CVE-2024-53085 - CVE House
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Status published Unknown CVE-2024-53085

tpm: Lock TPM chip in tpm_pm_suspend() first

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: tpm: Lock TPM chip in tpm_pm_suspend() first Setting TPM_CHIP_FLAG_SUSPENDED in the end of tpm_pm_suspend() can be racy according, as this leaves window for tpm_hwrng_read() to be called while the operation is in progress. The recent bug report gives also evidence of this behaviour. Aadress this by locking the TPM chip before checking any chip->flags both in tpm_pm_suspend() and tpm_hwrng_read(). Move TPM_CHIP_FLAG_SUSPENDED check inside tpm_get_random() so that it will be always checked only when the lock is reserved.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Linux
Vulnerable Versions:
99d46450625590d410f86fe4660a5eff7d3b8343, 7cd46930b8bf37b84777410ac21bfdf1179021d5, eeda114c92c7b2db69878cdf27163750fd57cfe2, 6.1.31, 6.3.5, 6.4, 0, 6.6.64, 6.11.8, 6.12

Timeline

Official Publish: November 19th, 2024
Last Modified: May 23rd, 2026
Added to House: July 22nd, 2026

CVSS Vectors

No vector data available

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.