netfilter: nf_tables: always walk all pending catchall elements

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-23278
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-20 09:16:13 UTC
Updated2026-04-02 09:16:20 UTC
DescriptionIn 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 [..]

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 628bd3e49cba1c066228e23d71a852c23e26da73 eb0948fa13298212c5f8b30ee48efdae4389ab09 git Not specified
CNA Linux Linux affected 628bd3e49cba1c066228e23d71a852c23e26da73 de47a88c6b807910f05703fb6605f7efdaa11417 git Not specified
CNA Linux Linux affected 628bd3e49cba1c066228e23d71a852c23e26da73 77c26b5056d693ffe5e9f040e946251cdb55ae55 git Not specified
CNA Linux Linux affected 628bd3e49cba1c066228e23d71a852c23e26da73 7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9 git Not specified
CNA Linux Linux affected bc9f791d2593f17e39f87c6e2b3a36549a3705b1 git Not specified
CNA Linux Linux affected 3c7ec098e3b588434a8b07ea9b5b36f04cef1f50 git Not specified
CNA Linux Linux affected a136b7942ad2a50de708f76ea299ccb45ac7a7f9 git Not specified
CNA Linux Linux affected 25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8 git Not specified
CNA Linux Linux affected d60be2da67d172aecf866302c91ea11533eca4d9 git Not specified
CNA Linux Linux affected dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41 git Not specified
CNA Linux Linux affected 6.4 Not specified
CNA Linux Linux unaffected 6.4 semver Not specified
CNA Linux Linux unaffected 6.12.78 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.19 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.9 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0-rc4 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/eb0948fa13298212c5f8b30ee48efdae4389ab09 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/de47a88c6b807910f05703fb6605f7efdaa11417 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/77c26b5056d693ffe5e9f040e946251cdb55ae55 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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