Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2025-22103

CVE-2025-22103MEDIUM

Linux Linux — net: fix NULL pointer dereference in l3mdev_l3_rcv

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0020    9.4     —

AFFECTED
  Product  Versions                                    Fixed
  Linux    c675e06a98a474f7ad0af32ce467613da818da52 –  —
  Linux    5.1 –                                       5.10.270

TIMELINE
  Dec 29  Reserved by Linux
  Apr 16  Published (CNA: Linux)
  Sep 14  ENRICHED — CVE-2025-22103 (Linux). Received CVSS 5.5 and CPE data from NVD.

CWE-476 · CNA: Linux · CVSS v3.1 · 7 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net: fix NULL pointer dereference in l3mdev_l3_rcv When delete l3s ipvlan: ip link del link eth0 ipvlan1 type ipvlan mode l3s This may cause a null pointer dereference: Call trace: ip_rcv_finish+0x48/0xd0 ip_rcv+0x5c/0x100 __netif_receive_skb_one_core+0x64/0xb0 __netif_receive_skb+0x20/0x80 process_backlog+0xb4/0x204 napi_poll+0xe8/0x294 net_rx_action+0xd8/0x22c __do_softirq+0x12c/0x354 This is because l3mdev_l3_rcv() visit dev->l3mdev_ops after ipvlan_l3s_unregister() assign the dev->l3mdev_ops to NULL. The process like this: (CPU1) | (CPU2) l3mdev_l3_rcv() | check dev->priv_flags: | master = skb->dev; | | | ipvlan_l3s_unregister() | set dev->priv_flags | dev->l3mdev_ops = NULL; | visit master->l3mdev_ops | To avoid this by do not set dev->l3mdev_ops when unregister l3s ipvlan.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
December 29, 2024	Reserved	Reserved by Linux
April 16, 2025	Published	Published (CNA: Linux)
September 14, 2026	ENRICHED	ENRICHED — CVE-2025-22103 (Linux). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Linux	—	c675e06a98a474f7ad0af32ce467613da818da52	—
Linux	Linux	—	5.1	5.10.270

Weaknesses

CWE-476

References (7)

Authoritative record: CVE-2025-22103 at cve.org

Vendors: linux

Weaknesses: CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-22103 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 Sunday, October 4, 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.