CVE-2026-43144

MEDIUM EPSS 2.7%
Published May 6, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 6, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥6.13  –  <6.18.16
linuxlinux_kernel*≥6.19  –  <6.19.6
linuxlinux_kernel7.0any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/243307a0d1b0d01538e202c00454c28b21d4432e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/379aac7ee8240848aa35f605b06addb4617c863e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64ccb0aac41c5055780c2a58bbe2c1b362ceccde
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/243307a0d1b0d01538e202c00454c28b21d4432e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/379aac7ee8240848aa35f605b06addb4617c863e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64ccb0aac41c5055780c2a58bbe2c1b362ceccde
    Patch