CVE-2026-23278
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: always walk all pending catchall elements During transaction processi…
Impact
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 [..]
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 4.19.316 before 4.20 from 5.4.262 before 5.5 from 5.10.188 before 5.11 from 5.15.121 before 5.16 from 6.1.36 before 6.2 from 6.3.10 before 6.4 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/4830fb44d12f586f3f544609e086933649a9175a
- https://git.kernel.org/stable/c/77c26b5056d693ffe5e9f040e946251cdb55ae55
- https://git.kernel.org/stable/c/7cb9a23d7ae40a702577d3d8bacb7026f04ac2a9
- https://git.kernel.org/stable/c/ae8f3cedc5f5653a5bed45c5ed016fe156e2af55
- https://git.kernel.org/stable/c/c4d4e86fda707d89eaba80e343321737375f8582
- https://git.kernel.org/stable/c/de47a88c6b807910f05703fb6605f7efdaa11417
- https://git.kernel.org/stable/c/eb0948fa13298212c5f8b30ee48efdae4389ab09
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html