Debian: DLA-1989-1 Critical: Linux Kernel Privilege Escalation Issues

Intel discovered that on their 8th and 9th generation GPUs,
reading certain registers while the GPU is in a low-power state
can cause a system hang. A local user permitted to use the GPU
can use this for denial of service.

This update mitigates the issue through changes to the i915
driver.

The affected chips (gen8) are listed at
;.

CVE-2019-11135

It was discovered that on Intel CPUs supporting transactional
memory (TSX), a transaction that is going to be aborted may
continue to execute speculatively, reading sensitive data from
internal buffers and leaking it through dependent operations.
Intel calls this "TSX Asynchronous Abort" (TAA).

For CPUs affected by the previously published Microarchitectural
Data Sampling (MDS) issues (CVE-2018-12126, CVE-2018-12127,
CVE-2018-12130, CVE-2019-11091), the existing mitigation also
mitigates this issue.

For processors that are vulnerable to TAA but not MDS, this update