CVE-2017-18174: linux linux_kernel Double Free
Vulnerability summary
CVE-2017-18174 is a critical (CVSS 9.8) Double Free vulnerability in linux linux_kernel. EPSS estimates a 3.33% chance of exploitation in the next 30 days, higher than 88.6% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 3% (FIRST, 04-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 11-02-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
3.33%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
No change 0.00 pp
From 3.33% on 05-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu13 products
- linux< 4.4.0-141.167
- linux-aws< 4.4.0-1037.40 | < 4.4.0-1074.84
- linux-azure-fdeAll versions (No fix recorded)
- linux-fips< 4.4.0-1008.10
- linux-gkeAll versions (No fix recorded)
Linux1 product
- linux_kernel< 4.7
2 vendors · 14 products
References
10 links- github.com/torvalds/linux/commit/8dca4a41f1ad65043a78c2338d9725f859c8d2c3X Refsource MISCPatchThird Party AdvisoryREPORT
- github.com/torvalds/linux/commit/251e22abde21833b3d29577e4d8c7aaccd650eeeX Refsource MISCPatchThird Party AdvisoryREPORT