Поиск уязвимостей

In the Linux kernel, the following vulnerability has been resolved: mm: khugepaged: skip huge page collapse for special files The read-only THP for filesystems will collapse THP for files opened readonly and mapped with VM_EXEC. The intended usecase is to avoid TLB misses for large text segments. But it doesn't restrict the file types so a THP could be collapsed for a non-regular file, for example, block device, if it is opened readonly and mapped with EXEC permission. This may cause bugs, like [1] and [2]. This is definitely not the intended usecase, so just collapse THP for regular files in order to close the attack surface. [shy828301@gmail.com: fix vm_file check [3]]

In the Linux kernel, the following vulnerability has been resolved: mm: khugepaged: skip huge page collapse for special files The read-only THP for filesystems will collapse THP for files opened readonly and mapped with VM_EXEC. The intended usecase is to avoid TLB misses for large text segments. But it doesn't restrict the file types so a THP could be collapsed for a non-regular file, for example, block device, if it is opened readonly and mapped with EXEC permission. This may cause bugs, like [1] and [2]. This is definitely not the intended usecase, so just collapse THP for regular files in order to close the attack surface. [shy828301@gmail.com: fix vm_file check [3]]

In the Linux kernel, the following vulnerability has been resolved: mm: khugepaged: skip huge page collapse for special files The read-only THP for filesystems will collapse THP for files opened readonly and mapped with VM_EXEC. The intended usecase is to avoid TLB misses for large text segments. But it doesn't restrict the file types so a THP could be collapsed for a non-regular file, for example, block device, if it is opened readonly and mapped with EXEC permission. This may cause bugs, like [1] and [2]. This is definitely not the intended usecase, so just collapse THP for regular files in order to close the attack surface. [shy828301@gmail.com: fix vm_file check [3]]

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

In the Linux kernel, the following vulnerability has been resolved: mm: khugepaged: skip huge page collapse for special files The read-only THP for filesystems will collapse THP for files opened readonly and mapped with VM_EXEC. The intended usecase is to avoid TLB misses for large text segments. But it doesn't restrict the file types so a THP could be collapsed for a non-regular file, for example, block device, if it is opened readonly and mapped with EXEC permission. This may cause bugs, like [1] and [2]. This is definitely not the intended usecase, so just collapse THP for regular files in order to close the attack surface. [shy828301@gmail.com: fix vm_file check [3]]

Уязвимость компонента khugepaged ядра операционной системы Linux, позволяющая нарушителю читать и манипулировать данными

ALT-PU-2021-5009: package `kernel-image-std-def` update to version 5.10.78-alt1

ALT-PU-2021-3306: package `kernel-image-std-kvm` update to version 5.10.80-alt1

ALT-PU-2021-3444: package `kernel-image-rt` update to version 5.10.78-alt1.rt56

Множественные уязвимости kernel-lt

ALT-PU-2021-3232: package `kernel-image-un-def` update to version 5.14.16-alt1

ALT-PU-2021-3309: package `kernel-image-std-def` update to version 5.10.79-alt1

ALT-PU-2021-3270: package `kernel-image-un-def` update to version 5.14.17-alt1

ALT-PU-2021-3220: package `kernel-image-mp` update to version 5.14.16-alt1

Important: kernel security update

ELSA-2024-5101: kernel security update (IMPORTANT)

ALT-PU-2021-3458: package `kernel-image-rpi-def` update to version 5.10.81-alt1

ALT-PU-2021-3451: package `kernel-image-rpi-def` update to version 5.10.81-alt1

ALT-PU-2021-3477: package `kernel-image-rt` update to version 5.10.78-alt1.rt56

Security update for the Linux Kernel