---
id: CVE-2023-1077
title: >-
  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 t…
summary: >-
  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 t…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-843
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 2.6.25, < 4.19.293'
  - 'linux_kernel >= 4.20, < 5.4.235'
  - 'linux_kernel >= 5.5, < 5.10.173'
  - 'linux_kernel >= 5.11, < 5.15.99'
  - 'linux_kernel >= 5.16, < 6.1.16'
  - 'linux_kernel >= 6.2, < 6.2.3'
  - debian_linux = 10.0
  - a700s_firmware
  - 8300_firmware
  - 8700_firmware
  - a400_firmware
  - c400_firmware
  - h300s_firmware
  - h500s_firmware
  - h700s_firmware
  - h410s_firmware
  - h410c_firmware
patched:
  - linux_kernel 6.2.3
published: '2023-03-27'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T21:17:14.437'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-1077'
references:
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97
    label: secalert@redhat.com
  - url: 'https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html'
    label: secalert@redhat.com
  - url: 'https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html'
    label: secalert@redhat.com
  - url: 'https://security.netapp.com/advisory/ntap-20230511-0002/'
    label: secalert@redhat.com
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://security.netapp.com/advisory/ntap-20230511-0002/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-794697.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.0028
epssPercentile: 0.19022
ingestedAt: '2026-10-14T21:57:04.731Z'
---

## Overview

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.

## Affected

- `linux_kernel >= 2.6.25, < 4.19.293`
- `linux_kernel >= 4.20, < 5.4.235`
- `linux_kernel >= 5.5, < 5.10.173`
- `linux_kernel >= 5.11, < 5.15.99`
- `linux_kernel >= 5.16, < 6.1.16`
- `linux_kernel >= 6.2, < 6.2.3`
- `debian_linux = 10.0`
- `a700s_firmware`
- `8300_firmware`
- `8700_firmware`
- `a400_firmware`
- `c400_firmware`
- `h300s_firmware`
- `h500s_firmware`
- `h700s_firmware`
- `h410s_firmware`
- `h410c_firmware`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.2.3`