CVE-2026-72252High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_pipapo: don't leak bad clone into future transaction On memory allocation failure the cloned nft_pipapo_match can enter a bad state: - some fields …
▾ 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. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_pipapo: don't leak bad clone into future transaction
On memory allocation failure the cloned nft_pipapo_match can enter a bad state:
This means that the next insertion in the same batch can trigger out-of-bounds writes.
Furthermore, a failure in the first can result in the bad clone to leak into the next transaction because the abort callback is never executed in this case (the upper layer saw an error and no attempt to allocate a transactional request was made).
Record a state for the nft_pipapo_match structure:
Then make it so that deletes and insertions fail when the clone entered ERR state.
In case the very first insert attempt results in an error, free the clone right away.
Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 0ab7b1802f63ca5b288ea59acb467830b83abd6bLinux >= 3c4287f62044a90e73a561aa05fc46e62da173da < cc53703f48558896295f565cd4f5e956d21b7af4Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 047e813324eac2ac60cddfb58bcdbd0144eadb09Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 610e3b73efaec3dd81a95dcda2421ad7d9795bd0Linux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 02b6b0e892aea582590671796fd6eff5b93ea93fLinux >= 3c4287f62044a90e73a561aa05fc46e62da173da < e74f9680e1b64872a51cc7b5bda1edaaa08aa51fLinux >= 3c4287f62044a90e73a561aa05fc46e62da173da < 47e65eff50691f0a5b79d325e28d83ec1da43bcfLinux 5.6Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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