CVE-2024-50071: pinctrl: nuvoton: fix a double free in ma35_pinctrl_dt_node_to_map_func()

Severity: high (CVSS 7.8 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: 2024-10-29 · updated 2026-06-17
Weakness: CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: nuvoton: fix a double free in ma35_pinctrl_dt_node_to_map_func() 'new_map' is allocated using devm_* which takes care of freeing the allocated data on device removal, call to .dt_free_map = pinconf_generic_dt_free_map double frees the map as pinconf_generic_dt_free_map() calls pinctrl_utils_free_map(). Fix this by using kcalloc() instead of auto-managed devm_kcalloc().

Affected products

Linux kernel: from 6.11 before 6.11.5; 6.12-rc1, 6.12-rc2, 6.12-rc3 — fixed in 6.11.5

How to fix

Upgrade to a fixed version: Linux kernel 6.11.5. Check the vendor advisory for mitigations.

References

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