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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-80987

NTB: ntb_transport: Reject oversized TX buffers

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 to < 4890152a3069f5cb58cc24b08cfd5fe95e568fa1affected
  • fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 to < 668aa3238548584ca9772da9cf43ae8c2389bbf1affected
  • fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 to < 9b0fa8a9e1057614a533cc3f18b17f82aab028d8affected
  • fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 to < b6db88cde0fb5c3bd2d3cd2bebcc06b5ce146e88affected
  • fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 to < a7f22105a7df8c7fd74d0af27ace6fa94fe03d87affected
  • fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 to < 6b6bbc6c878d64eacc60877df49fce7b1b6a08d0affected
  • fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 to < 75a604e9f1cfdebda421062fdf42225ca32154cdaffected
  • fce8a7bb5b4bfb8a27324703fd5b002ee9247e90 to < a4f2387db6f1cc2f03abba7f3a6807ad61e26ff7affected

Linux Linux

Default version status: affected

  • 3.9affected
  • 0 to < 3.9unaffected
  • 5.10.270 to ≤ 5.10.*unaffected
  • 5.15.221 to ≤ 5.15.*unaffected
  • 6.1.188 to ≤ 6.1.*unaffected
  • 6.6.157 to ≤ 6.6.*unaffected
  • 6.12.109 to ≤ 6.12.*unaffected
  • 6.18.50 to ≤ 6.18.*unaffected
  • 7.2.4 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References