boxscore/security
CVE · referencelatest edition

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

CVE-2024-58091MEDIUM
Linux Linux — drm/fbdev-dma: Add shadow buffering for deferred I/O
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0020   10.4     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    5ab91447aa13b8b98bc11f5326f33500b0ee2c48 –  —
  Linux    6.11 –                                      6.12.36
TIMELINE
  Mar 6   Reserved by Linux
  Mar 27  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2024-58091 (Linux). CVSS 7.8 → 5.5 (NVD).
CWE-476 · CNA: Linux · CVSS v3.1 · 3 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: drm/fbdev-dma: Add shadow buffering for deferred I/O DMA areas are not necessarily backed by struct page, so we cannot rely on it for deferred I/O. Allocate a shadow buffer for drivers that require deferred I/O and use it as framebuffer memory. Fixes driver errors about being "Unable to handle kernel NULL pointer dereference at virtual address" or "Unable to handle kernel paging request at virtual address". The patch splits drm_fbdev_dma_driver_fbdev_probe() in an initial allocation, which creates the DMA-backed buffer object, and a tail that sets up the fbdev data structures. There is a tail function for direct memory mappings and a tail function for deferred I/O with the shadow buffer. It is no longer possible to use deferred I/O without shadow buffer. It can be re-added if there exists a reliably test for usable struct page in the allocated DMA-backed buffer object.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
March 6, 2025ReservedReserved by Linux
March 27, 2025PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2024-58091 (Linux). CVSS 7.8 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux5ab91447aa13b8b98bc11f5326f33500b0ee2c48
LinuxLinux6.116.12.36

Weaknesses

CWE-476

References (3)

Related

Authoritative record: CVE-2024-58091 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-2024-58091 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 Wednesday, August 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.