CVE-2017-18174 — In the Linux kernel before 4

In the Linux kernel before 4.7, the amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free.

01What is this vulnerability?

In the Linux kernel before 4.7, the amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

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: 2018-02-11T18:00:00.000Z
• Last modified: 2024-08-05T21:13:49.007Z

09References

• usn.ubuntu.com — https://usn.ubuntu.com/3848-2/
• github.com — https://github.com/torvalds/linux/commit/8dca4a41f1ad65043a78c2338d9725f859c8d2c…
• usn.ubuntu.com — https://usn.ubuntu.com/3848-1/
• git.kernel.org — http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8dca4a…
• git.kernel.org — http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=251e22…
• github.com — https://github.com/torvalds/linux/commit/251e22abde21833b3d29577e4d8c7aaccd650ee…