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-2023-52458

CVE-2023-52458MEDIUM

Linux Linux — block: add check that partition length needs to be aligned with block size

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0023   13.0     —

AFFECTED
  Product  Versions                                    Fixed
  Linux    633395b67bb222f85bb8f825c7751a54b9ec84ee –  —
  Linux    4.10 –                                      5.10.215

TIMELINE
  Feb 20  Reserved by Linux
  Feb 23  Published (CNA: Linux)
  Oct 15  ENRICHED — CVE-2023-52458 (Linux). Received CVSS 5.5 and CPE data from NVD.

CWE-476 · CNA: Linux · CVSS v3.1 · 8 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: block: add check that partition length needs to be aligned with block size Before calling add partition or resize partition, there is no check on whether the length is aligned with the logical block size. If the logical block size of the disk is larger than 512 bytes, then the partition size maybe not the multiple of the logical block size, and when the last sector is read, bio_truncate() will adjust the bio size, resulting in an IO error if the size of the read command is smaller than the logical block size.If integrity data is supported, this will also result in a null pointer dereference when calling bio_integrity_free.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
February 20, 2024	Reserved	Reserved by Linux
February 23, 2024	Published	Published (CNA: Linux)
October 15, 2026	ENRICHED	ENRICHED — CVE-2023-52458 (Linux). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Linux	—	633395b67bb222f85bb8f825c7751a54b9ec84ee	—
Linux	Linux	—	4.10	5.10.215

Weaknesses

CWE-476

References (8)

Authoritative record: CVE-2023-52458 at cve.org

Vendors: linux

Weaknesses: CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2023-52458 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.