CVE-2025-22103 (GCVE-0-2025-22103)
Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2026-09-14 11:57
VLAI
EPSS
VEX
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)
Assigner
References
7 references
Impacted products
2 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) |
guessed | |
| 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) |
guessed |
{
"containers": {
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"defaultStatus": "unaffected",
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"programFiles": [
"drivers/net/ipvlan/ipvlan_l3s.c"
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{
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{
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},
{
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"version": "6.1.188",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.6.117",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.46",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.14.*",
"status": "unaffected",
"version": "6.14.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
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"vulnerable": true
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},
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},
{
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},
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{
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{
"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."
}
],
"providerMetadata": {
"dateUpdated": "2026-09-14T11:57:55.772Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/1da52878f7fb74ace304f74325bb89e3e5546b55"
},
{
"url": "https://git.kernel.org/stable/c/d97d6b1bd2b7f2a188d261d44c4519a13b8c406a"
},
{
"url": "https://git.kernel.org/stable/c/8da4d7f9141e8dbd3ece2f0e6930a0ea8812c862"
},
{
"url": "https://git.kernel.org/stable/c/52b44d8c653459c658b733d13658afdde45f6836"
},
{
"url": "https://git.kernel.org/stable/c/59599bce44af3df7a215ebc81cb166426e1c9204"
},
{
"url": "https://git.kernel.org/stable/c/f9dff65140efc289f01bcf39c3ca66a8806b6132"
},
{
"url": "https://git.kernel.org/stable/c/0032c99e83b9ce6d5995d65900aa4b6ffb501cce"
}
],
"title": "net: fix NULL pointer dereference in l3mdev_l3_rcv",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2025-22103",
"datePublished": "2025-04-16T14:12:52.164Z",
"dateReserved": "2024-12-29T08:45:45.819Z",
"dateUpdated": "2026-09-14T11:57:55.772Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2025-22103",
"date": "2026-09-17",
"epss": "0.00204",
"percentile": "0.10648"
},
"microsoft_vex": {
"current_release_date": "2026-09-13T01:50:41.000Z",
"cve": "CVE-2025-22103",
"id": "msrc_CVE-2025-22103",
"initial_release_date": "2025-09-03T21:51:51.000Z",
"product_status:fixed": "1",
"product_status:known_affected": "8",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "net: fix NULL pointer dereference in l3mdev_l3_rcv",
"url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-22103.json",
"version": "7"
},
"nvd": {
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"affected": [
{
"affectedData": [
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"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ipvlan/ipvlan_l3s.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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},
{
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"versionType": "git"
},
{
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"status": "affected",
"version": "c675e06a98a474f7ad0af32ce467613da818da52",
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},
{
"lessThan": "f9dff65140efc289f01bcf39c3ca66a8806b6132",
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"versionType": "git"
},
{
"lessThan": "0032c99e83b9ce6d5995d65900aa4b6ffb501cce",
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"version": "c675e06a98a474f7ad0af32ce467613da818da52",
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}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ipvlan/ipvlan_l3s.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.1"
},
{
"lessThan": "5.1",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.6.117",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.12.46",
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},
{
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"status": "unaffected",
"version": "6.14.2",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "2D4111B6-DFBE-49AE-8EF0-D64A9F341C18",
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{
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"negate": false,
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"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."
}
],
"id": "CVE-2025-22103",
"lastModified": "2026-09-14T12:17:35.353",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2025-04-16T15:16:04.650",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/0032c99e83b9ce6d5995d65900aa4b6ffb501cce"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"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",
"tags": [
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],
"url": "https://git.kernel.org/stable/c/59599bce44af3df7a215ebc81cb166426e1c9204"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"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",
"tags": [
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],
"url": "https://git.kernel.org/stable/c/f9dff65140efc289f01bcf39c3ca66a8806b6132"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-476"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"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",
"status": "final",
"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",
"version": "3"
}
}
}
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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 |
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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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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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.
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