to a confusion I thought that eth_type_trans() was called by the network stack whereas it can actually be called by network drivers to figure out the skb protocol and next packet_type handlers. In light of the above, it is not safe to store the frame type from the DSA tagger's .filter callback (first entry point on RX path), since GRO is yet to be invoked on the received traffic. Hence it is very likely that the skb->cb will actually get overwritten between eth_type_trans() and the actual DSA packet_type handler. Of course, what this patch fixes is the actual overwriting of the SJA1105_SKB_CB(skb)->type field from the GRO layer, which made all frames be seen as SJA1105_FRAME_TYPE_NORMAL (0). Fixes: 227d07a0 ("net: dsa: sja1105: Add support for traffic through standalone ports") Signed-off-by:
Vladimir Oltean <olteanv@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Fix OOPS during nf_tables rule dump, from Florian Westphal. 2) Use after free in ip_vs_in, from Yue Haibing. 3) Fix various kTLS bugs (NULL deref during device removal resync, netdev notification ignoring, etc.) From Jakub Kicinski. 4) Fix ipv6 redirects with VRF, from David Ahern. 5) Memory leak fix in igmpv3_del_delrec(), from Eric Dumazet. 6) Missing memory allocation failure check in ip6_ra_control(), from Gen Zhang. And likewise fix ip_ra_control(). 7) TX clean budget logic error in aquantia, from Igor Russkikh. 8) SKB leak in llc_build_and_send_ui_pkt(), from Eric Dumazet. 9) Double frees in mlx5, from Parav Pandit. 10) Fix lost MAC address in r8169 during PCI D3, from Heiner Kallweit. 11) Fix botched register access in mvpp2, from Antoine Tenart. 12) Use after free in napi_gro_frags(), from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (89 commits) net: correct zerocopy refcnt with udp MSG_MORE ethtool: Check for vlan etype or vlan tci when parsing flow_rule net: don't clear sock->sk early to avoid trouble in strparser net-gro: fix use-after-free read in napi_gro_frags() net: dsa: tag_8021q: Create a stable binary format net: dsa: tag_8021q: Change order of rx_vid setup net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value ipv4: tcp_input: fix stack out of bounds when parsing TCP options. mlxsw: spectrum: Prevent force of 56G mlxsw: spectrum_acl: Avoid warning after identical rules insertion net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT r8169: fix MAC address being lost in PCI D3 net: core: support XDP generic on stacked devices. netvsc: unshare skb in VF rx handler udp: Avoid post-GRO UDP checksum recalculation net: phy: dp83867: Set up RGMII TX delay net: phy: dp83867: do not call config_init twice net: phy: dp83867: increase SGMII autoneg timer duration net: phy: dp83867: fix speed 10 in sgmii mode net: phy: marvell10g: report if the PHY fails to boot firmware ...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Will Deacon: "The fixes are still trickling in for arm64, but the only really significant one here is actually fixing a regression in the botched module relocation range checking merged for -rc2. Hopefully we've nailed it this time. - Fix implementation of our set_personality() system call, which wasn't being wrapped properly - Fix system call function types to keep CFI happy - Fix siginfo layout when delivering SIGKILL after a kernel fault - Really fix module relocation range checking" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: use the correct function type for __arm64_sys_ni_syscall arm64: use the correct function type in SYSCALL_DEFINE0 arm64: fix syscall_fn_t type signal/arm64: Use force_sig not force_sig_fault for SIGKILL arm64/module: revert to unsigned interpretation of ABS16/32 relocations arm64: Fix the arm64_personality() syscall wrapper redirection
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs fixes from David Sterba: "A few more fixes for bugs reported by users, fuzzing tools and regressions: - fix crashes in relocation: + resuming interrupted balance operation does not properly clean up orphan trees + with enabled qgroups, resuming needs to be more careful about block groups due to limited context when updating qgroups - fsync and logging fixes found by fuzzing - incremental send fixes for no-holes and clone - fix spin lock type used in timer function for zstd" * tag 'for-5.2-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: Btrfs: fix race updating log root item during fsync Btrfs: fix wrong ctime and mtime of a directory after log replay Btrfs: fix fsync not persisting changed attributes of a directory btrfs: qgroup: Check bg while resuming relocation to avoid NULL pointer dereference btrfs: reloc: Also queue orphan reloc tree for cleanup to avoid BUG_ON() Btrfs: incremental send, fix emission of invalid clone operations Btrfs: incremental send, fix file corruption when no-holes feature is enabled btrfs: correct zstd workspace manager lock to use spin_lock_bh() btrfs: Ensure replaced device doesn't have pending chunk allocation
