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CVE-2025-22103 (GCVE-0-2025-22103)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2026-09-14 11:57
VLAI
Title
net: fix NULL pointer dereference in l3mdev_l3_rcv
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c675e06a98a474f7ad0af32ce467613da818da52 , < 1da52878f7fb74ace304f74325bb89e3e5546b55 (git)
Affected: c675e06a98a474f7ad0af32ce467613da818da52 , < d97d6b1bd2b7f2a188d261d44c4519a13b8c406a (git)
Affected: c675e06a98a474f7ad0af32ce467613da818da52 , < 8da4d7f9141e8dbd3ece2f0e6930a0ea8812c862 (git)
Affected: c675e06a98a474f7ad0af32ce467613da818da52 , < 52b44d8c653459c658b733d13658afdde45f6836 (git)
Affected: c675e06a98a474f7ad0af32ce467613da818da52 , < 59599bce44af3df7a215ebc81cb166426e1c9204 (git)
Affected: c675e06a98a474f7ad0af32ce467613da818da52 , < f9dff65140efc289f01bcf39c3ca66a8806b6132 (git)
Affected: c675e06a98a474f7ad0af32ce467613da818da52 , < 0032c99e83b9ce6d5995d65900aa4b6ffb501cce (git)
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Linux Linux Affected: 5.1
Unaffected: 0 , < 5.1 (semver)
Unaffected: 5.10.270 , ≤ 5.10.* (semver)
Unaffected: 5.15.221 , ≤ 5.15.* (semver)
Unaffected: 6.1.188 , ≤ 6.1.* (semver)
Unaffected: 6.6.117 , ≤ 6.6.* (semver)
Unaffected: 6.12.46 , ≤ 6.12.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix NULL pointer dereference in l3mdev_l3_rcv\n\nWhen delete l3s ipvlan:\n\n    ip link del link eth0 ipvlan1 type ipvlan mode l3s\n\nThis may cause a null pointer dereference:\n\n    Call trace:\n     ip_rcv_finish+0x48/0xd0\n     ip_rcv+0x5c/0x100\n     __netif_receive_skb_one_core+0x64/0xb0\n     __netif_receive_skb+0x20/0x80\n     process_backlog+0xb4/0x204\n     napi_poll+0xe8/0x294\n     net_rx_action+0xd8/0x22c\n     __do_softirq+0x12c/0x354\n\nThis is because l3mdev_l3_rcv() visit dev-\u003el3mdev_ops after\nipvlan_l3s_unregister() assign the dev-\u003el3mdev_ops to NULL. The process\nlike this:\n\n    (CPU1)                     | (CPU2)\n    l3mdev_l3_rcv()            |\n      check dev-\u003epriv_flags:   |\n        master = skb-\u003edev;     |\n                               |\n                               | ipvlan_l3s_unregister()\n                               |   set dev-\u003epriv_flags\n                               |   dev-\u003el3mdev_ops = NULL;\n                               |\n      visit master-\u003el3mdev_ops |\n\nTo avoid this by do not set dev-\u003el3mdev_ops when unregister l3s ipvlan."
