netdev - [PATCH bpf v4 0/2] sockmap fix for KASAN_VMALLOC and af

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: <20231129012557.95371-1-john.fastabend@gmail.com>
Date: Tue, 28 Nov 2023 17:25:55 -0800
From: John Fastabend <john.fastabend@...il.com>
To: martin.lau@...nel.org,
	jakub@...udflare.com
Cc: john.fastabend@...il.com,
	bpf@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH bpf v4 0/2] sockmap fix for KASAN_VMALLOC and af_unix

The af_unix tests in sockmap_listen causes a splat from KASAN_VMALLOC.
Fix it here and include an extra test to catch case where both pairs
of the af_unix socket are included in a BPF sockmap.

Also it seems the test infra is not passing type through correctly when
testing unix_inet_redir_to_connected. Unfortunately, the simple fix
also caused some CI tests to fail so investigating that now.

v4: forgot to commit typo fix add that now (CI build failed)
v3: drop unnecessary assignment (Martin) and rebase on latest selftests.
v2: drop changes to dgram side its fine per Jakub's point it graps a
    reference on the peer socket from each sendmsg.

John Fastabend (2):
  bpf: sockmap, af_unix stream sockets need to hold ref for pair sock
  bpf: sockmap, add af_unix test with both sockets in map

 include/linux/skmsg.h                         |  1 +
 include/net/af_unix.h                         |  1 +
 net/core/skmsg.c                              |  2 +
 net/unix/af_unix.c                            |  2 -
 net/unix/unix_bpf.c                           |  5 ++
 .../selftests/bpf/prog_tests/sockmap_listen.c | 51 +++++++++++++++----
 .../selftests/bpf/progs/test_sockmap_listen.c |  7 +++
 7 files changed, 56 insertions(+), 13 deletions(-)

-- 
2.33.0