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CVE-2026-23278

HIGH
7.8

Description

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 Details

CVSS v3.1 Score7.8
SeverityHIGH
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorLOCAL
ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
Published3/20/2026
Last Modified4/2/2026
Sourcenvd
Honeypot Sightings0

References

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

IOC Correlations

No correlations recorded

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