- 20 Jul, 2020 4 commits
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Zhang Changzhong authored
The driver forgets to call clk_disable_unprepare() in error path after a success calling for clk_prepare_enable(). Fix to goto err_clk_disable if clk_prepare_enable() is successful. Fixes: 99d55638 ("net: bcmgenet: enable NETIF_F_HIGHDMA flag") Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com> Acked-by: Doug Berger <opendmb@gmail.com> Acked-by: Florian fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Taehee Yoo authored
If register_netdevice() is failed, net_device should not be used because variables are uninitialized or freed. So, the routine should be stopped immediately. But, bond_create() doesn't check return value of register_netdevice() immediately. That will result in a panic because of using uninitialized or freed memory. Test commands: modprobe netdev-notifier-error-inject echo -22 > /sys/kernel/debug/notifier-error-inject/netdev/\ actions/NETDEV_REGISTER/error modprobe bonding max_bonds=3 Splat looks like: [ 375.028492][ T193] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] SMP DEBUG_PAGEALLOC PTI [ 375.033207][ T193] CPU: 2 PID: 193 Comm: kworker/2:2 Not tainted 5.8.0-rc4+ #645 [ 375.036068][ T193] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014 [ 375.039673][ T193] Workqueue: events linkwatch_event [ 375.041557][ T193] RIP: 0010:dev_activate+0x4a/0x340 [ 375.043381][ T193] Code: 40 a8 04 0f 85 db 00 00 00 8b 83 08 04 00 00 85 c0 0f 84 0d 01 00 00 31 d2 89 d0 48 8d 04 40 48 c1 e0 07 48 03 83 00 04 00 00 <48> 8b 48 10 f6 41 10 01 75 08 f0 80 a1 a0 01 00 00 fd 48 89 48 08 [ 375.050267][ T193] RSP: 0018:ffff9f8facfcfdd8 EFLAGS: 00010202 [ 375.052410][ T193] RAX: 6b6b6b6b6b6b6b6b RBX: ffff9f8fae6ea000 RCX: 0000000000000006 [ 375.055178][ T193] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff9f8fae6ea000 [ 375.057762][ T193] RBP: ffff9f8fae6ea000 R08: 0000000000000000 R09: 0000000000000000 [ 375.059810][ T193] R10: 0000000000000001 R11: 0000000000000000 R12: ffff9f8facfcfe08 [ 375.061892][ T193] R13: ffffffff883587e0 R14: 0000000000000000 R15: ffff9f8fae6ea580 [ 375.063931][ T193] FS: 0000000000000000(0000) GS:ffff9f8fbae00000(0000) knlGS:0000000000000000 [ 375.066239][ T193] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 375.067841][ T193] CR2: 00007f2f542167a0 CR3: 000000012cee6002 CR4: 00000000003606e0 [ 375.069657][ T193] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 375.071471][ T193] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 375.073269][ T193] Call Trace: [ 375.074005][ T193] linkwatch_do_dev+0x4d/0x50 [ 375.075052][ T193] __linkwatch_run_queue+0x10b/0x200 [ 375.076244][ T193] linkwatch_event+0x21/0x30 [ 375.077274][ T193] process_one_work+0x252/0x600 [ 375.078379][ T193] ? process_one_work+0x600/0x600 [ 375.079518][ T193] worker_thread+0x3c/0x380 [ 375.080534][ T193] ? process_one_work+0x600/0x600 [ 375.081668][ T193] kthread+0x139/0x150 [ 375.082567][ T193] ? kthread_park+0x90/0x90 [ 375.083567][ T193] ret_from_fork+0x22/0x30 Fixes: e826eafa ("bonding: Call netif_carrier_off after register_netdevice") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Russell King authored
The commit below caused a regression for clearfog-gt-8k, where the link between the switch and the host does not come up. Investigation revealed two issues: - MV88E6xxx DSA no longer allows an in-band link to come up as the link is programmed to be forced down. Commit "net: dsa: mv88e6xxx: fix in-band AN link establishment" addresses this. - The dts configured dissimilar link modes at each end of the host to switch link; the host was configured using a fixed link (so has no in-band status) and the switch was configured to expect in-band status. With both issues fixed, the regression is resolved. Fixes: 34b5e6a3 ("net: dsa: mv88e6xxx: Configure MAC when using fixed link") Reported-by: Martin Rowe <martin.p.rowe@gmail.com> 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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Russell King authored
