CVE-2025-21685

Feb. 11, 2025, 4:11 p.m.

4.7
Medium

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: lenovo-yoga-tab2-pro-1380-fastcharger: fix serdev race The yt2_1380_fc_serdev_probe() function calls 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 devm_serdev_device_open(). Note, serdev_device_set_baudrate() and serdev_device_set_flow_control() calls should be after the devm_serdev_device_open() call.

Product(s) Impacted

Vendor Product Versions
Linux
  • Linux Kernel
  • *, 6.13

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-476
NULL Pointer Dereference
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o linux linux_kernel / / / / / / / /
o linux linux_kernel 6.13 rc1 / / / / / /
o linux linux_kernel 6.13 rc2 / / / / / /
o linux linux_kernel 6.13 rc3 / / / / / /
o linux linux_kernel 6.13 rc4 / / / / / /
o linux linux_kernel 6.13 rc5 / / / / / /
o linux linux_kernel 6.13 rc6 / / / / / /
o linux linux_kernel 6.13 rc7 / / / / / /

References

https://git.kernel.org/stable/c/3f67e07873df3c6d9ce2582260b83732e1d3a40b
https://git.kernel.org/stable/c/59616a91e5e74833b2008b56c66879857c616006

Tags

416baaa9-dc9f-4396-8d5f-8c081fb06d67
CWE-476
2025-02-09
CVE-2025-21685

CVSS Score

4.7 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: HIGH
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

    • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

    View Vector String

Timeline

Published: Feb. 9, 2025, 12:15 p.m.
Last Modified: Feb. 11, 2025, 4:11 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.