CVE-2026-31615
Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: renesas_usb3: validate endpoint index in standard request handlers The GET_STATUS and SET/CLEAR_FEATURE handlers extract the endpoint number from the host-supplied wIndex without any sort of validation. Fix this up by validating the number of endpoints actually match up with the number the device has before attempting to dereference a pointer based on this math. This is just like what was done in commit ee0d382feb44 ("usb: gadget: aspeed_udc: validate endpoint index for ast udc") for the aspeed driver.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | 6.6.136 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.12.85-1 |
| sid | Fixed | 6.19.14-1 |
| forky | Fixed | 6.19.14-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
References
- https://git.kernel.org/stable/c/1b2bfedccc4fb8c9572e1ea464f905424c91de2a
- https://git.kernel.org/stable/c/37f430b2240655e6b0199a92aa1057e4d621be51
- https://git.kernel.org/stable/c/44216e3dd4455b798899b50eedb0ec3831dff8e0
- https://git.kernel.org/stable/c/adb8014599fdf0818d3d93f1f74e06cd0bdec08d
- https://git.kernel.org/stable/c/e3d42598f2995cdc07b7779874e7c5f8a1b773db
- https://git.kernel.org/stable/c/f880aac8a57ebd92abfa685d45424b2998ac1059
- https://www.suse.com/security/cve/CVE-2026-31615.html
- https://security-tracker.debian.org/tracker/CVE-2026-31615
- https://git.kernel.org/stable/c/360aa6e71870a175a6d86af905be2ca171639eb3
- https://git.kernel.org/stable/c/7caaf76207f50c77abfd788380e19b2c23a94415
- https://git.kernel.org/stable/c/c4e5ae6db2328d2d9ed55d3005a36c13faab0752
CWEs
CWE-476
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.