CVE-2025-38467

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling

If there's support for another console device (such as a TTY serial), the kernel occasionally panics during boot. The panic message and a relevant snippet of the call stack is as follows:

Unable to handle kernel NULL pointer dereference at virtual address 000000000000000 Call trace: drm_crtc_handle_vblank+0x10/0x30 (P) decon_irq_handler+0x88/0xb4 [...]

Otherwise, the panics don't happen. This indicates that it's some sort of race condition.

Add a check to validate if the drm device can handle vblanks before calling drm_crtc_handle_vblank() to avoid this.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < b4e72c0bf878f02faa00a7dc7c9ffc4ff7c116a7; >= 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < a2130463fc9451005660b0eda7b61d5f746f7d74; >= 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < 87825fbd1e176cd5b896940f3959e7c9a916945d; >= 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < a40a35166f7e4f6dcd4b087d620c8228922dcb0a; >= 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < 391e5ea5b877230b844c9bd8bbcd91b681b1ce2d; >= 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < e9d9b25f376737b81f06de9c5aa422b488f47184; >= 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < 996740652e620ef8ee1e5c65832cf2ffa498577d; >= 96976c3d9aff4e1387c30f6356ac01fa6f72ef46, < b846350aa272de99bf6fecfa6b08e64ebfb13173
LinuxLinux4.0

References

Timeline

Published
Jul 25, 2025
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2025-38467: Medium severity, CVSS 5.5 | Vulnix