CVE-2026-90297

Kernel oops via mishandled layer initialization failure

Published Sep 17, 2026 · Updated Sep 17, 2026

NULL dereference in Linux sun4i display initialization allows local users to trigger a kernel oops via layer initialization failure. sun4i_crtc_init() returns NULL instead of an error pointer, so sun4i_tcon_bind() accepts the result and subsequent RGB or LVDS initialization dereferences it in drm_crtc_mask(). The affected driver path must run and layer creation must fail; public sources do not describe a user-controlled trigger or establish a complete system crash.

CVSS severity2.5
Low
EPSS probability0.21%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL dereference in Linux sun4i display initialization allows local users to trigger a kernel oops via layer initialization failure. sun4i_crtc_init() returns NULL instead of an error pointer, so sun4i_tcon_bind() accepts the result and subsequent RGB or LVDS initialization dereferences it in drm_crtc_mask(). The affected driver path must run and layer creation must fail; public sources do not describe a user-controlled trigger or establish a complete system crash.

The record

CVE
CVE-2026-90297
Published
Sep 17, 2026
Updated
Sep 17, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.12
  2. Affected versionversion=dcd215801b0279f0a021516526cf7c0b67d5302e <1882112124a642de7571fbf354fa1929decbb3ef
  3. Affected versionversion=dcd215801b0279f0a021516526cf7c0b67d5302e <2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829
  4. Affected versionversion=dcd215801b0279f0a021516526cf7c0b67d5302e <65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89
  5. Affected versionversion=dcd215801b0279f0a021516526cf7c0b67d5302e <7061ff05ed4a3cf16e83f7e3ad09cbd212508a32
  6. Affected versionversion=dcd215801b0279f0a021516526cf7c0b67d5302e <8f32af44d43332c02198752e596df00659bf4354
  7. Affected versionversion=dcd215801b0279f0a021516526cf7c0b67d5302e <aaf812960fb5ade24be7a1d8fea27a1ffc458c30
  8. Affected versionversion=dcd215801b0279f0a021516526cf7c0b67d5302e <c0d3219ffd4c0d42295e0dc949856067b7818b71
  9. Affected versionversion=dcd215801b0279f0a021516526cf7c0b67d5302e <e216d6168f25a69e5ae5b981ee73b3a860a46441

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.12; version=dcd215801b0279f0a021516526cf7c0b67d5302e <1882112124a642de7571fbf354fa1929decbb3ef; version=dcd215801b0279f0a021516526cf7c0b67d5302e <2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829; version=dcd215801b0279f0a021516526cf7c0b67d5302e <65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89; version=dcd215801b0279f0a021516526cf7c0b67d5302e <7061ff05ed4a3cf16e83f7e3ad09cbd212508a32; version=dcd215801b0279f0a021516526cf7c0b67d5302e <8f32af44d43332c02198752e596df00659bf4354; version=dcd215801b0279f0a021516526cf7c0b67d5302e <aaf812960fb5ade24be7a1d8fea27a1ffc458c30; version=dcd215801b0279f0a021516526cf7c0b67d5302e <c0d3219ffd4c0d42295e0dc949856067b7818b71; version=dcd215801b0279f0a021516526cf7c0b67d5302e <e216d6168f25a69e5ae5b981ee73b3a860a46441

Published CVSS scores

2.5Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
2.5SUSECVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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