CVE-2026-46258 gpio: cdev: Avoid NULL dereference in linehandle_create()

What is CVE-2026-46258?

CVE-2026-46258 is a medium-severity vulnerability in Linux kernel, published on 3 Jun 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:

gpio: cdev: Avoid NULL dereference in linehandle_create()

In linehandle_create(), there is a statement like this: retain_and_null_ptr(lh);

Soon after, there is a debug printout that dereferences "lh", which will crash things.

Avoid the crash by using handlereq.lines, which is the same value.

Weakness: CWE-476

Which versions are affected by CVE-2026-46258?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-46258?

Apply the vendor's patch.

Is CVE-2026-46258 being exploited?

There is no known exploitation of CVE-2026-46258 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 GHSA-xf52-gg4r-hj5f, UBUNTU-CVE-2026-46258.