Re: [PATCH v3 17/28] x86/sgx: fix a NULL pointer

Jarkko Sakkinen
2023-07-17T12:48:29Z

On Wed Jul 12, 2023 at 11:01 PM UTC, Haitao Huang wrote:
> Under heavy load, the SGX EPC reclaimers (ksgxd or future EPC cgroup
> worker) may reclaim SECS EPC page for an enclave and set
> encl->secs.epc_page to NULL. But the SECS EPC page is required for EAUG
> in #PF handler and is used without checking for NULL and reloading.
>
> Fix this by checking if SECS is loaded before EAUG and load it if it was
> reclaimed.
>
> Signed-off-by: Haitao Huang <haitao.huang@linux.intel.com>

A bug fix should be 1/*.

BR, Jarkko