CVE-2026-23278

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Source
https://cve.org/CVERecord?id=CVE-2026-23278
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23278.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-23278
Downstream
Published
2026-03-20T08:08:58.566Z
Modified
2026-04-02T13:12:19.958840Z
Summary
netfilter: nf_tables: always walk all pending catchall elements
Details

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/nftables.h:1281 at nftdatarelease+0xb7/0xe0 [nftables], CPU#2: nft/1404 RIP: 0010:nftdatarelease+0xb7/0xe0 [nf_tables] [..] _nftsetelemdestroy+0x106/0x380 [nftables] nftablesabortrelease+0x348/0x8d0 [nftables] nftablesabort+0xcf2/0x3ac0 [nftables] nfnetlinkrcvbatch+0x9c9/0x20e0 [..]

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23278.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
628bd3e49cba1c066228e23d71a852c23e26da73
Fixed
eb0948fa13298212c5f8b30ee48efdae4389ab09
Fixed
de47a88c6b807910f05703fb6605f7efdaa11417
Fixed
77c26b5056d693ffe5e9f040e946251cdb55ae55
Fixed
7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
bc9f791d2593f17e39f87c6e2b3a36549a3705b1
Last affected
3c7ec098e3b588434a8b07ea9b5b36f04cef1f50
Last affected
a136b7942ad2a50de708f76ea299ccb45ac7a7f9
Last affected
25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8
Last affected
d60be2da67d172aecf866302c91ea11533eca4d9
Last affected
dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23278.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.4.0
Fixed
6.12.78
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.19
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
6.19.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23278.json"