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esp: fix skb leak with espintcp and async crypto

Linux kernel · CVE-2026-31518
0 news outlets0 CERTs and agencies0 researchers

What is it?

In the Linux kernel, the following vulnerability has been resolved: esp: fix skb leak with espintcp and async crypto When the TX queue for espintcp is full, esp_output_tail_tcp will return an error and not free the skb, because with synchronous crypto, the common xfrm output code will drop the packet for us. With async crypto (esp_output_done), we need to drop the skb when esp_output_tail_tcp returns an error.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
Not scored
EPSS
0.2%
First seen
8 h ago
Status
corroborated

All Linux vulnerabilities