linux-kernel - Re: [PATCH -next v2] fs-verity: Use struct_size() helper in enable

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

Message-ID: <YoW0HG+Nbg681yWL@sol.localdomain>
Date:   Wed, 18 May 2022 20:06:04 -0700
From:   Eric Biggers <ebiggers@...nel.org>
To:     Zhang Jianhua <chris.zjh@...wei.com>
Cc:     tytso@....edu, linux-fscrypt@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next v2] fs-verity: Use struct_size() helper in
 enable_verity()

On Thu, May 19, 2022 at 10:24:50AM +0800, Zhang Jianhua wrote:
> Also, address the following sparse warning:
> fs/verity/enable.c:205:28: warning: using sizeof on a flexible structure

How can I reproduce this warning?  I am using the latest version of sparse, and
I don't see any of these warnings you're reporting.

$ sparse --version
v0.6.4
$ make C=2 fs/verity/
  CHECK   scripts/mod/empty.c
  CALL    scripts/checksyscalls.sh
  CALL    scripts/atomic/check-atomics.sh
  DESCEND objtool
  CHECK   fs/verity/enable.c
  CHECK   fs/verity/hash_algs.c
  CHECK   fs/verity/init.c
  CHECK   fs/verity/measure.c
  CHECK   fs/verity/open.c
  CHECK   fs/verity/read_metadata.c
  CHECK   fs/verity/verify.c
  CHECK   fs/verity/signature.c

- Eric