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2018-09-21net: if_arp: use define instead of hard-coded valueHåkon Bugge
uapi/linux/if_arp.h includes linux/netdevice.h, which uses IFNAMSIZ. Hence, use it instead of hard-coded value. Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: if_arp: Fix incorrect indentsHåkon Bugge
Fixing incorrect indents and align comments. Signed-off-by: Håkon Bugge <haakon.bugge@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net/mlx4: Use cpumask_available for eq->affinity_maskNathan Chancellor
Clang warns that the address of a pointer will always evaluated as true in a boolean context: drivers/net/ethernet/mellanox/mlx4/eq.c:243:11: warning: address of array 'eq->affinity_mask' will always evaluate to 'true' [-Wpointer-bool-conversion] if (!eq->affinity_mask || cpumask_empty(eq->affinity_mask)) ~~~~~^~~~~~~~~~~~~ 1 warning generated. Use cpumask_available, introduced in commit f7e30f01a9e2 ("cpumask: Add helper cpumask_available()"), which does the proper checking and avoids this warning. Link: https://github.com/ClangBuiltLinux/linux/issues/86 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21devlink: double free in devlink_resource_fill()Dan Carpenter
Smatch reports that devlink_dpipe_send_and_alloc_skb() frees the skb on error so this is a double free. We fixed a bunch of these bugs in commit 7fe4d6dcbcb4 ("devlink: Remove redundant free on error path") but we accidentally overlooked this one. Fixes: d9f9b9a4d05f ("devlink: Add support for resource abstraction") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net/tls: Add support for async encryption of records for performanceVakul Garg
In current implementation, tls records are encrypted & transmitted serially. Till the time the previously submitted user data is encrypted, the implementation waits and on finish starts transmitting the record. This approach of encrypt-one record at a time is inefficient when asynchronous crypto accelerators are used. For each record, there are overheads of interrupts, driver softIRQ scheduling etc. Also the crypto accelerator sits idle most of time while an encrypted record's pages are handed over to tcp stack for transmission. This patch enables encryption of multiple records in parallel when an async capable crypto accelerator is present in system. This is achieved by allowing the user space application to send more data using sendmsg() even while previously issued data is being processed by crypto accelerator. This requires returning the control back to user space application after submitting encryption request to accelerator. This also means that zero-copy mode of encryption cannot be used with async accelerator as we must be done with user space application buffer before returning from sendmsg(). There can be multiple records in flight to/from the accelerator. Each of the record is represented by 'struct tls_rec'. This is used to store the memory pages for the record. After the records are encrypted, they are added in a linked list called tx_ready_list which contains encrypted tls records sorted as per tls sequence number. The records from tx_ready_list are transmitted using a newly introduced function called tls_tx_records(). The tx_ready_list is polled for any record ready to be transmitted in sendmsg(), sendpage() after initiating encryption of new tls records. This achieves parallel encryption and transmission of records when async accelerator is present. There could be situation when crypto accelerator completes encryption later than polling of tx_ready_list by sendmsg()/sendpage(). Therefore we need a deferred work context to be able to transmit records from tx_ready_list. The deferred work context gets scheduled if applications are not sending much data through the socket. If the applications issue sendmsg()/sendpage() in quick succession, then the scheduling of tx_work_handler gets cancelled as the tx_ready_list would be polled from application's context itself. This saves scheduling overhead of deferred work. The patch also brings some side benefit. We are able to get rid of the concept of CLOSED record. This is because the records once closed are either encrypted and then placed into tx_ready_list or if encryption fails, the socket error is set. This simplifies the kernel tls sendpath. However since tls_device.c is still using macros, accessory functions for CLOSED records have been retained. Signed-off-by: Vakul Garg <vakul.garg@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: apple: fix return type of ndo_start_xmit functionYueHaibing
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: i825xx: fix return type of ndo_start_xmit functionYueHaibing
