CVE-2026-31518

Description

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.

References

• https://git.kernel.org/stable/c/0c0eef8ccd2413b0a10eb6bbd3442333b1e64dd2
• https://git.kernel.org/stable/c/41aafca57de4a4c026701622bd4648f112a9edcd
• https://git.kernel.org/stable/c/4820847e036ff1035b01b69ad68dfc17e7028fe9
• https://git.kernel.org/stable/c/6a3ec6efbc4f90e0ccb2e71574f07351f19996f4
• https://git.kernel.org/stable/c/6aa9841d917532d0f2d932d1ff2f3a94305aaf47
• https://git.kernel.org/stable/c/88d386243ed374ac969dabd3bbc1409a31d81818
• https://git.kernel.org/stable/c/aca3ad0c262f54a5b5c95dda80a48365997d1224
• https://git.kernel.org/stable/c/df6f995358dc1f3c42484f5cfe241d7bd3e1cd15