1. 17 May, 2018 2 commits
  2. 16 May, 2018 15 commits
  3. 15 May, 2018 3 commits
  4. 14 May, 2018 8 commits
    • Eric Biggers's avatar
      net/smc: check for missing nlattrs in SMC_PNETID messages · d49baa7e
      Eric Biggers authored
      It's possible to crash the kernel in several different ways by sending
      messages to the SMC_PNETID generic netlink family that are missing the
      expected attributes:
      
      - Missing SMC_PNETID_NAME => null pointer dereference when comparing
        names.
      - Missing SMC_PNETID_ETHNAME => null pointer dereference accessing
        smc_pnetentry::ndev.
      - Missing SMC_PNETID_IBNAME => null pointer dereference accessing
        smc_pnetentry::smcibdev.
      - Missing SMC_PNETID_IBPORT => out of bounds array access to
        smc_ib_device::pattr[-1].
      
      Fix it by validating that all expected attributes are present and that
      SMC_PNETID_IBPORT is nonzero.
      
      Reported-by: syzbot+5cd61039dc9b8bfa6e47@syzkaller.appspotmail.com
      Fixes: 6812baab ("smc: establish pnet table management")
      Cc: <stable@vger.kernel.org> # v4.11+
      Signed-off-by: default avatarEric Biggers <ebiggers@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d49baa7e
    • Tarick Bedeir's avatar
      net/mlx4_core: Fix error handling in mlx4_init_port_info. · 57f6f99f
      Tarick Bedeir authored
      Avoid exiting the function with a lingering sysfs file (if the first
      call to device_create_file() fails while the second succeeds), and avoid
      calling devlink_port_unregister() twice.
      
      In other words, either mlx4_init_port_info() succeeds and returns zero, or
      it fails, returns non-zero, and requires no cleanup.
      
      Fixes: 096335b3 ("mlx4_core: Allow dynamic MTU configuration for IB ports")
      Signed-off-by: default avatarTarick Bedeir <tarick@google.com>
      Reviewed-by: default avatarLeon Romanovsky <leonro@mellanox.com>
      Reviewed-by: default avatarTariq Toukan <tariqt@mellanox.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      57f6f99f
    • Jason Wang's avatar
      tun: fix use after free for ptr_ring · b196d88a
      Jason Wang authored
      We used to initialize ptr_ring during TUNSETIFF, this is because its
      size depends on the tx_queue_len of netdevice. And we try to clean it
      up when socket were detached from netdevice. A race were spotted when
      trying to do uninit during a read which will lead a use after free for
      pointer ring. Solving this by always initialize a zero size ptr_ring
      in open() and do resizing during TUNSETIFF, and then we can safely do
      cleanup during close(). With this, there's no need for the workaround
      that was introduced by commit 4df0bfc7 ("tun: fix a memory leak
      for tfile->tx_array").
      
      Reported-by: syzbot+e8b902c3c3fadf0a9dba@syzkaller.appspotmail.com
      Cc: Eric Dumazet <eric.dumazet@gmail.com>
      Cc: Cong Wang <xiyou.wangcong@gmail.com>
      Cc: Michael S. Tsirkin <mst@redhat.com>
      Fixes: 1576d986 ("tun: switch to use skb array for tx")
      Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
      Acked-by: default avatarMichael S. Tsirkin <mst@redhat.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b196d88a
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf · 9d6b4bfb
      David S. Miller authored
      Daniel Borkmann says:
      
      ====================
      pull-request: bpf 2018-05-14
      
      The following pull-request contains BPF updates for your *net* tree.
      
      The main changes are:
      
      1) Fix nfp to allow zero-length BPF capabilities, meaning the nfp
         capability parsing loop will otherwise exit early if the last
         capability is zero length and therefore driver will fail to probe
         with an error such as:
      
           nfp: BPF capabilities left after parsing, parsed:92 total length:100
           nfp: invalid BPF capabilities at offset:92
      
         Fix from Jakub.
      
      2) libbpf's bpf_object__open() may return IS_ERR_OR_NULL() and not
         just an error. Fix libbpf's bpf_prog_load_xattr() to handle that
         case as well, also from Jakub.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      9d6b4bfb
    • David S. Miller's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf · 4f6b15c3
      David S. Miller authored
      Pablo Neira Ayuso says:
      
      ====================
      Netfilter/IPVS fixes for net
      
      The following patchset contains Netfilter/IPVS fixes for your net tree,
      they are:
      
      1) Fix handling of simultaneous open TCP connection in conntrack,
         from Jozsef Kadlecsik.
      
      2) Insufficient sanitify check of xtables extension names, from
         Florian Westphal.
      
      3) Skip unnecessary synchronize_rcu() call when transaction log
         is already empty, from Florian Westphal.
      
