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-2024-42233LOW
Linux Linux — filemap: replace pte_offset_map() with pte_offset_map_nolock()
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  L  N    3.3   .0019    9.2     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    58f327f2ce80f9c7b4a70e9cf017ae8810d44a20 –  —
  Linux    6.9 –                                       6.9.10
TIMELINE
  Jul 30  Reserved by Linux
  Aug 7   Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2024-42233 (Linux). CVSS 7.8 → 3.3 (NVD).
CNA: Linux · CVSS v3.1 · 2 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: filemap: replace pte_offset_map() with pte_offset_map_nolock() The vmf->ptl in filemap_fault_recheck_pte_none() is still set from handle_pte_fault(). But at the same time, we did a pte_unmap(vmf->pte). After a pte_unmap(vmf->pte) unmap and rcu_read_unlock(), the page table may be racily changed and vmf->ptl maybe fails to protect the actual page table. Fix this by replacing pte_offset_map() with pte_offset_map_nolock(). As David said, the PTL pointer might be stale so if we continue to use it infilemap_fault_recheck_pte_none(), it might trigger UAF. Also, if the PTL fails, the issue fixed by commit 58f327f2ce80 ("filemap: avoid unnecessary major faults in filemap_fault()") might reappear.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
July 30, 2024ReservedReserved by Linux
August 7, 2024PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2024-42233 (Linux). CVSS 7.8 → 3.3 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux58f327f2ce80f9c7b4a70e9cf017ae8810d44a20
LinuxLinux6.96.9.10

References (2)

Related

Authoritative record: CVE-2024-42233 at cve.org

Vendors: linux

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-42233 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.