CVE-2025-38240NULL Pointer Dereference in Linux

Severity
5.5MEDIUMNVD
OSV7.1OSV5.9
EPSS
0.1%
top 80.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedApr 18
Latest updateJan 9

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 i

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages5 packages

NVDlinux/linux_kernel6.66.6.87+3
Debianlinux/linux_kernel< 6.12.25-1+1
Ubuntulinux/linux_kernel< 6.8.0-86.87+1
CVEListV5linux/linux7eacba9a083be65c0f251c19380ec01147c01ebc13ec849fd2eab808ee8eba2625df7ebea3b85edf+5
debiandebian/linux< linux 6.12.25-1 (forky)

Patches

🔴Vulnerability Details

19
OSV
linux-azure-nvidia vulnerabilities2026-01-09
OSV
linux-azure-fips vulnerabilities2025-12-17
OSV
linux-raspi vulnerabilities2025-11-25
OSV
linux-raspi-realtime vulnerabilities2025-11-24
OSV
linux-aws-6.8 vulnerabilities2025-11-12

📋Vendor Advisories

18
Ubuntu
Linux kernel (Azure, N-Series) vulnerabilities2026-01-09
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2025-12-17
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities2025-11-25
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities2025-11-24
Ubuntu
Linux kernel (AWS) vulnerabilities2025-11-12
CVE-2025-38240 — NULL Pointer Dereference in Linux | cvebase