If in-band negotiation or fixed-link modes are specified for a DSA port, the DSA code will force the link down during initialisation. For fixed-link mode, this is fine, as phylink will manage the link state. However, for in-band mode, phylink expects the PCS to detect link, which will not happen if the link is forced down. There is a related issue that in in-band mode, the link could come up while we are making configuration changes, so we should force the link down prior to reconfiguring the interface mode. This patch addresses both issues. Fixes: 3be98b2d ("net: dsa: Down cpu/dsa ports phylink will control") 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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- 19 Jul, 2020 11 commits
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David S. Miller authored
Karsten Graul says: ==================== net/smc: fixes 2020-07-16 Please apply the following patch series for smc to netdev's net tree. The patches address problems caused by late or unexpected link layer control packets, dma sync calls for unmapped memory, freed buffers that are not removed from the buffer list and a possible null pointer access that results in a crash. v1->v2: in patch 4, improve patch description and correct the comment for the new mutex ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
When a listen socket is closed then all non-accepted sockets in its accept queue are to be released. Inside __smc_release() the helper smc_restore_fallback_changes() restores the changes done to the socket without to check if the clcsocket has a file set. This can result in a crash. Fix this by checking the file pointer first. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: f536dffc ("net/smc: fix closing of fallback SMC sockets") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
Two buffers are allocated for each SMC connection. Each buffer is added to a buffer list after creation. When the second buffer allocation fails, the first buffer is freed but not deleted from the list. This might result in crashes when another connection picks up the freed buffer later and starts to work with it. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: 6511aad3 ("net/smc: change smc_buf_free function parameters") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
The dma related ...sync_sg... functions check the link state before the dma function is actually called. But the check in smc_link_usable() allows links in ACTIVATING state which are not yet mapped to dma memory. Under high load it may happen that the sync_sg functions are called for such a link which results in an debug output like DMA-API: mlx5_core 0002:00:00.0: device driver tries to sync DMA memory it has not allocated [device address=0x0000000103370000] [size=65536 bytes] To fix that introduce a helper to check for the link state ACTIVE and use it where appropriate. And move the link state update to ACTIVATING to the end of smcr_link_init() when most initial setup is done. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: d854fcbf ("net/smc: add new link state and related helpers") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
As smc client the delete link requests are assigned to the flow when _any_ flow is active. This may break other flows that do not expect delete link requests during their handling. Fix that by assigning the request only when an add link flow is active. With that fix the code for smc client and smc server is the same, so remove the separate handling. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: 9ec6bf19 ("net/smc: llc_del_link_work and use the LLC flow for delete link") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
When a new ib device is up smc will send an add link invitation to the peer if needed. This is currently done with rudimentary flow control. Under high workload these add link invitations can disturb other llc flows because they arrive unexpected. Fix this by integrating the invitations into the normal llc event flow and handle them as a flow. While at it, check for already assigned requests in the flow before the new add link request is assigned. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: 1f90a05d ("net/smc: add smcr_port_add() and smcr_link_up() processing") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
To be save from unexpected or late llc response messages check if the arrived message fits to the current flow type and drop out-of-flow messages. And drop it when there is already a response assigned to the flow. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: ef79d439 ("net/smc: process llc responses in tasklet context") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
