tpm: Lock TPM chip in tpm_pm_suspend() first (Linux Linux)

CVE-2024-53085
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 7 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

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.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 99d46450625590d410f86fe4660a5eff7d3b8343 < cfaf83501a0cbb104499c5b0892ee5ebde4e967f ; affected 99d46450625590d410f86fe4660a5eff7d3b8343 < bc203fe416abdd1c29da594565a7c3c4e979488e ; affected 99d46450625590d410f86fe4660a5eff7d3b8343 < 9265fed6db601ee2ec47577815387458ef4f047a ; affected 7cd46930b8bf37b84777410ac21bfdf1179021d5 ; affected eeda114c92c7b2db69878cdf27163750fd57cfe2 ; affected 6.1.31 < 6.2
Linux · Linuxaffected 6.4 ; unaffected 0 < 6.4 ; unaffected 6.6.64 ≤ 6.6.* ; unaffected 6.11.8 ≤ 6.11.* ; unaffected 6.12 ≤ *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD