- 27 Sep, 2021 12 commits
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David S. Miller authored
Merge tag 'mac80211-for-net-2021-09-27' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes berg says: ==================== Some fixes: * potential use-after-free in CCMP/GCMP RX processing * potential use-after-free in TX A-MSDU processing * revert to low data rates for no-ack as the commit broke other things * limit VHT MCS/NSS in radiotap injection * drop frames with invalid addresses in IBSS mode * check rhashtable_init() return value in mesh * fix potentially unaligned access in mesh * fix late beacon hrtimer handling in hwsim (syzbot) * fix documentation for PTK0 rekeying ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Andrew Lunn says: ==================== mv88e6xxx: MTU fixes These three patches fix MTU issues reported by 曹煜. There are two different ways of configuring the MTU in the hardware. The 6161 family is using the wrong method. Some of the marvell switch enforce the MTU when the port is used for CPU/DSA, some don't. Because of the extra header, the MTU needs increasing with this overhead. ==================== Signed-off-by: -
Andrew Lunn authored
Same members of the Marvell Ethernet switches impose MTU restrictions on ports used for connecting to the CPU or another switch for DSA. If the MTU is set too low, tagged frames will be discarded. Ensure the worst case tagger overhead is included in setting the MTU for DSA and CPU ports. Fixes: 1baf0fac ("net: dsa: mv88e6xxx: Use chip-wide max frame size for MTU") Reported by: 曹煜 <cao88yu@gmail.com> Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Andrew Lunn authored
The MTU passed to the DSA driver is the payload size, typically 1500. However, the switch uses the frame size when applying restrictions. Adjust the MTU with the size of the Ethernet header and the frame checksum. The VLAN header also needs to be included when the frame size it per port, but not when it is global. Fixes: 1baf0fac ("net: dsa: mv88e6xxx: Use chip-wide max frame size for MTU") Reported by: 曹煜 <cao88yu@gmail.com> Signed-off-by:
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Andrew Lunn authored
The datasheets suggests the 6161 uses a per port setting for jumbo frames. Testing has however shown this is not correct, it uses the old style chip wide MTU control. Change the ops in the 6161 structure to reflect this. Fixes: 1baf0fac ("net: dsa: mv88e6xxx: Use chip-wide max frame size for MTU") Reported by: 曹煜 <cao88yu@gmail.com> Signed-off-by:
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Yanfei Xu authored
Once device_register() failed, we should call put_device() to decrement reference count for cleanup. Or it will cause memory leak. BUG: memory leak unreferenced object 0xffff888114032e00 (size 256): comm "kworker/1:3", pid 2960, jiffies 4294943572 (age 15.920s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 08 2e 03 14 81 88 ff ff ................ 08 2e 03 14 81 88 ff ff 90 76 65 82 ff ff ff ff .........ve..... backtrace: [<ffffffff8265cfab>] kmalloc include/linux/slab.h:591 [inline] [<ffffffff8265cfab>] kzalloc include/linux/slab.h:721 [inline] [<ffffffff8265cfab>] device_private_init drivers/base/core.c:3203 [inline] [<ffffffff8265cfab>] device_add+0x89b/0xdf0 drivers/base/core.c:3253 [<ffffffff828dd643>] __mdiobus_register+0xc3/0x450 drivers/net/phy/mdio_bus.c:537 [<ffffffff828cb835>] __devm_mdiobus_register+0x75/0xf0 drivers/net/phy/mdio_devres.c:87 [<ffffffff82b92a00>] ax88772_init_mdio drivers/net/usb/asix_devices.c:676 [inline] [<ffffffff82b92a00>] ax88772_bind+0x330/0x480 drivers/net/usb/asix_devices.c:786 [<ffffffff82baa33f>] usbnet_probe+0x3ff/0xdf0 drivers/net/usb/usbnet.c:1745 [<ffffffff82c36e17>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff82661d17>] call_driver_probe drivers/base/dd.c:517 [inline] [<ffffffff82661d17>] really_probe.part.0+0xe7/0x380 drivers/base/dd.c:596 [<ffffffff826620bc>] really_probe drivers/base/dd.c:558 [inline] [<ffffffff826620bc>] __driver_probe_device+0x10c/0x1e0 drivers/base/dd.c:751 [<ffffffff826621ba>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:781 [<ffffffff82662a26>] __device_attach_driver+0xf6/0x140 drivers/base/dd.c:898 [<ffffffff8265eca7>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427 [<ffffffff826625a2>] __device_attach+0x122/0x260 drivers/base/dd.c:969 [<ffffffff82660916>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:487 [<ffffffff8265cd0b>] device_add+0x5fb/0xdf0 drivers/base/core.c:3359 [<ffffffff82c343b9>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2170 [<ffffffff82c4473c>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 BUG: memory leak unreferenced object 0xffff888116f06900 (size 32): comm "kworker/0:2", pid 2670, jiffies 4294944448 (age 7.160s) hex dump (first 32 bytes): 75 73 62 2d 30 30 31 3a 30 30 33 00 00 00 00 00 usb-001:003..... