// For flags

CVE-2025-38467

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

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/exynos: exynos7_drm_decon: añadir comprobación de vblank en el manejo de IRQ Si hay soporte para otro dispositivo de consola (como un serial TTY), el kernel ocasionalmente entra en pánico durante el arranque. El mensaje de pánico y un fragmento relevante de la pila de llamadas es el siguiente: Unable to handle kernel NULL pointer dereference at virtual address 000000000000000 Rastreo de llamada: drm_crtc_handle_vblank+0x10/0x30 (P) decon_irq_handler+0x88/0xb4 [...] De lo contrario, los pánicos no ocurren. Esto indica que es algún tipo de condición de ejecución. Agregue una comprobación para validar si el dispositivo drm puede manejar vblanks antes de llamar a drm_crtc_handle_vblank() para evitar esto.

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.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2025-04-16 CVE Reserved
  • 2025-07-25 CVE Published
  • 2025-07-29 CVE Updated
  • 2025-07-31 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.0 < 5.4.296
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 5.4.296"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.0 < 5.10.240
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 5.10.240"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.0 < 5.15.189
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 5.15.189"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.0 < 6.1.146
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.1.146"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.0 < 6.6.99
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.6.99"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.0 < 6.12.39
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.12.39"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.0 < 6.15.7
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.15.7"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 4.0 < 6.16
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.0 < 6.16"
en
Affected