Re: [PATCH] ubsan: Fix incorrect hand-side used in handle

From: Kees Cook
Date: Mon Jun 02 2025 - 14:07:13 EST


On Mon, 02 Jun 2025 23:38:41 +0800, Junhui Pei wrote:
> __ubsan_handle_divrem_overflow() incorrectly uses the RHS to report.
> It always reports the same log: division of -1 by -1. But it should
> report division of LHS by -1.

Oops, this has been wrong for a long time! :) I've added the appropriate
Fixes tag.

Applied to for-linus/hardening, thanks!

[1/1] ubsan: Fix incorrect hand-side used in handle
https://git.kernel.org/kees/c/c50b612bef51

Take care,

--
Kees Cook