CVE-2024-35801

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Keep xfdstate in sync with MSRIA32XFD Commit 672365477ae8 "x86/fpu: Update XFD state where required" and commit 8bf26758ca96 "x86/fpu: Add XFD state to fpstate" introduced a per CPU variable xfdstate to keep the MSRIA32X...

CVE-2024-35801 x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Keep xfdstate in sync with MSRIA32XFD Commit 672365477ae8 "x86/fpu: Update XFD state where required" and commit 8bf26758ca96 "x86/fpu: Add XFD state to fpstate" introduced a per CPU variable xfdstate to keep the MSRIA32X...

CVE-2024-35801

CVE-2024-35801 : Linux kernel x86/fpu vulnerability where per-CPU xfd_state could be out of sync with the MSR_IA32_XFD after CPU hotplug, causing XRSTOR to raise #NM and crash. The fix introduces xfd_set_state() to write xfd_state alongside MSR_IA32_XFD and updates all MSR_IA32_XFD writes to use ...