linux-kernel - Re: [PATCH v4] riscv: Discard vector state on syscalls

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: <168860030759.22647.12460788590492187878.b4-ty@rivosinc.com>
Date:   Wed, 05 Jul 2023 16:38:27 -0700
From:   Palmer Dabbelt <palmer@...osinc.com>
To:     Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        linux-riscv@...ts.infradead.org, Andy Chiu <andy.chiu@...ive.com>,
        =C3=B6rn_T=C3=B6pel?= <bjorn@...nel.org>
Cc:     =C3=B6rn_T=C3=B6pel?= <bjorn@...osinc.com>,
        linux-kernel@...r.kernel.org, linux@...osinc.com,
        C3=A9mi_Denis-Courmont?= <remi@...lab.net>,
        Darius Rad <darius@...espec.com>,
        Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [PATCH v4] riscv: Discard vector state on syscalls


On Thu, 29 Jun 2023 16:22:28 +0200, Björn Töpel wrote:
> The RISC-V vector specification states:
>   Executing a system call causes all caller-saved vector registers
>   (v0-v31, vl, vtype) and vstart to become unspecified.
> 
> The vector registers are set to all 1s, vill is set (invalid), and the
> vector status is set to Dirty.
> 
> [...]

Applied, thanks!

[1/1] riscv: Discard vector state on syscalls
      https://git.kernel.org/palmer/c/9657e9b7d253

Best regards,
-- 
Palmer Dabbelt <palmer@...osinc.com>