        }
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    "datePublished": "2025-04-16T14:12:52.164Z",
    "dateReserved": "2024-12-29T08:45:45.819Z",
    "dateUpdated": "2026-09-14T11:57:55.772Z",
    "state": "PUBLISHED"
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      "title": "net: fix NULL pointer dereference in l3mdev_l3_rcv",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22103\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:16:04.650\",\"lastModified\":\"2026-09-14T12:17:35.353\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: fix NULL pointer dereference in l3mdev_l3_rcv\\n\\nWhen delete l3s ipvlan:\\n\\n    ip link del link eth0 ipvlan1 type ipvlan mode l3s\\n\\nThis may cause a null pointer dereference:\\n\\n    Call trace:\\n     ip_rcv_finish+0x48/0xd0\\n     ip_rcv+0x5c/0x100\\n     __netif_receive_skb_one_core+0x64/0xb0\\n     __netif_receive_skb+0x20/0x80\\n     process_backlog+0xb4/0x204\\n     napi_poll+0xe8/0x294\\n     net_rx_action+0xd8/0x22c\\n     __do_softirq+0x12c/0x354\\n\\nThis is because l3mdev_l3_rcv() visit dev-\u003el3mdev_ops after\\nipvlan_l3s_unregister() assign the dev-\u003el3mdev_ops to NULL. The process\\nlike this:\\n\\n    (CPU1)                     | (CPU2)\\n    l3mdev_l3_rcv()            |\\n      check dev-\u003epriv_flags:   |\\n        master = skb-\u003edev;     |\\n                               |\\n                               | ipvlan_l3s_unregister()\\n                               |   set dev-\u003epriv_flags\\n                               |   dev-\u003el3mdev_ops = NULL;\\n                               |\\n      visit master-\u003el3mdev_ops |\\n\\nTo avoid this by do not set dev-\u003el3mdev_ops when unregister l3s ipvlan.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: corregir la desreferencia de puntero nulo en l3mdev_l3_rcv Al eliminar l3s ipvlan: ip link del link eth0 ipvlan1 type ipvlan mode l3s Esto puede causar una desreferencia de puntero nulo: Rastreo de llamada: 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 Esto se debe a que l3mdev_l3_rcv() visita Despu\u00e9s de ejecutar ipvlan_l3s_unregister(), dev-\u0026gt;l3mdev_ops asigna el valor NULL a dev-\u0026gt;l3mdev_ops. El proceso es el siguiente: (CPU1) | (CPU2) l3mdev_l3_rcv() | check dev-\u0026gt;priv_flags: | master = skb-\u0026gt;dev; | | | ipvlan_l3s_unregister() | set dev-\u0026gt;priv_flags | dev-\u0026gt;l3mdev_ops = NULL; | visit master-\u0026gt;l3mdev_ops | Para evitar esto, no configure dev-\u0026gt;l3mdev_ops al cancelar el registro de ipvlan l3s.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ipvlan/ipvlan_l3s.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"c675e06a98a474f7ad0af32ce467613da818da52\",\"lessThan\":\"1da52878f7fb74ace304f74325bb89e3e5546b55\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c675e06a98a474f7ad0af32ce467613da818da52\",\"lessThan\":\"d97d6b1bd2b7f2a188d261d44c4519a13b8c406a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c675e06a98a474f7ad0af32ce467613da818da52\",\"lessThan\":\"8da4d7f9141e8dbd3ece2f0e6930a0ea8812c862\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c675e06a98a474f7ad0af32ce467613da818da52\",\"lessThan\":\"52b44d8c653459c658b733d13658afdde45f6836\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c675e06a98a474f7ad0af32ce467613da818da52\",\"lessThan\":\"59599bce44af3df7a215ebc81cb166426e1c9204\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c675e06a98a474f7ad0af32ce467613da818da52\",\"lessThan\":\"f9dff65140efc289f01bcf39c3ca66a8806b6132\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c675e06a98a474f7ad0af32ce467613da818da52\",\"lessThan\":\"0032c99e83b9ce6d5995d65900aa4b6ffb501cce\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ipvlan/ipvlan_l3s.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.1\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.1\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.270\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.221\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.188\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.117\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.46\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14.2\",\"lessThanOrEqual\":\"6.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.1\",\"versionEndExcluding\":\"6.12.46\",\"matchCriteriaId\":\"2D4111B6-DFBE-49AE-8EF0-D64A9F341C18\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.14.2\",\"matchCriteriaId\":\"633A38C1-75C8-452D-8F1C-DA0269FD2687\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0032c99e83b9ce6d5995d65900aa4b6ffb501cce\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1da52878f7fb74ace304f74325bb89e3e5546b55\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/52b44d8c653459c658b733d13658afdde45f6836\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/59599bce44af3df7a215ebc81cb166426e1c9204\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8da4d7f9141e8dbd3ece2f0e6930a0ea8812c862\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d97d6b1bd2b7f2a188d261d44c4519a13b8c406a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f9dff65140efc289f01bcf39c3ca66a8806b6132\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
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      "current_release_date": "2026-06-30T00:45:40+00:00",
      "cve": "CVE-2025-22103",
      "id": "CVE-2025-22103",
      "initial_release_date": "2025-04-16T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
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      "title": "kernel: net: fix NULL pointer dereference in l3mdev_l3_rcv",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-22103.json",
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      "cve": "CVE-2025-22103",
      "id": "CVE-2025-22103",
      "initial_release_date": "2025-04-18T23:19:44Z",
      "product_status:known_affected": "634",
      "product_status:known_not_affected": "195",
      "product_status:recommended": "400",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-22103",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-22103.json",
      "version": "40"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.