netdev - [PATCH bpf-next 0/4] bpf: fixes for lockdep and deadlock

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]

Date:   Tue, 29 Jan 2019 20:04:54 -0800
From:   Alexei Starovoitov <ast@...nel.org>
To:     <davem@...emloft.net>
CC:     <daniel@...earbox.net>, <peterz@...radead.org>,
        <edumazet@...gle.com>, <jannh@...gle.com>,
        <netdev@...r.kernel.org>, <kernel-team@...com>
Subject: [PATCH bpf-next 0/4] bpf: fixes for lockdep and deadlock

In addition to preempt_disable patch for socket filters
https://patchwork.ozlabs.org/patch/1032437/
the first three patches fix various lockdep false positives.
Last patch fixes potential deadlock in stackmap access from
tracing bpf prog and from syscall.

Alexei Starovoitov (3):
  bpf: fix lockdep false positive in percpu_freelist
  bpf: fix lockdep false positive in stackmap
  bpf: fix lockdep false positive in bpf_prog_register

Martin KaFai Lau (1):
  bpf: Fix syscall's stackmap lookup potential deadlock

 kernel/bpf/hashtab.c         |  4 ++--
 kernel/bpf/percpu_freelist.c | 41 +++++++++++++++++++++++++-----------
 kernel/bpf/percpu_freelist.h |  4 ++++
 kernel/bpf/stackmap.c        |  2 +-
 kernel/bpf/syscall.c         | 12 +++++++++--
 kernel/trace/bpf_trace.c     | 14 ++----------
 6 files changed, 48 insertions(+), 29 deletions(-)

-- 
2.20.0