netfilter: nf_tables: always walk all pending catchall elements
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 [..]
CVE-2026-23278
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-23278
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "d60be2da67d172aecf866302c91ea11533eca4d9",
"lessThan": "c4d4e86fda707d89eaba80e343321737375f8582",
"versionType": "git"
},
{
"status": "affected",
"version": "628bd3e49cba1c066228e23d71a852c23e26da73",
"lessThan": "4830fb44d12f586f3f544609e086933649a9175a",
"versionType": "git"
},
{
"status": "affected",
"version": "628bd3e49cba1c066228e23d71a852c23e26da73",
"lessThan": "eb0948fa13298212c5f8b30ee48efdae4389ab09",
"versionType": "git"
},
{
"status": "affected",
"version": "628bd3e49cba1c066228e23d71a852c23e26da73",
"lessThan": "de47a88c6b807910f05703fb6605f7efdaa11417",
"versionType": "git"
},
{
"status": "affected",
"version": "628bd3e49cba1c066228e23d71a852c23e26da73",
"lessThan": "77c26b5056d693ffe5e9f040e946251cdb55ae55",
"versionType": "git"
},
{
"status": "affected",
"version": "628bd3e49cba1c066228e23d71a852c23e26da73",
"lessThan": "7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9",
"versionType": "git"
},
{
"status": "affected",
"version": "bc9f791d2593f17e39f87c6e2b3a36549a3705b1",
"versionType": "git"
},
{
"status": "affected",
"version": "3c7ec098e3b588434a8b07ea9b5b36f04cef1f50",
"versionType": "git"
},
{
"status": "affected",
"version": "a136b7942ad2a50de708f76ea299ccb45ac7a7f9",
"versionType": "git"
},
{
"status": "affected",
"version": "25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8",
"versionType": "git"
},
{
"status": "affected",
"version": "dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41",
"versionType": "git"
},
{
"status": "affected",
"version": "6.1.36",
"lessThan": "6.1.177",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.19.316",
"lessThan": "4.20",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.4.262",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.10.188",
"lessThan": "5.11",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.121",
"lessThan": "5.16",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.3.10",
"lessThan": "6.4",
"versionType": "semver"
}
],
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.177",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.144",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.78",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.19",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.9",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-23278
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39837 · Revision 1
- Added to Heist Feed
- Publisher date