      4) Incorrect destination mac validation in ebt_stp, from Stephen
         Hemminger.
      
      5) xtables module reference counter leak in nft_compat, from
         Florian Westphal.
      
      6) Incorrect connection reference counting logic in IPVS
         one-packet scheduler, from Julian Anastasov.
      
      7) Wrong stats for 32-bits CPU in IPVS, also from Julian.
      
      8) Calm down sparse error in netfilter core, also from Florian.
      
      9) Use nla_strlcpy to fix compilation warning in nfnetlink_acct
         and nfnetlink_cthelper, again from Florian.
      
      10) Missing module alias in icmp and icmp6 xtables extensions,
          from Florian Westphal.
      
      11) Base chain statistics in nf_tables may be unset/null, from Florian.
      
      12) Fix handling of large matchinfo size in nft_compat, this includes
          one preparation for before this fix. From Florian.
      
      13) Fix bogus EBUSY error when deleting chains due to incorrect reference
          counting from the preparation phase of the two-phase commit protocol.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      4f6b15c3
    • Michal Kalderon's avatar
      qede: Fix ref-cnt usage count · 91dfd02b
      Michal Kalderon authored
      Rebooting while qedr is loaded with a VLAN interface present
      results in unregister_netdevice waiting for the usage count
      to become free.
      The fix is that rdma devices should be removed before unregistering
      the netdevice, to assure all references to ndev are decreased.
      
      Fixes: cee9fbd8 ("qede: Add qedr framework")
      Signed-off-by: default avatarAriel Elior <ariel.elior@cavium.com>
      Signed-off-by: default avatarMichal Kalderon <michal.kalderon@cavium.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      91dfd02b
    • Christoph Hellwig's avatar
      3c59x: convert to generic DMA API · 55c82617
      Christoph Hellwig authored
      This driver supports EISA devices in addition to PCI devices, and relied
      on the legacy behavior of the pci_dma* shims to pass on a NULL pointer
      to the DMA API, and the DMA API being able to handle that.  When the
      NULL forwarding broke the EISA support got broken.  Fix this by converting
      to the DMA API instead of the legacy PCI shims.
      
      Fixes: 4167b2ad ("PCI: Remove NULL device handling from PCI DMA API")
      Reported-by: default avatartedheadster <tedheadster@gmail.com>
      Tested-by: default avatartedheadster <tedheadster@gmail.com>
      Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      55c82617
    • Willem de Bruijn's avatar
      packet: in packet_snd start writing at link layer allocation · b84bbaf7
      Willem de Bruijn authored
      Packet sockets allow construction of packets shorter than
      dev->hard_header_len to accommodate protocols with variable length
      link layer headers. These packets are padded to dev->hard_header_len,
      because some device drivers interpret that as a minimum packet size.
      
      packet_snd reserves dev->hard_header_len bytes on allocation.
      SOCK_DGRAM sockets call skb_push in dev_hard_header() to ensure that
      link layer headers are stored in the reserved range. SOCK_RAW sockets
      do the same in tpacket_snd, but not in packet_snd.
      
      Syzbot was able to send a zero byte packet to a device with massive
      116B link layer header, causing padding to cross over into skb_shinfo.
      Fix this by writing from the start of the llheader reserved range also
      in the case of packet_snd/SOCK_RAW.
      
      Update skb_set_network_header to the new offset. This also corrects
      it for SOCK_DGRAM, where it incorrectly double counted reserve due to
      the skb_push in dev_hard_header.
      
      Fixes: 9ed988cd ("packet: validate variable length ll headers")
      Reported-by: syzbot+71d74a5406d02057d559@syzkaller.appspotmail.com
      Signed-off-by: default avatarWillem de Bruijn <willemb@google.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      b84bbaf7
  5. 13 May, 2018 1 commit
  6. 11 May, 2018 11 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · 4bc87198
      Linus Torvalds authored
      Pull networking fixes from David Miller:
      
       1) Verify lengths of keys provided by the user is AF_KEY, from Kevin
          Easton.
      
       2) Add device ID for BCM89610 PHY. Thanks to Bhadram Varka.
      
       3) Add Spectre guards to some ATM code, courtesy of Gustavo A. R.
          Silva.
      
       4) Fix infinite loop in NSH protocol code. To Eric Dumazet we are most
          grateful for this fix.
      
       5) Line up /proc/net/netlink headers properly. This fix from YU Bo, we
          do appreciate.
      
       6) Use after free in TLS code. Once again we are blessed by the
          honorable Eric Dumazet with this fix.
      
       7) Fix regression in TLS code causing stalls on partial TLS records.
          This fix is bestowed upon us by Andrew Tomt.
      
       8) Deal with too small MTUs properly in LLC code, another great gift
          from Eric Dumazet.
      
