Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2023-1077

CVE-2023-1077HIGH

n/a Linux kernel — 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 …

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   L   N  U  H  H  H    7.0   .0028   19.2     —

AFFECTED
  Product       Versions   Fixed
  Linux kernel  unknown –  —

TIMELINE
  Feb 27  Reserved by redhat
  Mar 27  Published (CNA: redhat)
  Oct 14  ENRICHED — CVE-2023-1077 (Linux kernel). Received CVSS 7.0 and CPE data from NVD.

CWE-843 · CNA: redhat · CVSS v3.1 · 6 references · NVD status: Modified

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
February 27, 2023	Reserved	Reserved by redhat
March 27, 2023	Published	Published (CNA: redhat)
October 14, 2026	ENRICHED	ENRICHED — CVE-2023-1077 (Linux kernel). Received CVSS 7.0 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	Linux kernel	—	unknown	—

Weaknesses

CWE-843

References (6)

https://cert-portal.siemens.com/productcert/html/ssa-398330.html
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97 [Mailing List, Patch]
https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html [Mailing List, Third Party Advisory]
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html [Mailing List]
https://security.netapp.com/advisory/ntap-20230511-0002/ [Third Party Advisory]

Authoritative record: CVE-2023-1077 at cve.org

Weaknesses: CWE-843

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-1077 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.