CVE-2026-43220
Description
A flaw was found in the Linux kernel, specifically within the iommu/amd component responsible for managing memory access. This vulnerability arises from an issue in how commands are processed during concurrent memory invalidations, causing them to be queued out of sequence. This can lead to system instability and timeouts, potentially allowing an attacker to trigger a Denial of Service (DoS) condition, rendering the system unavailable.
Understanding the Weakness (CWE)
Other
Technical Impact: Reduce Reliability
This issue can prevent the product from running reliably, e.g. by triggering an exception. If the relevant code is reachable by an attacker, then this reliability problem might introduce a vulnerability.
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