CVE-2023-23002 Null dereference in n/a

What is CVE-2023-23002?

CVE-2023-23002 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 5.16.3, drivers/bluetooth/hci_qca.c misinterprets the devm_gpiod_get_index_optional return value (expects it to be NULL in the error case, whereas it is actually an error pointer).

Weakness: CWE-476

Which versions are affected by CVE-2023-23002?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-23002?

Apply the vendor's patch.

Is CVE-2023-23002 being exploited?

There is no known exploitation of CVE-2023-23002 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-25610, BELL-CVE-2023-23002, DEBIAN-CVE-2023-23002, GHSA-766m-w6rv-79q4, UBUNTU-CVE-2023-23002.