CVE-2024-53241 — x86/xen: don't do PV iret hypercall through hypercall page
In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercall page for…
Published: 2024-12-24 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: x86/xen: don't do PV iret hypercall through hypercall page Instead of jumping to the Xen hypercall page for doing the iret hypercall, directly code the required sequence in xen-asm.S. This is done in preparation of no longer using hypercall page at all, as it has shown to cause problems with speculation mitigations. This is part of XSA-466 / CVE-2024-53241.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7