       9) Handle cached route flushing properly wrt. MTU locking in ipv4, to
          Hangbin Liu we give thanks for this.
      
      10) Fix regression in SO_BINDTODEVIC handling wrt. UDP socket demux.
          Paolo Abeni, he gave us this.
      
      11) Range check coalescing parameters in mlx4 driver, thank you Moshe
          Shemesh.
      
      12) Some ipv6 ICMP error handling fixes in rxrpc, from our good brother
          David Howells.
      
      13) Fix kexec on mlx5 by freeing IRQs in shutdown path. Daniel Juergens,
          you're the best!
      
      14) Don't send bonding RLB updates to invalid MAC addresses. Debabrata
          Benerjee saved us!
      
      15) Uh oh, we were leaking in udp_sendmsg and ping_v4_sendmsg. The ship
          is now water tight, thanks to Andrey Ignatov.
      
      16) IPSEC memory leak in ixgbe from Colin Ian King, man we've got holes
          everywhere!
      
      17) Fix error path in tcf_proto_create, Jiri Pirko what would we do
          without you!
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (92 commits)
        net sched actions: fix refcnt leak in skbmod
        net: sched: fix error path in tcf_proto_create() when modules are not configured
        net sched actions: fix invalid pointer dereferencing if skbedit flags missing
        ixgbe: fix memory leak on ipsec allocation
        ixgbevf: fix ixgbevf_xmit_frame()'s return type
        ixgbe: return error on unsupported SFP module when resetting
        ice: Set rq_last_status when cleaning rq
        ipv4: fix memory leaks in udp_sendmsg, ping_v4_sendmsg
        mlxsw: core: Fix an error handling path in 'mlxsw_core_bus_device_register()'
        bonding: send learning packets for vlans on slave
        bonding: do not allow rlb updates to invalid mac
        net/mlx5e: Err if asked to offload TC match on frag being first
        net/mlx5: E-Switch, Include VF RDMA stats in vport statistics
        net/mlx5: Free IRQs in shutdown path
        rxrpc: Trace UDP transmission failure
        rxrpc: Add a tracepoint to log ICMP/ICMP6 and error messages
        rxrpc: Fix the min security level for kernel calls
        rxrpc: Fix error reception on AF_INET6 sockets
        rxrpc: Fix missing start of call timeout
        qed: fix spelling mistake: "taskelt" -> "tasklet"
        ...
      4bc87198
    • Linus Torvalds's avatar
      Merge tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs · a1f45efb
      Linus Torvalds authored
      Pull NFS client fixes from Anna Schumaker:
       "These patches fix both a possible corruption during NFSoRDMA MR
        recovery, and a sunrpc tracepoint crash.
      
        Additionally, Trond has a new email address to put in the MAINTAINERS
        file"
      
      * tag 'nfs-for-4.17-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
        Change Trond's email address in MAINTAINERS
        sunrpc: Fix latency trace point crashes
        xprtrdma: Fix list corruption / DMAR errors during MR recovery
      a1f45efb
    • Roman Mashak's avatar
      net sched actions: fix refcnt leak in skbmod · a52956df
      Roman Mashak authored
      When application fails to pass flags in netlink TLV when replacing
      existing skbmod action, the kernel will leak refcnt:
      
      $ tc actions get action skbmod index 1
      total acts 0
      
              action order 0: skbmod pipe set smac 00:11:22:33:44:55
               index 1 ref 1 bind 0
      
      For example, at this point a buggy application replaces the action with
      index 1 with new smac 00:aa:22:33:44:55, it fails because of zero flags,
      however refcnt gets bumped:
      
      $ tc actions get actions skbmod index 1
      total acts 0
      
              action order 0: skbmod pipe set smac 00:11:22:33:44:55
               index 1 ref 2 bind 0
      $
      
      Tha patch fixes this by calling tcf_idr_release() on existing actions.
      
      Fixes: 86da71b5 ("net_sched: Introduce skbmod action")
      Signed-off-by: default avatarRoman Mashak <mrv@mojatatu.com>
      Acked-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      a52956df
    • Linus Torvalds's avatar
      Merge tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client · ac428036
      Linus Torvalds authored
      Pull ceph fixes from Ilya Dryomov:
       "These patches fix two long-standing bugs in the DIO code path, one of
        which is a crash trivially triggerable with splice()"
      
      * tag 'ceph-for-4.17-rc5' of git://github.com/ceph/ceph-client:
        ceph: fix iov_iter issues in ceph_direct_read_write()
        libceph: add osd_req_op_extent_osd_data_bvecs()
        ceph: fix rsize/wsize capping in ceph_direct_read_write()
      ac428036
    • Jiri Pirko's avatar
      net: sched: fix error path in tcf_proto_create() when modules are not configured · d68d75fd
      Jiri Pirko authored
      In case modules are not configured, error out when tp->ops is null
      and prevent later null pointer dereference.
      
