usb: gadget: renesas_usb3: validate endpoint index in standard request handlers
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 97% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/1b2bfedccc4fb8c9572e1ea464f905424c91de2ahttps://git.kernel.org/stable/c/360aa6e71870a175a6d86af905be2ca171639eb3https://git.kernel.org/stable/c/37f430b2240655e6b0199a92aa1057e4d621be51https://git.kernel.org/stable/c/44216e3dd4455b798899b50eedb0ec3831dff8e0https://git.kernel.org/stable/c/7caaf76207f50c77abfd788380e19b2c23a94415https://git.kernel.org/stable/c/adb8014599fdf0818d3d93f1f74e06cd0bdec08dhttps://git.kernel.org/stable/c/c4e5ae6db2328d2d9ed55d3005a36c13faab0752https://git.kernel.org/stable/c/e3d42598f2995cdc07b7779874e7c5f8a1b773dbhttps://git.kernel.org/stable/c/f880aac8a57ebd92abfa685d45424b2998ac1059