pull-request: bpf 2018-08-29

pull-request: bpf 2018-08-29

[Daniel Borkmann]

Hi David,

The following pull-request contains BPF updates for your *net* tree.

The main changes are:

1) Fix a build error in sk_reuseport_convert_ctx_access() when
   compiling with clang which cannot resolve hweight_long() at
   build time inside the BUILD_BUG_ON() assertion, from Stefan.

2) Several fixes for BPF sockmap, four of them in getting the
   bpf_msg_pull_data() helper to work, one use after free case
   in bpf_tcp_close() and one refcount leak in bpf_tcp_recvmsg(),
   from Daniel.

3) Another fix for BPF sockmap where we misaccount sk_mem_uncharge()
   in the socket redirect error case from unwinding scatterlist
   twice, from John.

Please consider pulling these changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git

Thanks a lot!

----------------------------------------------------------------

The following changes since commit 53ae914d898e5dd5984d352d5fa0b23410f966a0:

  net/rds: Use rdma_read_gids to get connection SGID/DGID in IPv6 (2018-08-27 15:26:01 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git 

for you to fetch changes up to d65e6c80c6bb72ced46ce90dea4016d913a8ddd4:

  Merge branch 'bpf_msg_pull_data-fixes' (2018-08-29 10:47:18 -0700)

----------------------------------------------------------------
Alexei Starovoitov (1):
      Merge branch 'bpf_msg_pull_data-fixes'

Daniel Borkmann (6):
      bpf, sockmap: fix potential use after free in bpf_tcp_close
      bpf, sockmap: fix psock refcount leak in bpf_tcp_recvmsg
      bpf: fix several offset tests in bpf_msg_pull_data
      bpf: fix msg->data/data_end after sg shift repair in bpf_msg_pull_data
      bpf: fix shift upon scatterlist ring wrap-around in bpf_msg_pull_data
      bpf: fix sg shift repair start offset in bpf_msg_pull_data

John Fastabend (1):
      bpf: sockmap, decrement copied count correctly in redirect error case

Stefan Agner (1):
      bpf: fix build error with clang

 kernel/bpf/sockmap.c | 52 +++++++++++++++++++++++++---------------------------
 net/core/filter.c    | 52 +++++++++++++++++++++++++++++-----------------------
 2 files changed, 54 insertions(+), 50 deletions(-)

Re: pull-request: bpf 2018-08-29

[David Miller]

From: Daniel Borkmann <daniel@iogearbox.net>
Date: Wed, 29 Aug 2018 21:07:24 +0200

> The following pull-request contains BPF updates for your *net* tree.
> 
> The main changes are:
> 
> 1) Fix a build error in sk_reuseport_convert_ctx_access() when
>    compiling with clang which cannot resolve hweight_long() at
>    build time inside the BUILD_BUG_ON() assertion, from Stefan.
> 
> 2) Several fixes for BPF sockmap, four of them in getting the
>    bpf_msg_pull_data() helper to work, one use after free case
>    in bpf_tcp_close() and one refcount leak in bpf_tcp_recvmsg(),
>    from Daniel.
> 
> 3) Another fix for BPF sockmap where we misaccount sk_mem_uncharge()
>    in the socket redirect error case from unwinding scatterlist
>    twice, from John.
> 
> Please consider pulling these changes from:
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git

Pulled, thanks Daniel.