Re: [hackers] [PATCH] dwm: Fix heap buffer overflow in getatomprop

From: Chris Down <chris_AT_chrisdown.name>
Date: Wed, 14 Jan 2026 15:03:01 +0800

You're right! I missed that dl is aliased and gets overwritten by
bytes_after_return (which should be 0 anyway), which is why it appears to fix
the bug with the test program. So it's safe, but a little too safe ;-)

I've sent a follow-up patch that separates the variables to fix the logic.
Thanks for catching that.
Received on Wed Jan 14 2026 - 08:03:01 CET