CVE-2026-90297

drm/sun4i: crtc: Propagate layer initialization error

Published Sep 17, 2026 CVSS n/a EPSS < 1% KEV · Not listed

Description

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`dcd215801b0279f0a021516526cf7c0b67d5302e`	affected	< aaf812960fb5ade24be7a1d8fea27a1ffc458c30
`dcd215801b0279f0a021516526cf7c0b67d5302e`	affected	< e216d6168f25a69e5ae5b981ee73b3a860a46441
`dcd215801b0279f0a021516526cf7c0b67d5302e`	affected	< 2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829
`dcd215801b0279f0a021516526cf7c0b67d5302e`	affected	< 1882112124a642de7571fbf354fa1929decbb3ef
`dcd215801b0279f0a021516526cf7c0b67d5302e`	affected	< 8f32af44d43332c02198752e596df00659bf4354
`dcd215801b0279f0a021516526cf7c0b67d5302e`	affected	< 65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89
`dcd215801b0279f0a021516526cf7c0b67d5302e`	affected	< c0d3219ffd4c0d42295e0dc949856067b7818b71
`dcd215801b0279f0a021516526cf7c0b67d5302e`	affected	< 7061ff05ed4a3cf16e83f7e3ad09cbd212508a32

Linux

affected

Version	Status	Constraints
`4.12`	affected	—
`0`	unaffected	< 4.12
`5.10.270`	unaffected	≤ 5.10.*
`5.15.221`	unaffected	≤ 5.15.*
`6.1.188`	unaffected	≤ 6.1.*
`6.6.157`	unaffected	≤ 6.6.*
`6.12.110`	unaffected	≤ 6.12.*
`6.18.52`	unaffected	≤ 6.18.*
`7.2.6`	unaffected	≤ 7.2.*
`7.3`	unaffected	≤ *

No data.

Vendor Product Versions

Linux

Linux Kernel

Version	Status	Scheme	Platform
`[dcd215801b0279f0a021516526cf7c0b67d5302e,aaf812960fb5ade24be7a1d8fea27a1ffc458c30)`	affected	code_commit	—
`[dcd215801b0279f0a021516526cf7c0b67d5302e,e216d6168f25a69e5ae5b981ee73b3a860a46441)`	affected	code_commit	—
`[dcd215801b0279f0a021516526cf7c0b67d5302e,2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829)`	affected	code_commit	—
`[dcd215801b0279f0a021516526cf7c0b67d5302e,1882112124a642de7571fbf354fa1929decbb3ef)`	affected	code_commit	—
`[dcd215801b0279f0a021516526cf7c0b67d5302e,8f32af44d43332c02198752e596df00659bf4354)`	affected	code_commit	—
`[dcd215801b0279f0a021516526cf7c0b67d5302e,65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89)`	affected	code_commit	—
`[dcd215801b0279f0a021516526cf7c0b67d5302e,c0d3219ffd4c0d42295e0dc949856067b7818b71)`	affected	code_commit	—
`[dcd215801b0279f0a021516526cf7c0b67d5302e,7061ff05ed4a3cf16e83f7e3ad09cbd212508a32)`	affected	code_commit	—

Linux

Linux Kernel

Version	Status	Scheme	Platform
`4.12`	affected	generic	—
`[0,4.12)`	unaffected	generic	—
`[5.10.270,5.10.*]`	unaffected	semver	—
`[5.15.221,5.15.*]`	unaffected	semver	—
`[6.1.188,6.1.*]`	unaffected	semver	—
`[6.6.157,6.6.*]`	unaffected	semver	—
`[6.12.110,6.12.*]`	unaffected	semver	—
`[6.18.52,6.18.*]`	unaffected	semver	—
`[7.2.6,7.2.*]`	unaffected	semver	—
`[7.3-rc1,*]`	unaffected	semver	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
Debian DLA	DLA-4817-1	linux-6.12 security update
Debian DLA	DLA-4841-1	linux security update
Debian DSA	DSA-6528-1	linux security update
Ubuntu USN	USN-8961-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9019-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9020-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9022-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9023-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9024-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9025-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9026-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9029-1	Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN	USN-9039-1	Linux kernel (Azure CVM) vulnerabilities
Ubuntu USN	USN-9040-1	Linux kernel (Low Latency NVIDIA) vulnerabilities
Ubuntu USN	USN-9066-1	Linux kernel (HWE) vulnerabilities
Ubuntu USN	USN-9091-1	Linux kernel (NVIDIA Tegra) vulnerabilities

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.211% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/1882112124a642de7571fbf354fa1929decbb3ef
https://git.kernel.org/stable/c/2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829
https://git.kernel.org/stable/c/65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89
https://git.kernel.org/stable/c/7061ff05ed4a3cf16e83f7e3ad09cbd212508a32
https://git.kernel.org/stable/c/8f32af44d43332c02198752e596df00659bf4354
https://git.kernel.org/stable/c/aaf812960fb5ade24be7a1d8fea27a1ffc458c30
https://git.kernel.org/stable/c/c0d3219ffd4c0d42295e0dc949856067b7818b71
https://git.kernel.org/stable/c/e216d6168f25a69e5ae5b981ee73b3a860a46441

History

Sep 20, 2026 1:15 AM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-476

Sep 17, 2026 4:30 PM Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

Type	Values Removed	Values Added
Description		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.
Title		drm/sun4i: crtc: Propagate layer initialization error
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/1882112124a642de7571fbf354fa1929decbb3ef https://git.kernel.org/stable/c/2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829 https://git.kernel.org/stable/c/65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89 https://git.kernel.org/stable/c/7061ff05ed4a3cf16e83f7e3ad09cbd212508a32 https://git.kernel.org/stable/c/8f32af44d43332c02198752e596df00659bf4354 https://git.kernel.org/stable/c/aaf812960fb5ade24be7a1d8fea27a1ffc458c30 https://git.kernel.org/stable/c/c0d3219ffd4c0d42295e0dc949856067b7818b71 https://git.kernel.org/stable/c/e216d6168f25a69e5ae5b981ee73b3a860a46441