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff81484516>] kstrdup+0x36/0x70 mm/util.c:60 [<ffffffff814845a3>] kstrdup_const+0x53/0x80 mm/util.c:83 [<ffffffff82296ba2>] kvasprintf_const+0xc2/0x110 lib/kasprintf.c:48 [<ffffffff82358d4b>] kobject_set_name_vargs+0x3b/0xe0 lib/kobject.c:289 [<ffffffff826575f3>] dev_set_name+0x63/0x90 drivers/base/core.c:3147 [<ffffffff828dd63b>] __mdiobus_register+0xbb/0x450 drivers/net/phy/mdio_bus.c:535 [<ffffffff828cb835>] __devm_mdiobus_register+0x75/0xf0 drivers/net/phy/mdio_devres.c:87 [<ffffffff82b92a00>] ax88772_init_mdio drivers/net/usb/asix_devices.c:676 [inline] [<ffffffff82b92a00>] ax88772_bind+0x330/0x480 drivers/net/usb/asix_devices.c:786 [<ffffffff82baa33f>] usbnet_probe+0x3ff/0xdf0 drivers/net/usb/usbnet.c:1745 [<ffffffff82c36e17>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<ffffffff82661d17>] call_driver_probe drivers/base/dd.c:517 [inline] [<ffffffff82661d17>] really_probe.part.0+0xe7/0x380 drivers/base/dd.c:596 [<ffffffff826620bc>] really_probe drivers/base/dd.c:558 [inline] [<ffffffff826620bc>] __driver_probe_device+0x10c/0x1e0 drivers/base/dd.c:751 [<ffffffff826621ba>] driver_probe_device+0x2a/0x120 drivers/base/dd.c:781 [<ffffffff82662a26>] __device_attach_driver+0xf6/0x140 drivers/base/dd.c:898 [<ffffffff8265eca7>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:427 [<ffffffff826625a2>] __device_attach+0x122/0x260 drivers/base/dd.c:969 Reported-by: syzbot+398e7dc692ddbbb4cfec@syzkaller.appspotmail.com Signed-off-by:Yanfei Xu <yanfei.xu@windriver.com> Reviewed-by:
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Desnes A. Nunes do Rosario authored
This reverts commit d437f5aa. Code has been duplicated through commit <273c29e9> "ibmvnic: check failover_pending in login response" Signed-off-by:
Desnes A. Nunes do Rosario <desnesn@linux.ibm.com> Signed-off-by:
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Matthew Hagan authored
This patch is a replication of Christian Lamparter's "net: bgmac-bcma: handle deferred probe error due to mac-address" patch for the bgmac-platform driver [1]. As is the case with the bgmac-bcma driver, this change is to cover the scenario where the MAC address cannot yet be discovered due to reliance on an nvmem provider which is yet to be instantiated, resulting in a random address being assigned that has to be manually overridden. [1] https://lore.kernel.org/netdev/20210919115725.29064-1-chunkeey@gmail.comSigned-off-by:
Matthew Hagan <mnhagan88@gmail.com> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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Colin Ian King authored
There is a spelling mistake in a dev_err error message. Fix it. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Alexander Wetzel authored
@IEEE80211_KEY_FLAG_GENERATE_IV setting is irrelevant for RX. Move the requirement to the correct section in the PTK0 rekey documentation. Signed-off-by:
Alexander Wetzel <alexander@wetzel-home.de> Link: https://lore.kernel.org/r/20210924200514.7936-1-alexander@wetzel-home.deSigned-off-by:
Johannes Berg <johannes.berg@intel.com>
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MichelleJin authored
When rhashtable_init() fails, it returns -EINVAL. However, since error return value of rhashtable_init is not checked, it can cause use of uninitialized pointers. So, fix unhandled errors of rhashtable_init. Signed-off-by:
MichelleJin <shjy180909@gmail.com> Link: https://lore.kernel.org/r/20210927033457.1020967-4-shjy180909@gmail.comSigned-off-by:
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Johannes Berg authored
When PN checking is done in mac80211, for fragmentation we need to copy the PN to the RX struct so we can later use it to do a comparison, since commit bf30ca92 ("mac80211: check defrag PN against current frame"). Unfortunately, in that commit I used the 'hdr' variable without it being necessarily valid, so use-after-free could occur if it was necessary to reallocate (parts of) the frame. Fix this by reloading the variable after the code that results in the reallocations, if any. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=214401. Cc: stable@vger.kernel.org Fixes: bf30ca92 ("mac80211: check defrag PN against current frame") Link: https://lore.kernel.org/r/20210927115838.12b9ac6bb233.I1d066acd5408a662c3b6e828122cd314fcb28cdb@changeidSigned-off-by:
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- 26 Sep, 2021 1 commit
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王贇 authored