Before an smc ib device is used the first time for an smc link it is lazily initialized. When there are 2 active link groups and a new ib device is brought online then it might happen that 2 link creations run in parallel and enter smc_ib_setup_per_ibdev(). Both allocate new send and receive completion queues on the device, but only one set of them keeps assigned and the other leaks. Fix that by protecting the setup and cleanup code using a mutex. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: f3c1dedd ("net/smc: separate function for link initialization") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
For new rdma connections the SMC server assigns the link and sends the link data in the clc accept message. To match the correct link use not only the qp_num but also the gid and the mac of the links. If there are equal qp_nums for different links the wrong link would be chosen. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: 0fb0b02b ("net/smc: adapt SMC client code to use the LLC flow") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
In a link-down condition we notify the SMC server and expect that the server will finally trigger the link clear processing on the client side. This could fail when anything along this notification path goes wrong. Clear the link as part of SMC client link-down processing to prevent dangling links. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: 541afa10 ("net/smc: add smcr_port_err() and smcr_link_down() processing") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karsten Graul authored
A delete link could arrive during confirm link processing. Handle this situation directly in smc_llc_srv_conf_link() rather than using the logic in smc_llc_wait() to avoid the unexpected message handling there. Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Fixes: 1551c95b ("net/smc: final part of add link processing as SMC server") Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 18 Jul, 2020 6 commits
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Vadim Pasternak authored
Fix wrong reading of upper pages for SFP EEPROM. According to "Memory Organization" figure in SFF-8472 spec: When reading upper pages 1, 2 and 3 the offset should be set relative to zero and I2C high address 0x51 [1010001X (A2h)] is to be used. Fixes: a45bfb5a ("mlxsw: core: Extend QSFP EEPROM size for ethtool") Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Reviewed-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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Murali Karicheri authored
Validate MAC address before copying the same to outgoing frame skb destination address. Since a node can have zero mac address for Link B until a valid frame is received over that link, this fix address the issue of a zero MAC address being in the packet. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Murali Karicheri authored
For small Ethernet frames with size less than minimum size 66 for HSR vs 60 for regular Ethernet frames, hsr driver currently doesn't pad the frame to make it minimum size. This results in incorrect LSDU size being populated in the HSR tag for these frames. Fix this by padding the frame to the minimum size applicable for HSR. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Randy Dunlap authored
Drop the doubled word "be" in a comment. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Thomas Graf <tgraf@suug.ch> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexandre Belloni authored
There is one RGMII check not using the phy_interface_mode_is_rgmii() helper. This prevents the driver from configuring the MAC properly when using a phy-mode that is not just rgmii, e.g. rgmii-rxid. This became an issue on sama5d3 xplained since the ksz9031 driver is hadling phy-mode properly and the phy-mode has to be set to rgmii-rxid. Fixes: bcf3440c ("net: phy: micrel: add phy-mode support for the KSZ9031 PHY") Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nikita Danilov authored
