---
id: CVE-2026-90297
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/sun4i: crtc: Propagate layer initialization error

  sun4i_crtc_init() returns plain NULL when layer initialization fails,
  while all its other error paths return an e…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/sun4i: crtc: Propagate layer initialization error

  sun4i_crtc_init() returns plain NULL when layer initialization fails,
  while all its other error paths return an e…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= dcd215801b0279f0a021516526cf7c0b67d5302e <
    aaf812960fb5ade24be7a1d8fea27a1ffc458c30
  - >-
    Linux >= dcd215801b0279f0a021516526cf7c0b67d5302e <
    e216d6168f25a69e5ae5b981ee73b3a860a46441
  - >-
    Linux >= dcd215801b0279f0a021516526cf7c0b67d5302e <
    2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829
  - >-
    Linux >= dcd215801b0279f0a021516526cf7c0b67d5302e <
    1882112124a642de7571fbf354fa1929decbb3ef
  - >-
    Linux >= dcd215801b0279f0a021516526cf7c0b67d5302e <
    8f32af44d43332c02198752e596df00659bf4354
  - >-
    Linux >= dcd215801b0279f0a021516526cf7c0b67d5302e <
    65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89
  - >-
    Linux >= dcd215801b0279f0a021516526cf7c0b67d5302e <
    c0d3219ffd4c0d42295e0dc949856067b7818b71
  - >-
    Linux >= dcd215801b0279f0a021516526cf7c0b67d5302e <
    7061ff05ed4a3cf16e83f7e3ad09cbd212508a32
  - Linux 4.12
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:27.137'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90297'
references:
  - url: 'https://git.kernel.org/stable/c/1882112124a642de7571fbf354fa1929decbb3ef'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7061ff05ed4a3cf16e83f7e3ad09cbd212508a32'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/8f32af44d43332c02198752e596df00659bf4354'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/aaf812960fb5ade24be7a1d8fea27a1ffc458c30'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c0d3219ffd4c0d42295e0dc949856067b7818b71'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e216d6168f25a69e5ae5b981ee73b3a860a46441'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.830Z'
epss: 0.00211
epssPercentile: 0.10195
---

## Overview

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

drm/sun4i: crtc: Propagate layer initialization error

sun4i_crtc_init() returns plain NULL when layer initialization fails,
while all its other error paths return an error pointer. The only
caller, sun4i_tcon_bind(), checks the result with IS_ERR() and happily
continues with tcon->crtc set to NULL. sun4i_rgb_init() and
sun4i_lvds_init() then dereference it in drm_crtc_mask(), which
oopses.

Return the error pointer instead.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.