user/sven/linux.git/include/uapi, branch v5.13.1

userfaultfd: uapi: fix UFFDIO_CONTINUE ioctl request definition

2021-06-25T17:53:26Z

This ioctl request reads from uffdio_continue structure written by userspace which justifies _IOC_WRITE flag. It also writes back to that structure which justifies _IOC_READ flag. See NOTEs in include/uapi/asm-generic/ioctl.h for more information. Fixes: f619147104c8 ("userfaultfd: add UFFDIO_CONTINUE ioctl") Signed-off-by: Gleb Fotengauer-Malinovskiy Acked-by: Peter Xu Reviewed-by: Axel Rasmussen Reviewed-by: Dmitry V. Levin Signed-off-by: Linus Torvalds

Merge tag 'net-5.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-06-19T01:55:29Z

Pull networking fixes from Jakub Kicinski: "Networking fixes for 5.13-rc7, including fixes from wireless, bpf, bluetooth, netfilter and can. Current release - regressions: - mlxsw: spectrum_qdisc: Pass handle, not band number to find_class() to fix modifying offloaded qdiscs - lantiq: net: fix duplicated skb in rx descriptor ring - rtnetlink: fix regression in bridge VLAN configuration, empty info is not an error, bot-generated "fix" was not needed - libbpf: s/rx/tx/ typo on umem->rx_ring_setup_done to fix umem creation Current release - new code bugs: - ethtool: fix NULL pointer dereference during module EEPROM dump via the new netlink API - mlx5e: don't update netdev RQs with PTP-RQ, the special purpose queue should not be visible to the stack - mlx5e: select special PTP queue only for SKBTX_HW_TSTAMP skbs - mlx5e: verify dev is present in get devlink port ndo, avoid a panic Previous releases - regressions: - neighbour: allow NUD_NOARP entries to be force GCed - further fixes for fallout from reorg of WiFi locking (staging: rtl8723bs, mac80211, cfg80211) - skbuff: fix incorrect msg_zerocopy copy notifications - mac80211: fix NULL ptr deref for injected rate info - Revert "net/mlx5: Arm only EQs with EQEs" it may cause missed IRQs Previous releases - always broken: - bpf: more speculative execution fixes - netfilter: nft_fib_ipv6: skip ipv6 packets from any to link-local - udp: fix race between close() and udp_abort() resulting in a panic - fix out of bounds when parsing TCP options before packets are validated (in netfilter: synproxy, tc: sch_cake and mptcp) - mptcp: improve operation under memory pressure, add missing wake-ups - mptcp: fix double-lock/soft lookup in subflow_error_report() - bridge: fix races (null pointer deref and UAF) in vlan tunnel egress - ena: fix DMA mapping function issues in XDP - rds: fix memory leak in rds_recvmsg Misc: - vrf: allow larger MTUs - icmp: don't send out ICMP messages with a source address of 0.0.0.0 - cdc_ncm: switch to eth%d interface naming" * tag 'net-5.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (139 commits) net: ethernet: fix potential use-after-free in ec_bhf_remove selftests/net: Add icmp.sh for testing ICMP dummy address responses icmp: don't send out ICMP messages with a source address of 0.0.0.0 net: ll_temac: Avoid ndo_start_xmit returning NETDEV_TX_BUSY net: ll_temac: Fix TX BD buffer overwrite net: ll_temac: Add memory-barriers for TX BD access net: ll_temac: Make sure to free skb when it is completely used MAINTAINERS: add Guvenc as SMC maintainer bnxt_en: Call bnxt_ethtool_free() in bnxt_init_one() error path bnxt_en: Fix TQM fastpath ring backing store computation bnxt_en: Rediscover PHY capabilities after firmware reset cxgb4: fix wrong shift. mac80211: handle various extensible elements correctly mac80211: reset profile_periodicity/ema_ap cfg80211: avoid double free of PMSR request cfg80211: make certificate generation more robust mac80211: minstrel_ht: fix sample time check net: qed: Fix memcpy() overflow of qed_dcbx_params() net: cdc_eem: fix tx fixup skb leak net: hamradio: fix memory leak in mkiss_close ...

