What’s Vulnerable › Vulnerabilities

CVE-2023-23002

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-03-01 · updated 2026-06-17
• Weakness: CWE-476

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).

Affected products

• Linux kernel: before 5.16.3 — fixed in 5.16.3

How to fix

Upgrade to a fixed version: Linux kernel 5.16.3. Check the vendor advisory for mitigations.

References

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3
• https://github.com/torvalds/linux/commit/6845667146a28c09b5dfc401c1ad112374087944
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.3
• https://github.com/torvalds/linux/commit/6845667146a28c09b5dfc401c1ad112374087944

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