CVE-2026-31720
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: f_uac1_legacy: validate control request size
f_audio_complete() copies req->length bytes into a 4-byte stack
variable:
u32 data = 0;
memcpy(&data, req->buf, req->length);
req->length is derived from the host-controlled USB request path,
which can lead to a stack out-of-bounds write.
Validate req->actual against the expected payload size for the
supported control selectors and decode only the expected amount
of data.
This avoids copying a host-influenced length into a fixed-size
stack object.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0002
Percentile
0,1th
Updated
EPSS Score Trend (Last 2 Days)
https://git.kernel.org/stable/c/0d41772d98dcaf6c17e875b7d0ea0154ae1191ee
https://git.kernel.org/stable/c/21b11e8581285c6f10ef43d05df349d445f24273
https://git.kernel.org/stable/c/26304d124e7f0383f8fe1168b5801a0ac7e16b1c
https://git.kernel.org/stable/c/557d1d4e862eccd0b74cc377b66de3e1e8d49605
https://git.kernel.org/stable/c/6e0e34d85cd46ceb37d16054e97a373a32770f6c
https://git.kernel.org/stable/c/8e5eb1d6e6a3d7bbea9c92132d0cda5793176426
https://git.kernel.org/stable/c/be2d32f0c3fe333d14c0a9ca90328dacbc3e06b8
https://git.kernel.org/stable/c/c6da4fed7537aec19880c24f6c3a95065adb1406