This patch disables PTP on AQC111 and AQC112 due to a known HW issue, which can cause datapath issues. Ideally PTP block should have been disabled via PHY provisioning, but unfortunately many units have been shipped with enabled PTP block. Thus, we have to work around this in the driver. Fixes: dbcd6806 ("net: aquantia: add support for Phy access") Signed-off-by: Nikita Danilov <ndanilov@marvell.com> Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 17 Jul, 2020 9 commits
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Wang Hai authored
When nfc_register_device fails in nci_register_device, destroy_workqueue() shouled be called to destroy ndev->tx_wq. Fixes: 3c1c0f5d ("NFC: NCI: Fix nci_register_device init sequence") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Hai <wanghai38@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Doug Berger says: ==================== net: bcmgenet: fix WAKE_FILTER resume from deep sleep The WAKE_FILTER logic can only wake the system from the standby power state. However, some systems that include the GENET IP support deeper power saving states and the driver should suspend and resume correctly from those states as well. This commit set squashes a few issues uncovered while testing suspend and resume from these deep sleep states. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Doug Berger authored
The Hardware Filter Block RAM may not be preserved when the GENET block is reset during a deep sleep, so it is not sufficient to only backup and restore the enables. This commit clears out the HFB block and reprograms the rxnfc rules when the system resumes from a suspended state. To support this the bcmgenet_hfb_create_rxnfc_filter() function is modified to access the register space directly so that it can't fail due to memory allocation issues. Fixes: f50932cc ("net: bcmgenet: add WAKE_FILTER support") Signed-off-by: Doug Berger <opendmb@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Doug Berger authored
When the GENET driver resumes from deep sleep the UMAC_CMD register may not be accessible and therefore should not be accessed from bcmgenet_wol_power_up_cfg() if the GENET has been reset. This commit adds a check of the RBUF_ACPI_EN flag when Wake on Filter is enabled. A clear flag indicates that the GENET hardware must have been reset so the remainder of the hardware programming is bypassed. Fixes: f50932cc ("net: bcmgenet: add WAKE_FILTER support") Signed-off-by: Doug Berger <opendmb@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Doug Berger authored
When the GENET driver resumes from deep sleep the UMAC_CMD register may not be accessible and therefore should not be accessed from bcmgenet_wol_power_up_cfg() if the GENET has been reset. This commit adds a check of the MPD_EN flag when Wake on Magic Packet is enabled. A clear flag indicates that the GENET hardware must have been reset so the remainder of the hardware programming is bypassed. Fixes: 1a1d5106 ("net: bcmgenet: move clk_wol management to bcmgenet_wol") Signed-off-by: Doug Berger <opendmb@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Paolo Pisati authored
Fix ip_defrag.sh when CONFIG_NF_DEFRAG_IPV6=m: $ sudo ./ip_defrag.sh + set -e + mktemp -u XXXXXX + readonly NETNS=ns-rGlXcw + trap cleanup EXIT + setup + ip netns add ns-rGlXcw + ip -netns ns-rGlXcw link set lo up + ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_high_thresh=9000000 + ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_low_thresh=7000000 + ip netns exec ns-rGlXcw sysctl -w net.ipv4.ipfrag_time=1 + ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_high_thresh=9000000 + ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_low_thresh=7000000 + ip netns exec ns-rGlXcw sysctl -w net.ipv6.ip6frag_time=1 + ip netns exec ns-rGlXcw sysctl -w net.netfilter.nf_conntrack_frag6_high_thresh=9000000 + cleanup + ip netns del ns-rGlXcw $ ls -la /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh ls: cannot access '/proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh': No such file or directory $ sudo modprobe nf_defrag_ipv6 $ ls -la /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh -rw-r--r-- 1 root root 0 Jul 14 12:34 /proc/sys/net/netfilter/nf_conntrack_frag6_high_thresh Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Wang Hai authored
If try_toggle_control_gpio() failed in smc_drv_probe(), free_netdev(ndev) should be called to free the ndev created earlier. Otherwise, a memleak will occur. Fixes: 7d2911c4 ("net: smc91x: Fix gpios for device tree based booting") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Wang Hai <wanghai38@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Weilong Chen authored
