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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Tue, 17 Mar 2020 21:08:04 +0100
From:   Daniel Borkmann <>
To:     Martin KaFai Lau <>,
Cc:     Alexei Starovoitov <>,,
Subject: Re: [PATCH v3 bpf] bpf: Sanitize the bpf_struct_ops tcp-cc name

On 3/14/20 2:02 AM, Martin KaFai Lau wrote:
> The bpf_struct_ops tcp-cc name should be sanitized in order to
> avoid problematic chars (e.g. whitespaces).
> This patch reuses the bpf_obj_name_cpy() for accepting the same set
> of characters in order to keep a consistent bpf programming experience.
> A "size" param is added.  Also, the strlen is returned on success so
> that the caller (like the bpf_tcp_ca here) can error out on empty name.
> The existing callers of the bpf_obj_name_cpy() only need to change the
> testing statement to "if (err < 0)".  For all these existing callers,
> the err will be overwritten later, so no extra change is needed
> for the new strlen return value.
> v3:
> - reverse xmas tree style
> v2:
> - Save the orig_src to avoid "end - size" (Andrii)
> Fixes: 0baf26b0fcd7 ("bpf: tcp: Support tcp_congestion_ops in bpf")
> Acked-by: Andrii Nakryiko <>
> Signed-off-by: Martin KaFai Lau <>

Applied, thanks!

Powered by blists - more mailing lists