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git://git.infradead.org/users/hch/configfsLinus Torvalds authored
Pull configs fix from Christoph Hellwig: - fix a use after free in configfs_d_iput (Sahitya Tummala) * tag 'configfs-for-5.2-2' of git://git.infradead.org/users/hch/configfs: configfs: Fix use-after-free when accessing sd->s_dentry
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "No big surprises here, just a few device-specific fixes. HD-audio received several fixes for Acer, Dell, Huawei and other laptops as well as the workaround for the new Intel chipset. One significant one-liner fix is the disablement of the node-power saving on Realtek codecs, which may potentially cover annoying bugs like the background noises or click noises on many devices. Other than that, a fix for FireWire bit definitions, and another fix for LINE6 USB audio bug that was discovered by syzkaller" * tag 'sound-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: fireface: Use ULL suffixes for 64-bit constants ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops ALSA: line6: Assure canceling delayed work at disconnection ALSA: hda - Force polling mode on CNL for fixing codec communication ALSA: hda/realtek - Enable micmute LED for Huawei laptops ALSA: hda/realtek - Set default power save node to 0 ALSA: hda/realtek - Check headset type by unplug and resume
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- 30 May, 2019 14 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk driver fixes from Stephen Boyd: - Don't expose the SiFive clk driver on non-RISCV architectures - Fix some bits describing clks in the imx8mm driver - Always call clk domain code in the TI driver so non-legacy platforms work * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: ti: clkctrl: Fix clkdm_clk handling clk: imx: imx8mm: fix int pll clk gate clk: sifive: restrict Kconfig scope for the FU540 PRCI driver
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Willem de Bruijn authored
TCP zerocopy takes a uarg reference for every skb, plus one for the tcp_sendmsg_locked datapath temporarily, to avoid reaching refcnt zero as it builds, sends and frees skbs inside its inner loop. UDP and RAW zerocopy do not send inside the inner loop so do not need the extra sock_zerocopy_get + sock_zerocopy_put pair. Commit 52900d22288ed ("udp: elide zerocopy operation in hot path") introduced extra_uref to pass the initial reference taken in sock_zerocopy_alloc to the first generated skb. But, sock_zerocopy_realloc takes this extra reference at the start of every call. With MSG_MORE, no new skb may be generated to attach the extra_uref to, so refcnt is incorrectly 2 with only one skb. Do not take the extra ref if uarg && !tcp, which implies MSG_MORE. Update extra_uref accordingly. This conditional assignment triggers a false positive may be used uninitialized warning, so have to initialize extra_uref at define. Changes v1->v2: fix typo in Fixes SHA1 Fixes: 52900d22 ("udp: elide zerocopy operation in hot path") Reported-by:
syzbot <syzkaller@googlegroups.com> Diagnosed-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
Willem de Bruijn <willemb@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Maxime Chevallier authored
When parsing an ethtool flow spec to build a flow_rule, the code checks if both the vlan etype and the vlan tci are specified by the user to add a FLOW_DISSECTOR_KEY_VLAN match. However, when the user only specified a vlan etype or a vlan tci, this check silently ignores these parameters. For example, the following rule : ethtool -N eth0 flow-type udp4 vlan 0x0010 action -1 loc 0 will result in no error being issued, but the equivalent rule will be created and passed to the NIC driver : ethtool -N eth0 flow-type udp4 action -1 loc 0 In the end, neither the NIC driver using the rule nor the end user have a way to know that these keys were dropped along the way, or that incorrect parameters were entered. This kind of check should be left to either the driver, or the ethtool flow spec layer. This commit makes so that ethtool parameters are forwarded as-is to the NIC driver. Since none of the users of ethtool_rx_flow_rule_create are using the VLAN dissector, I don't think this qualifies as a regression. Fixes: eca4205f ("ethtool: add ethtool_rx_flow_spec to flow_rule structure translator") Signed-off-by:
