CVE-2026-90297

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 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 Software

VendorProductVersion RangeStatus
LinuxLinuxdcd215801b0279f0a021516526cf7c0b67d5302e < aaf812960fb5ade24be7a1d8fea27a1ffc458c30affected
LinuxLinuxdcd215801b0279f0a021516526cf7c0b67d5302e < e216d6168f25a69e5ae5b981ee73b3a860a46441affected
LinuxLinuxdcd215801b0279f0a021516526cf7c0b67d5302e < 2bb3169788f8296c8fc1e0d4fa6f1c6367cd5829affected
LinuxLinuxdcd215801b0279f0a021516526cf7c0b67d5302e < 1882112124a642de7571fbf354fa1929decbb3efaffected
LinuxLinuxdcd215801b0279f0a021516526cf7c0b67d5302e < 8f32af44d43332c02198752e596df00659bf4354affected
LinuxLinuxdcd215801b0279f0a021516526cf7c0b67d5302e < 65bc02fec98e4e1d7d59d86cf2ddf8fd73dacb89affected
LinuxLinuxdcd215801b0279f0a021516526cf7c0b67d5302e < c0d3219ffd4c0d42295e0dc949856067b7818b71affected
LinuxLinuxdcd215801b0279f0a021516526cf7c0b67d5302e < 7061ff05ed4a3cf16e83f7e3ad09cbd212508a32affected
LinuxLinux4.12affected
LinuxLinux0 < 4.12unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References