CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, при специфични условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: RISC-V: KVM: Serialize IMSIC attributes with vCPU migration KVM device ioctls are not serialized against KVM_RUN. As a result, kvm_riscv_aia_imsic_rw_attr() can snapshot the physical CPU and HGEI of an IMSIC VS-file before a concurrent vCPU migration releases it. The HGEI can then be allocated to another vCPU before imsic_vsfile_rw() uses the stale tuple. A GET or SET attribute may consequently access the new owner's interrupt file. Serialize the entire IMSIC attribute operation with the target vCPU mutex. This prevents the VS-file from being migrated and recycled until the attribute access completes. Acquire the mutex killably so that the device ioctl remains interruptible while waiting for KVM_RUN to finish.
Засегнати продукти
- Linux Linux: db8b7e97d6137a28b2bfc07e591d54da268f0c36 преди 6c2bcf6b173d4afed883cceea9d47f2c5194161d; db8b7e97d6137a28b2bfc07e591d54da268f0c36 преди a29c5d2dd2ef9a8617a9a6d5585696d5f149cd98; db8b7e97d6137a28b2bfc07e591d54da268f0c36 преди c525772c304c971b0d3a1f2898dedbae653efe90; db8b7e97d6137a28b2bfc07e591d54da268f0c36 преди 71acbea44e78665ea90e3c310fca6bbdcc0252db; db8b7e97d6137a28b2bfc07e591d54da268f0c36 преди 8ae12ccaec6ec74945d8c1ef39f2c1b8df779abc
- Linux Linux: 6.5; преди 6.5; 6.6.160 до 6.6.*; 6.12.112 до 6.12.*; 6.18.55 до 6.18.*; 7.2.9 до 7.2.*; от 7.3 нататък
История
- 18 октомври 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-98465
- https://nvd.nist.gov/vuln/detail/CVE-2026-98465
- https://git.kernel.org/stable/c/6c2bcf6b173d4afed883cceea9d47f2c5194161d
- https://git.kernel.org/stable/c/a29c5d2dd2ef9a8617a9a6d5585696d5f149cd98
- https://git.kernel.org/stable/c/c525772c304c971b0d3a1f2898dedbae653efe90
- https://git.kernel.org/stable/c/71acbea44e78665ea90e3c310fca6bbdcc0252db
- https://git.kernel.org/stable/c/8ae12ccaec6ec74945d8c1ef39f2c1b8df779abc