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: wiznet: fix return type of ndo_start_xmit functionYueHaibing
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: sgi: fix return type of ndo_start_xmit functionYueHaibing
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: cirrus: fix return type of ndo_start_xmit functionYueHaibing
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: seeq: fix return type of ndo_start_xmit functionYueHaibing
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21PCI: hv: Fix return value check in hv_pci_assign_slots()Wei Yongjun
In case of error, the function pci_create_slot() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Fixes: a15f2c08c708 ("PCI: hv: support reporting serial number as slot information") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: freescale: fix return type of ndo_start_xmit functionYueHaibing
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: micrel: fix return type of ndo_start_xmit functionYueHaibing
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, so make sure the implementation in this driver has returns 'netdev_tx_t' value, and change the function return type to netdev_tx_t. Found by coccinelle. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net/ipv6: Display all addresses in output of /proc/net/if_inet6Jeff Barnhill
The backend handling for /proc/net/if_inet6 in addrconf.c doesn't properly handle starting/stopping the iteration. The problem is that at some point during the iteration, an overflow is detected and the process is subsequently stopped. The item being shown via seq_printf() when the overflow occurs is not actually shown, though. When start() is subsequently called to resume iterating, it returns the next item, and thus the item that was being processed when the overflow occurred never gets printed. Alter the meaning of the private data member "offset". Currently, when it is not 0 (which only happens at the very beginning), "offset" represents the next hlist item to be printed. After this change, "offset" always represents the current item. This is also consistent with the private data member "bucket", which represents the current bucket, and also the use of "pos" as defined in seq_file.txt: The pos passed to start() will always be either zero, or the most recent pos used in the previous session. Signed-off-by: Jeff Barnhill <0xeffeff@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: phy: mdio-bcm-unimac: Allow configuring MDIO clock dividerFlorian Fainelli
Allow the configuration of the MDIO clock divider when the Device Tree contains 'clock-frequency' property (similar to I2C and SPI buses). Because the hardware may have lost its state during suspend/resume, re-apply the MDIO clock divider upon resumption. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: lan78xx: Avoid unnecessary self assignmentNathan Chancellor
Clang warns when a variable is assigned to itself. drivers/net/usb/lan78xx.c:940:11: warning: explicitly assigning value of variable of type 'u32' (aka 'unsigned int') to itself [-Wself-assign] offset = offset; ~~~~~~ ^ ~~~~~~ 1 warning generated. Reorder the if statement to acheive the same result and avoid a self assignment warning. Link: https://github.com/ClangBuiltLinux/linux/issues/129 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: fddi: skfp: Remove unused functionNathan Chancellor
Clang warns when a variable is assigned to itself. drivers/net/fddi/skfp/pcmplc.c:1257:6: warning: explicitly assigning value of variable of type 'int' to itself [-Wself-assign] phy = phy ; on_off = on_off ; ~~~ ^ ~~~ drivers/net/fddi/skfp/pcmplc.c:1257:21: warning: explicitly assigning value of variable of type 'int' to itself [-Wself-assign] phy = phy ; on_off = on_off ; ~~~~~~ ^ ~~~~~~ 2 warnings generated. Turns out this entire function doesn't actually do anything since SK_UNUSED is just casting the pointer to void. Remove it to silence this Clang warning. Link: https://github.com/ClangBuiltLinux/linux/issues/128 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21bna: Remove unnecessary self assignmentNathan Chancellor
Clang warns when a variable is assigned to itself. drivers/net/ethernet/brocade/bna/bna_enet.c:1800:9: warning: explicitly assigning value of variable of type 'int' to itself [-Wself-assign] for (i = i; i < (bna->ioceth.attr.num_ucmac * 2); i++) ~ ^ ~ drivers/net/ethernet/brocade/bna/bna_enet.c:1835:9: warning: explicitly assigning value of variable of type 'int' to itself [-Wself-assign] for (i = i; i < (bna->ioceth.attr.num_mcmac * 2); i++) ~ ^ ~ 2 warnings generated. Link: https://github.com/ClangBuiltLinux/linux/issues/110 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: neterion: vxge: Remove unnecessary parenthesesNathan Chancellor
