CVE-2025-37964 x86/mm: Eliminate window where TLB flushes may be inadvertently skipped

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Eliminate window where TLB flushes may be inadvertently skipped tl;dr: There is a window in the mm switching code where the new CR3 is set and the CPU should be getting TLB flushes for the new mm. But shouldflushtlb has a...

CVE-2025-37964 x86/mm: Eliminate window where TLB flushes may be inadvertently skipped

In the Linux kernel, the following vulnerability has been resolved: x86/mm: Eliminate window where TLB flushes may be inadvertently skipped tl;dr: There is a window in the mm switching code where the new CR3 is set and the CPU should be getting TLB flushes for the new mm. But shouldflushtlb has a...

PT-2025-22225

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A bug in the Linux kernel's mm switching code causes TLB flushes to be suppressed in certain situations. This occurs due to a flaw in the should flush tlb function, which fails to send a...