AZL-100431
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-100431.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-100431
- Upstream
- Published
- 2026-09-11T20:20:03Z
- Modified
- 2026-09-13T06:06:36Z
- Summary
- CVE-2026-89733 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()
In uvc_function_bind() error path, we use usb_ep_free_request which uses uvc->control_req but does not set it to NULL afterwards. Thus, uvc->control_req is a dangling pointer causing a UAF. Also we do not set the uvc->control_buf pointer to NULL after freeing it, which is another dangling pointer. Fix it by setting uvc->control_req to NULL after we run usb_ep_free_request() and uvc->control_buf to NULL after kfree. Do the same for uvc_function_unbind().
- References