vulnerability
Red Hat: CVE-2024-53241: kernel: xen: Xen hypercall page unsafe against speculative attacks (Xen Security Advisory 466) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:A/AC:L/Au:S/C:C/I:N/A:N) | Dec 24, 2024 | Apr 16, 2025 | Jul 9, 2025 |
Severity
6
CVSS
(AV:A/AC:L/Au:S/C:C/I:N/A:N)
Published
Dec 24, 2024
Added
Apr 16, 2025
Modified
Jul 9, 2025
Description
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.
Solution(s)
no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt
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