[v1, 0/2] Initialize Vector registers in the first-use trap

Palmer Dabbelt palmer at rivosinc.com
Tue Jul 4 07:42:55 PDT 2023


On Tue, 27 Jun 2023 01:55:53 +0000, Andy Chiu wrote:
> Before applying this series, We only initialize the space for saving
> Vector registers. This is not enough as Vector registers themselves also
> neeeded to be initialized before dropping back into userspace. Or, we
> may risk leaking a process's data left in Vector register to another
> process. This can be verified by only applying the second patch and
> running the test.
> 
> [...]

Applied, thanks!

[1/2] riscv: vector: clear V-reg in the first-use trap
      https://git.kernel.org/palmer/c/75b59f2a90aa
[2/2] selftests: Test RISC-V Vector's first-use handler
      https://git.kernel.org/palmer/c/5c93c4c72fbc

Best regards,
-- 
Palmer Dabbelt <palmer at rivosinc.com>




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