Clang warns when multiple pairs of parentheses are used for a single conditional statement. drivers/net/ethernet/neterion/vxge/vxge-traffic.c:2265:31: warning: equality comparison with extraneous parentheses [-Wparentheses-equality] if ((hldev->config.intr_mode == VXGE_HW_INTR_MODE_MSIX_ONE_SHOT)) ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/neterion/vxge/vxge-traffic.c:2265:31: note: remove extraneous parentheses around the comparison to silence this warning if ((hldev->config.intr_mode == VXGE_HW_INTR_MODE_MSIX_ONE_SHOT)) ~ ^ ~ drivers/net/ethernet/neterion/vxge/vxge-traffic.c:2265:31: note: use '=' to turn this equality comparison into an assignment if ((hldev->config.intr_mode == VXGE_HW_INTR_MODE_MSIX_ONE_SHOT)) ^~ = 1 warning generated. Link: https://github.com/ClangBuiltLinux/linux/issues/124 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: phy: don't reschedule state machine when PHY is haltedHeiner Kallweit
When being in state PHY_HALTED we don't have to reschedule the state machine, phy_start() will start it again. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21netlabel: check for IPV4MASK in addrinfo_getSean Tranchetti
netlbl_unlabel_addrinfo_get() assumes that if it finds the NLBL_UNLABEL_A_IPV4ADDR attribute, it must also have the NLBL_UNLABEL_A_IPV4MASK attribute as well. However, this is not necessarily the case as the current checks in netlbl_unlabel_staticadd() and friends are not sufficent to enforce this. If passed a netlink message with NLBL_UNLABEL_A_IPV4ADDR, NLBL_UNLABEL_A_IPV6ADDR, and NLBL_UNLABEL_A_IPV6MASK attributes, these functions will all call netlbl_unlabel_addrinfo_get() which will then attempt dereference NULL when fetching the non-existent NLBL_UNLABEL_A_IPV4MASK attribute: Unable to handle kernel NULL pointer dereference at virtual address 0 Process unlab (pid: 31762, stack limit = 0xffffff80502d8000) Call trace: netlbl_unlabel_addrinfo_get+0x44/0xd8 netlbl_unlabel_staticremovedef+0x98/0xe0 genl_rcv_msg+0x354/0x388 netlink_rcv_skb+0xac/0x118 genl_rcv+0x34/0x48 netlink_unicast+0x158/0x1f0 netlink_sendmsg+0x32c/0x338 sock_sendmsg+0x44/0x60 ___sys_sendmsg+0x1d0/0x2a8 __sys_sendmsg+0x64/0xb4 SyS_sendmsg+0x34/0x4c el0_svc_naked+0x34/0x38 Code: 51001149 7100113f 540000a0 f9401508 (79400108) ---[ end trace f6438a488e737143 ]--- Kernel panic - not syncing: Fatal exception Signed-off-by: Sean Tranchetti <stranche@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21DRIVERS: net: macsec: Fix multiple coding style issuesRomain Aviolat
This patch fixes a couple of issues highlighted by checkpatch.pl: * Missing a blank line after declarations * Alignment should match open parenthesis Signed-off-by: Romain Aviolat <r.aviolat@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-22Merge branch 'bpf-sockmap-estab-fixes'Daniel Borkmann
John Fastabend says: ==================== Eric noted that using the close callback is not sufficient to catch all transitions from ESTABLISHED state to a LISTEN state. So this series does two things. First, only allow adding socks in ESTABLISH state and second use unhash callback to catch tcp_disconnect() transitions. v2: added check for ESTABLISH state in hash update sockmap as well v3: Do not release lock from unhash in error path, no lock was used in the first place. And drop not so useful code comments v4: convert, if (unhash()) return unhash(); return to if (unhash()) unhash(); return; Thanks for reviewing Yonghong I carried your ACKs forward. ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-09-22bpf: test_maps, only support ESTABLISHED socksJohn Fastabend
Ensure that sockets added to a sock{map|hash} that is not in the ESTABLISHED state is rejected. Fixes: 1aa12bdf1bfb ("bpf: sockmap, add sock close() hook to remove socks") Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-09-22bpf: sockmap, fix transition through disconnect without closeJohn Fastabend
It is possible (via shutdown()) for TCP socks to go trough TCP_CLOSE state via tcp_disconnect() without actually calling tcp_close which would then call our bpf_tcp_close() callback. Because of this a user could disconnect a socket then put it in a LISTEN state which would break our assumptions about sockets always being ESTABLISHED state. To resolve this rely on the unhash hook, which is called in the disconnect case, to remove the sock from the sockmap. Reported-by: Eric Dumazet <edumazet@google.com> Fixes: 1aa12bdf1bfb ("bpf: sockmap, add sock close() hook to remove socks") Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-09-22bpf: sockmap only allow ESTABLISHED sock stateJohn Fastabend