Maxime Chevallier <maxime.chevallier@bootlin.com> Acked-by:
Pablo Neira Ayuso <pablo@gnumonks.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jakub Kicinski authored
af_inet sets sock->sk to NULL which trips strparser over: BUG: kernel NULL pointer dereference, address: 0000000000000012 PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 7 PID: 0 Comm: swapper/7 Not tainted 5.2.0-rc1-00139-g14629453a6d3 #21 RIP: 0010:tcp_peek_len+0x10/0x60 RSP: 0018:ffffc02e41c54b98 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff9cf924c4e030 RCX: 0000000000000051 RDX: 0000000000000000 RSI: 000000000000000c RDI: ffff9cf97128f480 RBP: ffff9cf9365e0300 R08: ffff9cf94fe7d2c0 R09: 0000000000000000 R10: 000000000000036b R11: ffff9cf939735e00 R12: ffff9cf91ad9ae40 R13: ffff9cf924c4e000 R14: ffff9cf9a8fcbaae R15: 0000000000000020 FS: 0000000000000000(0000) GS:ffff9cf9af7c0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000012 CR3: 000000013920a003 CR4: 00000000003606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> strp_data_ready+0x48/0x90 tls_data_ready+0x22/0xd0 [tls] tcp_rcv_established+0x569/0x620 tcp_v4_do_rcv+0x127/0x1e0 tcp_v4_rcv+0xad7/0xbf0 ip_protocol_deliver_rcu+0x2c/0x1c0 ip_local_deliver_finish+0x41/0x50 ip_local_deliver+0x6b/0xe0 ? ip_protocol_deliver_rcu+0x1c0/0x1c0 ip_rcv+0x52/0xd0 ? ip_rcv_finish_core.isra.20+0x380/0x380 __netif_receive_skb_one_core+0x7e/0x90 netif_receive_skb_internal+0x42/0xf0 napi_gro_receive+0xed/0x150 nfp_net_poll+0x7a2/0xd30 [nfp] ? kmem_cache_free_bulk+0x286/0x310 net_rx_action+0x149/0x3b0 __do_softirq+0xe3/0x30a ? handle_irq_event_percpu+0x6a/0x80 irq_exit+0xe8/0xf0 do_IRQ+0x85/0xd0 common_interrupt+0xf/0xf </IRQ> RIP: 0010:cpuidle_enter_state+0xbc/0x450 To avoid this issue set sock->sk after sk_prot->close. My grepping and testing did not discover any code which would depend on the current behaviour. Fixes: c46234eb ("tls: RX path for ktls") Reported-by:
David Beckett <david.beckett@netronome.com> Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by:
Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
If a network driver provides to napi_gro_frags() an skb with a page fragment of exactly 14 bytes, the call to gro_pull_from_frag0() will 'consume' the fragment by calling skb_frag_unref(skb, 0), and the page might be freed and reused. Reading eth->h_proto at the end of napi_frags_skb() might read mangled data, or crash under specific debugging features. BUG: KASAN: use-after-free in napi_frags_skb net/core/dev.c:5833 [inline] BUG: KASAN: use-after-free in napi_gro_frags+0xc6f/0xd10 net/core/dev.c:5841 Read of size 2 at addr ffff88809366840c by task syz-executor599/8957 CPU: 1 PID: 8957 Comm: syz-executor599 Not tainted 5.2.0-rc1+ #32 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:188 __kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317 kasan_report+0x12/0x20 mm/kasan/common.c:614 __asan_report_load_n_noabort+0xf/0x20 mm/kasan/generic_report.c:142 napi_frags_skb net/core/dev.c:5833 [inline] napi_gro_frags+0xc6f/0xd10 net/core/dev.c:5841 tun_get_user+0x2f3c/0x3ff0 drivers/net/tun.c:1991 tun_chr_write_iter+0xbd/0x156 drivers/net/tun.c:2037 call_write_iter include/linux/fs.h:1872 [inline] do_iter_readv_writev+0x5f8/0x8f0 fs/read_write.c:693 do_iter_write fs/read_write.c:970 [inline] do_iter_write+0x184/0x610 fs/read_write.c:951 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1015 do_writev+0x15b/0x330 fs/read_write.c:1058 Fixes: a50e233c ("net-gro: restore frag0 optimization") Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by:
syzbot <syzkaller@googlegroups.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Vladimir Oltean says: ==================== Fixes for DSA tagging using 802.1Q During the prototyping for the "Decoupling PHYLINK from struct net_device" patchset, the CPU port of the sja1105 driver was moved to a different spot. This uncovered an issue in the tag_8021q DSA code, which used to work by mistake - the CPU port was the last hardware port numerically, and this was masking an ordering issue which is very likely to be seen in other drivers that make use of 802.1Q tags. A question was also raised whether the VID numbers bear any meaning, and the conclusion was that they don't, at least not in an absolute sense. The second patch defines bit fields inside the DSA 802.1Q VID so that tcpdump can decode it unambiguously (although the meaning is now clear even by visual inspection). ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Vladimir Oltean authored
