Skip to content
  1. Mar 19, 2019
  3. Mar 18, 2019
    • Erik Hugne's avatar
      tipc: allow service ranges to be connect()'ed on RDM/DGRAM · ea239314
      Erik Hugne authored 
      We move the check that prevents connecting service ranges to after
the RDM/DGRAM check, and move address sanity control to a separate
function that also validates the service range.

Fixes: 23998835

 ("tipc: improve address sanity check in tipc_connect()")
Signed-off-by: default avatarErik Hugne <erik.hugne@gmail.com>
Signed-off-by: default avatarJon Maloy <jon.maloy@ericsson.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      ea239314
    • Randy Dunlap's avatar
      networking: fix snmp_counter.rst Doc. Warnings · 65e9a6d2
      Randy Dunlap authored 
      Fix documentation markup warnings in snmp_counter.rst:

Documentation/networking/snmp_counter.rst:416: WARNING: Title underline too short.
Documentation/networking/snmp_counter.rst:684: WARNING: Bullet list ends without a blank line; unexpected unindent.
Documentation/networking/snmp_counter.rst:693: WARNING: Title underline too short.
Documentation/networking/snmp_counter.rst:707: WARNING: Bullet list ends without a blank line; unexpected unindent.
Documentation/networking/snmp_counter.rst:712: WARNING: Bullet list ends without a blank line; unexpected unindent.
Documentation/networking/snmp_counter.rst:722: WARNING: Title underline too short.
Documentation/networking/snmp_counter.rst:733: WARNING: Bullet list ends without a blank line; unexpected unindent.
Documentation/networking/snmp_counter.rst:736: WARNING: Bullet list ends without a blank line; unexpected unindent.
Documentation/networking/snmp_counter.rst:739: WARNING: Bullet list ends without a blank line; unexpected unindent.

Fixes: 80cc4950 ("net: Add part of TCP counts explanations in snmp_counters.rst")
Fixes: 8e2ea53a ("add snmp counters document")
Fixes: a6c7c7aa

 ("net: add document for several snmp counters")

Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Cc: yupeng <yupeng0921@gmail.com>
      65e9a6d2
  5. Mar 17, 2019
  7. Mar 16, 2019
    • Naveen N. Rao's avatar
      powerpc: bpf: Fix generation of load/store DW instructions · 86be36f6
      Naveen N. Rao authored 
      Yauheni Kaliuta pointed out that PTR_TO_STACK store/load verifier test
was failing on powerpc64 BE, and rightfully indicated that the PPC_LD()
macro is not masking away the last two bits of the offset per the ISA,
resulting in the generation of 'lwa' instruction instead of the intended
'ld' instruction.

Segher also pointed out that we can't simply mask away the last two bits
as that will result in loading/storing from/to a memory location that
was not intended.

This patch addresses this by using ldx/stdx if the offset is not
word-aligned. We load the offset into a temporary register (TMP_REG_2)
and use that as the index register in a subsequent ldx/stdx. We fix
PPC_LD() macro to mask off the last two bits, but enhance PPC_BPF_LL()
and PPC_BPF_STL() to factor in the offset value and generate the proper
instruction sequence. We also convert all existing users of PPC_LD() and
PPC_STD() to use these macros. All existing uses of these macros have
been audited to ensure that TMP_REG_2 can be clobbered.

Fixes: 156d0e29

 ("powerpc/ebpf/jit: Implement JIT compiler for extended BPF")
Cc: stable@vger.kernel.org # v4.9+

Reported-by: default avatarYauheni Kaliuta <yauheni.kaliuta@redhat.com>
Signed-off-by: default avatarNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      86be36f6
    • Björn Töpel's avatar
      xsk: fix umem memory leak on cleanup · 044175a0
      Björn Töpel authored 
      When the umem is cleaned up, the task that created it might already be
gone. If the task was gone, the xdp_umem_release function did not free
the pages member of struct xdp_umem.

It turned out that the task lookup was not needed at all; The code was
a left-over when we moved from task accounting to user accounting [1].

This patch fixes the memory leak by removing the task lookup logic
completely.

[1] https://lore.kernel.org/netdev/20180131135356.19134-3-bjorn.topel@gmail.com/

Link: https://lore.kernel.org/netdev/c1cb2ca8-6a14-3980-8672-f3de0bb38dfd@suse.cz/
Fixes: c0c77d8f

 ("xsk: add user memory registration support sockopt")
Reported-by: default avatarJiri Slaby <jslaby@suse.cz>
Signed-off-by: default avatarBjörn Töpel <bjorn.topel@intel.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
      044175a0