netdev - [PATCH bpf v2 0/2] bpf: Fix [::] -> [::1] rewrite in sys

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: <cover.1546592666.git.rdna@fb.com>
Date:   Fri, 4 Jan 2019 01:07:06 -0800
From:   Andrey Ignatov <rdna@...com>
To:     <netdev@...r.kernel.org>
CC:     Andrey Ignatov <rdna@...com>, <ast@...nel.org>,
        <daniel@...earbox.net>, <nitin.rawat@...el.com>,
        <kernel-team@...com>
Subject: [PATCH bpf v2 0/2] bpf: Fix [::] -> [::1] rewrite in sys_sendmsg

The patch set fixes BSD'ism in sys_sendmsg to rewrite unspecified
destination IPv6 for unconnected UDP sockets in sys_sendmsg with [::1] in
case when either CONFIG_CGROUP_BPF is enabled or when sys_sendmsg BPF hook
sets destination IPv6 to [::].

Patch 1 is the fix and provides more details.
Patch 2 adds two test cases to verify the fix.

v1->v2:
* Fix compile error in patch 1.

Andrey Ignatov (2):
  bpf: Fix [::] -> [::1] rewrite in sys_sendmsg
  selftests/bpf: Test [::] -> [::1] rewrite in sys_sendmsg in
    test_sock_addr

 net/ipv6/udp.c                               |  8 +--
 tools/testing/selftests/bpf/test_sock_addr.c | 53 ++++++++++++++++++--
 2 files changed, 54 insertions(+), 7 deletions(-)

-- 
2.17.1