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medium5.5

CVE-2026-31518

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, es…

Impact

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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 5.6 before 5.10.253
from 5.11 before 5.15.203
from 5.16 before 6.1.168
from 6.2 before 6.6.131
from 6.7 before 6.12.80
from 6.13 before 6.18.21

Weakness classification

CWE-401

References