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] [thread-next>] [day] [month] [year] [list]
Date:   Tue, 2 Nov 2021 10:25:10 +0100
From:   Miklos Szeredi <>
To:     Lorenz Bauer <>
Cc:     Al Viro <>,
        Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Andrii Nakryiko <>,
        Miklos Szeredi <>,
        Greg Kroah-Hartman <>,,,
        network dev <>, bpf <>
Subject: Re: [PATCH bpf-next v3 2/4] libfs: support RENAME_EXCHANGE in simple_rename()

On Thu, 28 Oct 2021 at 11:48, Lorenz Bauer <> wrote:
> Allow atomic exchange via RENAME_EXCHANGE when using simple_rename.
> This affects binderfs, ramfs, hubetlbfs and bpffs.

Ramfs and hugetlbfs are generic enough; those seem safe.

Binderfs: I have no idea what this does; binderfs_rename() should
probably error out on RENAME_EXCHANGE for now, or an explicit ack from
the maintainers.

Bpffs is your baby...


Powered by blists - more mailing lists