In the Linux kernel, the following vulnerability has been resolved:
riscv: process: fix kernel info leakage
thread_struct's s[12] may contain random kernel memory content, which may be finally leaked to userspace. This is a security hole. Fix it by clearing the s[12] array in thread_struct when fork.
As for kthread case, it's better to clear the s[12] array as well.
CVSS Details
- CVSS 3.1 Base Score: 7.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | May 5, 2025 | May 1, 2025 |
| Ubuntu | — | Upgrade linux-gcp-fipsUpgrade linux-aws-fipsUpgrade linux-intel-iotg-5.15Upgrade linux-azureUpgrade linux-lowlatency-hwe-5.15Upgrade linux-hweUpgrade linux-azure-5.4Upgrade linux-riscv-5.15Upgrade linux-kvmUpgrade linux-gcpUpgrade linux-raspiUpgrade linux-oracleUpgrade linux-ibmUpgrade linux-oracle-5.15Upgrade linux-aws-hweUpgrade linux-azure-5.15Upgrade linux-azure-fdeUpgrade linux-xilinx-zynqmpUpgrade linux-nvidiaUpgrade linux-aws-5.15Upgrade linux-hwe-5.15Upgrade linux-bluefieldUpgrade linux-intel-iot-realtimeUpgrade linux-intel-iotgUpgrade linux-gcp-5.15Upgrade linux-raspi-5.4Upgrade linux-gkeUpgrade linux-realtimeUpgrade linux-hwe-5.4Upgrade linux-fipsUpgrade linux-gcp-4.15Upgrade linux-awsUpgrade linux-azure-fipsUpgrade linux-ibm-5.4Upgrade linux-aws-5.4Upgrade linux-gkeopUpgrade linux-gcp-5.4Upgrade linux-nvidia-tegra-5.15Upgrade linux-lowlatencyUpgrade linux-iotUpgrade linux-azure-4.15Upgrade linux-oracle-5.4Upgrade linux | May 6, 2025 | May 1, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | May 27, 2026 | May 1, 2025 |
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