CVE-2023-23000 Null dereference in n/a

What is CVE-2023-23000?

CVE-2023-23000 is a medium-severity vulnerability in Linux kernel, published on 1 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In the Linux kernel before 5.17, drivers/phy/tegra/xusb.c mishandles the tegra_xusb_find_port_node return value. Callers expect NULL in the error case, but an error pointer is used.

Weakness: CWE-476

Which versions are affected by CVE-2023-23000?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-23000?

Apply the vendor's patch.

Is CVE-2023-23000 being exploited?

There is no known exploitation of CVE-2023-23000 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-25319, AZL-25901, DEBIAN-CVE-2023-23000, GHSA-j2r3-gxq6-3rp2, UBUNTU-CVE-2023-23000.