What’s Vulnerable › Vulnerabilities

CVE-2025-39693: drm/amd/display: Avoid a NULL pointer dereference

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-05 · updated 2026-10-19
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Avoid a NULL pointer dereference [WHY] Although unlikely drm_atomic_get_new_connector_state() or drm_atomic_get_old_connector_state() can return NULL. [HOW] Check returns before dereference. (cherry picked from commit 1e5e8d672fec9f2ab352be121be971877bff2af9)

Affected products

• Debian Linux: 11.0
• Linux kernel: from 4.15 before 5.15.190; from 5.16 before 6.1.149; from 6.2 before 6.6.103; from 6.7 before 6.12.44; from 6.13 before 6.16.4; 6.17-rc1, 6.17-rc2 — fixed in 5.15.190, 6.1.149, 6.12.44, 6.16.4, 6.6.103

How to fix

Upgrade to a fixed version: Linux kernel 5.15.190, 6.1.149, 6.12.44, 6.16.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/07b93a5704b0b72002f0c4bd1076214af67dc661
• https://git.kernel.org/stable/c/0c1a486cbe6f9cb194e3c4a8ade4af2a642ba165
• https://git.kernel.org/stable/c/36a6b43573d152736eaf2557fe60580dd73e9350
• https://git.kernel.org/stable/c/6f860abff89417c0354b6ee5bbca188a233c5762
• https://git.kernel.org/stable/c/9c92d12b5cb9d9d88c12ae71794d3a7382fcdec0
• https://git.kernel.org/stable/c/f653dd30839eb4f573a7539e90b8a58ff9bedf2f
• https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
• https://cert-portal.siemens.com/productcert/html/ssa-032379.html

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