CVE-2024-56698 Information

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.

Reference

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