CVE-2024-56698 usb: dwc3: gadget: Fix looping of queued SG entries

What is CVE-2024-56698?

CVE-2024-56698 is a medium-severity vulnerability in Linux kernel, published on 28 Dec 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: dwc3: gadget: Fix looping of queued SG entries

The dwc3_request->num_queued_sgs is decremented on completion. If a partially completed request is handled, then the dwc3_request->num_queued_sgs no longer reflects the total number of num_queued_sgs (it would be cleared).

Correctly check the number of request SG entries remained to be prepare and queued. Failure to do this may cause null pointer dereference when accessing non-existent SG entry.

Weakness: CWE-476

Which versions are affected by CVE-2024-56698?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-56698?

Apply the vendor's patch.

Is CVE-2024-56698 being exploited?

There is no known exploitation of CVE-2024-56698 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 AZL-56169, BELL-CVE-2024-56698, DEBIAN-CVE-2024-56698, GHSA-wh76-6j96-82w8, UBUNTU-CVE-2024-56698.