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.
References
Configurations
Configuration 1 (hide)
|
History
06 May 2026, 20:58
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/0d41772d98dcaf6c17e875b7d0ea0154ae1191ee - Patch | |
| References | () https://git.kernel.org/stable/c/21b11e8581285c6f10ef43d05df349d445f24273 - Patch | |
| References | () https://git.kernel.org/stable/c/26304d124e7f0383f8fe1168b5801a0ac7e16b1c - Patch | |
| References | () https://git.kernel.org/stable/c/557d1d4e862eccd0b74cc377b66de3e1e8d49605 - Patch | |
| References | () https://git.kernel.org/stable/c/6e0e34d85cd46ceb37d16054e97a373a32770f6c - Patch | |
| References | () https://git.kernel.org/stable/c/8e5eb1d6e6a3d7bbea9c92132d0cda5793176426 - Patch | |
| References | () https://git.kernel.org/stable/c/be2d32f0c3fe333d14c0a9ca90328dacbc3e06b8 - Patch | |
| References | () https://git.kernel.org/stable/c/c6da4fed7537aec19880c24f6c3a95065adb1406 - Patch | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.8 |
| CWE | CWE-787 | |
| First Time |
Linux
Linux linux Kernel |
|
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* |
01 May 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-01 15:16
Updated : 2026-06-17 10:34
NVD link : CVE-2026-31720
Mitre link : CVE-2026-31720
CVE.ORG link : CVE-2026-31720
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-787
Out-of-bounds Write