icmp: don't send out ICMP messages with a source address of 0.0.0.0

2021-06-18T19:13:24Z

When constructing ICMP response messages, the kernel will try to pick a suitable source address for the outgoing packet. However, if no IPv4 addresses are configured on the system at all, this will fail and we end up producing an ICMP message with a source address of 0.0.0.0. This can happen on a box routing IPv4 traffic via v6 nexthops, for instance. Since 0.0.0.0 is not generally routable on the internet, there's a good chance that such ICMP messages will never make it back to the sender of the original packet that the ICMP message was sent in response to. This, in turn, can create connectivity and PMTUd problems for senders. Fortunately, RFC7600 reserves a dummy address to be used as a source for ICMP messages (192.0.0.8/32), so let's teach the kernel to substitute that address as a last resort if the regular source address selection procedure fails. Below is a quick example reproducing this issue with network namespaces: ip netns add ns0 ip l add type veth peer netns ns0 ip l set dev veth0 up ip a add 10.0.0.1/24 dev veth0 ip a add fc00:dead:cafe:42::1/64 dev veth0 ip r add 10.1.0.0/24 via inet6 fc00:dead:cafe:42::2 ip -n ns0 l set dev veth0 up ip -n ns0 a add fc00:dead:cafe:42::2/64 dev veth0 ip -n ns0 r add 10.0.0.0/24 via inet6 fc00:dead:cafe:42::1 ip netns exec ns0 sysctl -w net.ipv4.icmp_ratelimit=0 ip netns exec ns0 sysctl -w net.ipv4.ip_forward=1 tcpdump -tpni veth0 -c 2 icmp & ping -w 1 10.1.0.1 > /dev/null tcpdump: verbose output suppressed, use -v[v]... for full protocol decode listening on veth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes IP 10.0.0.1 > 10.1.0.1: ICMP echo request, id 29, seq 1, length 64 IP 0.0.0.0 > 10.0.0.1: ICMP net 10.1.0.1 unreachable, length 92 2 packets captured 2 packets received by filter 0 packets dropped by kernel With this patch the above capture changes to: IP 10.0.0.1 > 10.1.0.1: ICMP echo request, id 31127, seq 1, length 64 IP 192.0.0.8 > 10.0.0.1: ICMP net 10.1.0.1 unreachable, length 92 Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-by: Juliusz Chroboczek Reviewed-by: David Ahern Signed-off-by: Toke Høiland-Jørgensen Signed-off-by: David S. Miller

Merge tag 'fixes_for_v5.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2021-06-17T16:49:48Z

Pull quota and fanotify fixes from Jan Kara: "A fixup finishing disabling of quotactl_path() syscall (I've missed archs using different way to declare syscalls) and a fix of an fd leak in error handling path of fanotify" * tag 'fixes_for_v5.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: quota: finish disable quotactl_path syscall fanotify: fix copy_event_to_user() fid error clean up

quota: finish disable quotactl_path syscall

2021-06-15T09:22:45Z

In commit 5b9fedb31e47 ("quota: Disable quotactl_path syscall") Jan Kara disabled quotactl_path syscall on several architectures. This commit disables it on all architectures using unified list of system calls: - arm64 - arc - csky - h8300 - hexagon - nds32 - nios2 - openrisc - riscv (32/64) CC: Jan Kara CC: Christian Brauner CC: Sascha Hauer Link: https://lore.kernel.org/lkml/20210512153621.n5u43jsytbik4yze@wittgenstein Link: https://lore.kernel.org/r/20210614153712.313707-1-marcin@juszkiewicz.com.pl Fixes: 5b9fedb31e47 ("quota: Disable quotactl_path syscall") Acked-by: Christian Brauner Signed-off-by: Marcin Juszkiewicz Signed-off-by: Jan Kara

Merge tag 'io_uring-5.13-2021-06-12' of git://git.kernel.dk/linux-block

2021-06-12T18:53:20Z

Pull io_uring fixes from Jens Axboe: "Just an API change for the registration changes that went into this release. Better to get it sorted out now than before it's too late" * tag 'io_uring-5.13-2021-06-12' of git://git.kernel.dk/linux-block: io_uring: add feature flag for rsrc tags io_uring: change registration/upd/rsrc tagging ABI

io_uring: add feature flag for rsrc tags

2021-06-10T22:33:51Z

Add IORING_FEAT_RSRC_TAGS indicating that io_uring supports a bunch of new IORING_REGISTER operations, in particular IORING_REGISTER_[FILES[,UPDATE]2,BUFFERS[2,UPDATE]] that support rsrc tagging, and also indicating implemented dynamic fixed buffer updates. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/9b995d4045b6c6b4ab7510ca124fd25ac2203af7.1623339162.git.asml.silence@gmail.com Signed-off-by: Jens Axboe

