In the Linux kernel, the following vulnerability has been resolved:
char: tpm: Protect tpm_pm_suspend with locks
Currently tpm transactions are executed unconditionally in tpm_pm_suspend() function, which may lead to races with other tpm accessors in the system.
Specifically, the hw_random tpm driver makes use of tpm_get_random(), and this function is called in a loop from a kthread, which means it's not frozen alongside userspace, and so can race with the work done during system suspend:
tpm tpm0: tpm_transmit: tpm_recv: error -52 tpm tpm0: invalid TPM_STS.x 0xff, dumping stack for forensics CPU: 0 PID: 1 Comm: init Not tainted 6.1.0-rc5+ #135 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807_005459-localhost 04/01/2014 Call Trace: tpm_tis_status.cold+0x19/0x20 tpm_transmit+0x13b/0x390 tpm_transmit_cmd+0x20/0x80 tpm1_pm_suspend+0xa6/0x110 tpm_pm_suspend+0x53/0x80 __pnp_bus_suspend+0x35/0xe0 __device_suspend+0x10f/0x350
Fix this by calling tpm_try_get_ops(), which itself is a wrapper around tpm_chip_start(), but takes the appropriate mutex.
[Jason: reworked commit message, added metadata]
CVSS Details
- CVSS 3.1 Base Score: 4.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade perfUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.15.86-53.137Upgrade perf-debuginfoUpgrade kernel-headersUpgrade python-perf-debuginfoUpgrade kernelUpgrade python-perfUpgrade kernel-toolsUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-develUpgrade kernel-livepatch-5.10.162-141.675Upgrade kernel-tools-develUpgrade kernel-debuginfo-common-aarch64Upgrade bpftool | Mar 14, 2025 | Oct 21, 2024 |
| Debian | — | Upgrade linux | Oct 23, 2024 | Oct 23, 2024 |
| Redhat_linux | — | No solution exists | Jul 9, 2025 | Oct 21, 2024 |
| Ubuntu | — | Upgrade linux-lowlatencyUpgrade linux-azure-5.4Upgrade linux-iotUpgrade linux-aws-5.4Upgrade linux-gcp-5.4Upgrade linux-gcp-fipsUpgrade linux-raspiUpgrade linux-azureUpgrade linux-gkeop-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linuxUpgrade linux-ibm-5.4Upgrade linux-hwe-5.15Upgrade linux-azure-fipsUpgrade linux-awsUpgrade linux-aws-5.15Upgrade linux-bluefieldUpgrade linux-gkeopUpgrade linux-lowlatency-hwe-5.15Upgrade linux-fipsUpgrade linux-azure-5.15Upgrade linux-hwe-5.4Upgrade linux-intel-iotg-5.15Upgrade linux-ibmUpgrade linux-realtimeUpgrade linux-xilinx-zynqmpUpgrade linux-raspi-5.4Upgrade linux-intel-iotgUpgrade linux-gcpUpgrade linux-kvmUpgrade linux-nvidiaUpgrade linux-gcp-5.15Upgrade linux-oracle-5.15Upgrade linux-oracleUpgrade linux-aws-fipsUpgrade linux-gkeUpgrade linux-azure-fdeUpgrade linux-riscv-5.15Upgrade linux-oracle-5.4Upgrade linux-intel-iot-realtime | Nov 19, 2024 | Oct 21, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | Oct 21, 2024 |
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