Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2025-38269

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
10/07/2025
Last modified:
20/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> btrfs: exit after state insertion failure at btrfs_convert_extent_bit()<br /> <br /> If insert_state() state failed it returns an error pointer and we call<br /> extent_io_tree_panic() which will trigger a BUG() call. However if<br /> CONFIG_BUG is disabled, which is an uncommon and exotic scenario, then<br /> we fallthrough and call cache_state() which will dereference the error<br /> pointer, resulting in an invalid memory access.<br /> <br /> So jump to the &amp;#39;out&amp;#39; label after calling extent_io_tree_panic(), it also<br /> makes the code more clear besides dealing with the exotic scenario where<br /> CONFIG_BUG is disabled.

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:*:*:*:*:*:*:*:* 6.12.34 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.15.3 (excluding)

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


References to Advisories, Solutions, and Tools