CVE-2018-7740: n/a vulnerability

CVE-2018-7740: The resv_map_release function in mm/hugetlb.c in the Linux kernel through 4.15.7 allows local users to caus...

The resv_map_release function in mm/hugetlb.c in the Linux kernel through 4.15.7 allows local users to cause a denial of service (BUG) via a crafted application that makes mmap system calls and has a large pgoff argument to the remap_file_pages system call.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 5, 2024, 06:37 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2018-7740 is a Linux kernel denial-of-service issue. A local user could run a specially crafted application that triggers a kernel BUG in huge page reservation cleanup, potentially crashing or disrupting the system. The provided sources do not show remote attack, code execution, or confirmed active exploitation. Exposure is most relevant on Linux systems running affected kernels through 4.15.7 where local users or applications can execute code. Internet exposure alone is not enough based on the provided description. Treat this as a stability and availability risk, not a confirmed breach vector. Patch through normal kernel security maintenance, prioritizing shared Linux hosts and systems running untrusted local applications. Mitigation focus: Apply applicable Linux kernel security updates from your distribution vendor.; Review Debian, Ubuntu, or Red Hat advisories for affected packages.; Reboot into the updated kernel after patching if required..

Prepared: Jun 7, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 7, 2018, 08:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

9Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
RHSA-2018:3083CVE reference · vendor-advisory, x_refsource_REDHAT
DSA-4187CVE reference · vendor-advisory, x_refsource_DEBIAN
USN-3910-1CVE reference · vendor-advisory, x_refsource_UBUNTU
DSA-4188CVE reference · vendor-advisory, x_refsource_DEBIAN
USN-3910-2CVE reference · vendor-advisory, x_refsource_UBUNTU
https://bugzilla.kernel.org/show_bug.cgi?id=199037CVE reference · x_refsource_CONFIRM
[debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security updateCVE reference · mailing-list, x_refsource_MLIST
RHSA-2018:3096CVE reference · vendor-advisory, x_refsource_REDHAT

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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