CVE-2024-53241
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
24/12/2024
Last modified:
05/01/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
x86/xen: don&#39;t do PV iret hypercall through hypercall page<br />
<br />
Instead of jumping to the Xen hypercall page for doing the iret<br />
hypercall, directly code the required sequence in xen-asm.S.<br />
<br />
This is done in preparation of no longer using hypercall page at all,<br />
as it has shown to cause problems with speculation mitigations.<br />
<br />
This is part of XSA-466 / CVE-2024-53241.
Impact
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/05df6e6cd9a76b778aee33c3c18c9f3b3566d4a5
- https://git.kernel.org/stable/c/82c211ead1ec440dbf81727e17b03b5e3c44b93d
- https://git.kernel.org/stable/c/a2796dff62d6c6bfc5fbebdf2bee0d5ac0438906
- https://git.kernel.org/stable/c/c7b4cfa6213a44fa48714186dfdf125072d036e3
- https://git.kernel.org/stable/c/f7c3fdad0a474062d566aae3289d490d7e702d30
- https://git.kernel.org/stable/c/fa719857f613fed94a79da055b13ca51214c694f
- http://www.openwall.com/lists/oss-security/2024/12/17/2
- http://www.openwall.com/lists/oss-security/2024/12/23/1
- http://www.openwall.com/lists/oss-security/2025/01/05/1
- http://www.openwall.com/lists/oss-security/2025/01/05/2
- http://xenbits.xen.org/xsa/advisory-466.html