We observed below report when playing with netlink sock: UBSAN: shift-out-of-bounds in net/sched/sch_api.c:580:10 shift exponent 249 is too large for 32-bit type CPU: 0 PID: 685 Comm: a.out Not tainted Call Trace: dump_stack_lvl+0x8d/0xcf ubsan_epilogue+0xa/0x4e __ubsan_handle_shift_out_of_bounds+0x161/0x182 __qdisc_calculate_pkt_len+0xf0/0x190 __dev_queue_xmit+0x2ed/0x15b0 it seems like kernel won't check the stab log value passing from user, and will use the insane value later to calculate pkt_len. This patch just add a check on the size/cell_log to avoid insane calculation. Reported-by:
Abaci <abaci@linux.alibaba.com> Signed-off-by:
Michael Wang <yun.wang@linux.alibaba.com> Signed-off-by:
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- 25 Sep, 2021 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nfJakub Kicinski authored
Pablo Neira Ayuso says: ==================== Netfilter/IPVS fixes for net 1) ipset limits the max allocatable memory via kvmalloc() to MAX_INT, from Jozsef Kadlecsik. 2) Check ip_vs_conn_tab_bits value to be in the range specified in Kconfig, from Andrea Claudi. 3) Initialize fragment offset in ip6tables, from Jeremy Sowden. 4) Make conntrack hash chain length random, from Florian Westphal. 5) Add zone ID to conntrack and NAT hashtuple again, also from Florian. 6) Add selftests for bidirectional zone support and colliding tuples, from Florian Westphal. 7) Unlink table before synchronize_rcu when cleaning tables with owner, from Florian. 8) ipset limits the max allocatable memory via kvmalloc() to MAX_INT. 9) Release conntrack entries via workqueue in masquerade, from Florian. 10) Fix bogus net_init in iptables raw table definition, also from Florian. 11) Work around missing softdep in log extensions, from Florian Westphal. 12) Serialize hash resizes and cleanups with mutex, from Eric Dumazet. * git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf: netfilter: conntrack: serialize hash resizes and cleanups netfilter: log: work around missing softdep backend module netfilter: iptable_raw: drop bogus net_init annotation netfilter: nf_nat_masquerade: defer conntrack walk to work queue netfilter: nf_nat_masquerade: make async masq_inet6_event handling generic netfilter: nf_tables: Fix oversized kvmalloc() calls netfilter: nf_tables: unlink table before deleting it selftests: netfilter: add zone stress test with colliding tuples selftests: netfilter: add selftest for directional zone support netfilter: nat: include zone id in nat table hash again netfilter: conntrack: include zone id in tuple hash again netfilter: conntrack: make max chain length random netfilter: ip6_tables: zero-initialize fragment offset ipvs: check that ip_vs_conn_tab_bits is between 8 and 20 netfilter: ipset: Fix oversized kvmalloc() calls ==================== Link: https://lore.kernel.org/r/20210924221113.348767-1-pablo@netfilter.orgSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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- 24 Sep, 2021 8 commits
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Daniele Palmas authored
Fix double free_netdev when mhi_prepare_for_transfer fails. Fixes: 3ffec6a1 ("net: Add mhi-net driver") Signed-off-by:
Daniele Palmas <dnlplm@gmail.com> Reviewed-by:
Manivannan Sadhasivam <mani@kernel.org> Reviewed-by:
Loic Poulain <loic.poulain@linaro.org> Signed-off-by:
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Aaro Koskinen authored
After commit 05b35e7e ("smsc95xx: add phylib support"), link changes are no longer propagated to usbnet. As a result, rx URB allocation won't happen until there is a packet sent out first (this might never happen, e.g. running just ssh server with a static IP). Fix by triggering usbnet EVENT_LINK_CHANGE. Fixes: 05b35e7e ("smsc95xx: add phylib support") Signed-off-by:
Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by:
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Xiao Liang authored
Multipath RTA_FLOW is embedded in nexthop. Dump it in fib_add_nexthop() to get the length of rtnexthop correct. Fixes: b0f60193 ("ipv4: Refactor nexthop attributes in fib_dump_info") Signed-off-by:
Xiao Liang <shaw.leon@gmail.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Signed-off-by:
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Vladimir Oltean authored
The enetc phylink .mac_config handler intends to clear the IFMODE field (bits 1:0) of the PM0_IF_MODE register, but incorrectly clears all the other fields instead. For normal operation, the bug was inconsequential, due to the fact that we write the PM0_IF_MODE register in two stages, first in phylink .mac_config (which incorrectly cleared out a bunch of stuff), then we update the speed and duplex to the correct values in phylink .mac_link_up. Judging by the code (not tested), it looks like maybe loopback mode was broken, since this is one of the settings in PM0_IF_MODE which is incorrectly cleared. Fixes: c76a9721 ("net: enetc: force the RGMII speed and duplex instead of operating in inband mode") Reported-by:
