CVE-2024-26715

MEDIUM

Linux Kernel 3.16.81-3.16.82 - NULL Pointer Dereference in dwc3_gadget_suspend

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend In current scenario if Plug-out and Plug-In performed continuously there could be a chance while checking for dwc->gadget_driver in dwc3_gadget_suspend, a NULL pointer dereference may occur. Call Stack: CPU1: CPU2: gadget_unbind_driver dwc3_suspend_common dwc3_gadget_stop dwc3_gadget_suspend dwc3_disconnect_gadget CPU1 basically clears the variable and CPU2 checks the variable. Consider CPU1 is running and right before gadget_driver is cleared and in parallel CPU2 executes dwc3_gadget_suspend where it finds dwc->gadget_driver which is not NULL and resumes execution and then CPU1 completes execution. CPU2 executes dwc3_disconnect_gadget where it checks dwc->gadget_driver is already NULL because of which the NULL pointer deference occur.

Scores

CVSS v3 5.5
EPSS 0.0026
EPSS Percentile 17.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (18)
Linux/Linux < 4.6
Linux/Linux 3.16.81 - 3.17
Linux/Linux 4.4.178 - 4.5
Linux/Linux 4.6
Linux/Linux 5.15.149 - 5.15.*
Linux/Linux 6.1.79 - 6.1.*
Linux/Linux 6.6.18 - 6.6.*
Linux/Linux 6.7.6 - 6.7.*
Linux/Linux 6.8
Linux/Linux 8cca5c85393a7a490d4d7942c24d73d29cc77b3e
... and 8 more
Published Apr 03, 2024
Tracked Since Feb 18, 2026