CVE-2024-35883 Information

Description

In the Linux kernel the following vulnerability has been resolved:

spi: mchp-pci1xxx: Fix a possible null pointer dereference in pci1xxx_spi_probe

In function pci1xxxx_spi_probe there is a potential null pointer that may be caused by a failed memory allocation by the function devm_kzalloc. Hence a null pointer check needs to be added to prevent null pointer dereferencing later in the code.

To fix this issue spi_bus->spi_int[iter] should be checked. The memory allocated by devm_kzalloc will be automatically released so just directly return -ENOMEM without worrying about memory leaks.

Reference

https://git.kernel.org/stable/c/4b31a226097cf8cc3c9de5e855d97757fdb2bf06 https://git.kernel.org/stable/c/95e5d9eb26705a9a76d2ef8bcba9ee2e195d653d https://git.kernel.org/stable/c/1f886a7bfb3faf4c1021e73f045538008ce7634e