Pavel Machek (CIP) <pavel@denx.de> Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by:
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David S. Miller authored
Mat Martineau says: ==================== mptcp: Bug fixes This patch set includes two separate fixes for the net tree: Patch 1 makes sure that MPTCP token searches are always limited to the appropriate net namespace. Patch 2 allows userspace to always change the backup settings for configured endpoints even if those endpoints are not currently in use. ==================== Signed-off-by: -
Davide Caratti authored
current Linux refuses to change the 'backup' bit of MPTCP endpoints, i.e. using MPTCP_PM_CMD_SET_FLAGS, unless it finds (at least) one subflow that matches the endpoint address. There is no reason for that, so we can just ignore the return value of mptcp_nl_addr_backup(). In this way, endpoints can reconfigure their 'backup' flag even if no MPTCP sockets are open (or more generally, in case the MP_PRIO message is not sent out). Fixes: 0f9f696a ("mptcp: add set_flags command in PM netlink") Signed-off-by:
Davide Caratti <dcaratti@redhat.com> Signed-off-by:
Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by:
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Florian Westphal authored
mptcp_token_get_sock() may return a mptcp socket that is in a different net namespace than the socket that received the token value. The mptcp syncookie code path had an explicit check for this, this moves the test into mptcp_token_get_sock() function. Eventually token.c should be converted to pernet storage, but such change is not suitable for net tree. Fixes: 2c5ebd00 ("mptcp: refactor token container") Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Xin Long authored
We should always check if skb_header_pointer's return is NULL before using it, otherwise it may cause null-ptr-deref, as syzbot reported: KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:sctp_rcv_ootb net/sctp/input.c:705 [inline] RIP: 0010:sctp_rcv+0x1d84/0x3220 net/sctp/input.c:196 Call Trace: <IRQ> sctp6_rcv+0x38/0x60 net/sctp/ipv6.c:1109 ip6_protocol_deliver_rcu+0x2e9/0x1ca0 net/ipv6/ip6_input.c:422 ip6_input_finish+0x62/0x170 net/ipv6/ip6_input.c:463 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ip6_input+0x9c/0xd0 net/ipv6/ip6_input.c:472 dst_input include/net/dst.h:460 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] ipv6_rcv+0x28c/0x3c0 net/ipv6/ip6_input.c:297 Fixes: 3acb50c1 ("sctp: delay as much as possible skb_linearize") Reported-by: syzbot+581aff2ae6b860625116@syzkaller.appspotmail.com Signed-off-by:
Xin Long <lucien.xin@gmail.com> Acked-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by:
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- 23 Sep, 2021 15 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Jakub Kicinski: "Current release - regressions: - dsa: bcm_sf2: fix array overrun in bcm_sf2_num_active_ports() Previous releases - regressions: - introduce a shutdown method to mdio device drivers, and make DSA switch drivers compatible with masters disappearing on shutdown; preventing infinite reference wait - fix issues in mdiobus users related to ->shutdown vs ->remove - virtio-net: fix pages leaking when building skb in big mode - xen-netback: correct success/error reporting for the SKB-with-fraglist - dsa: tear down devlink port regions when tearing down the devlink port on error - nexthop: fix division by zero while replacing a resilient group - hns3: check queue, vf, vlan ids range before using Previous releases - always broken: - napi: fix race against netpoll causing NAPI getting stuck - mlx4_en: ensure link operstate is updated even if link comes up before netdev registration - bnxt_en: fix TX timeout when TX ring size is set to the smallest - enetc: fix illegal access when reading affinity_hint; prevent oops on sysfs access - mtk_eth_soc: avoid creating duplicate offload entries Misc: - core: correct the sock::sk_lock.owned lockdep annotations" * tag 'net-5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits) atlantic: Fix issue in the pm resume flow. net/mlx4_en: Don't allow aRFS for encapsulated packets net: mscc: ocelot: fix forwarding from BLOCKING ports remaining enabled net: ethernet: mtk_eth_soc: avoid creating duplicate offload entries nfc: st-nci: Add SPI ID matching DT compatible MAINTAINERS: remove Guvenc Gulce as net/smc maintainer nexthop: Fix memory leaks in nexthop notification chain listeners mptcp: ensure tx skbs always have the MPTCP ext qed: rdma - don't wait for resources under hw error recovery flow s390/qeth: fix deadlock during failing recovery s390/qeth: Fix deadlock in remove_discipline s390/qeth: fix NULL deref in qeth_clear_working_pool_list() net: dsa: realtek: register the MDIO bus under devres net: dsa: don't allocate the slave_mii_bus using devres Doc: networking: Fox a typo in ice.rst net: dsa: fix dsa_tree_setup error path net/smc: fix 'workqueue leaked lock' in smc_conn_abort_work net/smc: add missing error check in smc_clc_prfx_set() net: hns3: fix a return value error in hclge_get_reset_status() net: hns3: check vlan id before using it ... -
