netdev - [bpf PATCH 0/3] BPF, a couple sockmap fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20180411235230.19135.63857.stgit@john-Precision-Tower-5810>
Date:   Wed, 11 Apr 2018 16:56:10 -0700
From:   John Fastabend <john.fastabend@...il.com>
To:     ast@...nel.org, daniel@...earbox.net
Cc:     netdev@...r.kernel.org
Subject: [bpf PATCH 0/3] BPF, a couple sockmap fixes

While testing sockmap with more programs (besides our test programs)
I found a couple issues.

The attached series fixes an issue where pinned maps were not
working correctly, blocking sockets returned zero, and an error
path that when the sock hit an out of memory case resulted in a
double page_put() while doing ingress redirects.

See individual patches for more details.

Thanks,
John

---

John Fastabend (3):
      bpf: sockmap, map_release does not hold refcnt for pinned maps
      bpf: sockmap, sk_wait_event needed to handle blocking cases
      bpf: sockmap, fix double put_page on ENOMEM error in redirect path

 include/linux/bpf.h  |    3 +++
 kernel/bpf/sockmap.c |   51 ++++++++++++++++++++++++++++++++++++++++++++++----
 kernel/bpf/syscall.c |   10 +++++++++-
 3 files changed, 59 insertions(+), 5 deletions(-)

--