In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: r8a66597: avoid double free of ep0_req in probe error path
If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc
and frees ep0_req, then falls through to clean_up2 where ep0_req is
freed again when it is non-NULL.
Remove the redundant free from err_add_udc and keep the cleanup in
clean_up2 so the request is released exactly once.
Issue found using a prototype static analysis tool
and confirmed by code review.
usb: gadget: r8a66597: avoid double free of ep0_req in probe error path
If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc
and frees ep0_req, then falls through to clean_up2 where ep0_req is
freed again when it is non-NULL.
Remove the redundant free from err_add_udc and keep the cleanup in
clean_up2 so the request is released exactly once.
Issue found using a prototype static analysis tool
and confirmed by code review.
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4817-1 | linux-6.12 security update |
Debian DLA |
DLA-4841-1 | linux security update |
Debian DSA |
DSA-6528-1 | linux security update |
Ubuntu USN |
USN-8961-1 | Linux kernel vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Sat, 19 Sep 2026 08:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-415 |
Thu, 17 Sep 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: usb: gadget: r8a66597: avoid double free of ep0_req in probe error path If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc and frees ep0_req, then falls through to clean_up2 where ep0_req is freed again when it is non-NULL. Remove the redundant free from err_add_udc and keep the cleanup in clean_up2 so the request is released exactly once. Issue found using a prototype static analysis tool and confirmed by code review. | |
| Title | usb: gadget: r8a66597: avoid double free of ep0_req in probe error path | |
| First Time appeared |
Linux
Linux linux Kernel |
|
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Linux
Linux linux Kernel |
|
| References |
|
|
Projects
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-10-19T09:06:13.931Z
Reserved: 2026-09-17T16:02:15.088Z
Link: CVE-2026-93141
No data.
Status : Received
Published: 2026-09-17T17:18:09.130
Modified: 2026-10-19T10:17:04.197
Link: CVE-2026-93141
No data.
OpenCVE Enrichment
Updated: 2026-09-19T19:00:13Z
Weaknesses
Debian DLA
Debian DSA
Ubuntu USN