Shakeel Butt authored
Prior to the commit 7e1c0d6f ("memcg: switch lruvec stats to rstat") and the commit aa48e47e ("memcg: infrastructure to flush memcg stats"), each lruvec memcg stats can be off by (nr_cgroups * nr_cpus * 32) at worst and for unbounded amount of time. The commit aa48e47e moved the lruvec stats to rstat infrastructure and the commit 7e1c0d6f bounded the error for all the lruvec stats to (nr_cpus * 32) at worst for at most 2 seconds. More specifically it decoupled the number of stats and the number of cgroups from the error rate. However this reduction in error comes with the cost of triggering the slowpath of stats update more frequently. Previously in the slowpath the kernel adds the stats up the memcg tree. After aa48e47e, the kernel triggers the asyn lruvec stats flush through queue_work(). This causes regression reports from 0day kernel bot [1] as well as from phoronix test suite [2]. We tried two options to fix the regression: 1) Increase the threshold to trigger the slowpath in lruvec stats update codepath from 32 to 512. 2) Remove the slowpath from lruvec stats update codepath and instead flush the stats in the page refault codepath. The assumption is that the kernel timely flush the stats, so, the update tree would be small in the refault codepath to not cause the preformance impact. Following are the results of will-it-scale/page_fault[1|2|3] benchmark on four settings i.e. (1) 5.15-rc1 as baseline (2) 5.15-rc1 with aa48e47e and 7e1c0d6f reverted (3) 5.15-rc1 with option-1 (4) 5.15-rc1 with option-2. test (1) (2) (3) (4) pg_f1 368563 406277 (10.23%) 399693 (8.44%) 416398 (12.97%) pg_f2 338399 372133 (9.96%) 369180 (9.09%) 381024 (12.59%) pg_f3 500853 575399 (14.88%) 570388 (13.88%) 576083 (15.02%) From the above result, it seems like the option-2 not only solves the regression but also improves the performance for at least these benchmarks. Feng Tang (intel) ran the aim7 benchmark with these two options and confirms that option-1 reduces the regression but option-2 removes the regression. Michael Larabel (phoronix) ran multiple benchmarks with these options and reported the results at [3] and it shows for most benchmarks option-2 removes the regression introduced by the commit aa48e47e ("memcg: infrastructure to flush memcg stats"). Based on the experiment results, this patch proposed the option-2 as the solution to resolve the regression. Link: https://lore.kernel.org/all/20210726022421.GB21872@xsang-OptiPlex-9020 [1] Link: https://www.phoronix.com/scan.php?page=article&item=linux515-compile-regress [2] Link: https://openbenchmarking.org/result/2109226-DEBU-LINUX5104 [3] Fixes: aa48e47e ("memcg: infrastructure to flush memcg stats") Signed-off-by:
Shakeel Butt <shakeelb@google.com> Tested-by:
Michael Larabel <Michael@phoronix.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Roman Gushchin <guro@fb.com> Cc: Feng Tang <feng.tang@intel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Hillf Danton <hdanton@sina.com>, Cc: Michal Koutný <mkoutny@suse.com> Cc: Andrew Morton <akpm@linux-foundation.org>, Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Sudarsana Reddy Kalluru authored
After fixing hibernation resume flow, another usecase was found which should be explicitly handled - resume when device is in "down" state. Invoke aq_nic_init jointly with aq_nic_start only if ndev was already up during suspend/hibernate. We still need to perform nic_deinit() if caller requests for it, to handle the freeze/resume scenarios. Fixes: 57f780f1 ("atlantic: Fix driver resume flow.") Signed-off-by:
Sudarsana Reddy Kalluru <skalluru@marvell.com> Signed-off-by:
Igor Russkikh <irusskikh@marvell.com> Signed-off-by:
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Aya Levin authored
Driver doesn't support aRFS for encapsulated packets, return early error in such a case. Fixes: 1eb8c695 ("net/mlx4_en: Add accelerated RFS support") Signed-off-by:
Aya Levin <ayal@nvidia.com> Signed-off-by:
Tariq Toukan <tariqt@nvidia.com> Signed-off-by:
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Vladimir Oltean authored
