CVE-2024-26964 usb: xhci: Add error handling in xhci_map_urb_for_dma

What is CVE-2024-26964?

CVE-2024-26964 is a medium-severity vulnerability in Linux kernel, published on 1 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:

usb: xhci: Add error handling in xhci_map_urb_for_dma

Currently xhci_map_urb_for_dma() creates a temporary buffer and copies the SG list to the new linear buffer. But if the kzalloc_node() fails, then the following sg_pcopy_to_buffer() can lead to crash since it tries to memcpy to NULL pointer.

So return -ENOMEM if kzalloc returns null pointer.

Weakness: CWE-476

Which versions are affected by CVE-2024-26964?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-26964?

Apply the vendor's patch.

Is CVE-2024-26964 being exploited?

There is no known exploitation of CVE-2024-26964 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-2024-26964, DEBIAN-CVE-2024-26964, GHSA-3h33-78cr-x67r, UBUNTU-CVE-2024-26964.