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-2025-71161MEDIUM
Linux Linux — dm-verity: disable recursive forward error correction
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0034   27.2     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    a739ff3f543afbb4a041c16cd0182c8e8d366e70 –  —
  Linux    4.5 –                                       5.15.209
TIMELINE
  Jan 13  Reserved by Linux
  Jan 23  Published (CNA: Linux)
  Jul 30  RESCORED — CVE-2025-71161 (Linux). CVSS 7.5 → 5.5 (NVD).
CWE-193 · CNA: Linux · CVSS v3.1 · 8 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: dm-verity: disable recursive forward error correction There are two problems with the recursive correction: 1. It may cause denial-of-service. In fec_read_bufs, there is a loop that has 253 iterations. For each iteration, we may call verity_hash_for_block recursively. There is a limit of 4 nested recursions - that means that there may be at most 253^4 (4 billion) iterations. Red Hat QE team actually created an image that pushes dm-verity to this limit - and this image just makes the udev-worker process get stuck in the 'D' state. 2. It doesn't work. In fec_read_bufs we store data into the variable "fio->bufs", but fio bufs is shared between recursive invocations, if "verity_hash_for_block" invoked correction recursively, it would overwrite partially filled fio->bufs.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
January 13, 2026ReservedReserved by Linux
January 23, 2026PublishedPublished (CNA: Linux)
July 30, 2026RESCOREDRESCORED — CVE-2025-71161 (Linux). CVSS 7.5 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinuxa739ff3f543afbb4a041c16cd0182c8e8d366e70
LinuxLinux4.55.15.209

Weaknesses

CWE-193

References (8)

Related

Authoritative record: CVE-2025-71161 at cve.org

Vendors: linux

Weaknesses: CWE-193

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-71161 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.