The blamed commit made the fatally incorrect assumption that ports which aren't in the FORWARDING STP state should not have packets forwarded towards them, and that is all that needs to be done. However, that logic alone permits BLOCKING ports to forward to FORWARDING ports, which of course allows packet storms to occur when there is an L2 loop. The ocelot_get_bridge_fwd_mask should not only ask "what can the bridge do for you", but "what can you do for the bridge". This way, only FORWARDING ports forward to the other FORWARDING ports from the same bridging domain, and we are still compatible with the idea of multiple bridges. Fixes: df291e54 ("net: ocelot: support multiple bridges") Suggested-by:
Colin Foster <colin.foster@in-advantage.com> Reported-by:
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Felix Fietkau authored
Sometimes multiple CLS_REPLACE calls are issued for the same connection. rhashtable_insert_fast does not check for these duplicates, so multiple hardware flow entries can be created. Fix this by checking for an existing entry early Fixes: 502e84e2 ("net: ethernet: mtk_eth_soc: add flow offloading support") Signed-off-by:
Felix Fietkau <nbd@nbd.name> Signed-off-by:
Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by:
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Mark Brown authored
Currently autoloading for SPI devices does not use the DT ID table, it uses SPI modalises. Supporting OF modalises is going to be difficult if not impractical, an attempt was made but has been reverted, so ensure that module autoloading works for this driver by adding the part name used in the compatible to the list of SPI IDs. Fixes: 96c8395e ("spi: Revert modalias changes") Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Guvenc Gulce authored
Remove myself as net/smc maintainer, as I am leaving IBM soon and can not maintain net/smc anymore. Cc: Julian Wiedmann <jwi@linux.ibm.com> Acked-by:
Karsten Graul <kgraul@linux.ibm.com> Signed-off-by:
Guvenc Gulce <guvenc@linux.ibm.com> Signed-off-by:
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Ido Schimmel authored
syzkaller discovered memory leaks [1] that can be reduced to the following commands: # ip nexthop add id 1 blackhole # devlink dev reload pci/0000:06:00.0 As part of the reload flow, mlxsw will unregister its netdevs and then unregister from the nexthop notification chain. Before unregistering from the notification chain, mlxsw will receive delete notifications for nexthop objects using netdevs registered by mlxsw or their uppers. mlxsw will not receive notifications for nexthops using netdevs that are not dismantled as part of the reload flow. For example, the blackhole nexthop above that internally uses the loopback netdev as its nexthop device. One way to fix this problem is to have listeners flush their nexthop tables after unregistering from the notification chain. This is error-prone as evident by this patch and also not symmetric with the registration path where a listener receives a dump of all the existing nexthops. Therefore, fix this problem by replaying delete notifications for the listener being unregistered. This is symmetric to the registration path and also consistent with the netdev notification chain. The above means that unregister_nexthop_notifier(), like register_nexthop_notifier(), will have to take RTNL in order to iterate over the existing nexthops and that any callers of the function cannot hold RTNL. This is true for mlxsw and netdevsim, but not for the VXLAN driver. To avoid a deadlock, change the latter to unregister its nexthop listener without holding RTNL, making it symmetric to the registration path. [1] unreferenced object 0xffff88806173d600 (size 512): comm "syz-executor.0", pid 1290, jiffies 4295583142 (age 143.507s) hex dump (first 32 bytes): 41 9d 1e 60 80 88 ff ff 08 d6 73 61 80 88 ff ff A..`......sa.... 08 d6 73 61 80 88 ff ff 01 00 00 00 00 00 00 00 ..sa............ backtrace: [<ffffffff81a6b576>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<ffffffff81a6b576>] slab_post_alloc_hook+0x96/0x490 mm/slab.h:522 [<ffffffff81a716d3>] slab_alloc_node mm/slub.c:3206 [inline] [<ffffffff81a716d3>] slab_alloc mm/slub.c:3214 [inline] [<ffffffff81a716d3>] kmem_cache_alloc_trace+0x163/0x370 mm/slub.c:3231 [<ffffffff82e8681a>] kmalloc include/linux/slab.h:591 [inline] [<ffffffff82e8681a>] kzalloc include/linux/slab.h:721 [inline] [<ffffffff82e8681a>] mlxsw_sp_nexthop_obj_group_create drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:4918 [inline] [<ffffffff82e8681a>] mlxsw_sp_nexthop_obj_new drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:5054 [inline] [<ffffffff82e8681a>] mlxsw_sp_nexthop_obj_event+0x59a/0x2910 