      Fixes: 33a48927 ("sched: push TC filter protocol creation into a separate function")
      Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
      Acked-by: default avatarCong Wang <xiyou.wangcong@gmail.com>
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      d68d75fd
    • Linus Torvalds's avatar
      Merge tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh · 3f5f8596
      Linus Torvalds authored
      Pull arch/sh fixes from Rich Felker:
       "Fixes for critical regressions and a build failure.
      
        The regressions were introduced in 4.15 and 4.17-rc1 and prevented
        booting on affected systems"
      
      * tag 'sh-for-4.17-fixes' of git://git.libc.org/linux-sh:
        sh: switch to NO_BOOTMEM
        sh: mm: Fix unprotected access to struct device
        sh: fix build failure for J2 cpu with SMP disabled
      3f5f8596
    • Linus Torvalds's avatar
      Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 7404bc27
      Linus Torvalds authored
      Pull arm64 fixes from Will Deacon:
       "There's a small memblock accounting problem when freeing the initrd
        and a Spectre-v2 mitigation for NVIDIA Denver CPUs which just requires
        a match on the CPU ID register.
      
        Summary:
      
         - Mitigate Spectre-v2 for NVIDIA Denver CPUs
      
         - Free memblocks corresponding to freed initrd area"
      
      * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
        arm64: capabilities: Add NVIDIA Denver CPU to bp_harden list
        arm64: Add MIDR encoding for NVIDIA CPUs
        arm64: To remove initrd reserved area entry from memblock
      7404bc27
    • Linus Torvalds's avatar
      Merge tag 'powerpc-4.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 5c6b5460
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
       "One fix for an actual regression, the change to the SYSCALL_DEFINE
        wrapper broke FTRACE_SYSCALLS for us due to a name mismatch. There's
        also another commit to the same code to make sure we match all our
        syscalls with various prefixes.
      
        And then just one minor build fix, and the removal of an unused
        variable that was removed and then snuck back in due to some rebasing.
      
        Thanks to: Naveen N. Rao"
      
      * tag 'powerpc-4.17-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/pseries: Fix CONFIG_NUMA=n build
        powerpc/trace/syscalls: Update syscall name matching logic to account for ppc_ prefix
        powerpc/trace/syscalls: Update syscall name matching logic
        powerpc/64: Remove unused paca->soft_enabled
      5c6b5460
    • Linus Torvalds's avatar
      Merge tag 'trace-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace · c110a8b7
      Linus Torvalds authored
      Pull tracing fix from Steven Rostedt:
       "Working on some new updates to trace filtering, I noticed that the
        regex_match_front() test was updated to be limited to the size of the
        pattern instead of the full test string.
      
        But as the test string is not guaranteed to be nul terminated, it
        still needs to consider the size of the test string"
      
      * tag 'trace-v4.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
        tracing: Fix regex_match_front() to not over compare the test string
      c110a8b7
    • David S. Miller's avatar
      Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue · f4d641a2
      David S. Miller authored
      Jeff Kirsher says:
      
      ====================
      Intel Wired LAN Driver Updates 2018-05-11
      
      This series contains fixes to the ice, ixgbe and ixgbevf drivers.
      
      Jeff Shaw provides a fix to ensure rq_last_status gets set, whether or
      not the hardware responds with an error in the ice driver.
      
      Emil adds a check for unsupported module during the reset routine for
      ixgbe.
      
      Luc Van Oostenryck fixes ixgbevf_xmit_frame() where it was not using the
      correct return value (int).
      
      Colin Ian King fixes a potential resource leak in ixgbe, where we were
      not freeing ipsec in our cleanup path.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f4d641a2
    • David S. Miller's avatar
      Merge tag 'rxrpc-fixes-20180510' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs · f0100891
      David S. Miller authored
      David Howells says:
      
      ====================
      rxrpc: Fixes
      
      Here are three fixes for AF_RXRPC and two tracepoints that were useful for
      finding them:
      
       (1) Fix missing start of expect-Rx-by timeout on initial packet
           transmission so that calls will time out if the peer doesn't respond.
      
       (2) Fix error reception on AF_INET6 sockets by using the correct family of
           sockopts on the UDP transport socket.
      
       (3) Fix setting the minimum security level on kernel calls so that they
           can be encrypted.
      
       (4) Add a tracepoint to log ICMP/ICMP6 and other error reports from the
           transport socket.
      
       (5) Add a tracepoint to log UDP sendmsg failure so that we can find out if
           transmission failure occurred on the UDP socket.
      ====================
      Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      f0100891