What’s Vulnerable › Vulnerabilities

CVE-2023-53047: tee: amdtee: fix race condition in amdtee_open_session

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-02 · updated 2026-08-04
• Weakness: CWE-362

Description

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().

Affected products

• Linux kernel: from 5.6 before 5.10.177; from 5.11 before 5.15.105; from 5.16 before 6.1.22; from 6.2 before 6.2.9; 6.3-rc1, 6.3-rc2, 6.3-rc3 — fixed in 5.10.177, 5.15.105, 6.1.22, 6.2.9

How to fix

Upgrade to a fixed version: Linux kernel 5.10.177, 5.15.105, 6.1.22, 6.2.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/02b296978a2137d7128151c542e84dc96400bc00
• https://git.kernel.org/stable/c/a63cce9393e4e7dbc5af82dc87e68cb321cb1a78
• https://git.kernel.org/stable/c/b3ef9e6fe09f1a132af28c623edcf4d4f39d9f35
• https://git.kernel.org/stable/c/f632a90f8e39db39b322107b9a8d438b826a7f4f
• https://git.kernel.org/stable/c/f8502fba45bd30e1a6a354d9d898bc99d1a11e6d

Get alerted when CVE-2023-53047 or the next vulnerability affects your stack