PT-2025-37965 · Linux+1 · Linux Kernel+1

Published 2025-09-16 · Updated 2025-09-16 · CVE-2025-39820

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A null pointer dereference issue was resolved in the drm/msm/dpu module. The drm atomic get new connector state() function can return NULL if the connector is not part of the atomic state. A missing check for this NULL return could lead to a dereference of a null pointer. The fix adds a check to prevent this dereference, mirroring a similar check in dpu encoder update topology().

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-39820

Affected Products

Astra Linux

Linux Kernel

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/39xxx/CVE-2025-39820.json · Exploit
• https://git.kernel.org/stable/c/aaec54254b02f5959c3670177037464d828b2140 · Patch
• https://cve.org/CVERecord?id=CVE-2025-39820 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-39820 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-39820 · Security Note
• https://ubuntu.com/security/CVE-2025-39820 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-39820 · Vendor Advisory
• https://git.kernel.org/stable/c/abebfed208515726760d79cf4f9f1a76b9a10a84 · Patch
• https://osv.dev/vulnerability/CVE-2025-39820 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-39820 · Vendor Advisory
• https://twitter.com/CVEnew/status/1967965100171805180 · Twitter Post
• https://git.kernel.org/linus/abebfed208515726760d79cf4f9f1a76b9a10a84 · Note
• https://twitter.com/VulmonFeeds/status/1968057878889026035 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note