Поиск уязвимостей

In the Linux kernel, the following vulnerability has been resolved: riscv: Sync efi page table's kernel mappings before switching The EFI page table is initially created as a copy of the kernel page table. With VMAP_STACK enabled, kernel stacks are allocated in the vmalloc area: if the stack is allocated in a new PGD (one that was not present at the moment of the efi page table creation or not synced in a previous vmalloc fault), the kernel will take a trap when switching to the efi page table when the vmalloc kernel stack is accessed, resulting in a kernel panic. Fix that by updating the efi kernel mappings before switching to the efi page table.

In the Linux kernel, the following vulnerability has been resolved: riscv: Sync efi page table's kernel mappings before switching The EFI page table is initially created as a copy of the kernel page table. With VMAP_STACK enabled, kernel stacks are allocated in the vmalloc area: if the stack is allocated in a new PGD (one that was not present at the moment of the efi page table creation or not synced in a previous vmalloc fault), the kernel will take a trap when switching to the efi page table when the vmalloc kernel stack is accessed, resulting in a kernel panic. Fix that by updating the efi kernel mappings before switching to the efi page table.

In the Linux kernel, the following vulnerability has been resolved: riscv: Sync efi page table's kernel mappings before switching The EFI page table is initially created as a copy of the kernel page table. With VMAP_STACK enabled, kernel stacks are allocated in the vmalloc area: if the stack is allocated in a new PGD (one that was not present at the moment of the efi page table creation or not synced in a previous vmalloc fault), the kernel will take a trap when switching to the efi page table when the vmalloc kernel stack is accessed, resulting in a kernel panic. Fix that by updating the efi kernel mappings before switching to the efi page table.

In the Linux kernel, the following vulnerability has been resolved: r ...

In the Linux kernel, the following vulnerability has been resolved: riscv: Sync efi page table's kernel mappings before switching The EFI page table is initially created as a copy of the kernel page table. With VMAP_STACK enabled, kernel stacks are allocated in the vmalloc area: if the stack is allocated in a new PGD (one that was not present at the moment of the efi page table creation or not synced in a previous vmalloc fault), the kernel will take a trap when switching to the efi page table when the vmalloc kernel stack is accessed, resulting in a kernel panic. Fix that by updating the efi kernel mappings before switching to the efi page table.

Уязвимость функции efi_init() модуля arch/riscv/include/asm/efi.h на процессорах с архитектурой RISC-V ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Множественные уязвимости kernel-lt

ALT-PU-2022-7817: package `kernel-image-std-def` update to version 5.15.82-alt1

ALT-PU-2022-3306: package `kernel-image-un-def` update to version 6.0.12-alt1

ALT-PU-2022-3303: package `kernel-image-mp` update to version 6.0.12-alt1

ALT-PU-2023-1044: package `kernel-image-un-def` update to version 5.15.87-alt1

ALT-PU-2022-3371: package `kernel-image-rpi-un` update to version 6.1.0-alt1

ALT-PU-2022-3364: package `kernel-image-rpi-un` update to version 6.1.0-alt1

ALT-PU-2023-7682: package `kernel-image-rpi-def` update to version 5.15.92-alt2

ALT-PU-2023-7007: package `kernel-image-rpi-def` update to version 5.15.92-alt1

ALT-PU-2023-1814: package `kernel-image-rt` update to version 6.1.28-alt1.rt10