CVE-2026-90297

drm/sun4i: crtc: Propagate layer initialization error

State: Published
Severity: Not scored
Published: Sep 17, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	dcd215801b0279f0a021516526cf7c0b67d5302e to before aaf812960fb5ade24be7a1d8fea27a1ffc458c30Affected dcd215801b0279f0a021516526cf7c0b67d5302e to before e216d6168f25a69e5ae5b981ee73b3a860a46441Affected dcd215801b0279f0a021516526cf7c0b67d5302e to before 2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829Affected dcd215801b0279f0a021516526cf7c0b67d5302e to before 1882112124a642de7571fbf354fa1929decbb3efAffected dcd215801b0279f0a021516526cf7c0b67d5302e to before 8f32af44d43332c02198752e596df00659bf4354Affected dcd215801b0279f0a021516526cf7c0b67d5302e to before 65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89Affected dcd215801b0279f0a021516526cf7c0b67d5302e to before c0d3219ffd4c0d42295e0dc949856067b7818b71Affected dcd215801b0279f0a021516526cf7c0b67d5302e to before 7061ff05ed4a3cf16e83f7e3ad09cbd212508a32Affected
LinuxLinux	4.12Affected before 4.12Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.52 through 6.18.Not affected 7.2.6 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

dcd215801b0279f0a021516526cf7c0b67d5302e to before aaf812960fb5ade24be7a1d8fea27a1ffc458c30Affected
dcd215801b0279f0a021516526cf7c0b67d5302e to before e216d6168f25a69e5ae5b981ee73b3a860a46441Affected
dcd215801b0279f0a021516526cf7c0b67d5302e to before 2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829Affected
dcd215801b0279f0a021516526cf7c0b67d5302e to before 1882112124a642de7571fbf354fa1929decbb3efAffected
dcd215801b0279f0a021516526cf7c0b67d5302e to before 8f32af44d43332c02198752e596df00659bf4354Affected
dcd215801b0279f0a021516526cf7c0b67d5302e to before 65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89Affected
dcd215801b0279f0a021516526cf7c0b67d5302e to before c0d3219ffd4c0d42295e0dc949856067b7818b71Affected
dcd215801b0279f0a021516526cf7c0b67d5302e to before 7061ff05ed4a3cf16e83f7e3ad09cbd212508a32Affected

LinuxLinux

4.12Affected
before 4.12Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.52 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

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