CVE-2026-23278 (GCVE-0-2026-23278)
Vulnerability from cvelistv5
Published
2026-03-20 08:08
Modified
2026-04-13 06:03
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: always walk all pending catchall elements
During transaction processing we might have more than one catchall element:
1 live catchall element and 1 pending element that is coming as part of the
new batch.
If the map holding the catchall elements is also going away, its
required to toggle all catchall elements and not just the first viable
candidate.
Otherwise, we get:
WARNING: ./include/net/netfilter/nf_tables.h:1281 at nft_data_release+0xb7/0xe0 [nf_tables], CPU#2: nft/1404
RIP: 0010:nft_data_release+0xb7/0xe0 [nf_tables]
[..]
__nft_set_elem_destroy+0x106/0x380 [nf_tables]
nf_tables_abort_release+0x348/0x8d0 [nf_tables]
nf_tables_abort+0xcf2/0x3ac0 [nf_tables]
nfnetlink_rcv_batch+0x9c9/0x20e0 [..]
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: bc9f791d2593f17e39f87c6e2b3a36549a3705b1 Version: 3c7ec098e3b588434a8b07ea9b5b36f04cef1f50 Version: a136b7942ad2a50de708f76ea299ccb45ac7a7f9 Version: 25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8 Version: d60be2da67d172aecf866302c91ea11533eca4d9 Version: dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41 |
||
{
"containers": {
"cna": {
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{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
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{
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{
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{
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}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"lessThan": "6.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.78",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.19",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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"versionEndExcluding": "6.12.78",
"versionStartIncluding": "6.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.19",
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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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"versionStartIncluding": "6.1.36",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.3.10",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: always walk all pending catchall elements\n\nDuring transaction processing we might have more than one catchall element:\n1 live catchall element and 1 pending element that is coming as part of the\nnew batch.\n\nIf the map holding the catchall elements is also going away, its\nrequired to toggle all catchall elements and not just the first viable\ncandidate.\n\nOtherwise, we get:\n WARNING: ./include/net/netfilter/nf_tables.h:1281 at nft_data_release+0xb7/0xe0 [nf_tables], CPU#2: nft/1404\n RIP: 0010:nft_data_release+0xb7/0xe0 [nf_tables]\n [..]\n __nft_set_elem_destroy+0x106/0x380 [nf_tables]\n nf_tables_abort_release+0x348/0x8d0 [nf_tables]\n nf_tables_abort+0xcf2/0x3ac0 [nf_tables]\n nfnetlink_rcv_batch+0x9c9/0x20e0 [..]"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T06:03:28.903Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/eb0948fa13298212c5f8b30ee48efdae4389ab09"
},
{
"url": "https://git.kernel.org/stable/c/de47a88c6b807910f05703fb6605f7efdaa11417"
},
{
"url": "https://git.kernel.org/stable/c/77c26b5056d693ffe5e9f040e946251cdb55ae55"
},
{
"url": "https://git.kernel.org/stable/c/7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9"
}
],
"title": "netfilter: nf_tables: always walk all pending catchall elements",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-23278",
"datePublished": "2026-03-20T08:08:58.566Z",
"dateReserved": "2026-01-13T15:37:45.991Z",
"dateUpdated": "2026-04-13T06:03:28.903Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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