CVE-2025-39705

MEDIUM EPSS 3.2%
Published Sep 5, 20259mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 5, 2025 9mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix a Null pointer dereference vulnerability [Why] A null pointer dereference vulnerability exists in the AMD display driver's (DC module) cleanup function dc_destruct(). When display control context (dc->ctx) construction fails (due to memory allocation failure), this pointer remains NULL. During subsequent error handling when dc_destruct() is called, there's no NULL check before dereferencing the perf_trace member (dc->ctx->perf_trace), causing a kernel null pointer dereference crash. [How] Check if dc->ctx is non-NULL before dereferencing. (Updated commit text and removed unnecessary error message) (cherry picked from commit 9dd8e2ba268c636c240a918e0a31e6feaee19404)

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
3.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel*≥4.15  –  <6.12.44
linuxlinux_kernel*≥6.13  –  <6.16.4

References 3

  • git.kernel.org https://git.kernel.org/stable/c/0961673cc5f0055957aa46f25eb4ef6c07e00165
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1bcf63a44381691d6192872801f830ce3250e367
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4ade995b9b25b3c6e8dc42c27070340f1358d8c8
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0961673cc5f0055957aa46f25eb4ef6c07e00165
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1bcf63a44381691d6192872801f830ce3250e367
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4ade995b9b25b3c6e8dc42c27070340f1358d8c8
    Patch