Read, Write & Execution on 0x0 address

[AyoubJalali]

Is there an existing CVA6 bug for this?

• [X] I have searched the existing bug issues

Bug Description

Hello, So I notice that the CVA6 has permission to read, wrote & execute on 0x0 address, I think it should raise an exception on lower address. to reproduce the Bug you'll find an .S

bug_test.S

[zchamski]

This seems to be another incarnation of #1625 where CVA6 does not trap on address 0xffff_fff0.

[AyoubJalali]

what I observed is the CVA6 can read/ write and execute from address 0x0 to 0xffff_ffff (virtual address), we need to resolve this, this is not right