# CVE-2024-26715: linux: In the Linux kernel, the following vulnerability has been resolved:  usb: dwc3: gadget: Fix NULL pointer dereference...

CVE-2024-26715 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-26715, released April 3, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-26715
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 3, 2024

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.82-1 | [DEBIAN-CVE-2024-26715](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26715.md) | Apr 3, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.7.7-1 | [DEBIAN-CVE-2024-26715](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26715.md) | Apr 3, 2024 |
| Linux | linux Debian 14 | 6.7.7-1 | [DEBIAN-CVE-2024-26715](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26715.md) | Apr 3, 2024 |

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