After this patch we only allow socks that are in ESTABLISHED state or are being added via a sock_ops event that is transitioning into an ESTABLISHED state. By allowing sock_ops events we allow users to manage sockmaps directly from sock ops programs. The two supported sock_ops ops are BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB and BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB. Similar to TLS ULP this ensures sk_user_data is correct. Reported-by: Eric Dumazet <edumazet@google.com> Fixes: 1aa12bdf1bfb ("bpf: sockmap, add sock close() hook to remove socks") Signed-off-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Yonghong Song <yhs@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2018-09-21Merge tag 'pinctrl-v4.19-3' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Linus writes: "Pin control fixes for v4.19: - Two fixes for the Intel pin controllers than cause problems on laptops." * tag 'pinctrl-v4.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: intel: Do pin translation in other GPIO operations as well pinctrl: cannonlake: Fix gpio base for GPP-E
2018-09-21scsi: sd: don't crash the host on invalid commandsJohannes Thumshirn
When sd_init_command() get's a command with a unknown req_op() it crashes the system via BUG(). This makes debugging the actual reason for the broken request cmd_flags pretty hard as the system is down before it's able to write out debugging data on the serial console or the trace buffer. Change the BUG() to a WARN_ON() and return BLKPREP_KILL to fail gracefully and return an I/O error to the producer of the request. Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Bart Van Assche <bvanassche@acm.org> Cc: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-21scsi: ipr: System hung while dlpar adding primary ipr adapter backWen Xiong
While dlpar adding primary ipr adapter back, driver goes through adapter initialization then schedule ipr_worker_thread to start te disk scan by dropping the host lock, calling scsi_add_device. Then get the adapter reset request again, so driver does scsi_block_requests, this will cause the scsi_add_device get hung until we unblock. But we can't run ipr_worker_thread to do the unblock because its stuck in scsi_add_device. This patch fixes the issue. [mkp: typo and whitespace fixes] Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-21scsi: target: iscsi: Use bin2hex instead of a re-implementationVincent Pelletier
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Reviewed-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-21scsi: target: iscsi: Use hex2bin instead of a re-implementationVincent Pelletier
This change has the following effects, in order of descreasing importance: 1) Prevent a stack buffer overflow 2) Do not append an unnecessary NULL to an anyway binary buffer, which is writing one byte past client_digest when caller is: chap_string_to_hex(client_digest, chap_r, strlen(chap_r)); The latter was found by KASAN (see below) when input value hes expected size (32 hex chars), and further analysis revealed a stack buffer overflow can happen when network-received value is longer, allowing an unauthenticated remote attacker to smash up to 17 bytes after destination buffer (16 bytes attacker-controlled and one null). As switching to hex2bin requires specifying destination buffer length, and does not internally append any null, it solves both issues. This addresses CVE-2018-14633. Beyond this: - Validate received value length and check hex2bin accepted the input, to log this rejection reason instead of just failing authentication. - Only log received CHAP_R and CHAP_C values once they passed sanity checks. ================================================================== BUG: KASAN: stack-out-of-bounds in chap_string_to_hex+0x32/0x60 [iscsi_target_mod] Write of size 1 at addr ffff8801090ef7c8 by task kworker/0:0/1021 CPU: 0 PID: 1021 Comm: kworker/0:0 Tainted: G O 4.17.8kasan.sess.connops+ #2 Hardware name: To be filled by O.E.M. To be filled by O.E.M./Aptio CRB, BIOS 5.6.5 05/19/2014 Workqueue: events iscsi_target_do_login_rx [iscsi_target_mod] Call Trace: dump_stack+0x71/0xac print_address_description+0x65/0x22e ? chap_string_to_hex+0x32/0x60 [iscsi_target_mod] kasan_report.cold.6+0x241/0x2fd chap_string_to_hex+0x32/0x60 [iscsi_target_mod] chap_server_compute_md5.isra.2+0x2cb/0x860 [iscsi_target_mod] ? chap_binaryhex_to_asciihex.constprop.5+0x50/0x50 [iscsi_target_mod] ? ftrace_caller_op_ptr+0xe/0xe ? __orc_find+0x6f/0xc0 ? unwind_next_frame+0x231/0x850 ? kthread+0x1a0/0x1c0 ? ret_from_fork+0x35/0x40 ? ret_from_fork+0x35/0x40 ? iscsi_target_do_login_rx+0x3bc/0x4c0 [iscsi_target_mod] ? deref_stack_reg+0xd0/0xd0 ? iscsi_target_do_login_rx+0x3bc/0x4c0 [iscsi_target_mod] ? is_module_text_address+0xa/0x11 ? kernel_text_address+0x4c/0x110 ? __save_stack_trace+0x82/0x100 ? ret_from_fork+0x35/0x40 ? save_stack+0x8c/0xb0 ? 