io_uring: change registration/upd/rsrc tagging ABI

2021-06-10T22:33:51Z

There are ABI moments about recently added rsrc registration/update and tagging that might become a nuisance in the future. First, IORING_REGISTER_RSRC[_UPD] hide different types of resources under it, so breaks fine control over them by restrictions. It works for now, but once those are wanted under restrictions it would require a rework. It was also inconvenient trying to fit a new resource not supporting all the features (e.g. dynamic update) into the interface, so better to return to IORING_REGISTER_* top level dispatching. Second, register/update were considered to accept a type of resource, however that's not a good idea because there might be several ways of registration of a single resource type, e.g. we may want to add non-contig buffers or anything more exquisite as dma mapped memory. So, remove IORING_RSRC_[FILE,BUFFER] out of the ABI, and place them internally for now to limit changes. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/9b554897a7c17ad6e3becc48dfed2f7af9f423d5.1623339162.git.asml.silence@gmail.com Signed-off-by: Jens Axboe

Merge tag 'net-5.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-06-05T01:25:39Z

Pull networking fixes from Jakub Kicinski: "Networking fixes, including fixes from bpf, wireless, netfilter and wireguard trees. The bpf vs lockdown+audit fix is the most notable. Things haven't slowed down just yet, both in terms of regressions in current release and largish fixes for older code, but we usually see a slowdown only after -rc5. Current release - regressions: - virtio-net: fix page faults and crashes when XDP is enabled - mlx5e: fix HW timestamping with CQE compression, and make sure they are only allowed to coexist with capable devices - stmmac: - fix kernel panic due to NULL pointer dereference of mdio_bus_data - fix double clk unprepare when no PHY device is connected Current release - new code bugs: - mt76: a few fixes for the recent MT7921 devices and runtime power management Previous releases - regressions: - ice: - track AF_XDP ZC enabled queues in bitmap to fix copy mode Tx - fix allowing VF to request more/less queues via virtchnl - correct supported and advertised autoneg by using PHY capabilities - allow all LLDP packets from PF to Tx - kbuild: quote OBJCOPY var to avoid a pahole call break the build Previous releases - always broken: - bpf, lockdown, audit: fix buggy SELinux lockdown permission checks - mt76: address the recent FragAttack vulnerabilities not covered by generic fixes - ipv6: fix KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions - Bluetooth: - fix the erroneous flush_work() order, to avoid double free - use correct lock to prevent UAF of hdev object - nfc: fix NULL ptr dereference in llcp_sock_getname() after failed connect - ieee802154: multiple fixes to error checking and return values - igb: fix XDP with PTP enabled - intel: add correct exception tracing for XDP - tls: fix use-after-free when TLS offload device goes down and back up - ipvs: ignore IP_VS_SVC_F_HASHED flag when adding service - netfilter: nft_ct: skip expectations for confirmed conntrack - mptcp: fix falling back to TCP in presence of out of order packets early in connection lifetime - wireguard: switch from O(n) to a O(1) algorithm for maintaining peers, fixing stalls and a large memory leak in the process Misc: - devlink: correct VIRTUAL port to not have phys_port attributes - Bluetooth: fix VIRTIO_ID_BT assigned number - net: return the correct errno code ENOBUF -> ENOMEM - wireguard: - peer: allocate in kmem_cache saving 25% on peer memory - do not use -O3" * tag 'net-5.13-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (91 commits) cxgb4: avoid link re-train during TC-MQPRIO configuration sch_htb: fix refcount leak in htb_parent_to_leaf_offload wireguard: allowedips: free empty intermediate nodes when removing single node wireguard: allowedips: allocate nodes in kmem_cache wireguard: allowedips: remove nodes in O(1) wireguard: allowedips: initialize list head in selftest wireguard: peer: allocate in kmem_cache wireguard: use synchronize_net rather than synchronize_rcu wireguard: do not use -O3 wireguard: selftests: make sure rp_filter is disabled on vethc wireguard: selftests: remove old conntrack kconfig value virtchnl: Add missing padding to virtchnl_proto_hdrs ice: Allow all LLDP packets from PF to Tx ice: report supported and advertised autoneg using PHY capabilities ice: handle the VF VSI rebuild failure ice: Fix VFR issues for AVF drivers that expect ATQLEN cleared ice: Fix allowing VF to request more/less queues via virtchnl virtio-net: fix for skb_over_panic inside big mode ipv6: Fix KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions fib: Return the correct errno code ...

Merge tag 'for-net-2021-06-03' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth

2021-06-03T22:32:21Z

bluetooth pull request for net: - Fixes UAF and CVE-2021-3564 - Fix VIRTIO_ID_BT to use an unassigned ID - Fix firmware loading on some Intel Controllers Signed-off-by: David S. Miller