Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Cryptographic API;
- ACPI drivers;
- HSI subsystem;
- I3C subsystem;
- InfiniBand drivers;
- Media drivers;
- Network drivers;
- Pin controllers subsystem;
- AFS file system;
- F2FS file system;
- SMB network file system;
- Padata parallel execution mechanism;
- Timer subsystem;
- Tracing infrastructure;
- Memory management;
- Appletalk network protocol;
- Networking core;
- Netfilter;
(CVE-2022-49026, CVE-2022-49390, CVE-2023-52854, CVE-2024-35867,
CVE-2024-47691, CVE-2024-49935, CVE-2024-50061, CVE-2024-50067,
CVE-2024-50095, CVE-2024-50196, CVE-2024-53090, CVE-2024-53218,
CVE-2024-56664, CVE-2025-21727, CVE-2025-21855, CVE-2025-37838,
CVE-2025-37958, CVE-2025-38352, CVE-2025-38666, CVE-2025-39964,
CVE-2025-39993, CVE-2025-40018)