CVE-2024-26715: usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend
First published: Wed Apr 03 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | <=5.10.223-1<=5.10.226-1 | 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://git.kernel.org/stable/c/36695d5eeeefe5a64b47d0336e7c8fc144e78182
- https://git.kernel.org/stable/c/57e2e42ccd3cd6183228269715ed032f44536751
- https://git.kernel.org/stable/c/61a348857e869432e6a920ad8ea9132e8d44c316
- https://git.kernel.org/stable/c/88936ceab6b426f1312327e9ef849c215c6007a7
- https://git.kernel.org/stable/c/c7ebd8149ee519d27232e6e4940e9c02071b568b
- https://launchpad.net/bugs/cve/CVE-2024-26715
- https://git.kernel.org/linus/61a348857e869432e6a920ad8ea9132e8d44c316
- https://security-tracker.debian.org/tracker/CVE-2024-26715
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26715
- https://nvd.nist.gov/vuln/detail/CVE-2024-26715
- https://ubuntu.com/security/CVE-2024-26715
- agent/severity
- agent/title
- agent/weakness
- agent/type
- collector/nvd-api
- source/NVD
- collector/launchpad-cve
- source/Launchpad
- agent/remedy
- agent/first-publish-date
- agent/description
- collector/nvd-cve
- agent/author
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/references
- agent/event
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- package-manager/debian