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:5239 [<ffffffff813ef67d>] notifier_call_chain+0xbd/0x210 kernel/notifier.c:83 [<ffffffff813f0662>] blocking_notifier_call_chain kernel/notifier.c:318 [inline] [<ffffffff813f0662>] blocking_notifier_call_chain+0x72/0xa0 kernel/notifier.c:306 [<ffffffff8384b9c6>] call_nexthop_notifiers+0x156/0x310 net/ipv4/nexthop.c:244 [<ffffffff83852bd8>] insert_nexthop net/ipv4/nexthop.c:2336 [inline] [<ffffffff83852bd8>] nexthop_add net/ipv4/nexthop.c:2644 [inline] [<ffffffff83852bd8>] rtm_new_nexthop+0x14e8/0x4d10 net/ipv4/nexthop.c:2913 [<ffffffff833e9a78>] rtnetlink_rcv_msg+0x448/0xbf0 net/core/rtnetlink.c:5572 [<ffffffff83608703>] netlink_rcv_skb+0x173/0x480 net/netlink/af_netlink.c:2504 [<ffffffff833de032>] rtnetlink_rcv+0x22/0x30 net/core/rtnetlink.c:5590 [<ffffffff836069de>] netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] [<ffffffff836069de>] netlink_unicast+0x5ae/0x7f0 net/netlink/af_netlink.c:1340 [<ffffffff83607501>] netlink_sendmsg+0x8e1/0xe30 net/netlink/af_netlink.c:1929 [<ffffffff832fde84>] sock_sendmsg_nosec net/socket.c:704 [inline] [<ffffffff832fde84>] sock_sendmsg net/socket.c:724 [inline] [<ffffffff832fde84>] ____sys_sendmsg+0x874/0x9f0 net/socket.c:2409 [<ffffffff83304a44>] ___sys_sendmsg+0x104/0x170 net/socket.c:2463 [<ffffffff83304c01>] __sys_sendmsg+0x111/0x1f0 net/socket.c:2492 [<ffffffff83304d5d>] __do_sys_sendmsg net/socket.c:2501 [inline] [<ffffffff83304d5d>] __se_sys_sendmsg net/socket.c:2499 [inline] [<ffffffff83304d5d>] __x64_sys_sendmsg+0x7d/0xc0 net/socket.c:2499 Fixes: 2a014b20 ("mlxsw: spectrum_router: Add support for nexthop objects") Signed-off-by:Ido Schimmel <idosch@nvidia.com> Reviewed-by:
Petr Machata <petrm@nvidia.com> Signed-off-by:
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Johannes Berg authored
Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our handling of the hrtimer here is wrong: If the timer fires late (e.g. due to vCPU scheduling, as reported by Dmitry/syzbot) then it tries to actually rearm the timer at the next deadline, which might be in the past already: 1 2 3 N N+1 | | | ... | | ^ intended to fire here (1) ^ next deadline here (2) ^ actually fired here The next time it fires, it's later, but will still try to schedule for the next deadline (now 3), etc. until it catches up with N, but that might take a long time, causing stalls etc. Now, all of this is simulation, so we just have to fix it, but note that the behaviour is wrong even per spec, since there's no value then in sending all those beacons unaligned - they should be aligned to the TBTT (1, 2, 3, ... in the picture), and if we're a bit (or a lot) late, then just resume at that point. Therefore, change the code to use hrtimer_forward_now() which will ensure that the next firing of the timer would be at N+1 (in the picture), i.e. the next interval point after the current time. Suggested-by:
Thomas Gleixner <tglx@linutronix.de> Reported-by:
Dmitry Vyukov <dvyukov@google.com> Reported-by: syzbot+0e964fad69a9c462bc1e@syzkaller.appspotmail.com Fixes: 01e59e46 ("mac80211_hwsim: hrtimer beacon") Reviewed-by:
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Johannes Berg authored
The pointer here points directly into the frame, so the access is potentially unaligned. Use get_unaligned_le16 to avoid that. Fixes: 3f52b7e3 ("mac80211: mesh power save basics") Link: https://lore.kernel.org/r/20210920154009.3110ff75be0c.Ib6a2ff9e9cc9bc6fca50fce631ec1ce725cc926b@changeidSigned-off-by:
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Lorenzo Bianconi authored
Limit max values for vht mcs and nss in ieee80211_parse_tx_radiotap routine in order to fix the following warning reported by syzbot: WARNING: CPU: 0 PID: 10717 at include/net/mac80211.h:989 ieee80211_rate_set_vht include/net/mac80211.h:989 [inline] WARNING: CPU: 0 PID: 10717 at include/net/mac80211.h:989 ieee80211_parse_tx_radiotap+0x101e/0x12d0 net/mac80211/tx.c:2244 Modules linked in: CPU: 0 PID: 10717 Comm: syz-executor.5 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ieee80211_rate_set_vht include/net/mac80211.h:989 [inline] RIP: 0010:ieee80211_parse_tx_radiotap+0x101e/0x12d0 net/mac80211/tx.c:2244 RSP: 0018:ffffc9000186f3e8 EFLAGS: 00010216 RAX: 0000000000000618 RBX: ffff88804ef76500 RCX: ffffc900143a5000 RDX: 0000000000040000 RSI: ffffffff888f478e RDI: 0000000000000003 RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000100 R10: ffffffff888f46f9 R11: 0000000000000000 R12: 00000000fffffff8 R13: ffff88804ef7653c R14: 0000000000000001 R15: 0000000000000004 FS: 00007fbf5718f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2de23000 CR3: 000000006a671000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: ieee80211_monitor_select_queue+0xa6/0x250 net/mac80211/iface.c:740 netdev_core_pick_tx+0x169/0x2e0 net/core/dev.c:4089 __dev_queue_xmit+0x6f9/0x3710 net/core/dev.c:4165 __bpf_tx_skb net/core/filter.c:2114 [inline] __bpf_redirect_no_mac net/core/filter.c:2139 [inline] __bpf_redirect+0x5ba/0xd20 net/core/filter.c:2162 ____bpf_clone_redirect net/core/filter.c:2429 [inline] bpf_clone_redirect+0x2ae/0x420 net/core/filter.c:2401 bpf_prog_eeb6f53a69e5c6a2+0x59/0x234 bpf_dispatcher_nop_func include/linux/bpf.h:717 [inline] __bpf_prog_run include/linux/filter.h:624 [inline] bpf_prog_run include/linux/filter.h:631 [inline] bpf_test_run+0x381/0xa30 net/bpf/test_run.c:119 bpf_prog_test_run_skb+0xb84/0x1ee0 net/bpf/test_run.c:663 bpf_prog_test_run kernel/bpf/syscall.c:3307 [inline] __sys_bpf+0x2137/0x5df0 kernel/bpf/syscall.c:4605 __do_sys_bpf kernel/bpf/syscall.c:4691 [inline] __se_sys_bpf kernel/bpf/syscall.c:4689 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9 Reported-by: syzbot+0196ac871673f0c20f68@syzkaller.appspotmail.com Fixes: 646e76bb ("mac80211: parse VHT info in injected frames") Signed-off-by:
Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/c26c3f02dcb38ab63b2f2534cb463d95ee81bb13.1632141760.git.lorenzo@kernel.orgSigned-off-by:
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YueHaibing authored
WARNING: CPU: 1 PID: 9 at net/mac80211/sta_info.c:554 sta_info_insert_rcu+0x121/0x12a0 Modules linked in: CPU: 1 PID: 9 Comm: kworker/u8:1 Not tainted 5.14.0-rc7+ #253 Workqueue: phy3 ieee80211_iface_work RIP: 0010:sta_info_insert_rcu+0x121/0x12a0 ... Call Trace: ieee80211_ibss_finish_sta+0xbc/0x170 ieee80211_ibss_work+0x13f/0x7d0 ieee80211_iface_work+0x37a/0x500 process_one_work+0x357/0x850 worker_thread+0x41/0x4d0 If an Ad-Hoc node receives packets with invalid source MAC address, it hits a WARN_ON in sta_info_insert_check(), this can spam the log. Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20210827144230.39944-1-yuehaibing@huawei.comSigned-off-by:
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Chih-Kang Chang authored
In ieee80211_amsdu_aggregate() set a pointer frag_tail point to the end of skb_shinfo(head)->frag_list, and use it to bind other skb in the end of this function. But when execute ieee80211_amsdu_aggregate() ->ieee80211_amsdu_realloc_pad()->pskb_expand_head(), the address of skb_shinfo(head)->frag_list will be changed. However, the ieee80211_amsdu_aggregate() not update frag_tail after call pskb_expand_head(). That will cause the second skb can't bind to the head skb appropriately.So we update the address of frag_tail to fix it. Fixes: 6e0456b5 ("mac80211: add A-MSDU tx support") Signed-off-by:
Chih-Kang Chang <gary.chang@realtek.com> Signed-off-by:
Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by:
Ping-Ke Shih <pkshih@realtek.com> Link: https://lore.kernel.org/r/20210830073240.12736-1-pkshih@realtek.com [reword comment] Signed-off-by:
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Felix Fietkau authored
This reverts commit d3333223 ("mac80211: do not use low data rates for data frames with no ack flag"). Returning false early in rate_control_send_low breaks sending broadcast packets, since rate control will not select a rate for it. Before re-introducing a fixed version of this patch, we should probably also make some changes to rate control to be more conservative in selecting rates for no-ack packets and also prevent using probing rates on them, since we won't get any feedback. Fixes: d3333223 ("mac80211: do not use low data rates for data frames with no ack flag") Signed-off-by:
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- 22 Sep, 2021 3 commits
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Geert Uytterhoeven authored
Commit f8ade8dd ("xsurf100: drop include of lib8390.c") accidentally changed init/main.c. Revert that part. Fixes: f8ade8dd ("xsurf100: drop include of lib8390.c") Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Konrad Rzeszutek Wilk authored
Konrad's new job role is putting a serious cramp on him being a responsive maintainer and as such he is handing off the reins to Juergen, Roger, and Stefano. Thank you! Acked-by:
Juergen Gross <jgross@suse.com> Acked-by:
Roger Pau Monné <roger.pau@citrix.com> Acked-by:
Stefano Stabellini <sstabellini@kernel.org> Signed-off-by:
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by:
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Konrad Rzeszutek Wilk authored
Konrad's new job role is putting a serious cramp on him being a responsive maintainer and as such he is handing off the reins to Christoph Hellwig. Thank you! Acked-by:
Christoph Hellwig <hch@infradead.org> Signed-off-by:
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