CVE-2017-8072 — The cp2112_gpio_direction_input function in drivers/hid/hid-cp2112

The cp2112_gpio_direction_input function in drivers/hid/hid-cp2112.c in the Linux kernel 4.9.x before 4.9.9 does not have the expected EIO error status for a zero-length report, which allows local users to have an unspecified impact via unknown vectors.

01What is this vulnerability?

The cp2112_gpio_direction_input function in drivers/hid/hid-cp2112.c in the Linux kernel 4.9.x before 4.9.9 does not have the expected EIO error status for a zero-length report, which allows local users to have an unspecified impact via unknown vectors.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-04-23T05:59:00.647
• Last modified: 2026-05-13T00:24:29.033

09References

• www.kernel.org — http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.9
• www.openwall.com — http://www.openwall.com/lists/oss-security/2017/04/16/4
• www.securityfocus.com — http://www.securityfocus.com/bid/98010
• git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8e…
• github.com — https://github.com/torvalds/linux/commit/8e9faa15469ed7c7467423db4c62aeed3ff4cae…
• www.kernel.org — http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.9
• www.openwall.com — http://www.openwall.com/lists/oss-security/2017/04/16/4
• www.securityfocus.com — http://www.securityfocus.com/bid/98010
• git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8e…
• github.com — https://github.com/torvalds/linux/commit/8e9faa15469ed7c7467423db4c62aeed3ff4cae…