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-2024-45016MEDIUM
Linux Linux — netem: fix return value if duplicate enqueue fails
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0025   16.7     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    5845f706388a4cde0f6b80f9e5d33527e942b7d9 –  —
  Linux    5.0 –                                       5.4.283
TIMELINE
  Aug 21  Reserved by Linux
  Sep 11  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2024-45016 (Linux). CVSS 7.8 → 5.5 (NVD).
CWE-416 · CNA: Linux · CVSS v3.1 · 10 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: netem: fix return value if duplicate enqueue fails There is a bug in netem_enqueue() introduced by commit 5845f706388a ("net: netem: fix skb length BUG_ON in __skb_to_sgvec") that can lead to a use-after-free. This commit made netem_enqueue() always return NET_XMIT_SUCCESS when a packet is duplicated, which can cause the parent qdisc's q.qlen to be mistakenly incremented. When this happens qlen_notify() may be skipped on the parent during destruction, leaving a dangling pointer for some classful qdiscs like DRR. There are two ways for the bug happen: - If the duplicated packet is dropped by rootq->enqueue() and then the original packet is also dropped. - If rootq->enqueue() sends the duplicated packet to a different qdisc and the original packet is dropped. In both cases NET_XMIT_SUCCESS is returned even though no packets are enqueued at the netem qdisc. The fix is to defer the enqueue of the duplicate packet until after the original packet has been guaranteed to return NET_XMIT_SUCCESS.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
August 21, 2024ReservedReserved by Linux
September 11, 2024PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2024-45016 (Linux). CVSS 7.8 → 5.5 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux5845f706388a4cde0f6b80f9e5d33527e942b7d9
LinuxLinux5.05.4.283

Weaknesses

CWE-416

References (10)

Related

Authoritative record: CVE-2024-45016 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-2024-45016 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.