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CVE-2023-53047 is a use-after-free vulnerability in the Linux kernel AMD Trusted Execution Environment (AMD TEE) driver. In amdtee_open_session, the session-mask bit could be set before the corresponding session information was stored. A concurrent amdtee_close_session operation could observe the mask bit, close the same session, and release the session structure while amdtee_open_session continued to access it. The upstream fix makes setting the session-mask bit the final step of session opening.
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A Linux kernel AMD TEE (amdtee) race-condition flaw in amdtee_open_session(). Red Hat addresses it in its Important RHSA-2025:14003 kernel update for Red Hat Enterprise Linux 9.2 Update Services and Extended Life Cycle variants.
A race-condition flaw in the Linux kernel AMD Trusted Execution Environment (amdtee) driver's amdtee_open_session function. It is addressed by the Red Hat kernel-rt security update.
A race condition in the Linux kernel AMD TEE driver's amdtee_open_session operation.
A race condition in the Linux kernel AMD TEE driver's amdtee_open_session function.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.