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-2024-49997

CVE-2024-49997HIGH

Linux Linux — net: ethernet: lantiq_etop: fix memory disclosure

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  H  N  N    7.5   .0106   64.1     —

AFFECTED
  Product  Versions                                    Fixed
  Linux    504d4721ee8e432af4b5f196a08af38bc4dac5fe –  —
  Linux    3.0 –                                       4.19.323

TIMELINE
  Oct 21  Reserved by Linux
  Oct 21  Published (CNA: Linux)
  Oct 15  ENRICHED — CVE-2024-49997 (Linux). Received CVSS 7.5 and CPE data from NVD.

CWE-212 · CNA: Linux · CVSS v3.1 · 13 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: lantiq_etop: fix memory disclosure When applying padding, the buffer is not zeroed, which results in memory disclosure. The mentioned data is observed on the wire. This patch uses skb_put_padto() to pad Ethernet frames properly. The mentioned function zeroes the expanded buffer. In case the packet cannot be padded it is silently dropped. Statistics are also not incremented. This driver does not support statistics in the old 32-bit format or the new 64-bit format. These will be added in the future. In its current form, the patch should be easily backported to stable versions. Ethernet MACs on Amazon-SE and Danube cannot do padding of the packets in hardware, so software padding must be applied.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 21, 2024	Reserved	Reserved by Linux
October 21, 2024	Published	Published (CNA: Linux)
October 15, 2026	ENRICHED	ENRICHED — CVE-2024-49997 (Linux). Received CVSS 7.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Linux	—	504d4721ee8e432af4b5f196a08af38bc4dac5fe	—
Linux	Linux	—	3.0	4.19.323

Weaknesses

CWE-212

References (13)

Authoritative record: CVE-2024-49997 at cve.org

Vendors: linux

Weaknesses: CWE-212

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-49997 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.