CVE-2026-23278High· 7.8▾ TwilightIn 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Aug 3.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.2%
Last analysed / modified upstream
0.2% → 0.2%
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 [..]
linux_kernel >= 4.19.316, < 4.20linux_kernel >= 5.4.262, < 5.5linux_kernel >= 5.10.188, < 5.11linux_kernel >= 5.15.121, < 5.16linux_kernel >= 6.1.36, < 6.2linux_kernel >= 6.3.10, < 6.4linux_kernel >= 6.4.1, < 6.12.78linux_kernel >= 6.13, < 6.18.19linux_kernel >= 6.19, < 6.19.9linux_kernel = 7.0Upgrade past the affected range:
linux_kernel 6.19.9Connected by shared product, vendor, weakness, or advisory.
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