CVE-2026-43300 drm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove()

What is CVE-2026-43300?

CVE-2026-43300 is a medium-severity vulnerability in Linux kernel, published on 8 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-476

Which versions are affected by CVE-2026-43300?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43300?

Apply the vendor's patch.

Is CVE-2026-43300 being exploited?

There is no known exploitation of CVE-2026-43300 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-86139, BELL-CVE-2026-43300, DEBIAN-CVE-2026-43300, GHSA-vqpv-2jr8-2hmp, ROOT-OS-UBUNTU-2204-CVE-2026-43300, ROOT-OS-UBUNTU-2404-CVE-2026-43300 and 1 more.