CVE-2024-53085
tpm: Lock TPM chip in tpm_pm_suspend() first
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 19, 2024 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
99d46450625590d410f86fe4660a5eff7d3b8343 < cfaf83501a0cbb104499c5b0892ee5ebde4e967f 99d46450625590d410f86fe4660a5eff7d3b8343 < bc203fe416abdd1c29da594565a7c3c4e979488e 99d46450625590d410f86fe4660a5eff7d3b8343 < 9265fed6db601ee2ec47577815387458ef4f047a 7cd46930b8bf37b84777410ac21bfdf1179021d5 eeda114c92c7b2db69878cdf27163750fd57cfe2
Linux / Linux
6.4