0xffffffffc1660000 ? iscsi_target_do_login+0x155/0x8d0 [iscsi_target_mod] ? iscsi_target_do_login_rx+0x3bc/0x4c0 [iscsi_target_mod] ? process_one_work+0x35c/0x640 ? worker_thread+0x66/0x5d0 ? kthread+0x1a0/0x1c0 ? ret_from_fork+0x35/0x40 ? iscsi_update_param_value+0x80/0x80 [iscsi_target_mod] ? iscsit_release_cmd+0x170/0x170 [iscsi_target_mod] chap_main_loop+0x172/0x570 [iscsi_target_mod] ? chap_server_compute_md5.isra.2+0x860/0x860 [iscsi_target_mod] ? rx_data+0xd6/0x120 [iscsi_target_mod] ? iscsit_print_session_params+0xd0/0xd0 [iscsi_target_mod] ? cyc2ns_read_begin.part.2+0x90/0x90 ? _raw_spin_lock_irqsave+0x25/0x50 ? memcmp+0x45/0x70 iscsi_target_do_login+0x875/0x8d0 [iscsi_target_mod] ? iscsi_target_check_first_request.isra.5+0x1a0/0x1a0 [iscsi_target_mod] ? del_timer+0xe0/0xe0 ? memset+0x1f/0x40 ? flush_sigqueue+0x29/0xd0 iscsi_target_do_login_rx+0x3bc/0x4c0 [iscsi_target_mod] ? iscsi_target_nego_release+0x80/0x80 [iscsi_target_mod] ? iscsi_target_restore_sock_callbacks+0x130/0x130 [iscsi_target_mod] process_one_work+0x35c/0x640 worker_thread+0x66/0x5d0 ? flush_rcu_work+0x40/0x40 kthread+0x1a0/0x1c0 ? kthread_bind+0x30/0x30 ret_from_fork+0x35/0x40 The buggy address belongs to the page: page:ffffea0004243bc0 count:0 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0x17fffc000000000() raw: 017fffc000000000 0000000000000000 0000000000000000 00000000ffffffff raw: ffffea0004243c20 ffffea0004243ba0 0000000000000000 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801090ef680: f2 f2 f2 f2 f2 f2 f2 01 f2 f2 f2 f2 f2 f2 f2 00 ffff8801090ef700: f2 f2 f2 f2 f2 f2 f2 00 02 f2 f2 f2 f2 f2 f2 00 >ffff8801090ef780: 00 f2 f2 f2 f2 f2 f2 00 00 f2 f2 f2 f2 f2 f2 00 ^ ffff8801090ef800: 00 f2 f2 f2 f2 f2 f2 00 00 00 00 02 f2 f2 f2 f2 ffff8801090ef880: f2 f2 f2 00 00 00 00 00 00 00 00 f2 f2 f2 f2 00 ================================================================== Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com> Reviewed-by: Mike Christie <mchristi@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2018-09-21Merge branch 'bnx2x-enhancements'David S. Miller
Shahed Shaikh says: ==================== bnx2x: enhancements This series adds below changes - - support for VF spoof-check configuration through .ndo_set_vf_spoofchk. - workaround for MFW bug regarding unexpected bandwidth notifcation in single function mode. - supply VF link status as part of get VF config handling. ==================== Signed-off-by: Shahed Shaikh <shahed.shaikh@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
2018-09-21bnx2x: Provide VF link status in ndo_get_vf_configShahed Shaikh
Provide current link status of VF in ndo_get_vf_config handler. Signed-off-by: Shahed Shaikh <Shahed.Shaikh@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21bnx2x: Ignore bandwidth attention in single function modeShahed Shaikh
This is a workaround for FW bug - MFW generates bandwidth attention in single function mode, which is only expected to be generated in multi function mode. This undesired attention in SF mode results in incorrect HW configuration and resulting into Tx timeout. Signed-off-by: Shahed Shaikh <Shahed.Shaikh@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21bnx2x: Add VF spoof-checking configurationShahed Shaikh
Add support for `ndo_set_vf_spoofchk' to allow PF control over its VF spoof-checking configuration. Signed-off-by: Shahed Shaikh <shahed.shaikh@cavium.com> Signed-off-by: Ariel Elior <ariel.elior@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21mISDN: remove redundant null pointer check before kfree_skbzhong jiang
kfree_skb has taken the null pointer into account. hence it is safe to remove the redundant null pointer check before kfree_skb. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: mscc: fix the frame extraction into the skbAntoine Tenart
When extracting frames from the Ocelot switch, the frame check sequence (FCS) is present at the end of the data extracted. The FCS was put into the sk buffer which introduced some issues (as length related ones), as the FCS shouldn't be part of an Rx sk buffer. This patch fixes the Ocelot switch extraction behaviour by discarding the FCS. Fixes: a556c76adc05 ("net: mscc: Add initial Ocelot switch support") Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21vhost_net: add a missing error returnDan Carpenter
We accidentally left out this error return so it leads to some use after free bugs later on. Fixes: 0a0be13b8fe2 ("vhost_net: batch submitting XDP buffers to underlayer sockets") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21Merge branch 'kfree_skb-NULL'David S. Miller
