CVE-2024-53085 (GCVE-0-2024-53085)

Vulnerability from cvelistv5 – Published: 2024-11-19 17:45 – Updated: 2026-05-11 20:50
VLAI?
Title
tpm: Lock TPM chip in tpm_pm_suspend() first
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 99d46450625590d410f86fe4660a5eff7d3b8343 , < cfaf83501a0cbb104499c5b0892ee5ebde4e967f (git)
Affected: 99d46450625590d410f86fe4660a5eff7d3b8343 , < bc203fe416abdd1c29da594565a7c3c4e979488e (git)
Affected: 99d46450625590d410f86fe4660a5eff7d3b8343 , < 9265fed6db601ee2ec47577815387458ef4f047a (git)
Affected: 7cd46930b8bf37b84777410ac21bfdf1179021d5 (git)
Affected: eeda114c92c7b2db69878cdf27163750fd57cfe2 (git)
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Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.64 , ≤ 6.6.* (semver)
Unaffected: 6.11.8 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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            "drivers/char/tpm/tpm-chip.c",
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  }
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.