When vlan_newlink call register_vlan_dev fails, it might return error with dev->reg_state = NETREG_UNREGISTERED. The rtnl_newlink should free the memory. But currently rtnl_newlink only free the memory which state is NETREG_UNINITIALIZED. BUG: memory leak unreferenced object 0xffff8881051de000 (size 4096): comm "syz-executor139", pid 560, jiffies 4294745346 (age 32.445s) hex dump (first 32 bytes): 76 6c 61 6e 32 00 00 00 00 00 00 00 00 00 00 00 vlan2........... 00 45 28 03 81 88 ff ff 00 00 00 00 00 00 00 00 .E(............. backtrace: [<0000000047527e31>] kmalloc_node include/linux/slab.h:578 [inline] [<0000000047527e31>] kvmalloc_node+0x33/0xd0 mm/util.c:574 [<000000002b59e3bc>] kvmalloc include/linux/mm.h:753 [inline] [<000000002b59e3bc>] kvzalloc include/linux/mm.h:761 [inline] [<000000002b59e3bc>] alloc_netdev_mqs+0x83/0xd90 net/core/dev.c:9929 [<000000006076752a>] rtnl_create_link+0x2c0/0xa20 net/core/rtnetlink.c:3067 [<00000000572b3be5>] __rtnl_newlink+0xc9c/0x1330 net/core/rtnetlink.c:3329 [<00000000e84ea553>] rtnl_newlink+0x66/0x90 net/core/rtnetlink.c:3397 [<0000000052c7c0a9>] rtnetlink_rcv_msg+0x540/0x990 net/core/rtnetlink.c:5460 [<000000004b5cb379>] netlink_rcv_skb+0x12b/0x3a0 net/netlink/af_netlink.c:2469 [<00000000c71c20d3>] netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] [<00000000c71c20d3>] netlink_unicast+0x4c6/0x690 net/netlink/af_netlink.c:1329 [<00000000cca72fa9>] netlink_sendmsg+0x735/0xcc0 net/netlink/af_netlink.c:1918 [<000000009221ebf7>] sock_sendmsg_nosec net/socket.c:652 [inline] [<000000009221ebf7>] sock_sendmsg+0x109/0x140 net/socket.c:672 [<000000001c30ffe4>] ____sys_sendmsg+0x5f5/0x780 net/socket.c:2352 [<00000000b71ca6f3>] ___sys_sendmsg+0x11d/0x1a0 net/socket.c:2406 [<0000000007297384>] __sys_sendmsg+0xeb/0x1b0 net/socket.c:2439 [<000000000eb29b11>] do_syscall_64+0x56/0xa0 arch/x86/entry/common.c:359 [<000000006839b4d0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: cb626bf5 ("net-sysfs: Fix reference count leak") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Weilong Chen <chenweilong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Min Li authored
Add below to “Ancillary clock features” section - Low Pass Filter (LPF) access from user space Add below to list of “Supported hardware” section + Renesas (IDT) ClockMatrix
™ Signed-off-by: Min Li <min.li.xe@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 16 Jul, 2020 5 commits
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Sergey Organov authored
From Documentation/networking/timestamping.txt: A driver which supports hardware time stamping shall update the struct with the actual, possibly more permissive configuration. Do update the struct passed when we upscale the requested time stamping mode. Fixes: cb646e2b ("ptp: Added a clock driver for the National Semiconductor PHYTER.") Signed-off-by: Sergey Organov <sorganov@gmail.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Sergey Organov authored
Fix support for external PTP-aware devices such as DSA or PTP PHY: Make sure we never time stamp tx packets when hardware time stamping is disabled. Check for PTP PHY being in use and then pass ioctls related to time stamping of Ethernet packets to the PTP PHY rather than handle them ourselves. In addition, disable our own hardware time stamping in this case. Fixes: 6605b730 ("FEC: Add time stamping code and a PTP hardware clock") Signed-off-by: Sergey Organov <sorganov@gmail.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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George Kennedy authored
If ax88172a_unbind() fails, make sure that the return code is less than zero so that cleanup is done properly and avoid UAF. Fixes: a9a51bd7 ("ax88172a: fix information leak on short answers") Signed-off-by: George Kennedy <george.kennedy@oracle.com> Reported-by: syzbot+4cd84f527bf4a10fc9c1@syzkaller.appspotmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Stefano Garzarella authored
