CVE-2025-38240

MEDIUM EPSS 12.0%
Published Apr 18, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: dp: drm_err => dev_err in HPD path to avoid NULL ptr The function mtk_dp_wait_hpd_asserted() may be called before the `mtk_dp->drm_dev` pointer is assigned in mtk_dp_bridge_attach(). Specifically it can be called via this callpath: - mtk_edp_wait_hpd_asserted - [panel probe] - dp_aux_ep_probe Using "drm" level prints anywhere in this callpath causes a NULL pointer dereference. Change the error message directly in mtk_dp_wait_hpd_asserted() to dev_err() to avoid this. Also change the error messages in mtk_dp_parse_capabilities(), which is called by mtk_dp_wait_hpd_asserted(). While touching these prints, also add the error code to them to make future debugging easier.

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
12.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥6.6  –  <6.6.87
linuxlinux_kernel*≥6.7  –  <6.12.23
linuxlinux_kernel*≥6.13  –  <6.13.11
linuxlinux_kernel*≥6.14  –  <6.14.2

References 5

  • git.kernel.org https://git.kernel.org/stable/c/106a6de46cf4887d535018185ec528ce822d6d84
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/13ec849fd2eab808ee8eba2625df7ebea3b85edf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/149a5c38436c229950cf1020992ce65c9549bc19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2fda391ef7a701748abd7fa32232981b522c1e07
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/57a9fb47551b33cde7b76d17c0072c3b394f4620
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/106a6de46cf4887d535018185ec528ce822d6d84
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/13ec849fd2eab808ee8eba2625df7ebea3b85edf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/149a5c38436c229950cf1020992ce65c9549bc19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2fda391ef7a701748abd7fa32232981b522c1e07
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/57a9fb47551b33cde7b76d17c0072c3b394f4620
    Patch