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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.4, < 6.11.8 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/9265fed6db601ee2ec47577815387458ef4f047aPatch
- https://git.kernel.org/stable/c/bc203fe416abdd1c29da594565a7c3c4e979488ePatch
- https://git.kernel.org/stable/c/cfaf83501a0cbb104499c5b0892ee5ebde4e967f
FAQ
What is CVE-2024-53085?
CVE-2024-53085 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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,...
How severe is CVE-2024-53085?
CVE-2024-53085 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-53085?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.