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Vulnerability record · CVE-2018-11412 · published 24 May 2018

CVE-2018-11412: Linux kernel use after free vulnerability

Linux · Linux Kernel

In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.

5.9 CVSS 3.0 Medium EPSS 16% · top 3.2% CWE-416 · Use after free
5.9CVSS 3.0 base score, v2 4.3
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
16References, 6 tagged exploit
17 Jun 2026Last modified by NVD

Description

In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/104291 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2019:0525 Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1580 ExploitThird Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=199803 ExploitIssue TrackingThird Party Advisory
https://usn.ubuntu.com/3752-1/ Third Party Advisory
https://usn.ubuntu.com/3752-2/ Third Party Advisory
https://usn.ubuntu.com/3752-3/ Third Party Advisory
https://www.exploit-db.com/exploits/44832/ ExploitThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/104291 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2019:0525 Third Party Advisory
https://bugs.chromium.org/p/project-zero/issues/detail?id=1580 ExploitThird Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=199803 ExploitIssue TrackingThird Party Advisory
https://usn.ubuntu.com/3752-1/ Third Party Advisory
https://usn.ubuntu.com/3752-2/ Third Party Advisory
https://usn.ubuntu.com/3752-3/ Third Party Advisory
https://www.exploit-db.com/exploits/44832/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-11412), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.