Описание
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.
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.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2022-49852
- https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68
- https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b
- https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30
- https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb
- https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc
- https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712
Связанные уязвимости
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.
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.
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.
In the Linux kernel, the following vulnerability has been resolved: r ...
Уязвимость функции copy_thread() модуля arch/riscv/kernel/process.c подсистемы управления модулями платформы с архитектурой RISCV ядра операционной системы Linux, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации или вызвать отказ в обслуживании