CVE-2024-53085

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.

The following products are affected by CVE-2024-53085 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2024-53085.

URL	Resource
https://git.kernel.org/stable/c/9265fed6db601ee2ec47577815387458ef4f047a
https://git.kernel.org/stable/c/bc203fe416abdd1c29da594565a7c3c4e979488e
https://git.kernel.org/stable/c/cfaf83501a0cbb104499c5b0892ee5ebde4e967f
https://lore.kernel.org/linux-cve-announce/2024111905-CVE-2024-53085-9cf3@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-53085
https://www.cve.org/CVERecord?id=CVE-2024-53085