CVE-2022-26357 Race condition in xen

What is CVE-2022-26357?

CVE-2022-26357 is a high-severity vulnerability in Debian Debian Linux, published on 5 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.

Weakness: CWE-362

Which versions are affected by CVE-2022-26357?

It affects 3 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Xen Xen.

How do I fix CVE-2022-26357?

Apply the vendor's patch.

Is CVE-2022-26357 being exploited?

There is no known exploitation of CVE-2022-26357 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2022-26357, DEBIAN-CVE-2022-26357, GHSA-p235-73wr-c3m7, UBUNTU-CVE-2022-26357.