What’s Vulnerable › Vulnerabilities

CVE-2026-46261: spi: wpcm-fiu: Fix potential NULL pointer dereference in wpcm_fiu_probe()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-03 · updated 2026-07-20
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: spi: wpcm-fiu: Fix potential NULL pointer dereference in wpcm_fiu_probe() platform_get_resource_byname() can return NULL, which would cause a crash when passed the pointer to resource_size(). Move the fiu->memory_size assignment after the error check for devm_ioremap_resource() to prevent the potential NULL pointer dereference.

Affected products

• Linux kernel: from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.14; from 6.19 before 6.19.4 — fixed in 6.12.75, 6.18.14, 6.19.4, 6.6.128

How to fix

Upgrade to a fixed version: Linux kernel 6.12.75, 6.18.14, 6.19.4, 6.6.128. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0f93a80eb3fd596ddc5730d05e0e8c88e1aa2891
• https://git.kernel.org/stable/c/2c538a0b3472e99c892c26f4940da38b7d87f632
• https://git.kernel.org/stable/c/888a0a802c467bbe34a42167bdf9d7331333440a
• https://git.kernel.org/stable/c/9e5cb7e67fbdb8320d68d87db882a92b36f6a1d9
• https://git.kernel.org/stable/c/cb9b2dc34a9eef0855edb00ae9c9b7f72394281b

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