CVE-2024-56698

usb: dwc3: gadget: Fix looping of queued SG entries

CVSS 5.5 MEDIUMEPSS 0.2%CWE-476

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.5EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

28 Dec 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/0247da93bf62d33304b7bf97850ebf2a86e06d28 https://git.kernel.org/stable/c/1534f6f69393aac773465d80d31801b554352627 https://git.kernel.org/stable/c/70777a23a54e359cfdfafc625a57cd56434f3859 https://git.kernel.org/stable/c/8ceb21d76426bbe7072cc3e43281e70c0d664cc7 https://git.kernel.org/stable/c/b7c3d0b59213ebeedff63d128728ce0b3d7a51ec https://git.kernel.org/stable/c/b7fc65f5141c24785dc8c19249ca4efcf71b3524 https://git.kernel.org/stable/c/c9e72352a10ae89a430449f7bfeb043e75c255d9 https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html