CVE-2024-50197

Summary

In the Linux kernel, the following vulnerability has been resolved:

pinctrl: intel: platform: fix error path in device_for_each_child_node()

The device_for_each_child_node() loop requires calls to fwnode_handle_put() upon early returns to decrement the refcount of the child node and avoid leaking memory if that error path is triggered.

There is one early returns within that loop in intel_platform_pinctrl_prepare_community(), but fwnode_handle_put() is missing.

Instead of adding the missing call, the scoped version of the loop can be used to simplify the code and avoid mistakes in the future if new early returns are added, as the child node is only used for parsing, and it is never assigned.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxc5860e4a2737a8b29dc426c800d01c5be6aad811 < be3f7b9f995a6c2ee02767a0319929a2a98adf69affected
LinuxLinuxc5860e4a2737a8b29dc426c800d01c5be6aad811 < 16a6d2e685e8f9a2f51dd5a363d3f97fcad35e22affected
LinuxLinux6.8affected
LinuxLinux0 < 6.8unaffected
LinuxLinux6.11.5 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References