[v3] Fix integer handling issues in k230_gsdma and k230_decomp_gzip

[PATCH v3 0/5] Fix integer handling issues in k230_gsdma and k230_decomp_gzip

Posted by Tao Ding 5 days, 10 hours ago

Hi, all

This series fixes integer overflow, truncation, and underflow issues
reported by Coverity in the K230 GZIP decompressor, its qtest, and GSDMA.
https://lore.kernel.org/qemu-devel/5fc57f49cea0ac3542128d0e2208edd6d7484f7e.camel@wdc.com/

Thanks.

The patchv1 series is posted in:
https://lore.kernel.org/qemu-devel/20261002140245.30214-1-dingtao0430@163.com/

Changes in v2->v3:
- Separate global and channel register handling to prevent unsigned address underflow 
  when calculating GSDMA channel offsets.

Tao Ding (5):
  hw/misc: fix calculating output address overflow in k230_decomp_gzip
  hw/misc: fix calculating input address overflow in k230_decomp_gzip
  hw/misc: use hwaddr for the k230_decomp_gzip input address
  qtest: fix k230_decomp_gzip test integer handling issues
  hw/dma: fix k230_gsdma integer handling issues

 hw/dma/k230_gsdma.c                 | 84 ++++++++++++++---------------
 hw/misc/k230_decomp_gzip.c          |  6 +--
 tests/qtest/k230-decomp-gzip-test.c |  2 +-
 3 files changed, 46 insertions(+), 46 deletions(-)


base-commit: 0a1ebd448b38afaa118597cbb633dbec24ef74d3
-- 
2.43.0

Re: [PATCH v3 0/5] Fix integer handling issues in k230_gsdma and k230_decomp_gzip

Posted by Alistair Francis 4 days, 21 hours ago

On Sun, 2026-10-18 at 22:10 +0800, Tao Ding wrote:
> Hi, all
> 
> This series fixes integer overflow, truncation, and underflow issues
> reported by Coverity in the K230 GZIP decompressor, its qtest, and
> GSDMA.
> https://lore.kernel.org/qemu-devel/5fc57f49cea0ac3542128d0e2208edd6d7484f7e.camel@wdc.com/
> 
> Thanks.
> 
> The patchv1 series is posted in:
> https://lore.kernel.org/qemu-devel/20261002140245.30214-1-dingtao0430@163.com/
> 
> Changes in v2->v3:
> - Separate global and channel register handling to prevent unsigned
> address underflow 
>   when calculating GSDMA channel offsets.
> 
> Tao Ding (5):
>   hw/misc: fix calculating output address overflow in
> k230_decomp_gzip
>   hw/misc: fix calculating input address overflow in k230_decomp_gzip
>   hw/misc: use hwaddr for the k230_decomp_gzip input address
>   qtest: fix k230_decomp_gzip test integer handling issues
>   hw/dma: fix k230_gsdma integer handling issues

Thanks!

Applied to riscv-to-apply.next

Alistair

> 
>  hw/dma/k230_gsdma.c                 | 84 ++++++++++++++-------------
> --
>  hw/misc/k230_decomp_gzip.c          |  6 +--
>  tests/qtest/k230-decomp-gzip-test.c |  2 +-
>  3 files changed, 46 insertions(+), 46 deletions(-)
> 
> 
> base-commit: 0a1ebd448b38afaa118597cbb633dbec24ef74d3