CVE-2024-56756

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

29/12/2024

Last modified:

06/01/2025

Description

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could break out of the loop earlier on memory allocation failure and end up using less descriptors than planned for, which leads to an incorrect size passed to dma_free_coherent. In practice this was not showing up because the number of descriptors tends to be low and the dma coherent allocator always allocates and frees at least a page.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	4.13 (including)	5.4.287 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.231 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.174 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.120 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.64 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.11.11 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.12 (including)	6.12.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-56756

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools