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Vulnerabilities

Vulnerability · CVE-2023-53047

In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix race condition in amdtee_open_session There is a potential race condition in amdtee_open_sessio

Published May 2, 2025 · catalog updated Aug 5, 2026 · Linux Linux

Check this week

CVE-2023-53047 is not in CISA KEV. FIRST estimates a 15.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
15.00%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 757cc3e9ff1d72d014096399d6e2bf03974d9da1 <f632a90f8e39db39b322107b9a8d438b826a7f4f

In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix race condition in amdtee_open_session There is a potential race condition in amdtee_open_session that may lead to use-after-free. For instance, in amdtee_open_session() after sess->sess_mask is set, and before setting: sess->session_info[i] = session_info; if amdtee_close_session() closes this same session, then 'sess' data structure will be released, causing kernel panic when 'sess' is accessed within amdtee_open_session(). The solution is to set the bit sess->sess_mask as the last step in amdtee_open_session

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 757cc3e9ff1d72d014096399d6e2bf03974d9da1 <f632a90f8e39db39b322107b9a8d438b826a7f4f757cc3e9ff1d72d014096399d6e2bf03974d9da1 <f632a90f8e39db39b322107b9a8d438b826a7f4f

How to fix CVE-2023-53047

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-53047 is not in CISA KEV. FIRST estimates a 15.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Which versions are affected?

Compare what you have installed with Linux Linux 757cc3e9ff1d72d014096399d6e2bf03974d9da1 <f632a90f8e39db39b322107b9a8d438b826a7f4f 757cc3e9ff1d72d014096399d6e2bf03974d9da1 <f632a90f8e39db39b322107b9a8d438b826a7f4f. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 15.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. May 2, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix race condition in amdtee_open_session There is a potential race condition in amdtee_open_session that may lead to use-after-free. For instance, in amdtee_open_session() after sess->sess_mask is set, and before setting: sess->session_info[i] = session_info; if amdtee_close_session() closes this same session, then '

  2. Aug 5, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix race condition in amdtee_open_session There is a potential race condition in amdtee_open_session that may lead to use-after-free. For instance, in amdtee_open_session() after sess->sess_mask is set, and before setting: sess->session_info[i] = session_info; if amdtee_close_session() closes this same session, then '

Sources

  • CVE.orgVulnerability recordCVE-2023-53047

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-13206

    In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix race condition in amdtee_open_session There is a potential race condition in amdtee_open_session that may lead to use-after-free. For instance, in amdtee_open_session() after sess->sess_mask is s

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.