What’s Vulnerable › Vulnerabilities

CVE-2024-56634: gpio: grgpio: Add NULL check in grgpio_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: 2024-12-27 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: gpio: grgpio: Add NULL check in grgpio_probe devm_kasprintf() can return a NULL pointer on failure,but this returned value in grgpio_probe is not checked. Add NULL check in grgpio_probe, to handle kernel NULL pointer dereference error.

Affected products

• Linux kernel: from 4.14 before 5.4.287; from 5.5 before 5.10.231; from 5.11 before 5.15.174; from 5.16 before 6.1.120; from 6.2 before 6.6.66; from 6.7 before 6.12.5 — fixed in 5.10.231, 5.15.174, 5.4.287, 6.1.120, 6.12.5, 6.6.66

How to fix

Upgrade to a fixed version: Linux kernel 5.10.231, 5.15.174, 5.4.287, 6.1.120. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/050b23d081da0f29474de043e9538c1f7a351b3b
• https://git.kernel.org/stable/c/09adf8792b61c09ae543972a1ece1884ef773848
• https://git.kernel.org/stable/c/4733f68e59bb7b9e3d395699abb18366954b9ba7
• https://git.kernel.org/stable/c/53ff0caa6ad57372d426b4f48fc0f66df43a731f
• https://git.kernel.org/stable/c/8d2ca6ac3711a4f4015d26b7cc84f325ac608edb
• https://git.kernel.org/stable/c/ad4dfa7ea7f5f7e9a3c78627cfc749bc7005ca7a
• https://git.kernel.org/stable/c/db2fc255fcf41f536ac8666409849e11659af88d
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
• https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

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