[PATCH v4 1/2 fix] arm64: refactor the rodata=xxx

Shijie Huang shijie at amperemail.onmicrosoft.com
Fri Dec 13 00:46:31 PST 2024


On 2024/12/13 16:26, Ard Biesheuvel wrote:
>>> How do you envisage 'noalias' becoming a security feature? The point
>> for the case 2) above, if its linear alias is also mapped as read-only,
>>
>> can we think it is safe as the original "rodata=full"?
>>
> No, it is not. Why would we bother with rodata=full (which is costly
> in terms of TLB pressure) if rodata=noalias is equally safe?

okay, thanks.

I will wait for two days, and send out the new patch if there no other 
comment.


Thanks

Huang Shijie




More information about the linux-arm-kernel mailing list