Memory Allocation Issue in Linux Kernel's at91-pio4 Driver

CVE-2023-54319

What is CVE-2023-54319?

The Linux kernel's at91-pio4 driver has a vulnerability related to memory allocation that was identified by the kmerr.cocci script. The function devm_kasprintf() can return a NULL pointer if memory allocation fails. This situation requires proper validation of the pointer to ensure reliability and prevent potential issues in the execution of the driver. The resolution ensures that the return value of devm_kasprintf() is checked appropriately, enhancing the robustness of the driver.

References