What’s Vulnerable › Vulnerabilities

CVE-2022-49435: mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe()

• 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: mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe() 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 5.4 before 5.4.198; from 5.5 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, 5.4.198

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/2d00158a06efe6bbcd020108634ea0f2ed8b32f7
• https://git.kernel.org/stable/c/311242c7703df0da14c206260b7e855f69cb0264
• https://git.kernel.org/stable/c/49c1e32e7b3f301642a60448700ec531df981269
• https://git.kernel.org/stable/c/5289795824b77489803b0802cd9edc13824a2d0b
• https://git.kernel.org/stable/c/579944b9f38727d9ff570b58f83bc424e8af8398
• https://git.kernel.org/stable/c/a1d4941d9a24999f680799f9bbde7f57351ca637

Get alerted when CVE-2022-49435 or the next vulnerability affects your stack