What’s Vulnerable › Vulnerabilities

CVE-2022-50364: i2c: mux: reg: check return value after calling platform_get_resource()

• 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: 2025-09-17 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: mux: reg: check return value after calling platform_get_resource() It will cause null-ptr-deref in resource_size(), if platform_get_resource() returns NULL, move calling resource_size() after devm_ioremap_resource() that will check 'res' to avoid null-ptr-deref. And use devm_platform_get_and_ioremap_resource() to simplify code.

Affected products

• Linux kernel: from 4.3 before 5.10.163; from 5.11 before 5.15.86; from 5.16 before 6.0.16; from 6.1 before 6.1.2 — fixed in 5.10.163, 5.15.86, 6.0.16, 6.1.2

How to fix

Upgrade to a fixed version: Linux kernel 5.10.163, 5.15.86, 6.0.16, 6.1.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2d47b79d2bd39cc6369eccf94a06568d84c906ae
• https://git.kernel.org/stable/c/61df25c41b8e0d2c988ccf17139f70075a2e1ba4
• https://git.kernel.org/stable/c/8212800943997fab61874550278d653cb378c60c
• https://git.kernel.org/stable/c/f5049b3ad9446203b916ee375f30fa217735f63a
• https://git.kernel.org/stable/c/f7a440c89b6d460154efeb058272760e41bdfea8

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