CVE-2018-7740
Published Mar 7, 2018 · Updated Oct 23, 2026
Original summary
Normalized public record · Updated Oct 23, 2026
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.
Publisher and source text is retained separately from QFinch interpretation.
QFinch assessment
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.
Evidence: public source recordsAffected products
| Affected package, product or range | Fix status |
|---|---|
| Consult the referenced vendor advisory for affected versions. | Consult source advisory |
Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.
Remediation
Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.
- Confirm the affected product and reachable code path exist in your environment.
- Apply the vendor-supported patch or mitigation from the primary advisory.
- Rescan the exact deployed revision and retain verification evidence.
Evidence coverage
- SSVC priority
- LOW
- Confidence
- Not available
- Aliases
- None reported
Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.
Sources and record history
- RHSA-2018:3083 ↗
- DSA-4187 ↗
- USN-3910-1 ↗
- DSA-4188 ↗
- USN-3910-2 ↗
- bugzilla.kernel.org ↗
- 103316 ↗
- [debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update ↗
- RHSA-2018:3096 ↗
Record history
Published Mar 7, 2018 · Last refreshed Oct 23, 2026