CVE-2026-43300

Summary

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

drm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove()

In jdi_panel_dsi_remove(), jdi is explicitly checked, indicating that it may be NULL:

if (!jdi) mipi_dsi_detach(dsi);

However, when jdi is NULL, the function does not return and continues by calling jdi_panel_disable():

err = jdi_panel_disable(&jdi->base);

Inside jdi_panel_disable(), jdi is dereferenced unconditionally, which can lead to a NULL-pointer dereference:

struct jdi_panel *jdi = to_panel_jdi(panel); backlight_disable(jdi->backlight);

To prevent such a potential NULL-pointer dereference, return early from jdi_panel_dsi_remove() when jdi is NULL.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/ec2f37bbb733cdd7ed7d04171fca728a532414d5
• https://git.kernel.org/stable/c/2f5427d8726b22b807beec248d7d6bf88e291e0b
• https://git.kernel.org/stable/c/83ce0085fabf757b039322928188ad78e962d609
• https://git.kernel.org/stable/c/95eed73b871111123a8b1d31cb1fce7e902e49ea

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