CVE-2026-74681
- Source
- https://cve.org/CVERecord?id=CVE-2026-74681
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74681.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74681
- Downstream
- Published
- 2026-08-22T15:32:48Z
- Modified
- 2026-08-24T11:47:20Z
- Summary
- usb: misc: usbio: check ibuf_len against rxbuf_len in bulk msg
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usb: misc: usbio: check ibuf_len against rxbuf_len in bulk msg
ibuf_len is the bulk IN (receive) buffer size, but the EMSGSIZE check in usbio_bulk_msg() compares it against txbuf_len — the bulk OUT endpoint size. Both are taken independently from different endpoints in usbio_probe(), so the check is wrong when they differ.
Use rxbuf_len for the IN direction. This matches the buffer that actually holds the response data.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74681.json" }- References
-
- https://git.kernel.org/stable/c/7e22c9f79b200672f3e477421b6c9050d8cf70a5
- https://git.kernel.org/stable/c/9ad0164f78b66b0b5eca3a5748cc94dd87e28124
- https://git.kernel.org/stable/c/ebfd1e82ab0a6d26efd9bdd89de899215851f5bf
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74681.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74681
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git