kernel: powerpc: local user can read vector registers of other users' processes via a Facility Unavailable exception

A flaw in the Linux kernel on the PowerPC platform, was found where a local user can read vector registers of other user processes via a Facility Unavailable exception. An attacker must start a transaction when the FPU operation begins or there is no leakage. Vector registers will become corrupte...

New ‘CacheOut’ Attack Targets Intel CPUs

Researchers have identified a new speculative execution type attack, dubbed CacheOut, that could allow attackers to trigger data leaks from most Intel CPUs. The more serious of the two bugs, revealed Monday, is rated medium severity by Intel, who said fixes for both flaws are on the way. The more...

Intel Processors Side Channel Data Leakage Vulnerabilities - Lenovo Support US

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CVE-2019-19602

A flaw was found in the Linux kernel. When compiled with GCC 9, a vector register corruption occurs on return from a signal handler where the top page of the signal stack had not yet been paged in which can allow a local attacker with special user privilege or root to leak kernel internal...