UnratedFix available
net: remove WARN_ON_ONCE when accessing forward path array
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: net: remove WARN_ON_ONCE when accessing forward path array Although unlikely, recent support for IPIP tunnels increases chances of reaching this WARN_ON_ONCE if userspace manages to build a sufficiently long forward path. Remove it.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.202, 6.1.165, 6.12.75, 6.18.14, 6.19.4, 6.6.128
- CVEs
- CVE-2026-45847
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 01:00 UTC · Revision 1
Source evidence
net: remove WARN_ON_ONCE when accessing forward path array
core-osv · Original sourcePublished 27 May 2026, 12:15 UTC
In the Linux kernel, the following vulnerability has been resolved: net: remove WARN_ON_ONCE when accessing forward path array Although unlikely, recent support for IPIP tunnels increases chances of reaching this WARN_ON_ONCE if userspace manages to build a sufficiently long forward path. Remove it.
osv:CVE-2026-45847
Kernel
Fixed versions: 5.15.202, 6.1.165, 6.6.128, 6.12.75, 6.18.14, 6.19.4
Complete source record
{
"id": "d479ee3abb14d8d5c876b172abeccb03eadbad4763185a6e185ef6df10885964",
"url": "https://osv.dev/vulnerability/CVE-2026-45847",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "net: remove WARN_ON_ONCE when accessing forward path array",
"summary": "In the Linux kernel, the following vulnerability has been resolved: net: remove WARN_ON_ONCE when accessing forward path array Although unlikely, recent support for IPIP tunnels increases chances of reaching this WARN_ON_ONCE if userspace manages to build a sufficiently long forward path. Remove it.",
"evidence": "osv:CVE-2026-45847",
"products": [
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"value": "Kernel",
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},
"prerequisites": [],
"fixed_versions": [
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"value": "5.15.202",
"evidence": "/affected/1/ranges"
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{
"value": "6.1.165",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.128",
"evidence": "/affected/1/ranges"
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{
"value": "6.12.75",
"evidence": "/affected/1/ranges"
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{
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{
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"severity": "unknown",
"structured": {
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"aliases": [
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"affected": [
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"type": "GIT",
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{
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{
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{
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"events": [
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{
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{
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"events": [
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{
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},
{
"type": "ECOSYSTEM",
"events": [
{
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{
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},
{
"type": "ECOSYSTEM",
"events": [
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{
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{
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"events": [
{
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{
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},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
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{
"fixed": "6.19.4"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45847.json"
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}
],
"modified": "2026-10-28T02:30:41.235213442Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/008e7a7c293b30bc43e4368dac6ea3808b75a572",
"https://git.kernel.org/stable/c/50422613185d505201167e8bdd2f2700790d5db6",
"https://git.kernel.org/stable/c/548244c2f542aa0ad49453e9306e715a3877bc44",
"https://git.kernel.org/stable/c/9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6",
"https://git.kernel.org/stable/c/959ea349c7e2d4edf07b6838ca7e59345fe61a08",
"https://git.kernel.org/stable/c/a78d055ba7c31103ad02f8eceb0c452e154d2660",
"https://git.kernel.org/stable/c/dcf9b3c90e5560339649d088836529883fb509f3",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45847.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-45847",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45847.json"
}
},
"related_cves": [
{
"value": "CVE-2026-45847",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 508854,
"published_at": "2026-05-27T12:15:07.344+00:00"
}