UBUNTU-CVE-2025-68171

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Ensure XFD state on signal delivery Sean reported 1 the following splat when running KVM tests: WARNING: CPU: 232 PID: 15391 at xfdvalidatestate+0x65/0x70 Call Trace: fpuclearuserstates+0x9c/0x100...

CVE-2025-68171 x86/fpu: Ensure XFD state on signal delivery

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Ensure XFD state on signal delivery Sean reported 1 the following splat when running KVM tests: WARNING: CPU: 232 PID: 15391 at xfdvalidatestate+0x65/0x70 Call Trace: fpuclearuserstates+0x9c/0x100...

GATEBLEED: Exploiting On-Core Accelerator Power Gating for High Performance and Stealthy Attacks on AI

As power consumption from AI training and inference continues to increase, AI accelerators are being integrated directly into the CPU. Intel's Advanced Matrix Extensions AMX is one such example, debuting on the 4th generation Intel Xeon Scalable CPU. We discover a timing side and covert channel,...