Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-45027

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
11/09/2024
Last modified:
09/05/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> usb: xhci: Check for xhci-&gt;interrupters being allocated in xhci_mem_clearup()<br /> <br /> If xhci_mem_init() fails, it calls into xhci_mem_cleanup() to mop<br /> up the damage. If it fails early enough, before xhci-&gt;interrupters<br /> is allocated but after xhci-&gt;max_interrupters has been set, which<br /> happens in most (all?) cases, things get uglier, as xhci_mem_cleanup()<br /> unconditionally derefences xhci-&gt;interrupters. With prejudice.<br /> <br /> Gate the interrupt freeing loop with a check on xhci-&gt;interrupters<br /> being non-NULL.<br /> <br /> Found while debugging a DMA allocation issue that led the XHCI driver<br /> on this exact path.

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:*:*:*:*:*:*:*:* 6.8 (including) 6.10.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools