Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-43144

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
06/05/2026
Last modified:
13/05/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wifi: brcmfmac: Fix potential kernel oops when probe fails<br /> <br /> When probe of the sdio brcmfmac device fails for some reasons (i.e.<br /> missing firmware), the sdiodev-&gt;bus is set to error instead of NULL, thus<br /> the cleanup later in brcmf_sdio_remove() tries to free resources via<br /> invalid bus pointer. This happens because sdiodev-&gt;bus is set 2 times:<br /> first in brcmf_sdio_probe() and second time in brcmf_sdiod_probe(). Fix<br /> this by chaning the brcmf_sdio_probe() function to return the error code<br /> and set sdio-&gt;bus only there.

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:*:*:*:*:*:*:*:* 6.13 (including) 6.18.16 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.19 (including) 6.19.6 (excluding)
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools