joeyh,
@joeyh@hachyderm.io avatar

Noticed that Jian Tan modified several additional test files besides those used in the known backdoor.

This was at the same time as the known backdoored test files, so almost certainly these RISC-V test files also contain a version of the backdoor. Used where I wonder?

joeyh,
@joeyh@hachyderm.io avatar

Or it could have been done to add cover for the actual backdoor insertation.

But "Additionally, the file contains random bytes to help test unforeseen corner cases." in Jia Tan's original commit seems pretty suspicious

Also on closer look, no need for this to be a RISC-V version of the exploit, the file could have ended up used on any system.

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