On 6.4.2020 9.42, Jethro Beekman wrote:
On 2020-04-04 09:27, Topi Miettinen wrote> Then initramfs should make a similar exception as with v86d and grant exec to /dev. I'm not sure this is a reasonable approach. Expect most devices with an Intel processor will have the SGX device going forward. Then, no one is using noexec, so why have this logic at all?
Intel does not control the whole market yet, does AMD also offer SGX or similar? Will SGX be also available for consumer devices? Are distros going to enable SGX, will it benefit their users somehow?
Perhaps the sgxfs approach or something else (system call?) would be better after all in order to not force exec just because of one device. /dev is usually writable, so allowing exec means breaking the W^X principle for filesystems.
-Topi
