ariel-miculas

At this point, only Michael Ellerman could have this evidence in his mailbox. I've switched companies since then and unfortunately I don't have the private email exchange which happened between us (I've emailed him from my corporate email address).

This is not true. I've sent subsequent patches to the PowerPC maintainer in private, there was no practical reason why he couldn't work with me instead of implementing his own version.

see https://news.ycombinator.com/item?id=37692883

See https://news.ycombinator.com/item?id=37692883

1. As I said in the original thread:

  There is already a check at the beginning of the function:
  if (index > PT_FPSCR)
     return -EIO;

2. fpscr will actually be written to by this line of code:

  +       ((unsigned int \*)child->thread.fp_state.fpr)
  +               [FPRINDEX(index)] = data;

3. This is a nitpick.

So please tell me how my patch was buggy.

I don't have access to the private emails between me and Michael Ellerman anymore because I exchanged emails with him from my work email address. I've switched companies since then so unfortunately I don't have access to that conversation anymore. I do remember he pointed me to another bug that I could fix if I wanted to become a Linux kernel contributor. The first part I was paraphrasing from what I could remember.

It's now available here: https://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/m...

Author here, I've forwarded the original email thread for those curious about additional context: https://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/m...

Ok I've forwarded the email thread: https://www.mail-archive.com/linuxppc-dev@lists.ozlabs.org/m...

I used this word to emphasise my strong feelings about the situation.

Thanks, I actually have it in the sent folder of my personal email, I forgot about this. How can I share the email thread with you?

I'm the author of the post. Unfortunately, I cannot link to the original patch I sent (it was very different) because I only sent it to the Linux kernel security mailing list. I wish I had saved it somewhere so I could show it.