Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-26705

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/04/2024
Last modified:
17/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> parisc: BTLB: Fix crash when setting up BTLB at CPU bringup<br /> <br /> When using hotplug and bringing up a 32-bit CPU, ask the firmware about the<br /> BTLB information to set up the static (block) TLB entries.<br /> <br /> For that write access to the static btlb_info struct is needed, but<br /> since it is marked __ro_after_init the kernel segfaults with missing<br /> write permissions.<br /> <br /> Fix the crash by dropping the __ro_after_init annotation.

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:*:*:*:*:*:*:*:* 6.6 (including) 6.6.18 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.7.6 (excluding)
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools