Описание
In the Linux kernel, the following vulnerability has been resolved:
nvme-pci: add missing condition check for existence of mapped data
nvme_map_data() is called when request has physical segments, hence
the nvme_unmap_data() should have same condition to avoid dereference.
nvme-pci in linux kernel does not call nvme_unmap_data for the same instances of nvme_map_data, which can lead to incorrect dereferencing.
Отчет
A moderate-impact flaw was found in the Linux kernel NVMe PCI driver (nvme-pci) as shipped in Red Hat Enterprise Linux 9 and Fedora. nvme_map_data() is only called when a request has physical segments, but nvme_unmap_data() was invoked without the same condition check, so it could run for a request for which no data had ever been mapped. This results in an incorrect pointer dereference in the kernel that can at most cause a system crash or denial of service. Red Hat rates this flaw Moderate (CVSS 4.4, CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H) because triggering the vulnerable path requires local access with high privileges and the issue has no confidentiality or integrity impact; this is lower than the severity recorded in the upstream CVE record. Red Hat Enterprise Linux 6 and 8 and the hosted OpenShift (ARO and OSD) clusters are not affected by this flaw, and Red Hat Enterprise Linux 7 is out of support. Fixes for the affected Red Hat Enterprise Linux 9 kernel and kernel-rt packages are being pursued by the Red Hat kernel engineering team as part of the delegated resolution.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | ||
| Red Hat Enterprise Linux 8 | kernel | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Will not fix | ||
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2024:9315 | 12.11.2024 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2024:9315 | 12.11.2024 |
Показывать по
Дополнительная информация
Статус:
4.4 Medium
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: add missing condition check for existence of mapped data nvme_map_data() is called when request has physical segments, hence the nvme_unmap_data() should have same condition to avoid dereference.
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: add missing condition check for existence of mapped data nvme_map_data() is called when request has physical segments, hence the nvme_unmap_data() should have same condition to avoid dereference.
In the Linux kernel, the following vulnerability has been resolved: n ...
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: add missing condition check for existence of mapped data nvme_map_data() is called when request has physical segments, hence the nvme_unmap_data() should have same condition to avoid dereference.
Уязвимость компонента nvme-pci ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
4.4 Medium
CVSS3