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> No, because if nbytes > sizeof(*hwrpb), your version causes the kernel to only write part of the buffer, and then when the app accesses fields at the end of the struct, it would …

> The original less-than check was deemed incorrect It was only deemed incorrect because of an information leak. Not because it's a valid use-case for user space to copy smaller po…

That's what the original check is for: if (nbytes If the buffer isn't large enough to hold *hwrpb, then it already fails. The original check was good, only needed to change the amo…

if (nbytes The fix that was done was: if (nbytes > sizeof(*hwrpb)) But I think the correct fix is: if (copy_to_user(buffer, hwrpb, sizeof(*hwrpb)) != 0) It never makes sense to cop…

Hacker News is not the best crowd for something like this. Everyone here most likely already has their own optimized workflow for something like this, including me. This is probabl…

The study did not show that Ivermectin killed SARS-CoV-2 viral particles. Prior to the pandemic, Ivermectin was known to act as an broad anti-viral. This is due to Ivermectin being…