CVE-2024-35883 spi: mchp-pci1xxx: Fix a possible null pointer dereference in pci1xxx_spi_probe

What is CVE-2024-35883?

CVE-2024-35883 is a medium-severity vulnerability in Linux kernel, published on 19 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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.

Weakness: CWE-476

Which versions are affected by CVE-2024-35883?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-35883?

Apply the vendor's patch.

Is CVE-2024-35883 being exploited?

There is no known exploitation of CVE-2024-35883 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-35883, DEBIAN-CVE-2024-35883, GHSA-c4v9-g4cm-vgvx, UBUNTU-CVE-2024-35883.