CVE-2026-43264 fbdev: of: display_timing: fix refcount leak in of_get_display_timings()

What is CVE-2026-43264?

CVE-2026-43264 is a medium-severity memory corruption vulnerability in Linux kernel, published on 6 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:

fbdev: of: display_timing: fix refcount leak in of_get_display_timings()

of_parse_phandle() returns a device_node with refcount incremented, which is stored in 'entry' and then copied to 'native_mode'. When the error paths at lines 184 or 192 jump to 'entryfail', native_mode's refcount is not decremented, causing a refcount leak.

Fix this by changing the goto target from 'entryfail' to 'timingfail', which properly calls of_node_put(native_mode) before cleanup.

Which versions are affected by CVE-2026-43264?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-43264?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2026-43264 being exploited?

There is no known exploitation of CVE-2026-43264 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 BELL-CVE-2026-43264, DEBIAN-CVE-2026-43264, GHSA-72v5-9fv6-xvr9, ROOT-OS-DEBIAN-11-CVE-2026-43264, ROOT-OS-UBUNTU-2204-CVE-2026-43264, ROOT-OS-UBUNTU-2404-CVE-2026-43264 and 1 more.