Tools like tcpdump need to be able to decode the significance of fake VLAN headers that DSA uses to separate switch ports. But currently these have no global significance - they are simply an ordered list of DSA_MAX_SWITCHES x DSA_MAX_PORTS numbers ending at 4095. The reason why this is submitted as a fix is that the existing mapping of VIDs should not enter into a stable kernel, so we can pretend that only the new format exists. This way tcpdump won't need to try to make something out of the VLAN tags on 5.2 kernels. Fixes: f9bbe447 ("net: dsa: Optional VLAN-based port separation for switches without tagging") Signed-off-by:
Vladimir Oltean <olteanv@gmail.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Ioana Ciornei authored
The 802.1Q tagging performs an unbalanced setup in terms of RX VIDs on the CPU port. For the ingress path of a 802.1Q switch to work, the RX VID of a port needs to be seen as tagged egress on the CPU port. While configuring the other front-panel ports to be part of this VID, for bridge scenarios, the untagged flag is applied even on the CPU port in dsa_switch_vlan_add. This happens because DSA applies the same flags on the CPU port as on the (bridge-controlled) slave ports, and the effect in this case is that the CPU port tagged settings get deleted. Instead of fixing DSA by introducing a way to control VLAN flags on the CPU port (and hence stop inheriting from the slave ports) - a hard, perhaps intractable problem - avoid this situation by moving the setup part of the RX VID on the CPU port after all the other front-panel ports have been added to the VID. Fixes: f9bbe447 ("net: dsa: Optional VLAN-based port separation for switches without tagging") Signed-off-by:
Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by:
Vladimir Oltean <olteanv@gmail.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Antoine Tenart authored
MVPP2_TXQ_SCHED_TOKEN_CNTR_REG() expects the logical queue id but the current code is passing the global tx queue offset, so it ends up writing to unknown registers (between 0x8280 and 0x82fc, which seemed to be unused by the hardware). This fixes the issue by using the logical queue id instead. Fixes: 3f518509 ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by:
Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Young Xiao authored
The TCP option parsing routines in tcp_parse_options function could read one byte out of the buffer of the TCP options. 1 while (length > 0) { 2 int opcode = *ptr++; 3 int opsize; 4 5 switch (opcode) { 6 case TCPOPT_EOL: 7 return; 8 case TCPOPT_NOP: /* Ref: RFC 793 section 3.1 */ 9 length--; 10 continue; 11 default: 12 opsize = *ptr++; //out of bound access If length = 1, then there is an access in line2. And another access is occurred in line 12. This would lead to out-of-bound access. Therefore, in the patch we check that the available data length is larger enough to pase both TCP option code and size. Signed-off-by:
Young Xiao <92siuyang@gmail.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Ido Schimmel says: ==================== mlxsw: Two small fixes Patch #1 from Jiri fixes an issue specific to Spectrum-2 where the insertion of two identical flower filters with different priorities would trigger a warning. Patch #2 from Amit prevents the driver from trying to configure a port with a speed of 56Gb/s and autoneg off as this is not supported and results in error messages from firmware. Please consider patch #1 for stable. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Amit Cohen authored
Force of 56G is not supported by hardware in Ethernet devices. This configuration fails with a bad parameter error from firmware. Add check of this case. Instead of trying to set 56G with autoneg off, return a meaningful error. Fixes: 56ade8fe ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by:
Amit Cohen <amitc@mellanox.com> Acked-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Jiri Pirko authored
When identical rules are inserted, the latter one goes to C-TCAM. For that, a second eRP with the same mask is created. These 2 eRPs by the nature cannot be merged and also one cannot be parent of another. Teach mlxsw_sp_acl_erp_delta_fill() about this possibility and handle it gracefully. Reported-by:
Alex Kushnarov <alexanderk@mellanox.com> Fixes: c22291f7 ("mlxsw: spectrum: acl: Implement delta for ERP") Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Rasmus Villemoes authored
Currently, the upper half of a 4-byte STATS_TYPE_PORT statistic ends up in bits 47:32 of the return value, instead of bits 31:16 as they should. Fixes: 6e46e2d8 ("net: dsa: mv88e6xxx: Fix u64 statistics") Signed-off-by:
Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by:
Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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