ALT-PU-2021-5009-1

Package update kernel-image-std-def in branch sisyphus

Version5.10.78-alt1

Published2021-11-09

Max severityMEDIUM

Severity:

Closed issues (4)

MEDIUM4.4

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

Published: 2024-12-03Modified: 2025-08-19

CVSS 3.xMEDIUM 4.4

CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS 2.0LOW 3.2

CVSS:2.0/AV:L/AC:L/Au:S/C:P/I:P/A:N

References

CVE-2021-47491

MEDIUM6.0

Уязвимость функции scsi_device_put() модуля drivers/scsi/scsi.c драйвера поддержки устройств SCSI ядра операционной системы Linux, позволяющая нарушителю получить доступ к защищаемой информации или вызвать отказ в обслуживании

Published: 2025-11-16

CVSS 3.xMEDIUM 6.0

CVSS:3.x/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

CVSS 2.0MEDIUM 5.9

CVSS:2.0/AV:L/AC:L/Au:M/C:C/I:N/A:C

References

CVE-2021-47480

MEDIUM5.5

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Put LLD module refcnt after SCSI device is released SCSI host release is triggered when SCSI device is freed. We have to make sure that the low-level device driver module won't be unloaded before SCSI host instance is released because shost->hostt is required in the release handler. Make sure to put LLD module refcnt after SCSI device is released. Fixes a kernel panic of 'BUG: unable to handle page fault for address' reported by Changhui and Yi.

Published: 2024-05-22Modified: 2025-09-29

CVSS 3.xMEDIUM 5.5

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

MEDIUM5.5

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]]

Published: 2024-05-22Modified: 2025-09-29

CVSS 3.xMEDIUM 5.5

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References