[PATCH 0/2] riscv, bpf: fix reads of thread_info.cpu

[Alexandre Ghiti]

Hi Radim,

On 8/12/25 15:09, Radim Krčmář wrote:
> 2025-08-12T13:37:16+02:00, Alexandre Ghiti <alex at ghiti.fr>:
>> @Radim: This is the third similar bug, did you check all assembly code
>> (and bpf) to make sure we don't have anymore left or should I?
> I looked at load/store instructions, including bpf, and focussed on
> patterns where we access non-xlen sized data through an offset.
>
> (Nothing else popped up, but I mostly used grep and cscope as I don't
>   know of any semantic tool, so my confidence levels are low.)


Ok thanks, I don't have any better idea than eye scrubbing so I'll take 
another look to improve our confidence. One good thing is that now I 
don't let them pass in reviews :)

Thanks for noticing this class of bugs!

Alex


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