CVE-2026-80987High· 7.5▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: NTB: ntb_transport: Reject oversized TX buffers ntb_process_tx() handles an oversized buffer by calling tx_handler() with a NULL data pointer and returning success. nt…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · 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.
Exploit-prediction probability, daily snapshots since Sep 12.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
— → 4.4
none → medium
— → 4.4
none → medium
— → 7.5
none → high
7.5 → 4.4
high → medium
7.5 → 5.5
high → medium
0.2% → 0.7%
5.5 → 7.5
medium → high
Last analysed / modified upstream
In the Linux kernel, the following vulnerability has been resolved:
NTB: ntb_transport: Reject oversized TX buffers
ntb_process_tx() handles an oversized buffer by calling tx_handler() with a NULL data pointer and returning success. ntb_netdev therefore neither frees the skb in its completion callback nor takes its enqueue error path, leaking it.
Reject oversized buffers in ntb_transport_tx_enqueue() before acquiring a queue entry and return -EMSGSIZE. The caller retains ownership of the buffer, and the preceding netdev patch frees the skb when enqueue returns this permanent error.
Linux >= fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 4890152a3069f5cb58cc24b08cfd5fe95e568fa1Linux >= fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 668aa3238548584ca9772da9cf43ae8c2389bbf1Linux >= fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 9b0fa8a9e1057614a533cc3f18b17f82aab028d8Linux >= fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < b6db88cde0fb5c3bd2d3cd2bebcc06b5ce146e88Linux >= fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < a7f22105a7df8c7fd74d0af27ace6fa94fe03d87Linux >= fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 6b6bbc6c878d64eacc60877df49fce7b1b6a08d0Linux >= fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < 75a604e9f1cfdebda421062fdf42225ca32154cdLinux >= fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 < a4f2387db6f1cc2f03abba7f3a6807ad61e26ff7Linux 3.9Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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