Re: [PATCH] i2c/designware: Fix an initialization issue

Hi Michael,

On Fri, Jun 27, 2025 at 10:35:11AM -0400, Michael J. Ruhl wrote:

The i2c_dw_xfer_init() function requires msgs and msg_write_idx from the dev context to be initialized.

amd_i2c_dw_xfer_quirk() inits msgs and msgs_num, but not msg_write_idx.

This could allow an out of bounds access (of msgs).

Initialize msg_write_idx before calling i2c_dw_xfer_init().

Reviewed-by: Andy Shevchenko andriy.shevchenko@linux.intel.com Fixes: 17631e8ca2d3 ("i2c: designware: Add driver support for AMD NAVI GPU") Cc: stable@vger.kernel.org Signed-off-by: Michael J. Ruhl michael.j.ruhl@intel.com

merged to i2c/i2c-host-fixes.

Thank you, Andi