CVE-2025-22084

MEDIUM EPSS 6.1%
Published Apr 16, 20251y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 16, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: w1: fix NULL pointer dereference in probe The w1_uart_probe() function calls w1_uart_serdev_open() (which includes devm_serdev_device_open()) before setting the client ops via serdev_device_set_client_ops(). This ordering can trigger a NULL pointer dereference in the serdev controller's receive_buf handler, as it assumes serdev->ops is valid when SERPORT_ACTIVE is set. This is similar to the issue fixed in commit 5e700b384ec1 ("platform/chrome: cros_ec_uart: properly fix race condition") where devm_serdev_device_open() was called before fully initializing the device. Fix the race by ensuring client ops are set before enabling the port via w1_uart_serdev_open().

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
6.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥6.9  –  <6.12.23
linuxlinux_kernel*≥6.13  –  <6.13.11
linuxlinux_kernel*≥6.14  –  <6.14.2

References 4

  • git.kernel.org https://git.kernel.org/stable/c/0dd6770a72f138dabea9eae87f3da6ffa68f0d06
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f750b84628080ff0d67bf1af67a4967b740acf2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64ab50577c59bb7049bec6b5c42d1c38e4029f29
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc6b0ec7cccbf66ef3621e9e93296b7bd1f52298
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0dd6770a72f138dabea9eae87f3da6ffa68f0d06
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f750b84628080ff0d67bf1af67a4967b740acf2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/64ab50577c59bb7049bec6b5c42d1c38e4029f29
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc6b0ec7cccbf66ef3621e9e93296b7bd1f52298
    Patch