Vulnerability Bulletins |
CVE-2026-31720 |
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| Affected software | LINUX KERNEL |
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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. |
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Link: |
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| https://nvd.nist.gov/vuln/detail/CVE-2026-31720 | |