zhong jiang says: ==================== net: remove redundant null pointer check before kfree_skb The issue is detected with the help of Coccinelle. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21ipv6: remove redundant null pointer check before kfree_skbzhong jiang
kfree_skb has taken the null pointer into account. hence it is safe to remove the redundant null pointer check before kfree_skb. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: cxgb3_main: remove redundant null pointer check before kfree_skbzhong jiang
kfree_skb has taken the null pointer into account. hence it is safe to remove the redundant null pointer check before kfree_skb. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: nci: remove redundant null pointer check before kfree_skbzhong jiang
kfree_skb has taken the null pointer into account. hence it is safe to remove the redundant null pointer check before kfree_skb. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21ipv4: remove redundant null pointer check before kfree_skbzhong jiang
kfree_skb has taken the null pointer into account. hence it is safe to remove the redundant null pointer check before kfree_skb. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: cxgb3: remove redundant null pointer check before kfree_skbzhong jiang
kfree_skb has taken the null pointer into account. hence it is safe to remove the redundant null pointer check before kfree_skb. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: tap: remove redundant null pointer check before kfree_skbzhong jiang
kfree_skb has taken the null pointer into account. hence it is safe to remove the redundant null pointer check before kfree_skb. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: neterion: remove redundant continuezhong jiang
The continue will not truely skip any code. hence it is safe to remove it. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net: amd: remove redundant continuezhong jiang
The continue will not truely skip any code. hence it is safe to remove it. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21net_sched: change tcf_del_walker() to take idrinfo->lockVlad Buslov
Action API was changed to work with actions and action_idr in concurrency safe manner, however tcf_del_walker() still uses actions without taking a reference or idrinfo->lock first, and deletes them directly, disregarding possible concurrent delete. Change tcf_del_walker() to take idrinfo->lock while iterating over actions and use new tcf_idr_release_unsafe() to release them while holding the lock. And the blocking function fl_hw_destroy_tmplt() could be called when we put a filter chain, so defer it to a work queue. Signed-off-by: Vlad Buslov <vladbu@mellanox.com> [xiyou.wangcong@gmail.com: heavily modify the code and changelog] Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-21Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmGreg Kroah-Hartman
Paolo writes: "It's mostly small bugfixes and cleanups, mostly around x86 nested virtualization. One important change, not related to nested virtualization, is that the ability for the guest kernel to trap CPUID instructions (in Linux that's the ARCH_SET_CPUID arch_prctl) is now masked by default. This is because the feature is detected through an MSR; a very bad idea that Intel seems to like more and more. Some applications choke if the other fields of that MSR are not initialized as on real hardware, hence we have to disable the whole MSR by default, as was the case before Linux 4.12." * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (23 commits) KVM: nVMX: Fix bad cleanup on error of get/set nested state IOCTLs kvm: selftests: Add platform_info_test KVM: x86: Control guest reads of MSR_PLATFORM_INFO KVM: x86: Turbo bits in MSR_PLATFORM_INFO nVMX x86: Check VPID value on vmentry of L2 guests nVMX x86: check posted-interrupt descriptor addresss on vmentry of L2 KVM: nVMX: Wake blocked vCPU in guest-mode if pending interrupt in virtual APICv KVM: VMX: check nested state and CR4.VMXE against SMM kvm: x86: make kvm_{load|put}_guest_fpu() static x86/hyper-v: rename ipi_arg_{ex,non_ex} structures KVM: VMX: use preemption timer to force immediate VMExit KVM: VMX: modify preemption timer bit only when arming timer KVM: VMX: immediately mark preemption timer expired only for zero value KVM: SVM: Switch to bitmap_zalloc() KVM/MMU: Fix comment in walk_shadow_page_lockless_end() kvm: selftests: use -pthread instead of -lpthread KVM: x86: don't reset root in kvm_mmu_setup() kvm: mmu: Don't read PDPTEs when paging is not enabled x86/kvm/lapic: always disable MMIO interface in x2APIC mode KVM: s390: Make huge pages unavailable in ucontrol VMs ...