CVE-2026-23278

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 [..]

The following products are affected by CVE-2026-23278 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-23278.

URL	Resource
https://git.kernel.org/stable/c/77c26b5056d693ffe5e9f040e946251cdb55ae55
https://git.kernel.org/stable/c/7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9
https://git.kernel.org/stable/c/de47a88c6b807910f05703fb6605f7efdaa11417
https://git.kernel.org/stable/c/eb0948fa13298212c5f8b30ee48efdae4389ab09
https://lore.kernel.org/linux-cve-announce/2026032036-CVE-2026-23278-4dcc@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2026-23278
https://www.cve.org/CVERecord?id=CVE-2026-23278