Commit 0deab087 ("vsock/virtio: use RCU to avoid use-after-free on the_virtio_vsock") starts to use RCU to protect 'the_virtio_vsock' pointer, but we forgot to annotate it. This patch adds the annotation to fix the following sparse errors: net/vmw_vsock/virtio_transport.c:73:17: error: incompatible types in comparison expression (different address spaces): net/vmw_vsock/virtio_transport.c:73:17: struct virtio_vsock [noderef] __rcu * net/vmw_vsock/virtio_transport.c:73:17: struct virtio_vsock * net/vmw_vsock/virtio_transport.c:171:17: error: incompatible types in comparison expression (different address spaces): net/vmw_vsock/virtio_transport.c:171:17: struct virtio_vsock [noderef] __rcu * net/vmw_vsock/virtio_transport.c:171:17: struct virtio_vsock * net/vmw_vsock/virtio_transport.c:207:17: error: incompatible types in comparison expression (different address spaces): net/vmw_vsock/virtio_transport.c:207:17: struct virtio_vsock [noderef] __rcu * net/vmw_vsock/virtio_transport.c:207:17: struct virtio_vsock * net/vmw_vsock/virtio_transport.c:561:13: error: incompatible types in comparison expression (different address spaces): net/vmw_vsock/virtio_transport.c:561:13: struct virtio_vsock [noderef] __rcu * net/vmw_vsock/virtio_transport.c:561:13: struct virtio_vsock * net/vmw_vsock/virtio_transport.c:612:9: error: incompatible types in comparison expression (different address spaces): net/vmw_vsock/virtio_transport.c:612:9: struct virtio_vsock [noderef] __rcu * net/vmw_vsock/virtio_transport.c:612:9: struct virtio_vsock * net/vmw_vsock/virtio_transport.c:631:9: error: incompatible types in comparison expression (different address spaces): net/vmw_vsock/virtio_transport.c:631:9: struct virtio_vsock [noderef] __rcu * net/vmw_vsock/virtio_transport.c:631:9: struct virtio_vsock * Fixes: 0deab087 ("vsock/virtio: use RCU to avoid use-after-free on the_virtio_vsock") Reported-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Ioana Ciornei authored
The fsl_mc_get_endpoint() function can return an error or directly a NULL pointer in case the peer device is not under the root DPRC container. Treat this case also, otherwise it would lead to a NULL pointer when trying to access the peer fsl_mc_device. Fixes: 71947923 ("dpaa2-eth: add MAC/PHY support through phylink") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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- 14 Jul, 2020 5 commits
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Laurence Oberman authored
This is likely firmware causing this but its starting to annoy customers. Change the message level to verbose to prevent the spam. Note that this seems to only show up with ISCSI enabled on the HBA via the qedi driver. Signed-off-by: Laurence Oberman <loberman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Paolo Pisati authored
During setup(): ... for ns in h0 r1 h1 h2 h3 do create_ns ${ns} done ... while in cleanup(): ... for n in h1 r1 h2 h3 h4 do ip netns del ${n} 2>/dev/null done ... and after removing the stderr redirection in cleanup(): $ sudo ./fib_nexthop_multiprefix.sh ... TEST: IPv4: host 0 to host 3, mtu 1400 [ OK ] TEST: IPv6: host 0 to host 3, mtu 1400 [ OK ] Cannot remove namespace file "/run/netns/h4": No such file or directory $ echo $? 1 and a non-zero return code, make kselftests fail (even if the test itself is fine): ... not ok 34 selftests: net: fib_nexthop_multiprefix.sh # exit=1 ... Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com> Reviewed-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Maxim Kochetkov authored
If there is no valid MAC address in the device tree, use a random MAC address. Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
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Christophe JAILLET authored
The size used when calling 'pci_alloc_consistent()' and 'pci_free_consistent()' should match. Fix it and have it consistent with the corresponding call in 'rr_close()'. Fixes: 1da177e4 ("Linux-2.6.12-rc2") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Merge tag 'wireless-drivers-2020-07-13' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers Kalle Valo says: ==================== wireless-drivers fixes for v5.8 First set of fixes for v5.8. Various important fixes for iwlwifi and mt76. iwlwifi * fix sleeping under RCU * fix a kernel crash when using compressed firmware images mt76 * tx queueing fixes for mt7615/22/63 * locking fix * fix a crash during watchdog reset * fix memory leaks ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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