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 Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | No solution existsUpgrade linux | May 15, 2025 | Nov 19, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade bpftoolUpgrade kernel-abi-stablelistsUpgrade kernel-toolsUpgrade python3-perfUpgrade kernelUpgrade kernel-tools-libs | Feb 11, 2025 | Nov 19, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernelUpgrade bpftoolUpgrade kernel-abi-stablelists | Feb 11, 2025 | Nov 19, 2024 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | May 15, 2025 | Nov 19, 2024 |
| Ubuntu | — | Upgrade linux-image-nvidia-64kUpgrade linux-image-oem-24.04aUpgrade linux-image-raspi-realtimeUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1024-oracleUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-58-lowlatency-64kUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-oem-22.04Upgrade linux-image-oem-24.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-6.11.0-1015-oemUpgrade linux-image-genericUpgrade linux-image-6.8.0-1010-gkeopUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-6.8.0-1026-nvidia-64kUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-gkeopUpgrade linux-image-6.8.0-1026-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-1027-azure-fdeUpgrade linux-image-nvidiaUpgrade linux-image-6.8.0-1028-gcp-64kUpgrade linux-image-6.8.0-1026-nvidiaUpgrade linux-image-oem-22.04cUpgrade linux-image-generic-64kUpgrade linux-image-6.8.0-1027-azureUpgrade linux-image-6.8.0-1023-gkeUpgrade linux-image-6.8.0-1027-awsUpgrade linux-image-lowlatencyUpgrade linux-image-oem-22.04bUpgrade linux-image-realtimeUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gkeop-6.8Upgrade linux-image-gcpUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-virtualUpgrade linux-image-6.8.0-58-lowlatencyUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oracle-64kUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-6.8.0-1026-oemUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-gkeUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-ibmUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-azure-nvidiaUpgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-oem-24.04bUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.11.0-1009-azureUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1026-nvidia-lowlatencyUpgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-nvidia-6.8Upgrade linux-image-raspiUpgrade linux-image-6.8.0-1024-oracle-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-58-genericUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-kvmUpgrade linux-image-6.8.1-1020-realtimeUpgrade linux-image-azure-fdeUpgrade linux-image-6.8.0-1028-raspiUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-azureUpgrade linux-image-ibm-classicUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-58-generic-64kUpgrade linux-image-6.8.0-2023-raspi-realtimeUpgrade linux-image-azure-lts-24.04Upgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-6.8.0-1024-ibmUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-generic-lpaeUpgrade linux-image-awsUpgrade linux-image-oracleUpgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-1028-gcpUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-oem-22.04a | Feb 20, 2025 | Nov 19, 2024 |
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