Medium 5.5Published Apr 24, 2026

CVE-2026-31615usb: gadget: renesas_usb3: validate endpoint index in standard request handlers

Updated under an hour ago (Oct 28, 2026, 1:30 AM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Jun 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	746bfe63bba37ad55956b7377c9af494e7e28929 builds before 7caaf76207f50c77abfd788380e19b2c23a94415; from 746bfe63bba37ad55956b7377c9af494e7e28929 before c4e5ae6db2328d2d9ed55d3005a36c13faab0752; 746bfe63bba37ad55956b7377c9af494e7e28929 builds before 360aa6e71870a175a6d86af905be2ca171639eb3; 746bfe63bba37ad55956b7377c9af494e7e28929 builds before 1b2bfedccc4fb8c9572e1ea464f905424c91de2a; from 746bfe63bba37ad55956b7377c9af494e7e28929 before adb8014599fdf0818d3d93f1f74e06cd0bdec08d; from 746bfe63bba37ad55956b7377c9af494e7e28929 before 44216e3dd4455b798899b50eedb0ec3831dff8e0; 746bfe63bba37ad55956b7377c9af494e7e28929 builds before 37f430b2240655e6b0199a92aa1057e4d621be51; from 746bfe63bba37ad55956b7377c9af494e7e28929 before e3d42598f2995cdc07b7779874e7c5f8a1b773db; and 1 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 4.5 before 6.6.136; from 6.12 before 6.12.83; from 6.13 before 6.18.24; from 6.19 before 6.19.14; from 7.0 before 7.0.1	NVD

References

References

https://git.kernel.org/stable/c/7caaf76207f50c77abfd788380e19b2c23a94415
https://git.kernel.org/stable/c/c4e5ae6db2328d2d9ed55d3005a36c13faab0752
https://git.kernel.org/stable/c/360aa6e71870a175a6d86af905be2ca171639eb3
https://git.kernel.org/stable/c/1b2bfedccc4fb8c9572e1ea464f905424c91de2a	patch
https://git.kernel.org/stable/c/adb8014599fdf0818d3d93f1f74e06cd0bdec08d	patch
https://git.kernel.org/stable/c/44216e3dd4455b798899b50eedb0ec3831dff8e0	patch
https://git.kernel.org/stable/c/37f430b2240655e6b0199a92aa1057e4d621be51	patch
https://git.kernel.org/stable/c/e3d42598f2995cdc07b7779874e7c5f8a1b773db	patch
https://git.kernel.org/stable/c/f880aac8a57ebd92abfa685d45424b2998ac1059	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.