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-2022-48872HIGH
Linux Linux — misc: fastrpc: Fix use-after-free race condition for maps
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   L   N  U  H  H  H    7.0   .0024   15.9     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 –  —
  Linux    5.1 –                                       5.4.230
TIMELINE
  Jul 16  Reserved by Linux
  Aug 21  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2022-48872 (Linux). CVSS 7.8 → 7 (NVD).
CWE-416 · CNA: Linux · CVSS v3.1 · 5 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in between calling fastrpc_map_get() until map->fl->lock is taken in fastrpc_free_map(), another thread can call fastrpc_map_lookup() and get a reference to a map that is about to be deleted. Rewrite fastrpc_map_get() to only increase the reference count of a map if it's non-zero. Propagate this to callers so they can know if a map is about to be deleted. Fixes this warning: refcount_t: addition on 0; use-after-free. WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate ... Call trace: refcount_warn_saturate [fastrpc_map_get inlined] [fastrpc_map_lookup inlined] fastrpc_map_create fastrpc_internal_invoke fastrpc_device_ioctl __arm64_sys_ioctl invoke_syscall

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
July 16, 2024ReservedReserved by Linux
August 21, 2024PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2022-48872 (Linux). CVSS 7.8 → 7 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinuxc68cfb718c8f97b7f7a50ed66be5feb42d0c8988
LinuxLinux5.15.4.230

Weaknesses

CWE-416

References (5)

Related

Authoritative record: CVE-2022-48872 at cve.org

Vendors: linux

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-48872 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.