What’s Vulnerable › Vulnerabilities

CVE-2022-49445: pinctrl: renesas: core: Fix possible null-ptr-deref in sh_pfc_map_resources()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: renesas: core: Fix possible null-ptr-deref in sh_pfc_map_resources() It will cause null-ptr-deref when using 'res', if platform_get_resource() returns NULL, so move using 'res' after devm_ioremap_resource() that will check it to avoid null-ptr-deref. And use devm_platform_get_and_ioremap_resource() to simplify code.

Affected products

• Linux kernel: from 4.3 before 5.10.121; from 5.11 before 5.15.46; from 5.16 before 5.17.14; from 5.18 before 5.18.3 — fixed in 5.10.121, 5.15.46, 5.17.14, 5.18.3

How to fix

Upgrade to a fixed version: Linux kernel 5.10.121, 5.15.46, 5.17.14, 5.18.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/5376e3d904532e657fd7ca1a9b1ff3d351527b90
• https://git.kernel.org/stable/c/5ed0519d425619b435150372cce2ffeec71581fa
• https://git.kernel.org/stable/c/e3a1ad8fd0ac11f4fa1260c23b5db71a25473254
• https://git.kernel.org/stable/c/f991879762392c19661af5b722578089a12b305f
• https://git.kernel.org/stable/c/fb4f022b3ad1f3ff3cafdbc7d51896090ae17701

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